废弃采石场人工生态恢复限制性因子评价研究

废弃采石场人工生态恢复是当今研究的热点问题之一,研究其限制性因子是人工生态恢复的前提和基础.本文论述了废弃采石场人工生态恢复限制性因子选择的原则,并在此基础上,建立了废弃采石场人工生态恢复限制性因子综合评价指标体系,采用AHP法(层次分析法)进行综合评价.本文还详细介绍了AHP法(层次分析法)评价废弃采石场生态恢复限制性因子的基本原理和方法步骤,从而计算各指标的权重.结果表明:废弃采石场生态治理影响最大的因子,首先是土壤有效深度,其次为土壤有机质,然后依次为坡度、年降雨量、土壤质地、土壤水分含量、地表破坏程度、土壤硬度、灌溉条件、改造难易程度和土壤pH值.

Study on evaluation of limiting factors in artificial vegetation restoration of abandoned quarry

The fundamental principle of limiting factors in artificial vegetation restoration of abandoned quarry was discussed in this paper. Comprehensive assessment index system in artificial vegetation restoration of abandoned quarry is set up. With the help of Analytical Hierarchy Process (AHP), a comprehensive assessment artificial vegetation restoration of abandoned quarry has been made.The fundamental theory and method for comprehensive assessment of limiting factors in ecological restoration of abandoned quarry, using the Analytical Hierarchy Process (AHP) was introduced. The weight of each index is calculated by AHP. The results show that the most important species of artificial vegetation restoration is soil effectual depth. And then is soil organism. Other species ordinal is gradient, annual rainfall, soil quality, soil moisture, soil destroy extent, and soil hardness, irrigational condition, reclaim difficulty, soil pH.