Spatial characteristics of soil organic carbon and nitrogen in Inner Mongolia

Abstract

Abstract: Studies on the amount and spatial distribution of soil organic carbon/nitrogen in Inner Mongolia and their relationship to main climate factors showed that the content of soil organic carbon and nitrogen was 3.24～43.24 kg·m^-3 and 269.56～3085.60 g·m^-3,respectively, and the C/N ratio was about 4.46～17.13. The correlation between soil organic carbon/nitrogen and temperature was negative, and R was 0.557 and 0.460,respectively.Soil organic carbon/nitrogen had a weak positive correlation to precipitation, and Rwas 0.285 and 0.203. Soil organic carbon and nitrogen appeared a reducing trend with increasing temperature and decreasing precipitation from northeast to southwest.

Key words: Soil carbon/nitrogen cycle, Carbon density, Nitrogen cycle, C/N ratio, inhibitory activity, bio-control., Botrytis cinerea, Streptomyces chungwhensis

CLC Number:

P467
S159.2

CHEN Qingmei, WANG Shaoqiang, YU Guirui. Spatial characteristics of soil organic carbon and nitrogen in Inner Mongolia[J]. Chinese Journal of Applied Ecology, 2003, (5): 699-704.

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