In order to scientifically construct windbreak and sand-fixing vegetation and continue to exert ecological functions,it is necessary to evaluate the suitability of psammophytes.Based on the investigation of thirteen species of psammophytes in Dongshawo of Wuwei,which is located in the southwest margin of Tengger Desert,the suitabili-ty evaluation of sand-fixing plants was carried out by using analytic hierarchy process(AHP).The ecological adapta-bility,windbreak and sand-fixing energy efficiency and management cost were taken as the criterion layer,and eleven factors such as population survival rate and plant branch survival rate were taken as the factor layer.The results showed as follows:eight species of psammophytes such as Nitraria tangutorum and Haloxylon ammodendron per-formed well in the three aspects of ecological adaptability,windbreak and sand-fixing efficiency and management cost,and had good windbreak and sand-fixing effect;five kinds of plants such as Lycium chinense had poor perform-ance and were not suitable for windbreak and sand-fixing;eight kinds of psammophytes such as Nitraria tangutorum and Haloxylon ammodendron should be vigorously protected.
关键词
武威东沙窝/防风固沙/沙旱生植物/适宜性评价
Key words
Dongshawo of Wuwei/windbreak and sand-fixing/psammophyte/suitability evaluation
维普
万方数据