| 长江中下游地区湿地开垦及土壤有机碳含量变化 |
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| 引用本文： | 李典友,潘根兴. 长江中下游地区湿地开垦及土壤有机碳含量变化[J]. 湿地科学, 2009, 7(2): 187-190 |
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| 作者姓名： | 李典友 潘根兴 |
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| 作者单位： | 1. 南京农业大学农业资源与生态环境研究所,江苏,南京,210095;皖西学院城市建设与环境系,安徽,六安,237012
2. 南京农业大学农业资源与生态环境研究所,江苏,南京,210095 |
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| 基金项目： | 中国科学院湖泊沉积重点开放实验室基金项目和国家自然科学基金项目 |
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| 摘 要： | 概述了历史时期至今,尤其是20世纪下半叶50 a来长江中下游地区湿地的开垦状况;总结了研究区湿地土壤及其开垦为农田后土壤有机碳含量的变化特征.长江中下游地区湿地分布广, 存在着湿地开垦强度大、土壤碳密度较低和土壤有机碳损失严重等土壤碳库变化问题.与原湿地土壤相比,湿地被开垦为农田后,土壤有机碳含量总体上在降低,而且随着湿地开发利用年限的增加,其土壤有机碳含量减少的幅度也在增加.
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| 关 键 词： | 湿地 开垦 土壤有机碳 长江中下游地区 |
Cultivation of Wetlands and Changes of Soil Organic Carbon Content in the Middle and Lower Reaches of Yangtze River |
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| LI Dian-You,PAN Gen-Xing. Cultivation of Wetlands and Changes of Soil Organic Carbon Content in the Middle and Lower Reaches of Yangtze River[J]. Wetland Science, 2009, 7(2): 187-190 |
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| Authors: | LI Dian-You PAN Gen-Xing |
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| Affiliation: | 1.Institute of Resource;Ecosystem and Environment of Agriculture;Nanjing Agricultural University;Nanjing 210095;Jiangsu;P.R.China;2.Department of Urban Construction and Environment Science;West Anhui University;Lu'an 237012;Anhui;P.R.China |
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| Abstract: | This paper overviewed the cultivation of wetlands in the middle and lower reaches of Yangtze River,special emphasized on the cultivation over the last 5 decades.Through a comparative summary of the changes of soil organic carbon(SOC)content from literature,dynamics of SOC under different land use patterns of wetlands cultivated were analyzed from different geographic regions in study area.Great extent of cultivation,low SOC storage and significant SOC loss tended to be a serious problem for the wetlands in ... |
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| Keywords: | wetland cultivation soil organic carbon the middle and lower reaches of Yangtze River |
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