南京林业大学学报（自然科学版）Issue(z1)：99-104,6.DOI:10.3969/j.issn.1000-2006.2014.S1.020
煤矸石山植被自然恢复规律及其环境影响
Effects of soil properties on vegetation restoration in coal-gangue pile
摘要
Abstract
Waste coal-gangue piles not only occupied and destroyed large fields, but also brought about a series of prob-lems of environment. So it is significant to do the research on restoring vegetation of coal-gangue pile in for local environ-ment. The naturally restored vegetation status were investigated by traditional plot-survey, and soil chemicals and physical properties were analyzed by using standard methodology. The natural vegetation patterns along the environmental gradient and their relationships with ecological factors were analyzed by TWINSPAN, DCA and DCCA. The results showed that the coal-gangue piles could be divided into three groups according to community ordination:the 36° slope of the coal-gangue pile that was discarded for 35 years; the coal-gangue pile was discarded for 30 or 35 years; the coal-gangue pile was discarded for 45 or 55 years and Robinia pseudoacacia forest which was discarded for 20 years. The re-sults of DCA and TWINSPAN for vegetation plots and soil properties were similar. The axes of DCA and DCCA ordina-tion diagram indicated that the variation of vegetation in coal-gangue pile was influenced by physical properties and soil chemicals, such as cation exchange capacity, bulk density and nutrient. Planting trees ( such as R. pseudoacacia) could significantly accelerate the natural recovery of vegetation waste dump and soil improvement process.The results also sug-gest that the improvement of soil chemicals and physical properties was contributed to natural vegetation recovery. Since natural plants are difficult to grow owing to the instability of slope, measures should be taken to make the slope secure, or along with engineering combined with planting some drought-resistant, barrenness-resistant and deep-rooted plants to speed up ecological restoration of the slope.关键词
煤矸石山/植被恢复/人工干预/TWINSPAN/DCA/DCCAKey words
coal-gangue pile/vegetation restoration/artificial interference/TWINSPAN/DCA/DCCA分类
农业科技引用本文复制引用
刘龙昌,贾娟,徐国瑞,孟甫..煤矸石山植被自然恢复规律及其环境影响[J].南京林业大学学报（自然科学版）,2014,(z1):99-104,6.基金项目
义煤集团矸石山生态恢复研究项目（2008B1202）；河南科技大学科学研究基金项目 （）
