Climate;
Center,;
China;
Meteorological;
Administration,;
Be'~ijing;
100081,;
China;
Remote;
Sensing;
Information;
Center;
for;
Agriculture,;
Xi'an;
710014,;
China;
University;
of;
Information;
Science;
and;
Technology,;
Nanjing;
210044,;
China;
区域气候; 中国西部; 模式模拟; 覆被变化; 土地覆盖类型; 农田; 土地覆盖变化; 土壤水分;