黑土耕作区侵蚀沟治理紧迫度空间分布特征

李全峰, 李吉程, 于明鹏, 郭欣欣

Spatial pattern of gully erosion control urgency in black soil farming area

LI Quanfeng, LI Jicheng, YU Mingpeng, GUO Xinxin

图4 侵蚀沟面积的洛伦兹曲线

Fig.4 Lorentz curve of erosion gully area