Fabricative Technology Of Planting Vegetables On Ecological Bank Of The Yangtse Rive

With the rapid development of society, people's demands for environment are gradually stepup. Ecological slope protection technology emerges as the times require, which can not only protect banks, but also decontaminate the water and make banks beautiful. The applications of ecological slope protection technology appear in groovy riverways and roads, but not in banks of rivers which water level changes hugely. Such as the Yangtse River. In this dissertation the key part of building ecological bank—how to planting vegetables on the bank is studied. The major results are as follows:(1) The kinds of vegetables that plant on the banks are screened out. Take chlorophyllous content and photosynthesis as indexes to scale the endurance of vegetables in different inundation height and durative period. It turns out that the endurance of Pensacola Bahiagrass (Paspalum notation) is the strongest; Reed canary-grass (Phalaris arundinacea L) and Tall Fescue (Festuca elata Keng) take second place. White Clover (Trifolium pratense Linn.) survived after the flood on the half- inundation condition. And on the full- inundation condition Perennial Ryegrass (L. muttiflorum) and Bermudagrass (Cynodon dactylon (Linn.) Pers) may survived only for 5~15 days. The sight of ecological slope is considered. Since during summer the slope is inundated with tidewater, the sight of slope during autumnal and spring is more important. Because of the above, the scheme of mix Phalaris arundinacea L., Trifolium pratense Linn., Festuca elata Keng and L. muttiflorum together to plant on ecological slope is decided.(2) Compared with soil, the substrates provide more suitable environment for vegetables. Considering the bank is laid by concrete brickworks and concrete emitted alkalescent mater, the substrates that contained more than 50% acetic chaff are used. And the substrate which is made of 70% acetic chaff and 30% soil is suitable for Festuca elata Keng and Trifolium pratense Linn.. But Phalaris arundinacea L. and L. muttiflorum are grow better in the substrate which is made of 50% acetic chaff, 20% reed powder and 30% soil.(3) The four kinds of vegetables that mentioned above are transplanted in different substrates, which set up on the bank of Yangtse River, in January, February and March respectively. And take the length of vegetables as index to observe the growth of vegetables that transplant at different times. It shows that transplant vegetables in...