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中国东北黑土养分空间异质性
作者姓名:ZHANG Xing-Yi  SUI Yue-Yu  ZHANG Xu-Dong  MENG Kai  S. J. HERBERT
作者单位:YU Dong-Sheng(State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences,Nanjing 210008 (China)) ; SHI Xue-Zheng(State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences,Nanjing 210008 (China)) ; WANG Hong-Jie(State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences,Nanjing 210008 (China)) ; SUN Wei-Xia(State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences,Nanjing 210008 (China)) ; E. D. WARNER(Office for Remote Sensing of Earth Resources, Penn State Institutes of the Environment, Penn State University, PA 16802-4900 (USA)) ; LIU Qing-Hua(State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences,Nanjing 210008 (China)) ;
摘    要:Patterns of soil organic carbon (SOC) storage and density in various soil types or locations are the foundation for examining the role of soil in the global carbon cycle. An assessment of SOC storage and density patterns in China based on soil types as defined by Chinese Soil Taxonomy (CST) and the recently compiled digital 11000 000 Soil Database of China was conducted to generate a rigorous database for the future study of SOC storage. First, SOC densities of 7292soil profiles were calculated and linked by soil type to polygons of a digital soil map using geographic information system resulting in a 11000 000 SOC density distribution map of China. Further results showed that soils in China covered 9 281 ×103 km2 with a total SOC storage of 89.14 Gt and a mean SOC density 96.0 t ha-1. Among the 14 CST orders, Cambosols and Argosols constituted high percentage of China's total SOC storage, while Andosols, Vertosols, and Spodsols had a low percentage. As for SOC density, Histosols were the highest, while Primosols were the lowest. Specific patterns of SOC storage of various soil types at the CST suborder, group, and subgroup levels were also described. Results obtained from the study of SOC storage and density of all CST soil types would be not only useful for international comparative research, but also for more accurately estimating and monitoring of changes of SOC storage in China.

关 键 词:土壤分析  中国  分类学  有机碳
收稿时间:2006-07-18
修稿时间:2006-11-14

Spatial variability of nutrient properties in black soil of Northeast China
ZHANG Xing-Yi,SUI Yue-Yu,ZHANG Xu-Dong,MENG Kai,S. J. HERBERT.Spatial variability of nutrient properties in black soil of Northeast China[J].Pedosphere,2007,17(1):19-29.
Authors:ZHANG Xing-Yi  SUI Yue-Yu  ZHANG Xu-Dong  MENG Kai and S J HERBERT
Institution:Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin 150081 (China). E-mail: xyzhang1966@yahoo.com,cn;Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin 150081 (China). E-mail: xyzhang1966@yahoo.com,cn;Institute of Applied Ecology, Chinese Acadeney of Sciences, Shenyang 110016 (China);Heilongjiang University, Harbin 150080 (China);Department of Plant Soil and Insect Sciences, University of Massachusetts, Amherst, MA 01003 (USA)
Abstract:Patterns of soil organic carbon (SOC) storage and density in various soil types or locations are the foundation for examining the role of soil in the global carbon cycle. An assessment of SOC storage and density patterns in China based on soil types as defined by Chinese Soil Taxonomy (CST) and the recently compiled digital 11000 000 Soil Database of China was conducted to generate a rigorous database for the future study of SOC storage. First, SOC densities of 7292soil profiles were calculated and linked by soil type to polygons of a digital soil map using geographic information system resulting in a 11000 000 SOC density distribution map of China. Further results showed that soils in China covered 9 281 ×103 km2 with a total SOC storage of 89.14 Gt and a mean SOC density 96.0 t ha-1. Among the 14 CST orders, Cambosols and Argosols constituted high percentage of China's total SOC storage, while Andosols, Vertosols, and Spodsols had a low percentage. As for SOC density, Histosols were the highest, while Primosols were the lowest. Specific patterns of SOC storage of various soil types at the CST suborder, group, and subgroup levels were also described. Results obtained from the study of SOC storage and density of all CST soil types would be not only useful for international comparative research, but also for more accurately estimating and monitoring of changes of SOC storage in China.
Keywords:Chinese soil taxonomy  soil database  soil organic carbon  soil type  storage
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