An Analysis Of Benefits And Existing Problems About The Project Of Pastureland Rehabilitation For Natural Grassland In MinQin County

This paper expounded the background,significance and research progress of the implementation of the project of grazing and returning grass in Minqin County.Based on the present situation of grassland degradation and combining with the current situation of the implementation of the project of grassland restoration in Minqin County,this article analyzes the effects of the grazing land restoration project on ecological,economic development and the community in Minqin County,pointed out the outstanding problems of the process that the project implementation.clearing the purpose of grazing,causing analysis,putting forward the question and drawing conclusions.It is worth to further study,in order to ensure that the grazing land and ecological environment in an orderly development.Changes of plant community characteristics: After the project was implemented,the richness index(R),and species diversity index(SW)and evenness index(E)of the grassland plant community were significantly improved.The implementation of this project not only to gradually restore the original vegetation in Minqin pastoral areas,but also through the implementation of the project to increase pastoral plant diversity,the maintenance of local inherent special plant communities and alien plant community stability,and thus expand distribution area that plant community and the coverage of vegetation of Minqin pastoral areas,thus increasing the vegetation coverage rate of oasis on the basis of increasing plant stock and natural forage dry matter in Minqin pasture.Vegetation structure and hay yield: Through the implementation,the plant height,vegetation cover and hay yield(referred to as "twice a volume")increased significantly.The restoration of pasture vegetation,in turn,will effectively improve the content of soil organic matter(SOM)and water retention in the pastoral area,building a green barrier and the ecological corridor for further sustainable agriculture and animal husbandry in Minqin.Soil nutrient status: The implementation of grazing land restoration project can significantly improve the soil nutrient status of degraded grassland,improve soil water content and organic matter(SOM),nitrogen(N),phosphorus(P)content.In the process of project implementation,compared with those in the grazing area,grazing area and grazing area,soil organic matter(SOM),soil total nitrogen(TN)and available nitrogen(AN)contents,Soil total phosphorus(TP)and available phosphorus(AN)which in the natural pasture of free grazing area content were significantly reduced.Social and economic benefits: the implementation of the project to graze,to promote the social economic benefits significantly enhanced in Minqin county.After the implementation of the project,the production and living style of farmers and herdsmen from a single "grazing" into a "farming + planting + working + business" mode of diversification,and vigorously develop captive breeding,production from wheat-based single Crop cultivation into a good balance for livestock husbandry mainly livestock "grass livestock" model,which is Minqin ecological protection project to achieve a virtuous circle is essential to an important part,but also to Minqin pasture Project implementation has a greater depth of development space,in order to achieve the harmonious development of ecological environment,economic development and human society,and leading farmers,herdsmen into a well-off road.