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Spatio-temporal dynamics of maize cropping system in Northeast China between 1980 and 2010 by using spatial production allocation model

Auteur(s) et Affiliation(s)

TAN, J.
Key Lab. of Agri-informatics, Ministry of Agriculture / Inst. of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, Chine
YANG, P.
Key Lab. of Agri-informatics, Ministry of Agriculture / Inst. of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, Chine
LIU, Z.
Geography and Planning School of Sun Yat-sen Univ., Guangzhou, Chine
WU, W.
Key Lab. of Agri-informatics, Ministry of Agriculture / Inst. of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, Chine
ZHANG, L.
Key Lab. of Agri-informatics, Ministry of Agriculture / Inst. of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, Chine
LI, Zhi.
Key Lab. of Agri-informatics, Ministry of Agriculture / Inst. of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, Chine
YOU, L.
Environment and Production Technology Division, International Food Policy Research Inst., Washington, Etats-Unis
TANG, H.
Key Lab. of Agri-informatics, Ministry of Agriculture / Inst. of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, Chine
LI, Zhe.
Key Lab. of Agri-informatics, Ministry of Agriculture / Inst. of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, Chine


Description :
Based on the cross-entropy theory, a spatial production allocation model (SPAM) has been developed for presenting spatio-temporal dynamics of maize cropping system in Northeast China during 1980–2010, at the pixel level. The AA. further explored spatio-temporal variations of maize with latitude, longitude, and elevation. Discussion of the results. It is highlighted that maize planting density increased gradually to a moderately high level over the investigated period, which reflected the trend of aggregation of maize cultivation driven by market demand.


Type de document :
Article de périodique

Source :
Journal of geographical sciences. Acta geographica sinica, issn : 1009-637X, 2014, vol. 24, n°. 3, p. 397-410, nombre de pages : 14, Références bibliographiques : 41 ref.

Date :
2014

Editeur :
Pays édition : Chine

Langue :
Anglais
Droits :
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