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作者:

Du, Y. (Du, Y..) | Liu, T. (Liu, T..) | Huffman, T. (Huffman, T..) | Mcconkey, B. (Mcconkey, B..) | Toure, S. (Toure, S..) | Feng, F. (Feng, F..) | Green, M. (Green, M..) | Liu, J. (Liu, J..) | Liu, H. (Liu, H..)

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Scopus SCIE

摘要:

Integration of large-area, economically driven macro-models and small-area, biophysically based models in the Canadian agricultural sector was described recently in the development of a land-use allocation model (LUAM). We have since developed and integrated an improved methodology for allocating crop area changes generated for large areas by the Canadian Regional Agricultural Model (CRAM) to much smaller Soil Landscapes of Canada (SLC) polygons. Validation of outputs showed considerable improvement. The new coefficients of determination (R-2) between simulated and actual data, with previous values in brackets, were 0.69 for fodder corn (0.54), 0.88 for wheat (0.62), 0.77 for hay (0.26), 0.54 for alfalfa (not previously reported), 0.88 for soya bean (0.26) and 0.86 for grain corn (0.22). The best result was obtained for soya bean, with a normalized root mean square error (NRMSE) of 0.31%, and the poorest for alfalfa, with NRMSE = 17.34%.

关键词:

Agricultural land use optimization land-use allocation socio-economic model biophysical Canada

作者机构:

  • [ 1 ] [Du, Y.]Anhui Agr Univ, Coll Econ & Management, Hefei, Anhui, Peoples R China
  • [ 2 ] [Liu, T.]Beijing Univ Technol, Inst Circular Econ, Beijing, Peoples R China
  • [ 3 ] [Huffman, T.]Agr & Agri Food Canada, Eastern Cereal & Oilseed Res Ctr, Ottawa, ON K1A 0C6, Canada
  • [ 4 ] [Green, M.]Agr & Agri Food Canada, Eastern Cereal & Oilseed Res Ctr, Ottawa, ON K1A 0C6, Canada
  • [ 5 ] [Liu, J.]Agr & Agri Food Canada, Eastern Cereal & Oilseed Res Ctr, Ottawa, ON K1A 0C6, Canada
  • [ 6 ] [Mcconkey, B.]Agr & Agri Food Canada, Semiarid Prairie Agr Res Ctr, Swift Current, SK S9H 3X2, Canada
  • [ 7 ] [Toure, S.]Carleton Univ, Environm Canada, Natl Wildlife Res Ctr, Ottawa, ON K1A 0H3, Canada
  • [ 8 ] [Feng, F.]Univ Sci & Technol China, Sch Publ Affairs, Hefei 230026, Anhui, Peoples R China
  • [ 9 ] [Liu, H.]Northeast Agr Univ, Coll Resources & Environm Sci, Harbin, Heilongjiang, Peoples R China

通讯作者信息:

  • [Huffman, T.]Agr & Agri Food Canada, Eastern Cereal & Oilseed Res Ctr, 960 Carling Ave, Ottawa, ON K1A 0C6, Canada

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来源 :

SOIL USE AND MANAGEMENT

ISSN: 0266-0032

年份: 2015

期: 3

卷: 31

页码: 417-420

3 . 8 0 0

JCR@2022

ESI学科: AGRICULTURAL SCIENCES;

ESI高被引阀值:168

JCR分区:2

中科院分区:3

被引次数:

WoS核心集被引频次: 1

SCOPUS被引频次: 1

ESI高被引论文在榜: 0 展开所有

万方被引频次:

中文被引频次:

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