中文摘要：

西南喀斯特山区峰丛洼地特殊的地形地貌特征,造成了物质能量循环及环境的封闭性,生态环境脆弱性强,加之区域社会经济发展落后,农村经济主要以传统种植业为主,农业生产活动对区域生态环境及景观有重要的影响作用。对农业生产活动及其生态效应进行探讨,以揭示其对喀斯特峰丛洼地自然景观格局演化的影响作用,有助于喀斯特峰丛洼地区生态环境的恢复与重建。通过野外实地考察及相关文献整理,尝试从农业生产活动对喀斯特峰丛洼地系统中的水文系统、植被系统、土壤系统的影响效应入手,探讨农业生产活动对喀斯特峰丛洼地自然景观格局分布的影响。结果表明,峰丛洼地农业生产活动与喀斯特峰丛洼地景观变化具有显著的相关性联系,农业生产活动对峰丛洼地景观格局的作用机制,主要是通过原始植被的破坏阻断了峰丛洼地表层岩溶水循环路径及改变了表层岩溶带的产流模式造成的,最终导致峰丛洼地地表植被系统的稳定性弱化,损坏了景观的系统性,造成景观破碎化,使景观均值性减弱,稳定性下降进而造成景观的逆向演替甚至石漠化。

英文摘要：

Because of the special terrain features in Karst peak and cluster depression of Karst mountainous areas, matter and energy cycle and natural environment are close. This also led to a vulnerable ecological environment in this area. In addition, it is an underdeveloped area in economy; livelihood mainly relies on traditional planting in the rural, so the agricultural production activities have an important influence on the regional ecological environment and landscape. Thus, Discussions on the agricultural production activities and its ecological effect will helps to reveal the effect of agricultural production activities acts on regional ecological environment and landscape. Further, the discussions will helps to ecological environment recover in Karst peak and cluster depression areas. This article aims to reveal the effect of agricultural production activities acts on landscape pattern in Karst peak and cluster depression areas. In order to achieve this goal, the effects of agricultural production activities influence of hydrological system, vegetation system, and soil system in Karst peak cluster depression system were studied, by means of field investigation and relevant literature sorting. The results show that in karst peak cluster depression area, the relationship between agricultural production activities and landscape change is obvious. The mechanism of agricultural production activities acts on landscape pattern mainly through blocked epikarst water cycle path by the means of original vegetation destruction changed the surface karst water cycle paths and the epikarst runoff model. These eventually lead to stability loosening of the peak cluster depression vegetation system, and systematic destruction of landscape. More ever, these will lead to the fragmentation of landscape, decreasing the heterogeneity and stability of landscape, causing the landscape reverse succession and even rocky desertification.