摘要
通过对采煤塌陷区不同用途土壤的有机质、pH、钙、镁、氮、磷、钾、速效钾含量进行的分析研究,探讨了塌陷区复垦地的肥力状况,为塌陷区复垦土地农业利用提供了技术参考和理论依据。结果表明:经过一定复垦作用后,土壤肥力有所上升,但仍然达不到土壤质量标准,采煤塌陷复垦区的有机质含量严重缺少,氮极缺,磷、速效钾、钾含量丰富,土壤中的钙镁含量经过复垦后都有一定程度的改善,采煤塌陷区土壤受污染比较严重,在复垦过程中应注意增施有机肥和氮肥。我们也不要盲目的复垦,在复垦过程中要考虑到经济效益、社会效益、环境效益三者的结合。
Though study the coal mining subsidence area＇s soil physical and chemical properties of soil nutrients（organic matter, nitrogen, phosphorus and potassium） and major elements （ nitrogen, phosphorus, potassium） content analysis of samples. In- quire into the fertility status and changes of subsidence area, provide technical standards and a basis for agricultural use of the land reclamation area. The result indicated：After a certain reclamation, the soil fertility increased, but still less than the soil quality standards. Reclamation of soil generally showed a serious lack of organic matters and total nitrogen, content of the k k - wide and total phosphorus is rich. Soil content of calcium and magnesium have a certain degree improved after been reclaimed, the soil of coal mining subsidence area was pollufioned serious. We must increase the content of organic matter and total nitrogen when we plant cultivation. We do not want the blind reclamation, in the reclamation process should take into account the economic, social and environmental benefits of combination of all three.
出处
《环境科学与管理》
CAS
2011年第2期133-137,共5页
Environmental Science and Management
关键词
淮北
采煤塌陷区
复垦区
土壤
评价
Huaibei
coal mining area
reclamation district
soil
evaluate
