雅鲁藏布江米林段爬坡沙丘形态演变及移动规律

褚佳琦, 严平, 苏志珠, 袁文杰, 王晓旭, 张潇, 赵华刚

Morphological evolution and migration characteristics of a climbing dune in Mainling Great Valley section of Yarlung Zangbo River

Jiaqi Chu, Ping Yan, Zhizhu Su, Wenjie Yuan, Xiaoxu Wang, Xiao Zhang, Huagang Zhao

表4 沙丘形态参数的相关性分析

Table 4 Correlation analysis of morphological parameters of sand dune

类型 参数 线性关系 相关系数 爬坡沙丘整体形态 投影面积与爬升长度 SS = 783.08L - 583720.00 R2 = 0.29 投影面积与最大宽度 SS = 446.22Wmax + 104360.00 R2 = 0.81 投影面积与最小宽度 SS = 251.87Wmin + 233759.00 R2 = 0.04 爬升长度与最大宽度 L = 0.14Wmax + 1036.90 R2 = 0.16 爬升长度与最小宽度 L = 0.20Wmin + 1059.30 R2 = 0.05 沙丘最宽值与最窄值 Wmax = -0.39Wmin + 415.58 R2 = 0.02 沙丘表层沙垄形态 脊线总长度与沙垄个数 Lr = 366.35N - 1954.90 R2 = 0.92 脊线总长度与平均长度 Lr = 27.01lr - 2455.70 R2 = 0.94 脊线总长度与垄间距 Lr = -187.05d + 10380.00 R2 = 0.99 脊线总长度与“Y”形接头个数 Lr = 209.51M + 3356.40 R2 = 0.68 脊线平均长度与沙垄个数 lr = 366.35N - 1954.90 R2 = 0.83 脊线平均长度与垄间距 lr = -0.14d + 67.47 R2 = 0.90 脊线平均长度与“Y”形接头个数 lr = 6.69M + 220.19 R2 = 0.54 垄间距与沙垄个数 d = -1.98N + 66.31 R2 = 0.95 垄间距与“Y”形接头个数 d = -1.08M + 37.36 R2 = 0.65 沙垄个数与“Y”形接头个数 N= 0.49M + 14.89 R2 = 0.55