| 湖南双季稻区耕作模式的环境影响评价 |
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| 引用本文： | 黄坚雄,隋鹏,李媛媛,高旺盛,陈源泉,杨光立,肖小平,汤文光,唐海明.湖南双季稻区耕作模式的环境影响评价[J].中国人口．资源与环境,2011,21(11). |
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| 作者姓名： | 黄坚雄 隋鹏 李媛媛 高旺盛 陈源泉 杨光立 肖小平 汤文光 唐海明 |
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| 作者单位： | 1. 中国农业大学循环农业研究中心,北京,100193
2. 湖南省土壤肥料研究所,湖南长沙,410125 |
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| 基金项目： | “十一五”国家科技支撑计划重点项目 |
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| 摘 要： | 以湖南双季稻区双季稻-马铃薯(CT1)、双季稻-黑麦草(CT2)、双季稻-紫云英(CT3)、双季稻-油菜(CT4)、双季稻双免栽培(CT5)5种保护性耕作模式为例,应用生命周期评价方法,从单位面积投入、单位面积产量、单位经济效益的环境影响三个角度评价不同保护性耕作模式的环境潜在影响.结果表明:从单位面积物质投入的角度评价结果显示,CT3模式的潜在环境影响综合指数较对照模式(双季稻-冬闲,CK)低4.72％,而其他模式则比CK高出11.95％-45.20％,平均增加了29.02％；从单位面积产量的角度评价结果显示,CT5模式的潜在环境影响综合指数比CK高34.55％,两其他模式则比CK低1.57-45.93％,平均降低24.29％;从单位经济效益的角度评价结果显示,CT5模式的潜在环境影响综合指数比CK高23.93％,而其他模式则比CK低29.07-49.06％,平均增加了24.88％.综合考虑,与CK对比,CT3和CT4模式对环境的潜在影响较小,CT2居中,CT5和CT1模式则较大.
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| 关 键 词： | 湖南省 双季稻 保护性耕作 生命周期评价 环境影响 |
Assessment of Environmental Impact on Different Conservation Tillage Patterns in Double-crop Rice Area in Hunan Province |
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| HUANG Jian-xiong,SUI Peng,LI Yuan-yuan,GAO Wang-sheng,CHEN Yuan-quan,YANG Guang-li,XIAO Xiao-ping,TANG Wert-guang,TANG Hai-ming.Assessment of Environmental Impact on Different Conservation Tillage Patterns in Double-crop Rice Area in Hunan Province[J].China Polulation.Resources and Environment,2011,21(11). |
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| Authors: | HUANG Jian-xiong SUI Peng LI Yuan-yuan GAO Wang-sheng CHEN Yuan-quan YANG Guang-li XIAO Xiao-ping TANG Wert-guang TANG Hai-ming |
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| Institution: | HUANG Jian-xiong1 SUI Peng1 LI Yuan-yuan1 GAO Wang-sheng1 CHEN Yuan-quan1 YANG Guang-li2 XIAO Xiao-ping2 TANG Wen-guang2 TANG Hai-ming2 (1.Circular Agriculture Research Center,College of Agriculture and Biotechnology,China Agriculture University,Beijing 100193,China,2.Hunan Soil and Fertilizer Institute,Changsha Hunan 410125,China) |
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| Abstract: | This paper focused on five conservation tillage patterns(double-crop rice-potato(CT1),double-crop rice-ryegrass(CT2),double-crop rice-Chinese milk vetch(CT3),double-crop rice-rape(CT4) and double-crop rice with no-tillage(CT5)) applied in double-crop rice regions in Hunan Province and with double-crop rice with winter fallow as the contrast.Life cycle assessment in terms of input,production and economic benefit was used to synthetically assess the potential environment impact of the five conservation tillag... |
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| Keywords: | Hunan Province double-crop Rice conservation tillage life cycle assessment environmental impact |
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