摘要
煤矸石山植被恢复适宜性评价是对煤矸石山植被恢复适宜程度进行的评价,同时是开展煤矸石山植被恢复的工作基础。以河南平顶山一矿煤矸石山为评价对象,将不同海拔高度、不同光照条件下的矸石山划分为6个单元,因地制宜地选择了土层厚度、田间持水量等7个评价因子,应用主成分分析法对研究对象进行植被恢复适宜性评价。评价结果表明:一矿煤矸石山植被恢复的主要限制因子为土层厚度、田间持水量和有机质含量,各评价单元适宜性得分分别为:A1区域为2.68、A2区域为1.84、B1区域为2.97、B2区域为1.98、C1区域为3.11、C2区域为2.97,由此得出海拔低的区域比海拔高的区域更适宜植被恢复,矸石山阴面区域比阳面区域更适宜植被修复的结论。
The suitability assessment for the gangue mountain vegetation restoration is an appraisal to assess the suitable degree of the gangue mountain vegetation resilience.The suitability appraisal has been developed to be the foundation for study on the restoration of the gangue mountain vegetation.The study site is located in a gangue mountain of Pingdingshan,He＇nan Province,which is divided into six units according to the altitudes and the solar irradiance.Seven assessment factors such as depth of soil layer,water holding capacity of soil were chosen according to the local conditions.The recovery of the vegetation was evaluated by using the principal component analysis.The results show that the main restrictions for vegetation restoration are the depth of the soil,water holding capacity of soil and the content of organic matter.The suitability scores for different regions were 2.68 for unit A1,1.84 for unit A2,2.97 for unit B1,1.98 for unit B2,3.11 for C1,2.97 for unit C2.It can be seen that the regions with lower altitudes are much more suitable for the restoration of the vegetation compared with the regions with higher altitudes.It can also be found out that the shady side of hillock is much more suitable for the restoration of the vegetation compared to the southern aspects of the regions.
出处
《水土保持研究》
CSCD
北大核心
2011年第6期264-267,286,共5页
Research of Soil and Water Conservation
基金
西北"战略中的生态建设问题研究"(2009A333)
关键词
煤矸石山
植被恢复
适宜性
评价
gangue mountain
vegetation restoration
suitability
assessment
