喀斯特环境移民区适应性景观生态设计

Adaptable Landscape Ecology Design for Karst Environmental Emigration Region

根据广西喀斯特环境移民迁出区生态重建与经济发展的需求,以设计适应西南喀斯特峰丛洼地特点的土地生态结构与景观优化方案为目标,通过案例研究,在评价典型样区的生态适宜性与土壤肥力条件的基础上,结合IKNOS高分辨率卫星图像、历史航空影像,综合集成景观格局研究、农户参与设计与结构优化分析3种设计途径,提出了适应性景观生态设计的初步框架。案例分析表明,该方法具有适应性、参与性和灵活性的特点,符合适应性生态系统管理的需求,为实现小尺度景观安全格局设计提供了依据。

According to the necessities of ecological reconstruction and economic development in karst environmental emigration areas of Guangxi, the objective of this paper was to design the land ecological structure and landscape optimal program, which was suitable for the characteristics of the peak-cluster depression area in karst region of southwest China. Based on ecological suitability and soil fertility in typical sub-area, a preliminary framework of adaptable landscape ecology design was put forward through a case study. The method used in this paper was established by integrating the three designing approaches of landscape pattern investigation, farm＇s participation design and structural optimization analysis, and combined with various data from high-resolution satellite and previous aerial remote images. This method for landscape ecology design incorporates adaptability, participancy and flexibility, and therefore meets the requirements for adaptable ecosystem management and can serve as technical reference to ecological safety pattern design of small-scale landscape.