论文部分内容阅读
在第二松花江流域选取黑土层厚度、土壤侵蚀、土壤理化性状、坡耕地治理共4类因子作为坡耕地生态环境诊断的初选指标,构建了包含10个评价指标的坡耕地生态环境诊断体系,并运用多目标线性加权函数法对坡耕地生态环境进行了健康诊断与评价。评价结果表明,第二松花江流域坡耕地生态环境系统综合健康诊断指数为18.10,健康水平较差,等级为劣,应当加强水土保持和生态建设力度。
In the second Songhua River basin, four factors including black soil layer thickness, soil erosion, soil physical and chemical properties and sloping farmland management were selected as primary indicators for ecological diagnosis of sloping farmland, and a diagnostic system for ecological environment of sloping farmland with ten evaluation indexes , And used the multi-objective linear weight function method to diagnose and evaluate the ecological environment of sloping arable land. The evaluation results show that the integrated health diagnosis index of ecological system of sloping farmland in the second Songhua River Basin is 18.10, the health level is poor, and the grade is poor, and soil and water conservation and ecological construction should be strengthened.