陇东合水县塬梁峁地貌分类及演化

袁爽, 许强, 赵宽耀, 王绚, 王崔林

Geomorphological classification and evolution of plateau-beam-loess hills in Heshui county of the east Gansu province

YUAN Shuang, XU Qiang, ZHAO Kuanyao, WANG Xuan, WANG Cuilin

表2 黄土地貌单元分类指标

Tab. 2 Classification indicators of loess geomorphic units

分类 似圆度 周长面积比 平均坡度 边界维数 边界临接指数 地貌 峁 1.05~1.10 23.0~45.0 - 1.26~1.30 0 似圆峁 1.11~1.20 22.0~45.0 - 1.27~1.31 0 椭圆峁 1.21~1.35 24.0~40.0 - 1.28~1.33 0 线性峁 1.36~1.53 18.0~45.0 6.2~14.3 1.28~1.34 0 不规则峁 梁 1.25~1.53 20.0~35.0 7.2~16.1 1.27~1.33 0~0.3 短粗梁 1.54~1.90 18.0~50.0 - 1.28~1.40 - 长窄梁 1.91~2.88 15.1~32.3 5.2~14.6 1.30~1.38 - 树杈梁 塬 1.70~3.00 11.7~15.0 3.0~4.8 1.29~1.36 0 残塬 3.81~5.12 6.7~11.2 - 1.37~1.42 0 大塬