摘要
以SPOT 4遥感影像和林相图为主要数据源,RS和GIS软件为数据分析平台,借助景观生态学的理论和方法,对额尔古纳国家级自然保护区景观多样性及其空间特征进行定量分析。结果表明:保护区呈现以针阔混交林、针叶林和阔叶林为主体的交错景观格局,其它景观类型呈补丁状镶嵌之中;处于演替前期的森林类型(山杨和白桦林等)的斑块形状构图复杂,破碎化程度较高,景观异质性高,处于演替后期的森林类型(落叶松林等)则刚好相反;景观多样性指数为1.259 3,景观总体的异质性较低,景观生态结构呈现出不合理性和简单化。研究成果可为该自然保护区生物多样性保护、建设管理和景观规划等提供理论依据和科学基础。
Choosing the SPOT 4RS image and forest map as the main data,using RS and GIS and the landscape ecological theory,the landscape diversity and its spatial characteristics in Argun National Nature Reserve of Inner Mongolia were quantitatively analyzed.The study results showed that the present mixed landscape was dominated by coniferous and broad-leaved mixed forest,coniferous forest and broad leaved forest,others landscape types mounted this landscape pattern as patches;the forest types with the early succession periods,such as Populus davidianaforest and Betula platyphyllaforest,was the complicated patch shape structure,highly fragmented and higher heterogeneity,on the contrary for the forest types with the latter succession periods,such as Larix gmelinii forest.The landscape diversity index of the entire study region was 1.259 3,which showed a lower heterogeneity and the irrational and simply landscape ecological structure of the whole landscape pattern.The research results can provide theoretical and scientific basis for biodiversity conservation,construction management and landscape planning of Argun River National Nature Reserve.
出处
《水土保持研究》
CSCD
北大核心
2013年第4期213-217,319,共5页
Research of Soil and Water Conservation
基金
国家自然科学基金项目(30170775
30671702)
额尔古纳国家级自然保护区生物多样性研究(20122300010987)
关键词
额尔古纳自然保护区
森林景观
景观多样性
空间特征
Argun Nature Reserve
forest landscape
landscape diversity
spatial characteristics
作者简介
龚文峰（1976-），男，河南南阳人，副教授，博士，主要研究方向：景观生态和资源环境与监测。E—mail：gwflOl@163．com
通信作者：赵敏（1964-），男，黑龙江富锦人，教授，博士，主要研究方向：微生物和环境生态。Email：82191513@163．com
