Shengli West Lake environmental protection practice activity composition 500 words.

Hangzhou West Lake is located in the west of Hangzhou, Zhejiang Province. It is famous at home and abroad for its beautiful lakes and mountains and numerous places of interest. It is a famous tourist attraction in China, also known as "paradise on earth". The water surface area of the West Lake is about 4.37 square kilometers (including 6.3 square kilometers of islands in the lake), and the circumference of the lake shore is 15 kilometers. The average water depth is 2.27 meters, and the deepest part is

About 5 meters, the shallowest part is less than 1 meter. Northern Hunan is 3.3 kilometers long and 2.8 kilometers wide from east to west. Su Causeway and Bai Causeway divided the lake into five parts: Lihu Lake, Waihu Lake, Yuehu Lake, Xili Lake and Xiaonanhu Lake. 1982 west lake was designated as a "national scenic spot", and 1985 was selected as one of the "top ten scenic spots in China".

The West Lake was called "Qiantang Lake" in ancient times. The ancient poet Su Shi commented on this: "If you want to compare the West Lake to learning Chinese characters, light makeup is always appropriate." Also known as "Xizi Lake".

The shape of the West Lake is almost an equiaxed polygon. The lake is divided into five sub-lakes by artificial dikes of Gushan, Su Causeway and Bai Causeway, and the sub-lakes are connected by bridge opening. The water in each part can not be fully mixed, resulting in the difference of water quality in each lake. Most of the runoff recharge first enters the three sub-lakes on the west side, and then enters the Outer West Lake. The total area of the lake is 5.593 square kilometers; The total volume is 1. 1 100 million cubic meters, and the average water depth is 1.97.

Rice; The sediments of West Lake are a kind of lake and marsh sediments with particularly high organic matter content, belonging to silty clay or silty loam. The top layer is all algal skeleton sapropelic layer (black organic clay), the middle layer is peat layer or swamp soil, and the bottom layer is basal silt layer. The rivers entering the lake are short-flowing, and the main recharge rivers are Jinsha River, Longhong River and Changqiao River.