CUI Lunan,WANG Ning,LI Yucheng,et al.Comparison of Soil Physical and Chemical Properties and Soil Enzyme Activities in Different Types of Subsidence in Huainan Mining Subsidence Area[J].Research of Soil and Water Conservation,2016,23(05):90-94.
淮南煤矿塌陷区不同塌陷类型土壤理化性质及其酶活性比较
- Title:
- Comparison of Soil Physical and Chemical Properties and Soil Enzyme Activities in Different Types of Subsidence in Huainan Mining Subsidence Area
- 分类号:
- S153.6;S154.2
- 摘要:
- 采集淮南煤矿塌陷区3种塌陷类型——非稳沉区、稳沉区和修复区，分析了其各层土壤的理化性质及酶活性，综合评价了3种不同塌陷类型土壤生态肥力。结果表明：塌陷区在由非稳沉区变为稳沉区的过程中，土壤的物理性能、土壤养分、酶活性总体呈下降趋势；以土壤理化性质和酶活性权重计算土壤综合肥力指标值（IFI）和土壤酶指数（ISE），结果均显示IFI与ISE值非稳沉区最高，修复区较稳沉区有所提高，土壤生物学肥力具有随土壤层次深度增加而下降的变化特点；脲酶和蔗糖酶与土壤各理化性质均呈现极显著相关性，表明脲酶和蔗糖酶可以作为评估煤矿塌陷区土壤肥力变化的有效性指标。
- Abstract:
- Three types of subsidence from coal mine subsidence in Huainan City were sellected for evaluation, including unstable subsidence area, stable subsidence area and restoration area. The soil physical chemical properties and soil enzyme of the soil layers were analyzed. The results showed that the soil physical properties, the soil nutrient and the soil enzyme decreased during the process of the change of unstable subsidence area into stable subsidence area. It was found that the unstable subsidence area had the highest integrated fertility index (IFI) and soil enzyme index values (ISE) and the integrated fertility index and soil enzymes index values of the restoration area was higher than the stable subsidence area. The soil biological fertility decreased with the increase of soil depth. Urease and invertase were highly obviously correlated with soil physical and chemical properties, suggesting that urease and invertase could be used as feasible indicators to assess change of soil nutrients in coal mining subsidence area.
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备注/Memo
收稿日期:2015-10-22;改回日期:2015-11-08。
基金项目:十二五国家科技支撑计划支撑项目（2012BAC10B02）；国家自然科学基金（41373108）；国家自然科学基金（41172121）；安徽省自然科学基金（1208085ME66）；安徽省教育厅重点资助项目（KJ2012A022）；煤矿生态环境保护国家工程实验室科技攻关项目（HKKY-JT-JS2012）；安大博士启动基金（12333190121）
作者简介:崔鲁楠(1990-),男,山东威海人,硕士研究生,研究方向为矿区土壤修复。E-mail:cln199003@163.com
通讯作者:王宁(1971-),男,安徽安庆人,副教授,博士,主要从事环境化学研究。E-mail:ningwang0001@163.com