摘要
该文运用基面—径流—形态响应和空间趋势面分析等方法,探讨路南巴江喀斯特流域最高高程(Pa)和最低高程(Lm)的趋势面特征和差异,以及路南石林的空间分布和趋势面的关系。在一次趋势面分析中,最低高程趋势面Lm的倾向较最高高程趋势面Pa向西偏转了12°,Lm趋势面的倾角较Pa陡2°,说明流域的水系和地貌倾斜方向发生了较为明显的变化。二次趋势面分析中,Lm和Pa差别不大,石林主要集中分布在曲面比降较大的大、小石林到蒲草村一带。
The development of stone ferest is closely related to the evolution of the catchment where it lies. The authors,according to the response mechanism of catchment＇ s base level—runoff—morphology and the spatial trend - surface analysis frequently employed in the research of karst hydro - geomorphology, have studied the features of the trend surfaces both for the topmost points （ represented by ＂Pa”） and for the bottommost points （represented by ＂Lm＂） in Lunan＇s Bajiang karst drainage basin,and also the correlation between the spatial distribution of Lunan stone forest and th ＊rend surfaces. In the trend - surface analysis of simple equation, the authors find tnat Lm surface inclines 12 degrees more westwards than Pa surface, and is 2 degrees steeper than the latter, as indicates that there has been an evident change in the spatial pattern of the catchment. In the trend - surface analysis of quadratic equation,there is not too much difference between the surfaces of Lm and Pa,and stone forests get together mainly in a narrow area from Big and Smal! Stone Forests to Pucao Village.
出处
《地理与地理信息科学》
CSSCI
CSCD
北大核心
2005年第4期109-112,共4页
Geography and Geo-Information Science
基金
贵州省自然科学基金资助项目(2002-3067)
国际石林研究中心资助项目(2000-07)
关键词
巴江流域
趋势面分析
喀斯特水文地貌学
路南石林
Bajiang catchment
trend surface analysis
karst hydro- geomorphology
Lunan stone forest
