Chai Hua1; Yu Guirui1; He Nianpeng1; Wen Ding1; Li Jie2; Fang Jiangping2
Source Publicationchinesegeographicalscience
AbstractCharacterization of the vertical distribution of soil organic carbon (C), nitrogen (N), and phosphorus (P) may improve our ability to accurately estimate soil C, N, and P storage. Based on a database of 21 354 records in 74 long-term monitoring plots from 2004 to 2013 in the Chinese Ecosystem Research Network (CERN), we built fitting functions to quantify the vertical distribution of soil C, N, and P (up to 100 cm depth) in the typical Chinese terrestrial ecosystems. The decrease of soil C, N, and P content with depth can be well fitted with various mathematical functions. The fitting functions differed greatly between artificial (agriculture) and natural (desert, forest, and grassland) ecosystems, and also differed with respect to soil C, N, and P content. In both the artificial and natural ecosystems, the best fitting functions were exponential functions for C, quadratic functions for N, and quadratic functions for P. Furthermore, the stoichiometric ratios of soil C, N, and P were ranked in descending order: grassland > forest > agriculture > desert, and were also associated with climate. This study is the first to build the fitting functions for the profile distribution of soil C, N, and P in China at a national scale. Our findings provide a scientific basis to accurately assess the storage of C, N, and P in soils at a large scale, especially for the integrative analysis of historical data.
Funding Project[Strategic Priority Research Program of Chinese Academy of Sciences] ; [National Natural Science Foundation of China] ; [Kezhen Distinguished Talents in Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences]
Document Type期刊论文
First Author Affilication中国科学院地理科学与资源研究所
Recommended Citation
GB/T 7714
Chai Hua,Yu Guirui,He Nianpeng,et al. verticaldistributionofsoilcarbonnitrogenandphosphorusintypicalchineseterrestrialecosystems[J]. chinesegeographicalscience,2015,25(5):549.
APA Chai Hua,Yu Guirui,He Nianpeng,Wen Ding,Li Jie,&Fang Jiangping.(2015).verticaldistributionofsoilcarbonnitrogenandphosphorusintypicalchineseterrestrialecosystems.chinesegeographicalscience,25(5),549.
MLA Chai Hua,et al."verticaldistributionofsoilcarbonnitrogenandphosphorusintypicalchineseterrestrialecosystems".chinesegeographicalscience 25.5(2015):549.
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