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Spatio-temporal responses of cropland phenophases to climate change in Northeast China

Auteur(s) et Affiliation(s)

LI, Z.
Key Lab. of Resources Remote sensing and Digital Agriculture, Ministry of Agriculture, Beijing, Chine
Inst. of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, Chine
TANG, H.
Key Lab. of Resources Remote sensing and Digital Agriculture, Ministry of Agriculture, Beijing, Chine
Inst. of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, Chine
YANG, P.
Key Lab. of Resources Remote sensing and Digital Agriculture, Ministry of Agriculture, Beijing, Chine
Inst. of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, Chine
WU, W.
Key Lab. of Resources Remote sensing and Digital Agriculture, Ministry of Agriculture, Beijing, Chine
Inst. of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, Chine
CHEN, Z.
Key Lab. of Resources Remote sensing and Digital Agriculture, Ministry of Agriculture, Beijing, Chine
Inst. of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, Chine
ZHOU, Q.
Key Lab. of Resources Remote sensing and Digital Agriculture, Ministry of Agriculture, Beijing, Chine
Inst. of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, Chine
ZHANG, L.
Key Lab. of Resources Remote sensing and Digital Agriculture, Ministry of Agriculture, Beijing, Chine
Inst. of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, Chine
ZOU, J.
Key Lab. of Resources Remote sensing and Digital Agriculture, Ministry of Agriculture, Beijing, Chine
Inst. of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, Chine


Description :
The AA. investigated the responses of cropland phenophases to changes of agricultural thermal conditions in Northeast China using the SPOT-VGT Normalized Difference Vegetation Index (NDVI) ten-day-composed time-series data, observed crop phenophases and the climate data collected from 1990 to 2010. For the extracted length of growing season and the observed growth period, notable correlations were found in almost same regions. However, there was no obvious correlation between the end-of-growth date and the first frost date in the study area. The results indicated that the crop growth periods were shortened because of the elevated temperature; in contrast, the extended growth period usually meant a crop transformation from early- or middle-maturing varieties into middle or late ones.


Type de document :
Article de périodique

Source :
Journal of geographical sciences. Acta geographica sinica, issn : 1009-637X, 2012, vol. 22, n°. 1, p. 29-45, nombre de pages : 17, Références bibliographiques : 2 p.

Date :
2012

Editeur :
Pays édition : Chine

Langue :
Anglais
Droits :
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