IMHE OpenIR  > 山地表生过程与生态调控重点实验室
贵州喀斯特石漠化过程中的土壤有机碳与容重关系
Alternative TitleRelationship between Soil Organic Carbon and Bulk Density in the Rocky Desertification Process of Karst Ecosystem in Guizhou
闫俊华1; 周传艳2; 文安邦3; 刘兴诏1,4; 褚国伟1; 李坤1,4
2011
Source Publication热带亚热带植物学报
ISSN1005-3395
Volume7Issue:3Pages:273-278
SubtypeArticle
Contribution Rank3
Abstract测定了不同石漠化等级的西南喀斯特生态系统的土壤容重和土壤有机碳。结果表明:西南喀斯特生态系统的土壤容重为0.91~1 .37kg cm~(-3),土壤有机碳含量变化较大,为8.1 ~58.9 g kg~(-1)。在0 ~40 cm的土层中,没有发生石漠化的生态系统的有机碳储量达16.91 kg m~(-2),伴随着石漠化程度的加剧,土壤有机碳储量急剧下降,极度退化土壤的有机碳储量只有0.52 kg m~(-2)。在1999-2005年间,中国西南石漠化(约55*10~4 km~2)导致的有机碳流失通量年增加量超过28 Tg。同时,探讨了喀斯特石漠化过程中土壤有机碳流失的去向,喀斯特石漠化过程土壤有机碳对生态恢复的限制作用,利用土壤容重推算土壤有机碳的可靠性。
Other AbstractThe relationship between soil bulk density and soil organic carbon in a rocky desertification process of karst ecosystem in Guizhou were studied by using time-space mutual substitution method.The results showed that the soil bulk density ranged from 0.91 kg cm~(-3)to 1.37 kg cm~(-3),and soil organic carbon content from 8.1 g kg~(-1)to 58.9 g kg~(-1).Soil organic carbon storage decreased with the progress of rocky desertification,there were 16.91 kg m~(-2)in the original karst ecosystem and 0.52 kg m~(-2)in the extreme rocky desertification area at 0-40 cm soil depth layer.Annual soil organic carbon loss caused by rocky desertification was more than 28 Tg during 1999-2005 in Southwest China.Furthermore,where soil organic carbon went in the rocky desertification process was discussed,as well as the inhibition effects of soil organic carbon on ecosystem restoration,and the reliability of soil organic carbon calculated by soil bulk density.
Keyword喀斯特 石漠化 土壤有机碳 土壤容重
Indexed ByCSCD
Language中文
CSCD IDCSCD:4228151
Citation statistics
Cited Times:12[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/25998
Collection山地表生过程与生态调控重点实验室
Corresponding Author闫俊华
Affiliation1.中国科学院华南植物园;
2.贵州省喀斯特资源环境与发展研究中心;
3.中国科学院水利部成都山地灾害与环境研究所;
4.中国科学院研究生院
Recommended Citation
GB/T 7714
闫俊华,周传艳,文安邦,等. 贵州喀斯特石漠化过程中的土壤有机碳与容重关系[J]. 热带亚热带植物学报,2011,7(3):273-278.
APA 闫俊华,周传艳,文安邦,刘兴诏,褚国伟,&李坤.(2011).贵州喀斯特石漠化过程中的土壤有机碳与容重关系.热带亚热带植物学报,7(3),273-278.
MLA 闫俊华,et al."贵州喀斯特石漠化过程中的土壤有机碳与容重关系".热带亚热带植物学报 7.3(2011):273-278.
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