基于土地利用变化的农牧交错带典型流域生态风险评价——以洋河为例
徐兰1,2, 罗维2,*, 周宝同1

Landscape Ecological Risk Assessment of Farming-Pastoral Ecozone Based on Land Use Change—A Case Study of the Yanghe Watershed, China
XU Lan1,2, LUO Wei2, ZHOU Bao-tong1
洋河流域海拔和坡度
Altitude and slope of the Yanghe Watershed