| 基于土地质量地球化学调查成果的土壤地球化学分区 |
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| 引用本文： | 左健扬,赵柳青,方璐,房正荣.基于土地质量地球化学调查成果的土壤地球化学分区[J].干旱区资源与环境,2021,35(4):133-138. |
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| 作者姓名： | 左健扬 赵柳青 方璐 房正荣 |
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| 作者单位： | 宁夏回族自治区国土整治修复中心,银川750002;宁夏回族自治区自然资产核算中心,银川750002;宁夏回族自治区国土资源调查监测院,银川750002 |
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| 基金项目： | 宁夏自然科学基金项目(2020AAC03475)资助。 |
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| 摘 要： | 1:25万土地质量地球化学调查工作的开展,在特色土地资源开发、土壤污染防治、脱贫攻坚等方面做出了重要贡献。研究区地处六盘山集中连片特困地区,依据区域内2638件土壤样品的53项元素指标测试结果,利用因子分析方法划分了10个元素指标组合分区,结合区域地球化学特征分布及规律进行了分析和评价。研究区地球化学分区不仅受自然环境、成土母质等因素影响,还与人类农业活动有较大关系,尤其是清水河平原集中耕作区,N、Corg、C、Se等有益元素呈现低异常,建议进一步加强耕地质量监测。
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| 关 键 词： | 土地质量 地球化学调查 地球化学分区 |
Soil geochemical division based on land quality geochemical survey |
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| ZUO Jianyang,ZHAO Liuqing,FANG Lu,FANG Zhengrong.Soil geochemical division based on land quality geochemical survey[J].Journal of Arid Land Resources and Environment,2021,35(4):133-138. |
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| Authors: | ZUO Jianyang ZHAO Liuqing FANG Lu FANG Zhengrong |
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| Institution: | (Ningxia Territorial Management and Restoration Center,Yinchuan 750002;Ningxia Natural Assets Accounting Center,Yinchuan 750002;Ningxia Survey and Monitoring Institute of Land andResource,Yinchuan 750002,China) |
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| Abstract: | The 1:250000 land quality geochemical survey has made contributions to the development of characteristic land resources,prevention and control of soil pollution,and poverty alleviation.The study area is located in the contiguous poverty-stricken area of Liupan Mountain.Based on 53 element indexes obtained from 2638 soil samples,according to factor analysis,the area is divided into 10 element index combination zones.And combined with the distribution and regularity of regional geochemical characteristics,the analysis and evaluation are carried out.Geochemical zoning is not only affected by natural environment,the original material soil and other factors,but also related to human agricultural activities.Especially in the intensive farming area of Qingshui river,N,Corg,C,Se and other beneficial elements present low anomalies.It is suggested to strengthen the monitoring of cultivated land quality. |
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| Keywords: | land quality geochemical survey geochemical division |
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