| 喀斯特石漠化综合治理区表层土壤有机碳密度特征及区域差异 |
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| 引用本文： | 周文龙,熊康宁,龙健,李晋,任远,陈伟杰,贺祥.喀斯特石漠化综合治理区表层土壤有机碳密度特征及区域差异[J].土壤通报,2011(5):1131-1137. |
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| 作者姓名： | 周文龙 熊康宁 龙健 李晋 任远 陈伟杰 贺祥 |
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| 作者单位： | 贵州师范大学中国南方喀斯特研究院;贵州师范大学贵州省喀斯特山地生态环境国家重点实验室培育基地;贵州师范大学贵州省山地环境信息系统与生态环境保护重点实验室;凯里学院; |
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| 基金项目： | 国家十二五科技支撑计划重大课题“喀斯特高原峡谷石漠化综合治理技术与示范”(2011BAC09B01); 国家自然科学基金(40971160); 贵州教育厅2009年自然科学科研项目(黔教科20090083)联合资助 |
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| 摘 要： | 以中国南方喀斯特地区具有代表性的贵州为例,选取3个典型喀斯特石漠化综合治理示范区,以划分出的4条核心小流域为监测单元,对各示范区内及示范区之间不同等级石漠化样地表层土壤有机碳密度特征进行比较。结果表明:各示范区之间表层土壤有机碳密度变异性较大,表现为红枫湖示范区(6.12 kg m-2)>鸭池示范区(5.21 kg m-2)>花江示范区(2.80 kg m-2);不同等级石漠化样地之间土壤有机碳密度整体表现为无明显、潜在石漠化样地大于中、强度石漠化样地;岩石裸露率是影响喀斯特地区表层土壤碳密度的重要影响因子之一,特别对于中、强度石漠化区;地貌、气温和不同工程措施也在一定程度上影响到土壤有机碳密度特征。喀斯特石漠化综合治理具备巨大的固碳减排效应,采取有效措施增加有机碳蓄积量是今后石漠化综合治理的关键。
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| 关 键 词： | 土壤有机碳 密度 碳储量 喀斯特石漠化 |
Organic Carbon Density Features and Regional Variation of the Topsoil in Karst Demonstration Areas of Rocky Desertification Integrated Rehabilitation |
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| ZHOU Wen-long ,XIONG Kang-ning ,LONG Jian ,LI Jin ,REN Yuan ,CHEN Wei-jie ,HE Xiang.Organic Carbon Density Features and Regional Variation of the Topsoil in Karst Demonstration Areas of Rocky Desertification Integrated Rehabilitation[J].Chinese Journal of Soil Science,2011(5):1131-1137. |
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| Authors: | ZHOU Wen-long XIONG Kang-ning LONG Jian LI Jin REN Yuan CHEN Wei-jie HE Xiang |
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| Institution: | ZHOU Wen-long 1,2,XIONG Kang-ning 1,LONG Jian 2,3,LI Jin 1,REN Yuan 1,CHEN Wei-jie 1,HE Xiang 4(1.Institute of South China Karst,Guizhou Normal University,Guiyang Guizhou 550001,China,2.The State Key Laboratory Incubation Base for Karst Mountain Ecology Environment of Guizhou Province,3.Guizhou Provincial Key Laboratory for Information System of Mountainous Areas and Protection of Ecological Environment,4.Kaili Unive... |
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| Abstract: | Guizhou Province was taken as an example for its symbolic representation of Karst landform.And three typical integrated rehabilitation demonstration areas of karst rocky desertification were chosen and four core small drainages were regarded as monitoring units.The comparisons of organic carbon density had been carried out in and between karst pilots of various degrees in demonstration areas.The result showed that there was a great gap of organic carbon density in topsoil of different demonstration areas an... |
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| Keywords: | Soil Organic carbon Density Carbon storage Karst rocky desertification |
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