福建林学院学报2012，Vol.32Issue(1)：70-75,6.
义马煤矿矸石山植被恢复土地适宜性评价
Land suitability evaluation of vegetation restoration of coal-gangue pile in Yima Area
摘要
Abstract
Land suitability evaluation is the premise and basis for vegetation restoration of coal-gangue pile. Using the principal component analysis method to fix on the weight of the indexes and weighted index summation method to calculate the soil integrated quality index (SQI) , the suitability for vegetation restoration in each site unit with different dumping years and under artificial interference or otherwise was studied in coal-gangue pile of Yima Area, Henan Province. In this paper 8 factors including soil Ph, soil thickness, organic matter, field water-holding capacity, steady infiltration rates, soil bulk density, soil total porosity and vegetation coverage were selected as evaluation indexes. The results indicated that: the vegetation restoration suitability of the unit with more dumping years was better than that with less dumping years; planting trees (such as Robinia pseudoacacia) could significantly accelerate the soil improvement process and the vegetation restoration suitability was superior to that in the coal-gangue pile under no artificial interference. Since plants were difficult to grow owing to the instability of slope, the vegetation restoration suitability was the worst. Thus measures should be taken to make the slope secure.关键词
适宜性评价/煤矸石山/植被恢复/土壤质量综合指数值Key words
land suitability evaluation/coal-gangue pile/vegetation restoration/soil integrated quality index (SQI)分类
资源环境引用本文复制引用
刘龙昌,宋蒙亚,徐国瑞,孟甫..义马煤矿矸石山植被恢复土地适宜性评价[J].福建林学院学报,2012,32(1):70-75,6.基金项目
河南科技大学科学研究基金资助项目(2007ZY025) （2007ZY025）
义煤集团煤矸石山生态恢复研究基金资助项目(2008B1202). （2008B1202）
