Which cities along the coast of China are reclaiming land or beaches from the sea?

At present, some areas of Shanghai Petrochemical and Shanghai Chemical Industry Zone are reclaimed from the sea.

Tianjin Binhai New Area will complete the largest reclamation project in China.

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Photo News

Venue: Tianjin Dongjiang Port Reclamation Site. Mud blowers are continuously "spitting" the mud dug by offshore dredgers ashore; Bulldozers are leveling gravel and soil; The pile driver embeds the cement column in the depth; The workers worked nervously and orderly. ...

Five years later, the largest reclamation project in China will be completed here-33 square kilometers of artificial reclamation, forming a large container terminal area, logistics processing area and port supporting service area, with the functions of terminal loading and unloading warehousing, logistics processing and business office.

And other functions.

The construction of Dongjiang Port Area is just one of many large-scale construction projects in Tianjin Binhai New Area. Since Binhai New Area was incorporated into the national development strategy, a large-scale development and construction boom has been ushered in.

There are unlimited business opportunities in the rolling tide of construction.

More than a dozen major projects have driven huge investments.

"After Binhai New Area was incorporated into the overall national development strategy, some major projects that have been declared for a long time were approved by the state." Wang Kai, director of the Policy Research Office of Tianjin Binhai New Area Management Committee, said that the investment brought by these large-scale projects is unprecedented in Tianjin.

According to the introduction of Tianjin Development and Reform Commission, Tianjin has decided to focus on promoting the construction of about 30 major projects this year, most of which are Binhai New Area projects, including several projects with an investment of over 10 billion yuan. These 30 major projects include 10 projects that started years ago and need to be accelerated this year, 10 projects that are guaranteed to start this year, and 10 projects that have been fully prepared in the early stage. The total investment of 30 projects is 299.5 billion yuan, and the investment will be 34.4 billion yuan this year.

The total investment of 10 major projects started in an all-round way this year is estimated to be 94.8 billion yuan, and the investment completed this year is11400 million yuan. These projects include 65.438+900 million tons of ethylene projects with a total investment of 2.65438 billion yuan, road network projects in the core area of Binhai New Area with a total investment of 65.438+965438 million yuan, infrastructure construction projects in the central business district of Binhai New Area with a total investment of 65.438+500 million yuan and a total investment of 65.438+0. 500 million yuan North Xinjiang power plant project.

These large projects not only have huge investment, but also will form an industrial agglomeration effect and drive related investment. For example, Tianjin Petrochemical's million-ton ethylene project, which will start in June this year, will boost the industrial output value by hundreds of billions of yuan every year, promote the comprehensive upgrading of Tianjin's traditional chemical industry, and form a world-class national petrochemical and chemical base with strong industrial driving force and agglomeration effect on surrounding areas, thus driving related investments.

Infrastructure construction is the key, and 21800 million yuan will be invested this year.

The new round of development and construction of Tianjin Binhai New Area starts with infrastructure construction to enhance the function of urban carrier. This year, 80 key infrastructure projects will be arranged with a planned investment of 21800 million yuan.

Among the 80 infrastructure projects, this year will focus on promoting the construction in five aspects:

First, speed up the construction of urban expressway network. Through the construction of several urban expressways, the traffic links between Tanggu, Hangu and Dagang in Binhai New Area will be strengthened, and the traffic links between Tianjin central city and Binhai New Area will also be strengthened.

The second is to speed up the construction of port-dredging railway and urban rail transit. This year, we will continue to build the southern Xinjiang inbound railway; Accelerate the second phase construction of Jinbin light rail; Start the construction of hub station in Beijing-Tianjin intercity railway new area; Construction of New Traffic Experimental Line Project (Light Rail) in Tianjin Development Zone.

The third is to start the construction of port-city traffic separation project. Focus on the viaduct in the middle section of Haibin Avenue and the overpass along the line, do a good job in the preliminary work such as fund raising, and strive to complete the survey and design in the first half of the year and formally start construction in the second half. Accelerate the construction of the second line of Beijing-Tianjin-Tangshan Expressway and connect with Haibin Avenue as soon as possible.

