College of Forestry;
Gansu Agricultural University;
Lanzhou 730070;
China;
Chinese Academy of Forestry;
Beijing 100091;
China;
University of Chinese Academy of Sciences;
Beijing 100049;
China;
College & Global Change and Earth System Science;
Beijing Normal University;
Beijing 100875;
China;
vegetation; growth; climatic; drivers; seasonal; variation; ecological; engineering; interaction; Beiing-Tianjin; Sand; Source; Controlling; Project; (BTSSCP); NDVI;