摘要
攀枝花矿山排土场具有边坡高陡、土壤抗蚀、抗冲能力差的特点,具备发生剧烈水土流失的地形条件和土壤条件,土壤侵蚀难以防治,加之干热河谷降雨集中,水土流失较为严重。本文综述了其水土流失特征、水土流失防治现状和目前采取的生态恢复对策,提出应在排土场不同部位采取不同的生态恢复模式,并探明其"稳坡、固土、保水、拦沙"效应,评价其生态效益及经济效益,从而为干热河谷区矿山排土场的生态治理技术体系构建奠定一定的理论基础。
Soil erosion in the mineland waste dump of Panzhihua city is very serious due to poor soil anti-erodibility and an- ti-scourability, steep slopes and concentrated rainfall events in the dry-hot valley region. In other words, the prevention of soil erosion is very difficult due to the special soil and landform characteristics in the mineland waste dump of Panzhihua city. The characteristics and control measures of Soil and water loss in the mineland waste dump of Panzhihua city were studied in this paper, as well as the response studies of ecological restoration were reviewed. Meanwhile, different ecological restoration measures should be applied to different slope positions of mineland waste dump, and effects of ecological restoration meas- ures on slope consolidation, soil maintenance,water conservation and sediment trapping for mineland waste dump should be considered, The ecological profits and economic returns of rehabilitation for mineland waste dump are also pressing needs to be evaluated, and thus the ecological restoration measures of mineland waste dump of Panzhihua city could be properly con- structed.
出处
《世界科技研究与发展》
CSCD
2015年第4期457-460,共4页
World Sci-Tech R&D
基金
国家自然科学基金(41401313)
四川省应用基础研究计划项目(2014JY0067)资助
关键词
攀枝花
矿山排土场
土壤侵蚀
水土保持
生态恢复
治理模式
Panzhihua city
mineland waste dump
soil erosion
soit and water conservation
ecological restoration
govern-ance model