The fourth is to speed up the construction of municipal, public and energy facilities. Actively promote projects such as Beijiang Power Plant, Dagang Power Plant No.2 Station and 220 kV double-circuit power supply network. Start the construction of two water conveyance systems from Jinbin Waterworks to Kong Lin Industrial Zone and Ninghe Yuelong to Tianjin Development Zone. Promote the seawater desalination projects of 654.38+10,000 tons in Tianjin Development Zone and Dagang District150,000 tons.

The fifth is to promote the key development of regional infrastructure facilities. This year, we will speed up the land acquisition, demolition and land management in key development areas such as the West Zone, Airport Processing Zone, Central Business District and Leisure Tourism Zone of Tianjin Development Zone, and do a good job in the construction of municipal facilities such as roads, electricity, communications, water supply and drainage.

Pi Qian Sheng, director of Tianjin Binhai New Area Management Committee, said that speeding up infrastructure construction needs sufficient funds as a guarantee. On the one hand, Binhai New Area should undertake and make good use of bank loans, and at the same time, it should innovate investment and financing ideas, expand the scope of investment, and raise construction funds through multiple channels.

Rich in land resources, real estate has become a hot spot for investment.

After Binhai New Area was incorporated into the national development strategy, local residents felt the most: there were more large-scale meetings, more construction sites, more people and logistics, and more importantly, house prices rose again and again.

"Three years ago, the house price in Tanggu did not exceed 2,000 yuan/square meter, and it rose to about 4,000 yuan/square meter last year. Now, the average house price here has reached 5500 yuan/square meter. " Mr. Li, who has worked in a foreign company for five years, lamented the huge increase in house prices.

In the past, Binhai New Area, especially the Development Zone, was just a traditional industrial area with imperfect urban functions. Most workers working in the development zone live in the urban area, and there is always a long "bus queue" on the highway connecting the urban area and the development zone during commuting hours. With the promotion of the strategic position of Binhai New Area, especially the positioning of Binhai New Area by the state, it is not only a manufacturing and R&D transformation base, a shipping and logistics center, but also an "ecological city". Therefore, the value of real estate development here has been rediscovered, real estate developers have taken a fancy to its commercial potential, and ordinary citizens also have the desire to live or invest here. The real estate market in Binhai New Area is unprecedentedly active.

According to incomplete statistics, there are currently more than 30 real estate projects for sale, under construction and about to start in Tanggu District and Development Zone of Binhai New Area, with a total construction area of over 5 million square meters. In these projects, the starting price of mid-range properties ranges from 5,200 yuan to 5,600 yuan per square meter, and some high-end houses even reach 1. 1.000 yuan per square meter.

Rong Shuxian, Commercial Director of Tianjin Zhongyuan Real Estate, believes that the population growth rate of Binhai New Area, especially the development zone, will exceed 20% every year. If there are three people in each family, this growth rate will bring about nearly 7,000 houses and a series of needs such as shopping, office and leisure. With the further improvement of the infrastructure level and industrial upgrading in Binhai New Area, more migrants will also create a lot of demand for the development of the real estate industry.

In terms of land development cost, Tianjin Binhai New Area has 1.02 million square kilometers of saline-alkali land, which is not suitable for farming and can only be used as ecological land and construction land, which provides a broad resource platform for real estate development. It is understood that Tianjin has given priority to the planned land use index of Binhai New Area this year. According to the demand for construction land in the new area, the planned land use index of Binhai New Area reached10.02 million hectares in 2006, accounting for 34% of the city's total planning, which was 4.3 times that of Binhai New Area in 2005. A large number of land resources are very attractive to real estate developers.

Land reclamation in the Pearl River Delta urban agglomeration makes the Pearl River Estuary narrow and prone to waterlogging.

