单 位：
甘肃省治沙研究所;国家林业和草原局甘肃濒危动物保护中心;武威职业学院
关键词：
武威东沙窝;防风固沙;沙旱生植物;适宜性评价
摘 要：
为科学营建防风固沙植被并持续发挥生态功能,需要对沙旱生植物进行适宜性评价.通过对地处腾格里沙漠西南缘的武威东沙窝的13种沙旱生植物调查,采用层次分析法(AHP),将生态适应性、防风固沙能效和管理成本作为准则层,种群存活率、植株枝条成活率等11个因子为因子层,对防风固沙植物进行了适宜性评价.结果表明:白刺、梭梭等8种沙旱生植物在生态适应性、防风固沙能效和管理成本3方面表现良好,具有良好的防风固沙作用;枸杞等5种植物表现较差,不适宜防风固沙;白刺、梭梭等8种沙旱生植物须大力加以保护.
译 名：
Suitability Evaluation of Windbreak and Sand-fixing Plants in Dongshawo of Wuwei
关键词：
Dongshawo of Wuwei%windbreak and sand-fixing%psammophyte%suitability evaluation
摘 要：
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.
