乐业-凤山世界地质公园岩溶地貌景观特征与价值分析

Analysis on features and values of karst landscape in Leye-Fengshan Global Geopark

乐业-凤山世界地质公园发育在"孤岛"状的碳酸盐岩区上,以高峰丛深洼地、大洞穴、大峡谷、天坑群、天窗群、天生桥、地下河为特色,景观类型丰富、系统完整、珍稀典型,观赏价值与科研价值极高。公园内不同地貌景观由于成因差异而各具特色,经定性与定量评价:天坑群、天窗群是世界级品牌景观,为公园五级地貌景观;天生桥、峡谷是公园重要景观,为公园四级地貌景观;峰丛洼地、峰丛谷地、坡立谷、洞穴景观是公园地貌景观的重要组成部分,为公园三级地貌景观;穿洞、岩溶泉、地下河景观是公园地貌景观的重要补充,为二级地貌景观;落水洞、竖井是公园点缀地貌景观,为公园一级地貌景观。

Developed in the typical isolated island-liked karst region, the karst landscape in the Leye-Fengshan Global Geopark is featured by high fengcong, large caves, large karst gorges, large tiankeng group, karst windows group, large natural bridges and subterranean rivers. It is not only abundant in landscape types, but also complete in system and rare in landforms, which are valuable for sciences and sightseeing. According to genesis analysis and qualitative and quantitative evaluation on karst landscape in the geopark, five levels of landscape are classified： the top is the tiankeng group and karst windows group; the fourth is the natural bridges and karst gorges; the third is the high fengcong （doline and valley）, poljes and large caves, the second is the through caves, karst springs and subterranean rivers, the bottom is shafts and sinkholes, which are the interspersed landscapes in the geopark.