干旱区生态环境知识资源中心(Arid): 黄土高原森林植被景观的特征分析

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	黄土高原森林植被景观的特征分析
其他题名	The Characteristics of Forest Landscape in the Loess Plateau, China
	张金屯 1; 李斌 2
ISSN	1008-2786
出版年	2006
卷号	24 期号:1 页码:1-6
中文摘要	用1：50万森林类型图为信息源，以GIS为手段，对黄土高原地区森林景观类型斑块的大小、形状以及空间特征进行了分析。结果表明：黄土高原地区27类森林总面积仅64980．7km^2，共有斑块数5890个，林斑平均面积较小，且分布不均，森林景观破碎化程度较高。森林景观以华北落叶松林、山杨林、油松林、辽东栎林等为优势类型。黄土高原森林景观类型的形状指数值都比较大，说明森林斑块的形状明显偏离于圆形和方形，多为狭长的不规则形，其斑块的边界率都比较高。不同类型森林分维数变化较大，这也表明黄土高原森林景观破碎化程度较高，景观异质性较大。
英文摘要	Loess Plateau is located between humid, semi-humid area and the northwest arid area of China. Because of the influence of drought and windy climate and the poor soil structure, the soil erosion and land desertification are the serious problems in Loess Plateau, and its ecological environment is sensitive to disturbance. The bad-cireulation of vegetation destroying soll and water lossland desertification is dominant process in this area. Present Loess Plateau is mainly consisted of hills and gullies just due to this process, and its vegetation landscape is very special in China. It is important to study the characteristics of forest vegetation landscape in the management of Loess Plateau. Based on the information of Loess Plateau Forest Map （ 1 ： 500 000）, this paper studies the features of patch size, patch shape and their spatial distribution of forest landscape by use of GIS techniques. The results show that there are 5 980 patches with a total area of 64 980.7 km^2 for 27 vegetation formations in Loess Plateau. That the average patch size is comparatively small and their distribution is uneven suggests that the heterogeneity of forest landscape is high. The forest types of Form. Larix principis-rupprechtii, Form. Pinus tabulaeformis, Form. Quercus liaotungensis, Form. Populus davidiana etc. are dominant in forest landscape. The values of shape indices of forest landscape are comparatively great, which illustrates that the shapes of forest patches are obviously deviated from circle and squire, and perform as irregular and long-narrow shapes with great length of patch boundary. The fractal dimensions of different forest patches are varied greatly, which further indicate that the heterogeneity of forest landscape in Loess Plateau is great.
中文关键词	森林植被 ; 景观特征 ; 植被恢复 ; 黄土高原
英文关键词	Forest vegetation characteristics of landscape vegetation recovery Loess Plateau
语种	中文
国家	中国
收录类别	CSCD
WOS类目	FORESTRY
WOS研究方向	Forestry
CSCD记录号	CSCD:2253056
来源机构	北京师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/220005
作者单位	1.北京师范大学生命科学院, 北京 100875, 中国; 2.中北大学环境与安全工程系, 太原, 山西 030051, 中国
推荐引用方式 GB/T 7714	张金屯,李斌. 黄土高原森林植被景观的特征分析[J]. 北京师范大学,2006,24(1):1-6.
APA	张金屯,&李斌.(2006).黄土高原森林植被景观的特征分析.,24(1),1-6.
MLA	张金屯,et al."黄土高原森林植被景观的特征分析".24.1(2006):1-6.

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