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作 者:林剑辉[1] 孙宇瑞[2] 孟繁佳[2] 蔡彩霞[2]
机构地区:[1]北京林业大学工学院,北京100083 [2]中国农业大学信息与电气工程学院,北京100083
出 处:《中国农学通报》2013年第32期225-229,共5页Chinese Agricultural Science Bulletin
基 金:北京林业大学新教师科研启动基金(BLX2008011);国家自然科学基金(11202031);科技部国际科技合作项目"土壤水资源精细化管理与高效利用关键传感技术"(2010DFA34670)
摘 要:在矿区土地复垦工作中,如何获取合适的土壤特征指标对于提高复垦质量以及复垦效果评估都有着重要的意义。以阜新海州露天矿排土场复垦工程为研究对象,应用新型土壤圆锥指数仪对复垦土壤压实度进行测量,结合GPS信息、GIS技术及统计学方法对数据进行分析,研究土壤圆锥指数方法在评估矿区土壤复垦效果中应用的可行性。通过对排土场覆土复垦区7个地块264个采样点的测量试验,数据分析结果表明,覆土工程5年后,89%以上测量区域的土层厚度达到北方常见农作物生长需求。研究表明,土壤圆锥指数作为评估矿区土地复垦工程一项参数指标具有较强的可行性,但具有一定的片面性,需与其他理化参数相结合,才能更全面地评价矿区复垦效果。It is very important for mining field rehabilitation to acquire the suitable indices. In order to study the feasibility of cone index as a new index to evaluate the rehabilitation of mining field, an improved soil penetrometer was used to measure the soil compaction of rehabilitation field in Fuxin Haizhou strip mine dump. Totally 264 sampling points were measured in 7 plots of covering soil area. All of experimental data were processed by GIS and statistical methods combined with GPS information. The results showed that: the more than 50% measured points' thickness of covering soil was greater than demand of soil covering project in the resent 4 years. It meant that coal gangue was decomposing slowly. The experiment also proved the feasibility of using soil cone index to evaluate the rehabilitation of mining field.
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