中国岩溶2011，Vol.30Issue(2)：138-144,7.
云南石林石柱表面水平凹槽特征及其环境意义
The dissolved horizontal groove on stone pillar in Yunnan Stone Forest and its environmental sense
摘要
Abstract
The study focuses on the dissolved horizontal groove around the stone pillars higher than 5 m in Yunnan Stone Forest. The height, width, elevation, latitude and longitude of the stone pillars at different topography sites and different elevation are measured. Further on, the number of layers of the soil moisture dissolved groove and the height of each layer to ground surface are metered. The statistics shows that the grooves are divided into two kinds, water eroded and soil moisture dissolved grooves, according their formation. The length of water eroded grooves are longer, about 1. 77 m in average, but the soil moisture dissolved ones are shorter, about 1. 33 m in average. The depth of water eroded grooves are deeper, about 0. 45 m in average, than the soil moisture dissolved ones (about 0. 40 m in average). The average width of water eroded grooves is about 0. 25 m, and that of soil moisture dissolved is wider, about 1. 13 m. The average height of the stone pillar is 12. 53 m with the height of the stone pillars being 14. 0 m at the bottom of the depression, 12. 3 m on the slope and 11. 3 m on the hill-top dividedly. There are 4. 95 layers of groove in average totally, but 5. 0 layers at the bottom of the depression, 4. 9 layers on the slope and 4. 7 layers on the hill top dividedly. The height of the one to three levels' grooves to the ground is 2. 00 m, 4. 09 m and 6. 20 m dividedly. Upon inspection, there is significant difference in width between the two different genetic types of grooves. The length, width and depth of soil moisture dissolved groove decrease with elevation, but that of water eroded groove have nothing to do with elevation. There are no obvious differences in the height, number of layers and altitude in the grooves at different topography sites, proving that there was neither strong folding movement nor tilting uplift-falling movement but consistent geologic structure conditions during the formation of the stone forest that leading to uniform karstification.关键词
土蚀凹槽/水蚀凹槽/地形部位/海拔高度/云南石林Key words
soil moisture dissolved groove/ water eroded groove/ topography sites/ altitude/ Yunnan Stone Forest分类
天文与地球科学引用本文复制引用
李才库,陈余萍,徐贵生,鞠大伟,李艳美..云南石林石柱表面水平凹槽特征及其环境意义[J].中国岩溶,2011,30(2):138-144,7.基金项目
国家自然科学基金项目“喀斯特退化地质生态系统保护地的景观恢复机理研究”(40762004) （40762004）
