近40a黄河流域国土空间格局变化特征与形成机理

宋永永, 薛东前, 夏四友, 米文宝

Change characteristics and formation mechanism of the territorial spatial pattern in the Yellow River Basin from 1980 to 2018, China

SONG Yongyong, XUE Dongqian, XIA Siyou, MI Wenbao

图6 1980—2018年黄河流域国土空间标准差椭圆变化

Fig. 6 Changes of standard deviation ellipse of territorial space pattern in the Yellow River Basin from 1980 to 2018