安徽南陵地区土壤养分丰缺状况研究.docx
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1、安徽南陵地区土壤养分丰缺状况研究吴正梁红霞陈富荣李明辉李杨刘超Summary以安徽南陵地区土壤大量养分元素为主要研究对象,通过对区内土壤样品的采集与测试,统计分析土壤氮、碱解氮、磷、有效磷、氧化钾、速效钾等的含量特征,并对其分布特征加以研究,最终开展研究区土壤养分地球化学综合等级评价。结果表明,土壤氮和碱解氮在研究区内以丰富为主,且两者相关性较好,相关系数高达0.8可能与土地利用类型有关;磷及有效磷在区内主要表现为较缺乏-缺乏,两者相关性较差,可能与磷在土壤中的存在形式及人为活动有关;氧化钾在区内分布主要表现为较丰富-中等-较缺乏3种,呈正态分布,孤峰河两侧分布差异明显,速效钾在区内零星分布,
2、特征不明显;区内土壤养分地球化学综合评价结果以三级(中等)土壤为主,占研究区总面积的58. 45%OKey 土壤大量养分元素;含量特征;分布特征;地球化学;安徽南陵地区S-158;X-825 A0517-6611 (2021) 22-0092-05doi: 10. 3969/j. issn. 0517-6611. 2021. 22. 021开放科学(资源服务)标识码(0SID):Study on Soil Nutrient Abundance and Deficiency in Nanling Area ofAnhui ProvinceWU Zheng, LIANG Hong-xia, CHE
3、N Fu-rong et al (Geological Survey ofAnhui Province (Anhui Institute of Geological Sciences) , Hefei,Anhui 230001)Abstract Taking a large number of soil nutrient elements in Nanlingarea of Anhui Province as the main research object, through thecollection and testing of soil samples in the area, the
4、contentcharacteristics of soil nitrogen, alkali-hydrolyzable nitrogen,phosphorus, available phosphorus, potassium oxide and availablepotassium were statistically analyzed, and the distributioncharacteristics were studied, and the comprehensive grade evaluationof soil nutrients and geochemistry in th
5、e study area was finallycarried out.The results showed that soil nitrogen and alkali-hydrolyzable nitrogen were mainly abundant in the study area, andthe correlation between the two was good, the correlationcoefficient was as high as 0. 8 which might be related to the type ofland use. Phosphorus and
6、 available phosphorus in the region weremainly relatively deficient-deficient, and the correlation betweenthe two was poor, which might be related to the form of phosphorusin the soil and human activities. The distribution of potassium oxidein the area was mainly characterized by richer-medium-less
7、threespecies, showing a normal distribution.The distribution of the twosides of the Gufeng River was obviously different, and the availablepotassium was scattered in the area, and the characteristics werenot obvious. The comprehensive evaluation results of soil nutrientsand geochemistry in the area
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- 安徽 南陵 地区 土壤 养分 状况 研究
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