黄河流域生态足迹演进、时空分异与驱动因素——兼论环境库兹涅茨曲线的空间效应
冀雪霜, 孙鹏

Evolutionspatio-temporal differentiation and driving factors of ecological footprint in the Yellow River Basinthe spatial effect of environmental Kuznets curve
Xueshuang Ji, Peng Sun
图2 黄河流域生态指标时序变化
Fig.2 Temporal variation of ecological indicators in the Yellow River Basin