摘要
河北北部、内蒙古东部森林 草原交错带的森林景观主要有白桦林、山杨林、云杉林、蒙古栎林和榆树疏林。森林斑块的数量在森林 草原交错带的森林草甸区最多 ,其次是森林带 ,再次是森林 草原交错带的草甸草原区 ,草原带没有森林斑块。从森林带到森林 草原交错带 ,森林斑块变小、森林景观破碎化程度提高。森林 草原交错带森林景观的形成是气候变化和现代气候、地形。
There are forest landscapes such as Betula platyphylla,Populus davidiana,Picea mongolica,Quercus mongolica and Ulmus pumila within the forest-steppe ecotone in northern Hebei Province and eastern Inner Mongolia in China.The number of forest patches in forest-meadow region is more than that in forest zone and in meadow -steppe region.From forest zone to the ecotone,forest patch size decreases while forest fragmentation increases.Forest landscapes of forest-steppe ecotone are resulted from global climatic change,landforms,fire and human activities.
出处
《生态学杂志》
CAS
CSCD
北大核心
2004年第3期11-15,共5页
Chinese Journal of Ecology
基金
国家自然科学基金资助项目 ( 3 93 70 5 61)
