北方农牧交错带人工林土壤理化性质分布格局

杨红玲, 姚博, 苏永中, 李玉霖

Distribution pattern of soil physical and chemical properties of plantation forest in northern agro-pastoral ecotone

Hongling Yang, Bo Yao, Yongzhong Su, Yulin Li

图2 2000—2020年北方农牧交错带年降水量、年均气温和干燥度指数的空间分布

Fig.2 Spatial distribution of annual precipitation， temperature and aridity index in the agro-pastoral ecotone of Northern China from 2000 to 2020