Earth Science Frontiers ›› 2008, Vol. 15 ›› Issue (5): 57-66.
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Hunan Institute of Geology, Changsha 410007,China
Online:
Published:
Abstract:
It is important to research on the distribution rule of the regional soil carbon
pool for the study of global change, soil fertility and ecosystem function appraisal. The
domestic and foreign scientists do the research by using models and the second soil survey
data for lack of longterm actual material. This article studies several factors affecting
soil carbon distribution by using ecologicalgeochemistry investigation data in Dongting
lake district. The study revealed that the regional soil carbon quantity is in the high
intermediate level of our country, and that the geological landform is the most important
factor affecting the distribution of soil inorganic carbon quantity, and the soil type is
also an influential factor. The soil erosion has little effect on TOC in the surface layer.
The utilization of land by forestation, and the prevention and control of soil dives
nurtures are advantageous to the soil carbon storage. The temporalspatial distribution
rules of the deposition of TOC and so on indicate that the regional environmental variation
is the response to the global environmental variation. This research provided a basis for
the study of regional land utilization, soil carbon fixation and global environment
variation.
Key words: Key words: SOC; Ecogeochemistry; Land use; temporalspatial distribution; Carbon density; rank correlation analysis
Key words: SOC; Ecogeochemistry; Land use; temporalspatial distribution; Carbon density;
rank correlation analysis
CLC Number:
S153
X171
ZHANG Jian-Xin GENG Xu-Dong LU Jiang LV Huan-Zhe. The distribution rule of soil carbon in Dongting lake district and its response to the global climate change.[J]. Earth Science Frontiers, 2008, 15(5): 57-66.
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