Southern Newspaper Network-Southern Metropolis Daily Keywords: Pearl River Estuary

Guangzhou Wanqingsha 2 1 weekly survey: Experts believe that disorderly reclamation can easily lead to waterlogging and red tide.

Review of Land Reclamation in Pearl River Delta Urban Agglomeration (Phase VII)

The Pearl River Estuary has narrowed, which is not only the change of coastline on the map, but also the environmental harm it brings will affect our lives for a long time to come. The important reason for the narrowing of the Pearl River Estuary is the reclamation of land in the Pearl River Estuary urban agglomeration.

The Pearl River Estuary is the area with the most land reclamation in Guangdong. According to statistics, in recent years, the total area of coastal reclamation in Guangzhou, Dongguan, Shenzhen, Zhuhai and Zhongshan has reached 6666.7 hectares. Since 1963, although 1997 was suspended for a time, expert surveys show that Lingdingyang in the Pearl River Estuary is still shrinking after 1997, which shows that people have been at sea for 40 years. It is reported that the water area of Lingdingyang has decreased by nearly 1/ 10 compared with the previous 1977.

When people cheer for the land reserve and almost immediate economic benefits brought by land reclamation, hidden dangers also appear. Geological experts and water conservancy experts said that land reclamation blocked some natural spillway, which led to the rise of groundwater level and waterlogging; The self-purification ability of seawater is weakened, which leads to the deterioration of water quality and red tide.

"Some reclamation projects do not have much impact on the environment at present, but in a few years or decades, they may have an irreversible impact."

-19965438+On February 24th, then Governor Lu Ruihua delivered a speech at the Guangdong Ocean Work Conference.

On April 30th, it was sunny. Wanqingsha Town, Nansha District, Guangzhou (Note: Wanqingsha Town originally belonged to Panyu District. On April 28th, 2005, the State Council approved the establishment of Nansha District, and Wanqingsha Town of Panyu District was transferred to Nansha District. Because the reclamation project was carried out before the zoning change, this paper still uses "Panyu" to refer to Jiuzhong waterfront wharf. A row of fishing boats marked "Walk with the Sea" docked on the shore.

Huazai is the owner of a fishing boat. In the past, fishing boats were rented to city people to fish and eat at sea.

Hua Zai said that the change of their lifestyle was entirely due to land reclamation. Hanako supports this change. "At least it has changed the previous dependence on the sea and changed the previous working method of" drying on the head and steaming under the feet ".

After reclamation, there are a lot fewer fish, and it is difficult to feed a family by fishing. Hua Zai said that in the past, there were at most 30 fishing boats accompanying the sea, but now there are only 14, some of which have been scrapped and some have gone back to fishing.

Huazai's father, Uncle Gen, has lived in Wanqingsha for more than 30 years. He witnessed the whole process of land reclamation in Panyu in recent decades. He still remembers that it was a piece of Wang Yang where Sanyong started. At that time, the sea was rich in seafood, and every time I went out to sea, I got something, so I basically didn't have to worry about life. For decades, with the reclamation of land, the sea surface has become smaller and smaller, and the land has started to rise from the sea surface, gradually forming a distinctive twenty-one perimeter. He said that there were many river worms that could be killed in those years, but now they can't be seen because of the reduction of sea area and serious pollution. "Now, if you go fishing, you have to pay for the gas. “

Fill in the twenty-first circumference of Wanqingsha.

Wanqingsha has 2 1 enclosures, of which 19 enclosures are located at the junction of Neilingdingyang and Guangzhou Pearl River Estuary. Twenty wai and twenty-one wai are two pieces of land extending from the nineteenth wai to the sea, which were formed around 1997.

Uncle Gen said that these 21 areas are all reclamation projects. In the words of the time, this is the result of human conquest of nature.

