庐江矾矿区土壤理化特性研究
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摘要
为深入了解矿区废弃地土壤理化特性,探究其复垦困难的关键因素,以庐江矾矿为研究对象,对土壤理化性质进行测定。结果显示:矿区土壤为砂质壤土;含水量为12.09%,干旱等级为轻旱;土壤容重为1.39 g·cm~(-3);p H为4.20;有机质含量为0.59%,全氮为0.037%,有效磷和速效钾分别为7.66 mg·kg~(-1),55.06 mg·kg~(-1)。这表明矿区砂化明显,具有轻度干旱现象,土壤呈酸性、结构性差,有机质、全氮缺失严重,氮磷钾比例失调,养分极低。土壤理化性质之间相关性分析表明:土壤含水量与容重存在极显著的负相关性,有机质与p H、有效磷均存在显著的正相关性,与全氮存在极显著相关关系;有效磷与全氮也存在显著正相关性。
In order to understand the physicochemical properties of soil in mining waste land and explore the key factors of its reclamation difficulties, the physicochemical properties of the soil samples are researched,which are collected from alumite mine area in Lujiang. The results show that the soil in the mining area is sandy loam, the water content is 12.09% and the drought level is mild, the volume weight of soil is 1.39 g · cm-3,the p H value is 4.20, the organic matter content is 0.59%, the total nitrogen is 0.037%, the available phosphorus is 7.66 mg·kg-1, and the available potassium is 55.06 mg·kg-1.The phenomenon of soil is obvious, and mild drought appears at the same time. Soil is acidic and has bad structure. It lacks of organic matter and total nitrogen and the proportion of NPK in soil is disregulated, and the nutrient of soil is very low. The correlation about physical and chemical properties of soil is analyzed and we get that the soil moisture are negatively correlated with soil bulk density. Organic matter is evidently correlated to total nitrogen and negatively correlated with p H and available phosphate.Total nitrogen are very significant positive correlations with the content of available phosphorus.
In order to understand the physicochemical properties of soil in mining waste land and explore the key factors of its reclamation difficulties, the physicochemical properties of the soil samples are researched,which are collected from alumite mine area in Lujiang. The results show that the soil in the mining area is sandy loam, the water content is 12.09% and the drought level is mild, the volume weight of soil is 1.39 g · cm-3,the p H value is 4.20, the organic matter content is 0.59%, the total nitrogen is 0.037%, the available phosphorus is 7.66 mg·kg-1, and the available potassium is 55.06 mg·kg-1.The phenomenon of soil is obvious, and mild drought appears at the same time. Soil is acidic and has bad structure. It lacks of organic matter and total nitrogen and the proportion of NPK in soil is disregulated, and the nutrient of soil is very low. The correlation about physical and chemical properties of soil is analyzed and we get that the soil moisture are negatively correlated with soil bulk density. Organic matter is evidently correlated to total nitrogen and negatively correlated with p H and available phosphate.Total nitrogen are very significant positive correlations with the content of available phosphorus.
引文
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[3]范裕,周涛发,袁峰,等.庐枞盆地高硫化型浅成低温热液成矿系统:来自矾山明矾石矿床地质特征和硫同位素地球化学的证据[J].岩石学报,2010,26(12):3657-3666.
[4]宣之强.中国明矾石资源及其应用[J].化工矿产地质,1998(4):279-286.
[5]张寿稳.安徽庐枞地区高岭土资源及其开发利用[J].地质与勘探,2000(5):49-51.
[6]王少龙.浅谈安徽省大中型闭坑矿山环境地质问题[J].低碳世界,2013(22):121-122.
[7]全国农业技术推广服务中心.土壤分析技术规范[M].2版.北京:中国农业出版社,2006:11-33.
[8]李天杰,赵烨,张科利,等.土壤地理学[M].北京:高等教育出版社,2004:8.
[9]彭东海,侯晓龙,何宗明,等.金尾矿废弃地不同植被恢复模式对土壤理化性质的影响[J].水土保持学报,2015,29(6):137-142.
[10]张天义,田丽萍,潘存娥,等.不同配置农田防护林土壤理化性质的研究[J].新疆农业科学,2010,47(12):2410-2415.
[11]朱祥祖.土壤学[M].北京:农业出版社,1983:5-150.
[12]周瑞平.鄂尔多斯地区采煤塌陷对风沙土壤性质的影响[D].呼和浩特:内蒙古农业大学,2008.
[13]莫爱,周耀治,杨建军,等.山地煤矿开采对土壤理化性质的影响[J].水土保持学报,2015,29(1):86-89.