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本文以河套灌区两种同龄的新疆杨(P.albavarpyramidalis)和小美旱杨(P.popularis,)防护林网为研究对象,从动力效应、热力效应、水文效应等方面确定评价指标,并用灰色局势决策方法计算两种防护林各阶段综合效果测度值,对两种杨树防护林综合效益进行评价,为灌区农田防护林建设提供依据。综合评价结果表明:小美旱杨防护林网的主要防护效益优于新疆杨防护林网。
In this paper, two kinds of P. albavarpyramidalis and P.popularis shelterbelts in the same age in Hetao Irrigation District were selected as the research object. The evaluation indexes were determined from the aspects of dynamic effect, thermal effect and hydrological effect, The decision-making method calculates the comprehensive effect measure value of each stage of two kinds of shelterbelts, evaluates the comprehensive benefit of the two kinds of shelterbelts and provides the basis for the construction of farmland shelterbelt in the irrigation area. The results of comprehensive evaluation showed that the main protective benefit of Ambergam shelterbelts was superior to that of the shelterbelts in Xinjiang.