北京师范大学学报（自然科学版）2016，Vol.52Issue(4)：512-517,6.DOI:10.16360/j.cnki.jbnuns.2016.04.019
内蒙古温带典型草原物候期的变化研究∗
Monitoring phenological phase of typical temperate steppe in Inner Mongolia
摘要
Abstract
Different vegetation index timing curves were compared to choose the best fit for phenological phase and length of vegetation season from 1990 to 2008 and to analyze temporalspatial characteristics.The beginning and ending of vegetation season were found to show gradual delays from Southwest to Northeast regions,with some variations in different years.Fitted typical grassland average phenophase and length of vegetation season in Xilingole indicated that beginning of vegetation season still showed delays from Southwest to Northeast regions.The beginning and ending of vegetation season and length of vegetation season was concentrated in 110~150 days,300~320 days and 190~200 days respectively,variations were advanced, advanced and shortened respectively. The difference of measured and fitted values for the beginning of vegetation season in the seven year study period was -4 days with very good overall fit.关键词
NDVI/返青期/枯黄期/生长季长度/典型草原Key words
NDVI/beginning of vegetation season/ending of vegetation season/length of vegetation season/typical steppe分类
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刘红海,王宏,李晓兵,迟登凯,喻峰..内蒙古温带典型草原物候期的变化研究∗[J].北京师范大学学报（自然科学版）,2016,52(4):512-517,6.基金项目
国家自然科学基金资助项目(41471350) （41471350）
国家重点基础研究发展计划资助项目(2014CB138803) （2014CB138803）
国家创新团队计划资助项目(41321001) （41321001）
地表过程与资源生态国家重点实验室资助项目 （）