Sand gushing in the 21st century-the southernmost tip of Guangzhou, before 1997, this is the place with the fastest reclamation speed and the largest reclamation area in Guangdong. Now, when the reporter walked on the embankment paved with fine sea sand, there was no trace of the project at that time. Standing on the dam and looking out, you can clearly see Zhongshan on the other side. Panyu and Zhongshan constantly meet in important places in the sea. According to the introduction of the local elderly, before the sea was surrounded, it was very wide, so it was not easy to see Chu Zhongshan clearly. Later, both sides were surrounded by the sea and the distance was getting closer and closer. "At this speed, Panyu and Zhongshan can be connected in less than ten years."

Panyu district is located in the export waters of the Pearl River to the South China Sea. From north to south, it is a slightly trumpet-shaped estuary with a width of about 2.4 kilometers. Panyu is close to the four main estuaries of the Pearl River system-Jiaomen Waterway, Li Hongqi Waterway, Hengmen Waterway and Humen Waterway, through which 60% of the flood of the Pearl River system is discharged into the bay. According to the data, the sediment flowing downstream from the east, west and north rivers is constantly filling and silting, and the annual sedimentation rate is 2.4 cm. As time goes on, a vast beach has formed here. There is a tidal flat area of 280,000 mu in Jiaomen reclamation area alone, of which the available reclamation area in the near future with a water depth of more than 2 meters is 6.5438+0.3 million mu.

In this regard, the locals believe that "Panyu has the blessing of reclamation."

As early as 1963, Panyu established a reclamation company to be responsible for the reclamation and development of these beaches. Reclamation companies have enclosed these natural beaches and built dams and irrigation systems, which can be used as farmland. 1970, the reclamation company organized a "reclamation battle" in Jiaomen reclamation area. It took two years to concentrate tens of thousands of migrant workers in the county to work in reclamation areas. By 1978, the cultivated land area had expanded by 1733 hectares. The maturity of tidal flat was carried out along the new reclamation and extension direction of the 19th flood. Generally, it takes about 3 years to fill a frame, which is an enclosure. There will be a river between every two fences for drainage and drainage irrigation. These rivers also correspond to the location of the fence and are named by numbers. For example, the river corresponding to circle 19 is named circle 19. During the period from 1984 to 1997 and 14, Panyu Reclamation Company reclaimed 89,800 mu of land (about 5,987 hectares), with an average annual rate of 6.9 1 10,000 mu (about 46 1 hectare).

In fact, Panyu can be said to be an area surrounded by the sea. According to the records of Guangzhou, 80% of its land comes from the sea.

Nowadays, times have changed. When the reporter walked on this land that used to be the ocean, there was no memory of the sea here. After reclamation, the land is criss-crossed, and you will be intoxicated by the charming pastoral scenery here. With the emergence of tourist attractions such as "10,000 mu sunflower garden", rural cuisine in this area is gradually emerging, especially in Panyu. The aquaculture farmers here opened the restaurant to the field pond, and the tourists fished, picked vegetables and cooked by themselves, helping themselves all the way.

Mr. Zhao from Sichuan contracted a big fish pond in Chaiquan Wai. He said that in Panyu alone, hundreds of people rented land by the sea. Some of them planted lotus roots and some planted bananas. They all contracted land from Panyu Reclamation Company (now Nansha Reclamation Company).

The duty of the reclamation company is to organize the orderly development of Panyu beach according to the plan, that is, reclamation. According to the planning of the Ministry of Water Resources and the Pearl River Water Conservancy Commission, the jurisdiction of Panyu Reclamation Company is in the area of Wanqingsha and Longxue Island in old Panyu. However, after 1997 stopped reclamation, the reclamation company mainly helped Panyu district government to manage the 65,438+ten thousand mu of land that had been filled, openly bid for the existing cultivated land and collect land rent.

Director Luo of the Land Office of the Agricultural Reclamation Company said that they mainly leased the land to farmers to grow cash crops and aquaculture. He told reporters that the cost of reclaiming an acre of land in those years was about 6,543,800 yuan. At present, they contract to more than 3,000 farmers at the annual price of 700 yuan. These farmers come from Sichuan, Guizhou, Hunan and other places, as well as some locals. They grow sugarcane, bananas, lotus roots, fish and shrimp on these closed lands, and some agricultural products are exported overseas.

