CORRELATION ANALYSIS OF NDVI DIFFERENCE SERIES AND CLIMATE VARIABLES IN XILINGOLE STEPPE FROM 1983 TO 1999
GU Zhi-Hui, CHEN Jin, SHI Pei-Jun, XU Ming
Chin J Plant Ecol . 2005, (5): 753 -765 .  DOI: 10.17521/cjpe.2005.0100