Direct measurement of soil organic carbon content change in the croplands of China

Bellamy, 2005, Carbon losses from all soils across England and Wales 1978-2003, Nature, 437, 245, 10.1038/nature04038

Bernstein, 1999, Elements of Statistics II: Inferential Statistics

Editorial Board of China Agriculture Yearbook, 2008, China Agriculture Yearbook 2007

Editorial Board of China's National Assessment Report on Climate Change, 2007, China's National Assessment Report on Climate Change

Gao, 2002, Analysis on the current status of utilization of crop straw in China, Journal of Huazhong Agricultural University, 21, 242

Goidts, 2009, Magnitude and sources of uncertainties in soil organic carbon (SOC) stock assessments at various scales, European Journal of Soil Science, 60, 23, 10.1111/j.1365-2389.2009.01157.x

Gong, 2009, Long-term manuring and fertilization effects on soil organic carbon pools under a wheat-maize cropping system in North China Plain, Plant and Soil, 314, 67, 10.1007/s11104-008-9705-2

Huang, 2006, Changes in topsoil organic carbon of croplands in mainland China over the last two decades, Chinese Science Bulletin, 51, 1785, 10.1007/s11434-006-2056-6

Huang, 2007, Net primary production of Chinese croplands from 1950 to 1999, Ecological Applications, 17, 692, 10.1890/05-1792

Lal, 2002, Soil carbon sequestration in China through agricultural intensification, and restoration of degraded and desertified ecosystems, Land Degradation and Development, 13, 469, 10.1002/ldr.531

Lark, 2006, Baseline values and change in the soil, and implications for monitoring, European Journal of Soil Science, 57, 916, 10.1111/j.1365-2389.2006.00875.x

Li, 2003, Modeling soil organic carbon change in croplands of China, Ecological Applications, 13, 327, 10.1890/1051-0761(2003)013[0327:MSOCCI]2.0.CO;2

Li, 2006, Investigation of soil fertility in Deqing paddy field, Zhejiang Agricultural Sciences, 3, 209

Liu, 2002, Degradation reasons of soil fertility and improvement measures at Qinggang county, Heilongjiang province, Heilongjiang Agriculture, 5, 43

Liu, 2010, History of land reclamation in the black soil region of north eastern China, China Science and Technology Information, 2, 77

Lu, 2009, Soil carbon sequestrations by nitrogen fertilizer application, straw return and no-tillage in China's cropland, Global Change Biology, 15, 281, 10.1111/j.1365-2486.2008.01743.x

Meng, 2002, Decomposition, accumulation and their variant pattern of organic matter in black soil area, Soil and Environment, 11, 42

National Soil Survey Office, 1993, China Soil Series

National Soil Survey Office, 1994, China Soil Series

National Soil Survey Office, 1995, China Soil Series

National Soil Survey Office, 1996, China Soil Series

Pan, 2003, Storage and sequestration potential of topsoil organic carbon in China's paddy soils, Global Change Biology, 10, 79, 10.1111/j.1365-2486.2003.00717.x

Peng, 2006, Change of farmland soil organic carbon content in typical region in Hunan province, Environmental Sciences, 27, 1319

Schlesinger, 1997, Biogeochemistry, an Analysis of Global Change

Sleutel, 2003, Estimates of carbon stock changes in Belgian cropland, Soil Use and Management, 19, 166, 10.1079/SUM2003187

Smith, 2005, Projected changes in mineral soil carbon of European croplands and grasslands, 1990-2080, Global Change Biology, 11, 2141, 10.1111/j.1365-2486.2005.001075.x

Smith, 2007, Climate change cannot be entirely responsible for soil carbon loss observed in England and Wales, 1978-2003, Global Change Biology, 13, 2605, 10.1111/j.1365-2486.2007.01458.x

Song, 2005, Topsoil organic carbon storage of China and its loss by cultivation, Biogeochemistry, 74, 47, 10.1007/s10533-004-2222-3

Tang, 2006, Estimations of soil organic carbon storage in cropland of China based on DNDC model, Geoderma, 134, 200, 10.1016/j.geoderma.2005.10.005

Tateishi R Wen CG 1999

Walkley, 1934, An examination of the Degtjareff method for determining soil organic matter and a proposed modification of the chromic acid titration method, Soil Science, 37, 29, 10.1097/00010694-193401000-00003

Wang, 2002, An approach to the changes of black soil quality (II) - the status and changes of organic matter, total N, total S and total P in black soils (Isohumosols) in different areas, Journal of Shenyang Agricultural University, 33, 270

Wang, 1999, Estimating soil carbon reservoir of terrestrial ecosystem in China, Geographical Research, 18, 349

Wei, 2004, Temporal and spatial variability of soil organic matter contents in Pixian county, Sichuan, Chinese Journal of Soil Science, 35, 261

Wu, 2003, Distribution and storage of soil organic carbon in China, Global Biogeochemical Cycles, 17, 10.1029/2001GB001844

Wu, 2006, Changes of soil fertility in Baoshan district in last 20 years, Shanghai Agricultural Science and Technology, 2, 11

Xie, 2007, Soil organic carbon stocks in China and changes from 1980s to 2000s, Global Change Biology, 13, 1989, 10.1111/j.1365-2486.2007.01409.x

Yan, 2008, Number of soil profiles needed to give a reliable overall estimate of soil organic carbon storage using profile carbon density data, Soil Science and Plant Nutrition, 54, 819, 10.1111/j.1747-0765.2008.00305.x

Yu, 2009, Spatial changes in soil organic carbon density and storage of cultivated soils in China from 1980 to 2000, Global Biogeochemical Cycles, 23, 10.1029/2008GB003428

Zhang, 2009, Long-term effects of manure application on grain yield under different cropping systems and ecological conditions in China, Journal of Agricultural Science, 147, 31, 10.1017/S0021859608008265

Zuo, 2004, Variations trend of yearly mean air temperature and precipitation in China in the last 50 years, Plateau Meteorology, 23, 238