金沙江下游元谋盆地冲沟沟头弯曲度的分形研究

Fractal Study on Bending of Gully's Head in Yuanmou Basin on Lower Reaches of Jinsha River

金沙江下游元谋盆地广泛分布的元谋组地层为粘土层与砂土层互层 ,冲沟发育。冲沟蚕食耕地 ,造成土地劣化 ,对土地资源危害很大。本文运用分形理论的概念和方法 ,对元谋盆地的 9条冲沟进行分形弯曲度计算 ,分析了冲沟的空间形态。

Alternate sand and mad strate of Yuanmou group are widely distributed and the gullies are developed in Yuanmou basin on lower reaches of Jinsha River. The gully erodes the farmland ,forms the erosion bad land and breaks the land resources. This articles has calculated the fractal bending for nine gullies in Yuanmou basin by the concept and way of fractal theory. Then space filling, degree of development and influence factors of gully are analysed.