| Low hills gully area of Estern Liaoning is the economic developed ones,It was the second areas ofserious soil erosion in Liaoning province. The gully is the main factors causing soil erosion. The severeerosion gully is the direct cause of the mountain torrents, collapse, landslide. For gully control,development is the important means of control soil erosion in low hills gully of Liaodong area. It is alsothe effective way to build ecological civilization and promote the sustainable development of economicsociety.In order to provide technical support for gully control in low hills gully of Liaodong area. Thisresearch took Xiuyan County as the typical area. By the means of investigation, we found out the mainfactors of gully erosion. We carry out research from the gully morphology and the dynamic index of soilerosion. Used SPSS to analysis gully classification and build different types of gully harness anddevelopment patterns.The conclusion of this thesis are as follows:After investigation, obtaining100gully basic information entropy, using principal componentanalysis and fuzzy clustering analysis, the ravine is divided into three categories:" V" type developmentgully," box" type of stable gully," U" type of stable gully.The establishment of "V" type development point, line, surface gully harness and developmentpatterns. Gully head adopts double ditch and bank protection measures, construction of dam system,gully side slope cultivated land management measures, reduce soil erosion, control" V" typedevelopment ditch headward erosion, increasing forest coverage, protect the farmland, improve soilfertility, to stabilize the income of local farmers.To establish a "box" type of stable gully of comprehensive harness and development patterns. Thegully sides of silkworm field reality, the silkworm field adopted protective forest grass shrub vegetation,less cutting, such as ecological restoration measures, restoration of forest coverage, improve theproductivity of silkworm field; sloping land taken terraced land remediation measures; gully damsystem layout of control soil and water loss. Through the above measures, constitute a "box" type ofstable channel of comprehensive harness and development patterns, for the low mountains and hills ofLiaodong, similar to the Gully Harness and development is a very good reference.The establishment of "U" type of stable channel management and development mode. The mainmeasures of slope ecological restoration, channel layout of dam system inAccording to the three different types of gully management development, set up three kinds ofmanagement pattern of development, and achieved very good ecological benefit, economic benefit andsocial benefit, the low mountains and hills of Liaodong Gully Harness and development has very goodguidance and reference value. |
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