It is reported that these areas can produce thousands of dollars per mu, while ponds can produce more. "Compared with the investment of more than 6,543,800 yuan per mu, the benefits brought are much higher than the investment." Director Luo defines the input-output ratio of reclamation.

The mass production of agricultural and sideline products has brought a large number of people who come to buy specialty products and sightseeing. Every weekend or holiday, some urbanites will post on the internet and find someone to accompany them to Panyu's agricultural reclamation area to enjoy the pastoral scenery. The increase of floating population has brought prosperity to the local economy. Some local people told reporters that before, Wanqingsha also paid attention to the first, third, fifth, fourth and sixth grade markets, but now this phenomenon has faded. "There is basically everything on the street now. Of course, you don't have to buy what you want at a fixed time as before." Driving the market has gradually become a memory in people's minds.

The agricultural economy and tourism economy have gradually taken shape around 2 1 century, from which we can see the economic benefits brought by reclamation in Guangzhou and the Pearl River Delta region.

Narrowing of the Pearl River Estuary leads to waterlogging

However, on the contrary, experts in ocean, geology, water conservancy and other fields have been calling and warning for the ecological impact of land reclamation, which forces us to face up to the environmental and ecological problems that we have long been unwilling to pay attention to or ignore.

There are seven cities around the Pearl River Estuary, followed by Guangzhou, Dongguan, Zhongshan, Zhuhai, Shenzhen, Hong Kong and Macau. With dense population, convenient transportation and developed economy, it is one of the most developed areas in China, and the Pearl River Estuary is also the area with the most land reclamation in Guangdong. According to the statistical results, the total area of coastal reclamation in Guangzhou, Dongguan, Shenzhen, Zhuhai and Zhongshan has reached 6666.7 hectares in recent years, regardless of the engineering sea.

The land reclamation in these cities swallowed up the inland waters and narrowed the Pearl River estuary.

During the period of 1996, a catastrophic flood occurred in South China, which occurred once every 50 years in Wuzhou, the middle reaches of the Pearl River, but once every 200 years in Ying Ge Mouth, the lower reaches of Zhongshan. Yang Chaoqun, a senior geoscientist in Guangdong Province, said in an interview with the media at that time that reclamation led to siltation in the estuary and poor flood discharge. In recent years, floods have occurred in the Pearl River Delta, which is closely related to the siltation caused by reclamation and the rise of river bed water level. Director Luo of the Land Office of Reclamation Company admitted in an interview with this reporter that when a group of experts were conducting research at that time, some geological experts and water conservancy experts put forward similar views: Reclaiming land from the sea hindered some natural spillway, which led to the local rise of groundwater level, which led to waterlogging in cities above spillway, which in turn led to soft land and destruction of underground water system. The terrible thing is that the Pearl River Delta region is low-lying and the soft foundation is widely distributed. In fact, some experts released information after investigation, saying that in recent years, the foundations of many buildings in Guangzhou and Shenzhen have been soaked or even cracked, and the basements have been flooded, which is related to the rising groundwater level.

Starting from the Longxue Bridge in Panyu Shiliuwei, you can reach Nansha Port under construction. According to the plan, after the completion of Nansha Port in Longxue Island, a square equal to 10,000 hectares of sand will be expanded to the south, and the reclamation area is expected to reach 1.5 million mu. Director Luo said that the reclamation of Longxue Island was approved by the State Council, and it was not arbitrary.

