检索结果-南通市图书馆

Health Sequence of Plant Community of sand-accumulation belt at the Upwind Edge of Minqin Oasis

Journal of Landscape Research 2020年第3期12卷 65-69,74页

作者： CHANG Zhaofeng ZHU Shujuan DUAN Xiaofeng ZHAO Peng ZHANG Jianhui Gansu Desert Control Research Institute LanzhouGansu 730070China

A sand-accumulation belt came into being during the process of desert control in recent 60 years at the edge of oasis,especially at the upwind places in desert area in Hexi Corridor of *** them,the sand-accumulation belt at the edge of Minqin Oasis is relatively typical and the most *** vegetation on the sand-accumulation belt is not only the formation factor of the sand-accumulation belt,but also an important factor to maintain the stability of the sand-accumulation *** a certain sense,the health status of the vegetation of the sand-accumulation belt determines the stability of the sand-accumulation *** order to analyze the vegetation status of the sand-accumulation belt,the health sequence analysis of the plant community was carried out of sand-accumulation belt at the edge of Minqin Oasis,by setting 11 lines of equal spacing of sand-accumulation belt at the edge of Minqin Oasis,and through the vegetation survey of more than 60 *** vegetation on the sand-accumulation belt at the edge of Minqin Oasis is generally *** for the health sequence of this study,the health status of vegetation of the sand-accumulation belt formed by artificial sand fixation forest is better than that of vegetation of the sand-accumulation belt formed by natural shrub at the edge of Minqin *** health status of vegetation of the sand-accumulation belt of mixed forest of arbor and shrub is the worst at the edge of Minqin *** dominant species Tamarix laxa on the sand-accumulation belt in the lower reaches of the oasis are seriously withered,and their health is the *** is potential danger of the sand-accumulation belt being blown and *** abandonment of farmland,protection of protection forest and sand-accumulation belt at the edge of farmland in sand area is a new problem,which is worth considering.

关键词： The edge of oasis sand-accumulation belt Plant community Health Minqin

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