| 宁夏固原地区土壤地球化学特征和养分状况评价 |
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| 引用本文： | 左健扬,方璐,赵柳青,穆小虎.宁夏固原地区土壤地球化学特征和养分状况评价[J].地质与资源,2022,31(4):523-529. |
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| 作者姓名： | 左健扬 方璐 赵柳青 穆小虎 |
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| 作者单位： | 1. 宁夏回族自治区国土整治修复中心, 宁夏 银川 750002;2. 宁夏回族自治区国土资源调查监测院, 宁夏 银川 750002;3. 宁夏回族自治区自然资产核算中心, 宁夏 银川 75002 |
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| 基金项目： | 宁夏回族自治区自然科学基金项目"基于土壤地球化学特征的农业种植区划研究"(2020AAC03475). |
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| 摘 要： | 基于宁夏固原地区1:25万土地质量地球化学调查，利用2 638件土壤样品的53项元素指标测试分析成果，采用统计分析和离群数据迭代剔除，得到土壤元素指标地球化学特征参数.依据土壤地球化学背景值，对N、P、K、有机质等19种土壤养分元素指标丰缺状况进行分析评价，依据养分含量的缺乏、适中和丰富状况进行元素指标分类，发现研究区土壤中N、Ge、Se、有机质较为缺乏，CaO、MgO含量丰富，为合理指导耕地资源可持续开发与利用提供了基础依据.
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| 关 键 词： | 土地质量 地球化学特征 土壤养分 宁夏 |
| 收稿时间： | 2021-08-17 |
SOIL GEOCHEMISTRY AND NUTRIENT EVALUATION IN GUYUAN CITY OF NINGXIA |
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| ZUO Jian-yang,FANG Lu,ZHAO Liu-qing,MU Xiao-hu.SOIL GEOCHEMISTRY AND NUTRIENT EVALUATION IN GUYUAN CITY OF NINGXIA[J].Geology and Resources,2022,31(4):523-529. |
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| Authors: | ZUO Jian-yang FANG Lu ZHAO Liu-qing MU Xiao-hu |
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| Institution: | 1. Ningxia Land Management and Restoration Center, Yinchuan 750002, China;2. Ningxia Land Resources Survey and Monitoring Institute, Yinchuan 750002, China;3. Ningxia Natural Assets Accounting Center, Yinchuan 750002, China |
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| Abstract: | The geochemical characteristic parameters of soil element indexes are obtained through statistic analysis and iterative elimination of outlier data based on the 1:250 000 land quality geochemical survey and test analysis results of 53 element indexes of 2 638 soil samples in Guyuan area of Ningxia. The abundance and deficiency of 19 soil nutrient element indexes such as N, P, K and organic matters are analyzed and evaluated according to the background values of soil geochemistry, and the element indexes are then classified in terms of the nutrient status. It is found that the contents of N, Ge, Se and organic matters in the soil are relatively deficient, while CaO and MgO are abundant, which provides basis for rationally guiding sustainable development and utilization of cultivated land resources. |
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| Keywords: | land quality geochemical characteristic soil nutrient Ningxia Hui Autonomous Region |
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