The background of Director Luo's remarks is as follows:1In May, 1996, the Guangdong Provincial Government promulgated the Regulations on the Use and Management of Sea Areas in Guangdong Province, which stipulated that the land department should organize expert argumentation with the departments of marine, aquatic products and water conservancy, and after it was reported to the people's government at or above the county level for confirmation, the marine administrative department at the same level would issue a certificate for the use of sea areas and pay the sea area use fee. Therefore, Panyu stopped reclamation at 1997. 199 10 The Ministry of Water Resources issued the Measures for the Regulation and Management of the Pearl River Estuary, demanding that the disorderly, excessive and unpaid reclamation be resolutely stopped. At the Guangdong Ocean Work Conference on February 24, 65438, Lu Ruihua, then governor of Guangdong Province, pointed out that "some reclamation projects have little impact on the environment at present, but in a few years or decades, they may have irreparable impact" and demanded that "all reclamation projects should be stopped first and started only after strict argumentation".

Since 2003, Professor Xia Zhen of Guangzhou Marine Geological Survey has conducted a three-year survey on the marine geological environment in the coastal waters of the Pearl River Delta. The project was initiated by China Geological Survey.

According to Professor Xia Zhen's investigation, after 1997, the Lingdingyang in the Pearl River Estuary is still shrinking. Zhongshan, which is adjacent to Panyu, continues to surround the sea. From the satellite photos studied by Guangzhou Marine Geological Survey in 1996 and 2003, it can be seen that the area of Zhongshan Hengmen increased by 1/3 after 1996 and expanded into a huge rectangle in the direction of Li Hongqi waterway. That is to say, during the period of 1996-2003, Zhongshan Hengmen extended 6.3 kilometers to the sea, and the largest piece of reclaimed land reached 8.6 square kilometers, most of which was used to grow cash crops such as bananas. Just like another Panyu.

Professor Xia Zhen said that in fact, many people, especially local government officials, are aware of the importance of the environment, but under the premise of economic development, they can only sacrifice the environment. Not many people are willing to explore the road of coordinated development between them, not to mention that they may not succeed and there is still a long way to go.

According to Professor Xia Zhen, in recent years, the scale of reclamation on the west bank of the Pearl River Estuary is stronger than that on the east bank of the Pearl River Estuary. Because in addition to engineering construction, Zhongshan and Panyu also have large-scale reclamation projects. Among them, the most changes in the west bank are the east and west sides of Zhongshan Hengmen, the newly reclaimed Nineteen Chung and Longxue Island in Panyu. The land of Longxue Island in Panyu, Guangzhou extends as far as 7.2 kilometers into the sea, and the largest reclamation area reaches 65,438+08.3 square kilometers. The coastline of the newly reclaimed Jiuchong River extends for 2.85 kilometers as far as possible.

Located on the east coast, the coastline of Shenzhen Bay is the longest 1.4 km, Shekou Bay is about 0.7 km, Dachan Bay is about 1.5 km, and the northern part of Qi 'ao Island is about 0.8 km.

The tide of reclaiming land from the sea has gradually eroded the waters of the Pearl River Estuary, tightened the pockets of the inner Lingdingyang, made the seawater of the Lingdingyang shallow, the navigation channel was not as open as before, the navigation channel shrank and the Lingdingyang shrank.

Professor Li Pingtian, a researcher at Guangzhou Institute of Geography, Guangdong Academy of Sciences, who has made a special study on this, once told the media that Lingdingyang shrank and eventually disappeared, which is not controversial in the scientific community. Now, the main research is how long it will disappear. At present, there are two opinions: 780 years and 100 years.

Ecological destruction and water quality deterioration

"At present, I still think that the advantages of Panyu reclamation outweigh the disadvantages." Director Luo said: "There is a theoretical basis for land reclamation in Panyu. First, the reclamation here has a long history; Secondly, according to the investigation report of the Pearl River Water Resources Commission, the four estuaries of the Pearl River belong to weak tidal estuaries, and the speed of the Pearl River water coming here is reduced, resulting in a large amount of sediment deposition. "Even if it is not enclosed, it will become land. "

"We reclaimed these beaches by digging up sediments in the middle of the river and reclaiming land in the estuary. Although this is land reclamation, from another perspective, it actually dredges the runoff and is conducive to the smooth flow of the Pearl River water. " Director Luo said this.

