五大连池生物圈保护区景观格局分析

Landscape pattern analysis in Wudalianchi Biosphere Reserve

五大连池世界生物圈保护区具有原生、完整的植被生态演替过程,是研究火山植被演替、生物多样性系统发育的理想场所,对其开展景观生态学研究有一定的科学价值。本文通过景观格局指数分析,得到以下结论:(1)旱地是本区域的景观基质,其中位于核心区、缓冲区的旱地需要有计划的退耕还林、还草;(2)自然景观类型中的有林地、高覆盖草地破碎化程度相对较高,需加以保护和恢复;(3)裸岩石质地是本区域的核心资源,其破碎化不明显,其内部、外部连通性较好,仍需继续加强保护;(4)保护区人为干扰强度仍较大,需要继续开展保护、恢复工作。

Wudalianchi World Biosphere Reserve has primary vegetation cover and complete ecological succession process. It is an ideal place for researches of vegetation succession and volcano biodiversity system development, providing great scientific value for landscape ecology studies. In this paper, we obtained the following conclusions through the analysis of the landscape pattern index： 1） the dry land is the landscape matrix of the region and the dry-lands located in the core and buffer zones need strategically recovered to original vegetation covers; 2） the forest and grassland with high degree of fragmentation need to be protected and restored; 3） bare rocks, the core resources in thisregion, although are not obviously fragmented and in good connectivity condition, continuous protection cannot be ignored; 4）due to the high intensity of human disturbance in the protected area, further protection and restoration need to proceed.