河口生態(tài)護(hù)岸英語ppt

1、 reporter: wuyan 15.12.24River ecological revetmentCOVERY problems existing in the traditional channel revetmentthe difference between the ecological revetment and traditional revetmentecological revetment technology一、 Problems existing in the traditional channel revetmentThe influence of the ecolog

2、ical environment -The environment around the revetment is beyond all recognition ; the relationship of soil and water is broken up ; seperate the creatures and microorganisms in the water from land ; natural living environment is deteriorated.The influence of the human life environment -After river

3、bank revetment is built, the river loses their original function, waterfront environment changes, people lose their natural hydrophilic, leisure and entertainment.The influence on the natural landscape -It is difficult to find the harmonious picture of man and water. 二、the ecological revetment The p

4、recondition of ecological revetment is to protect a good living environment and the natural landscape .The ecological revetment guarantees itself has a certain strength, safety and durability, at the same time, is suitable for biological growth and the imitation of nature. It meets the following req

5、uirments: security.It is a basic functions of water conservancy facilities. biological. There didnt have a significant impact on the aquatic animals hydrophilic.It sets up the hydrophilic platform. Landscape.It is in harmony with the surrounding environment. 三、The difference between the ecological r

6、evetment and traditional revetment （1）Design concept （2）River morphology （3）material （4）Design and construction （5）Effect of engineering四、Ecological revetment technology(5種） Solid soil slope protection of plants Stone cage net ecological revetment structure Vegetation type ecological concrete slope

7、protection Porous ecological planting Natural revetmentSolid soil slop protection of plants(固土植物護(hù)坡） Using the plant which has developed root, it can prevent water loss and soil erosion, and can meet the demand of ecological environment restoration, can also manufacture landscapes.Stone cage net ecol

8、ogical revetment structure (網(wǎng)石籠結(jié)構(gòu)生態(tài)護(hù)岸）It can construct barbed wire and gravel composite planting basement.In other word,it is made up of galvanized or welded wire mesh cage rubble, fertilizer and planting soil .Mas tip of the Yangtze river barbed wire and gravel composite planting basementIt is also

9、 known as green concrete, made from porous concrete, water-retaining material, slow release fertilizer and topsoilVegetation type ecological concrete（植被型生態(tài)混凝土）The porous structure of revetment（多孔質(zhì)結(jié)構(gòu)護(hù)岸） Using natural materials such as stone, concrete casting, which is suitable for the bank protection

10、 structure form of plant and animal life.This kind of bank protection, but also meet the requirements for the ecological and landscape typesJapanese kumamoto green river Natural revetment(自然型護(hù)岸）With natural vegetation, the original stone, wood and other materials to replace concrete revetment, it ca

11、n try to create a river which is close to nature.SUMMY Today,in the one hand,our government advocates the hamony between man and nature .In the other hand,channel governance changes the model from the past only pay attention to safety, economic management model to maintain the diversity of the natural characteristics of the river and water ecological paradigm shift.The emergence of ecological revetment conform to the requirements of symbiosis between man and nature, not only is a gr