| 不同植被对高寒草原生态系统土壤有机碳组成和水稳性团聚体含量的影响 |
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| 引用本文： | 王建林,王忠红,张宪洲,欧阳华,常天军,李鹏,沈振西,钟志明.不同植被对高寒草原生态系统土壤有机碳组成和水稳性团聚体含量的影响[J].草地学报,2010,18(6):749-757. |
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| 作者姓名： | 王建林 王忠红 张宪洲 欧阳华 常天军 李鹏 沈振西 钟志明 |
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| 作者单位： | 西藏农牧学院植物科学技术系,西藏,林芝,860000;中国科学院地理科学与资源研究所,北京,100101 |
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| 基金项目： | 国家自然科学基金项目(41061008)资助 |
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| 摘 要： | 为了揭示不同植被对青藏高原高寒草原生态系统土壤有机碳组成和水稳性团聚体含量的影响,于2007年7-8月,采用实测方法,对土壤中总有机碳(TOC)、焦磷酸钠提取有机碳(SPPC)、水解碳水化合物(HDC)、热水提取碳水化合物(HWC)及水稳性团聚体的含量进行了测定。结果表明:不同植被下表层(0~20 cm)土壤中TOC,SPPC,HDC,HWC和水稳性团聚体含量差异显著(P<0.05);水稳性团聚体与TOC呈极显著正相关,且与SPPC呈极显著负相关(P<0.01),与HDC和HWC不相关,但HDC,HWC与TOC和SPPC的互作却与水稳性团聚体含量之间呈极显著相关(P<0.01)。
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| 关 键 词： | 高寒草原 生态系统 土壤 有机碳组成 水稳性团聚体 |
Effect on Alpine Vegetation of Different Grassland Ecosystems Composed of Soil Organic Carbon and Water Stable Aggregates Content |
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| WANG Jian-lin,WANG Zhong-hong,ZHANG Xian-zhou,OUYANG Hua,CHANG Tian-jun,LI Peng,SHEN Zhen-xi,ZHONG Zhi-ming.Effect on Alpine Vegetation of Different Grassland Ecosystems Composed of Soil Organic Carbon and Water Stable Aggregates Content[J].Acta Agrestia Sinica,2010,18(6):749-757. |
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| Authors: | WANG Jian-lin WANG Zhong-hong ZHANG Xian-zhou OUYANG Hua CHANG Tian-jun LI Peng SHEN Zhen-xi ZHONG Zhi-ming |
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| Institution: | WANG Jian-lin1,WANG Zhong-hong1,ZHANG Xian-zhou2,OUYANG Hua2,CHANG Tian-jun1,LI Peng1,SHEN Zhen-xi2,ZHONG Zhi-ming2(1.Plant Sci-Tech Department,Tibet Agricultural , Animal Husb,ry College,Linzhi,Tibet 860000,China,2.Institute of Geographic Sciences , Natural Resources Research,CAS,Beijing 100101,China) |
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| Abstract: | This study reveals effects of different vegetations on soil organic carbon components and water stable aggregate contents of Qinghai-Tibet Plateau alpine grassland ecosystem.Soil total organic carbon(TOC),sodium pyrophosphate extraction of organic carbon(SPPC),hydrolysis of carbohydrate(HDC),hot water extraction of carbohydrates(HWC) and water-stable aggregates of contents were measured from July to August in 2007.Results show that total organic carbon(TOC),sodium pyrophosphate extraction of organic carbon(... |
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| Keywords: | Alpine grassland Ecosystem Soil Composition of organic carbon Water-stable aggregates |
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