年较差东部比西部的下降趋势显著。

The decreasing trends of annual temperature range are more obvious in East China than in the West.

密切值法评价结果为2003年、2004年汾河灌区运行状况为良好，2002年为中等，2001年较差。

Closely the value of evaluation results for the 2003 and 2004 Fenhe Irrigation operational status for good in 2002, medium poor in 2001.

流域尺度上，NDVI年较差、年均温度、月均温度在1982~1999年呈升高趋势，年降水量呈减少趋势；

On basin scale, the annual NDVI variation and the annual and monthly average temperature from 1982 to 1999 increased, while the annual precipitation during this period decreased.