"We reclaimed land from the sea and reserved a lot of land resources for the government. According to Guangzhou's southern expansion strategy, Panyu and Nansha will be key areas for Guangzhou's future development, and such land reserves are very important. " Director Chen of the Party and Government Office of Reclamation Company is also the general manager of Guangzhou Nansha Port Development and Construction Company. He believes that with the increasing population and the continuous expansion of urban construction to rural areas, coastal reclamation is almost inevitable.

His basis is that 30,000 mu of land reclaimed from the sea in Panyu has been reclaimed by the government, and these 30,000 mu of land are now taken fancy to by several large companies, and land consolidation and factory construction are under way.

However, looking back on the land reclamation in Panyu in the past 40 years and looking at the development of Panyu now, it is obvious that the speed of Guangzhou's expansion to the south is not as fast as that of people's land reclamation!

On the other hand, the excessive reclamation in the Pearl River Estuary is not worth the loss in the eyes of many experts. Take the flood as an example. After 65,438+0,996,5438+0 years, the water conservancy construction in Zhongshan City has reached 65,438+0.24 billion yuan, and the income from reclamation is far from enough to reinforce dikes.

In addition, the land reclamation in other cities in the Pearl River Estuary of Guangdong Province is in a disorderly and excessive state, and many projects are blindly and illegally reclaimed without scientific demonstration, environmental impact assessment report and application for sea area use permit. This reclamation has caused the Pearl River Estuary to shrink, the water level to rise, the waterway to become smaller, the tidal capacity to decline and the ecological damage to be serious.

Experts believe that the smaller the port is, the smaller the tidal range will be, so that the scouring capacity of the tide will be reduced and the tidal absorption in the port will be reduced. The self-purification ability of seawater is weakened, which leads to the deterioration of water quality and may cause red tide. Since 1990, there have been 22 recorded red tides in the whole province, which have caused great losses to local fishery production.

It should also be noted that Professor Xia Zhen's investigation found that there were a lot of shoals in the Pearl River Estuary, which often caused ships to run aground.

Encircling the sea has also destroyed the homes on which some marine life depends.

Director Luo of the Land Office of the Reclamation Company also admitted that reclamation will definitely bring some bad things. For example, he said that in the past, the problem of marine biodiversity, after reclamation, the wetland area became less and less, and the number of biological species became less and less. Land reclamation has also led to the destruction of a large number of mangroves.

Fortunately, in Guangdong, people have gradually realized the ecological changes brought about by land reclamation, and governments at all levels have begun to consider the price paid to the ocean. For example, in June, 2004, 5438+065438+ 10, the Shenzhen Municipal Government issued a document requesting that the 16 reclamation area, including Shajing and Baoan, should be reclaimed strictly within the scope of examination and approval and should not be reclaimed at will.

"In the fields around the sea, it is said that the sea is surrounded and there is a sigh in the ocean." In the Pearl River Delta, when many areas are still pregnant with the impulse to go to sea, perhaps we may set foot on Lingdingyang, a land without sea, leaving only a sigh.

Reclamation peak

The advantages outweigh the disadvantages.

□ The four estuaries of the Pearl River belong to weak tidal estuaries, and the speed at which the Pearl River water reaches here is reduced, resulting in a large amount of sediment deposition, which will turn into land even if it is not enclosed.

Reclaiming land from the sea has reserved a lot of land resources for the government.

the loss outweighs the gain

□ After Zhongshan City 199 1 year, the investment in water conservancy construction to resist floods has reached 124 billion yuan, and the income from reclamation is far from enough to be used for investment in strengthening dikes.

-Illegal reclamation narrows the Pearl River Estuary, raises the water level, narrows the waterway, reduces the tidal capacity and causes serious ecological damage. The self-purification ability of seawater is weakened, which leads to the deterioration of water quality and red tide.

Writing/Photography: Our reporter Lin Tan Intern Jiang Wenyu