Taking Yijinhuoluo mining in Erdos as an example , we studied the effects of five different land use patterns and reclamation of mining in different time on soil physical and chemical properties .The re-sults show that subsidence area abandoned cropland and near highways bare cropland content more sands than other land use types , land desertification phenomenon is obviously serious .Agricultural cropland has good quantity of soil particle-size fractions, water holding capacity , organic matter, TN, TP and TK un-der fertilization and other factors ’ influence .The content of AP and AK were decreased by 50%in agri-cultural land compared to nature grassland .Content of organic matter , AP and AK in the soil of the bare cropland near highways were consistently higher than the other four land-use types .Soil nutrient content of different restoration times were all low , which indicates that it is difficult to restore the soil mere use of natural methods .%以内蒙古伊金霍洛旗东部水蚀沟壑地带矿区为研究对象，分析5种不同土地利用方式以及矿区不同复垦年限对土壤理化性质的影响。结果表明，废弃农用地和公路附近裸露地沙粒含量高于其他利用方式，土壤沙质特征明显。受施肥等人为因素的影响，农用地在土壤粒级组成、持水性能、有机质和全N、全P、全K含量等方面都具有较好的特性，与原生景观草地相比，农用地中的有效P和速效K含量减少了50％。公路附近裸露地的有机质、有效P和速效K养分含量显著高于其他土地。不同复垦年限的煤矿复垦土地土壤养分含量都较低，表明单纯使用自然恢复的方法很难恢复土壤的性状。
展开▼
