| 摘要: |
| ［目的］农户是农业土地利用最主要的决策单元，对耕地重金属累积起主导作用。通过对陕西省米脂县高渠乡典型村落耕地重金属污染的空间分异与影响因素研究，探讨黄土丘陵沟壑区不同类型农户耕地污染影响差异。［方法］选择性采集58个样品，通过单因子指数及内梅罗综合指数进行耕地重金属污染评价，运用普通克里金插值实现综合污染值空间可视化。采用多层次模型进行耕地重金属污染差异的机理研究。［结果］（1）典型村落耕地单因子污染指数的平均值大小顺序为：Pb
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| 关键词: 重金属污染农户视角多层次模型黄土丘陵沟壑区高渠乡 |
| DOI： |
| 分类号:X53 |
| 基金项目:国家自然科学基金项目“生态脆弱区土地利用功能变化及农户响应研究——以陕西省米脂县为例”（41671086）； 国家自然科学基金项目“基于生态系统服务供需流的绿洲城市景观过程模拟研究”（41871185） |
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| STUDY ON INFLUENCING FACTORS OF HEAVY METAL POLLUTION IN CULTIVATED LAND BASED ON FARMERS′ PERSPECTIVE*——A CASE STUDY OF GAOQU COMMUNTIY OF MIZHI COUNTY, SHAANXI PROVINCE |
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Zhao Yan1,2, Chen Hai1,2※, Liu Di1,2, Shi Qinqin1,2, Zhang Min1,2
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1. College of Urban and Environmental Science，Northwest University, Xi′an, Shaanxi 710127, China;2. Key Laboratory of Surface System and Environmental Carrying Capacity of Shaanxi Province, Xi′an, Shaanxi 710127, China
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| Abstract: |
| Farmers were the most important decision making unit of agricultural land use, and played a leading role in the accumulation of heavy metals in cultivated land. Through the study on the spatial differentiation and influencing factors of heavy metal pollution in typical villages in Gaoqu community, Shaanxi province, the differences of cultivated land pollution among different types of farmers in the loess hilly and gully region are discussed. The heavy metal pollution of cultivated land through single factor index and Nemerow comprehensive index were evaluated, and ordinary kriging interpolation was used to realize the spatial visualization of comprehensive pollution value, then multi level model was used to conduct a mechanism study on the difference of heavy metal pollution in cultivated land based on the selected 58 samples in the study area. The order of the average value of single factor pollution index of typical village cultivated land was: Pb
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| Key words: heavy metal pollution farmer perspective multi level model loess hilly and gully region Gaoqu community |
