Cited by 348Remote Sensing in AgricultureLand Use and Ecosystem ServicesRemote Sensing and Land Use

Combining remote sensing and ground census data to develop new maps of the distribution of rice agriculture in China

Open access
Frolking, Steve, Qiu, Jianjun, Boles, Stephen, Xiao, Xiangming, Liu, Jiyuan, Zhuang, Yahui, Li, Changsheng, Qin, Xiaoguang·2002·Global Biogeochemical Cycles

Abstract

Large‐scale assessments of the potential for food production and its impact on biogeochemical cycling require the best possible information on the distribution of cropland. This information can come from ground‐based agricultural census data sets and/or spaceborne remote sensing products, both with strengths and weaknesses. Official cropland statistics for China contain much information on the distribution of crop types, but are known to significantly underestimate total cropland areas and are generally at coarse spatial resolution. Remote sensing products can provide moderate to fine spatial resolution estimates of cropland location and extent, but supply little information on crop type or management. We combined county‐scale agricultural census statistics on total cropland area and sown area of 17 major crops in 1990 with a fine‐resolution land‐cover map derived from 1995–1996 optical remote sensing (Landsat) data to generate 0.5° resolution maps of the distribution of rice agriculture in mainland China. Agricultural census data were used to determine the fraction of crop area in each 0.5° grid cell that was in single rice and each of 10 different multicrop paddy rice rotations (e.g., winter wheat/rice), while the remote sensing land‐cover product was used to determine the spatial distribution and extent of total cropland in China. We estimate that there were 0.30 million km2 of paddy rice cropland; 75% of this paddy land was multicropped, and 56% had two rice plantings per year. Total sown area for paddy rice was 0.47 million km2. Paddy rice agriculture occurred on 23% of all cultivated land in China.

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  • Single cropping dominates the U.S. crop systems, while multiple cropping has been significantly contributing to the overall harvest area and total annual crop production in China.

    “On the other, however, single cropping dominates the U.S. crop systems, while multiple cropping has been significantly contributing to the overall harvest area and total annual crop production in China [56,57].”

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Research works printed but not linked: 9

  1. Crook, F., Underreporting of China's cultivated land area: Implications for world agricultural trade, in China International Agricultural and Trade Report, Sit. Outlook Ser. RS-93-4, pp. 33 -39, U.S. Dep. of Agriculture, Washington, D. C., 1993.
  2. Fu, L. Q., S. W. Zhang, D. W. Liu, and E. P. Wan, Image processing for maize yield estimation by remote sensing (in Chinese), in Remote Sensing Technique for Wheat, Maize, and Rice Yield Estimation, edited by B. S. Chen, pp. 8 -15, China Sci. and Technol., Beijing, 1993.
  3. Lal, R., N. R. Fausey, and D. J. Eckert, Land use and management effects of emissions of radiatively active gases from two soils in Ohio, in Soil Management and the Greenhouse Effect, edited by R. Lal et al., pp. 41 -60, CRC, Boca Raton, Fla., 1995.
  4. Liu, J., (Ed.), Macro-Scale Survey and Dynamic Study of Natural Resources and Environment of China by Remote Sensing (in Chinese), 353 pp., Press of Sci. and Technol., Beijing, 1996.
  5. Prather, M., R. Derwent, D. Ehhalt, P. Fraser, E. Sanhueza, and X. Zhou, Other trace gases and atmospheric chemistry, in Climate Change 1994, edited by J. T. Houghton et al., pp. 77 -126, Cambridge Univ. Press, New York, 1995.
  6. Tang, X., Studies on geo-spatial data fusion and its applications, Ph.D. dissertation, Institute of Remote Sensing Applications (in Chinese), 139 pp., Chin. Acad. of Sci., Beijing, 2000.
  7. Wu, C., (Editor in Chief ), Land-Use Map of China (1:1,000,000 scale), Science Press, Beijing (In Chinese), 1990.
  8. Xi, C., (Ed.), Soil of China (in Chinese), Agric. Press, Beijing, 1998.
  9. Yuyun, B. I., and Z. Y. Zheng, Actual changes of cultivated area since the founding of the new China (in Chinese), Resour. Sci., 22(2), 8 -12, 2000.

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Authors
Frolking, S., Qiu, J., Boles, S., Xiao, X., Liu, J., Zhuang, Y., Li, C., & Qin, X.
Affiliations
  • University of New Hampshire (US)
  • Institute of Agricultural Resources and Regional Planning (CN)
  • Chinese Academy of Sciences (CN)
Venue
Global Biogeochemical Cycles
Published
2002-11-19
Volume
16
Issue
4
ISSN
  • 0886-6236 (ISSN-L)
  • 1944-9224
OpenAlex
W1891144596
Cited by
348
References
28
Citations by year
2026: 4 · 2025: 11 · 2024: 19 · 2023: 25 · 2022: 23 · 2021: 26 · 2020: 17 · 2019: 16 · 2018: 20 · 2017: 19 · 2016: 19 · 2015: 23 · 2014: 21 · 2013: 15 · 2012: 18
FWCI
7.75
Type
journal article
Language
en
Open access
Locations
  • Global Biogeochemical Cycles (publishedVersion)
  • University of New Hampshire Scholars Repository (University of New Hampshire at Manchester) (submittedVersion)
Funders
  • National Science Foundation
  • U.S. Department of Energy
  • National Aeronautics and Space Administration
  • U.S. Department of Agriculture
  • Chinese Academy of Sciences
  • Chinese Academy of Agricultural Sciences
Topics
  • Physical Sciences › Environmental Science › Ecology › Remote Sensing in Agriculture
  • Physical Sciences › Environmental Science › Global and Planetary Change › Land Use and Ecosystem Services
  • Physical Sciences › Earth and Planetary Sciences › Atmospheric Science › Remote Sensing and Land Use
Keywords
rice cultivation, paddy rice, cropland distribution, agricultural census data, Landsat, crop rotation, multiple cropping, sown area, food production potential, China

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