| 毕节市燃煤电厂周边耕地中As污染特征研究 |
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| 引用本文： | 杨姗,张凯,燕蛟,刘红.毕节市燃煤电厂周边耕地中As污染特征研究[J].农业工程,2021,11(2):94-99. |
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| 作者姓名： | 杨姗 张凯 燕蛟 刘红 |
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| 作者单位： | 1.贵州工程应用技术学院，贵州 毕节551700 |
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| 基金项目： | 贵州省教育厅青年科技人才成长项目（项目编号：黔教合KY字［2020］159号） |
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| 摘 要： | 以毕节某热电厂、纳雍某火电厂和织金某火电厂3个燃煤电厂周边耕地为研究对象，对土壤污染状况进行评价。结果表明:不同土层的As含量变化趋势相近，电厂周边As含量随与电厂之间的距离变化无明显规律；3座电厂周边As污染程度为织金县某火电厂＞纳雍县某火电厂＞毕节市某热电厂，整体污染情况较轻；土壤As含量与土壤含水率的相关性较为显著，高As含量土壤不适合农作物生长。将单因子指数法和地积累指数法运用于毕节市燃煤电厂周边As的污染评价，对电厂周边耕地利用具有一定的指示作用。
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| 关 键 词： | 燃煤电厂 As 土壤 污染评价 |
| 收稿时间： | 2020/11/30 0:00:00 |
| 修稿时间： | 2020/11/30 0:00:00 |
Pollution Characteristics of As in Cultivated Land around Coal-Fired Power Plant of Bijie City |
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| Abstract: | Surrounding cultivated land of three coal-fired power plants，such as Bijie thermal power plant，Nayong thermal power plant and Zhijin thermal power plant，were studied，and soil pollution status was evaluated.Results showed that the As content of different soil layers were similar，and relative content of surrounding power plants was no more obvious than that of power plant.Pollution situation of surrounding As of the three power plants was Zhijin thermal power plant>Nayong thermal power plant>Bijie thermal power plant，and overall pollution was relatively light.Soil As content had a significant correlation with soil moisture content，and high As content soil was not suitable for crop growth.Single-factor index method and ground accumulation index method were applied to pollution evaluation of surrounding As of Bijie thermal power plant，which provided instructions for utilization of cultivated land around the plant. |
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