| 邱孟龙,王琦,陈俊坚,杨国义,李芳柏,刘黎明.东莞市耕地环境质量的压力-状态-响应分析与评价[J].农业环境科学学报,2015,34(3):524-531. |
| 东莞市耕地环境质量的压力-状态-响应分析与评价 |
| Analysis and Assessment of Environmental Quality of Farmland in Dongguan City Based on “Press-State- Response” Framework |
| 投稿时间：2014-10-20 |
| DOI：10.11654/jaes.2015.03.015 |
| 中文关键词: 耕地环境质量 “压力-状态-响应”框架 协调度 评价模型 东莞市 |
| 英文关键词: farmland environmental quality “Press-State-Response” framework coordination degree evaluation model Dongguan City |
| 基金项目:国家高技术研究发展计划(863计划)(2013AA06A209);广东省科技计划项目(2012A030700003) |
| 作者 | 单位 | E-mail | | 邱孟龙 | 中国农业大学资源与环境学院, 北京 100193 | | | 王琦 | 广东省生态环境与土壤研究所, 广东省农业环境综合治理重点实验室, 广州 510650 | | | 陈俊坚 | 广东省生态环境与土壤研究所, 广东省农业环境综合治理重点实验室, 广州 510650 | | | 杨国义 | 广东省生态环境与土壤研究所, 广东省农业环境综合治理重点实验室, 广州 510650 | | | 李芳柏 | 广东省生态环境与土壤研究所, 广东省农业环境综合治理重点实验室, 广州 510650 | | | 刘黎明 | 中国农业大学资源与环境学院, 北京 100193 | liulm@cau.edu.cn |
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| 中文摘要: |
| 基于“压力-状态-响应”模型建立了耕地环境质量评价框架及其指标体系。以东莞市为研究样区,采集182个耕地土壤样品,测定其重金属含量,结合东莞统计年鉴中的社会经济数据,对东莞市耕地环境质量进行评价,并通过协调度模型对其稳定性进行分析。结果表明:东莞市28.2%的耕地处于良好和较好水平,主要分布在北部河网平原区,该区作为供水工程水源地,环境受到严格保护;56.1%的耕地处于警戒水平,处于较差水平的耕地占总面积的15.7%,没有耕地处于极差水平。主要影响因素为经济发展和工业“三废”排放压力、耕地自然性状及其耕作管理状态、农药化肥过量施用等不合理的农户响应措施。压力、状态、响应指数协调度较低的乡镇有南城、望牛墩、沙田、长安,其耕地环境质量不稳定,是耕地环境质量管控的重点区域。 |
| 英文摘要: |
| A framework and indicator system of environmental quality assessment of farmland were constructed based on the“Press-State-Response”(PSR) model. Taking Dongguan city as a case study, “Press-State-Response” model was successfully developed using 182 farmland soil samples and socioeconomic data obtained from Dongguan statistical yearbook. The indicator system was thus applied to assess the environmental quality of farmland and indexes of pressure, state and response were also analyzed. Environmental quality of farmland was divided into 5 grades:superior, good, warning, low and poor. Coordination degree was used to analyze the stability of environmental quality of farmland. Results showed that 28.2% of total farmland in Dongguan was superior or good, which is mainly distributed in river network area in the north of Dongguan. Fifty six point one percent(56.1%) was warning and 15.7% low. The pressure from economic development and industrial waste discharge, farmland natural characteristics, and unreasonable agricultural practices and managements were the major factors influencing farmland environmental quality. Low coordination degree of each PSR subsystem was found in Nancheng,Wangniudun, Shatian and Changan township, indicating unstable farmland environmental quality in these townships. The present study would be useful for a targeted soil protection plan and sustainable use of land resources in Dongguan city. |
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