| 天然林森林资源的景观分析 |
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| 引用本文： | 陈为,李长胜,王殿文. 天然林森林资源的景观分析[J]. 防护林科技, 2007, 0(1): 43-46 |
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| 作者姓名： | 陈为 李长胜 王殿文 |
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| 作者单位： | 东北林业大学,黑龙江,哈尔滨,150040;黑龙江省齐齐哈尔林业学校 |
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| 摘 要： | 为了研究天然林森林资源的景观变化,文章使用了景观空间格局分析软件包FRAGSTATS,主要计算了景观形状指数、平均形状指数、面积加权斑块平均形状指数、双对数破碎度、斑块平均分维度、面积加权斑块平均破碎度、香农多样性指数、香农均匀度指数、辛普森多样性指数、辛普森均匀度指数、修正辛普森均匀度指数、修正辛普森多样性指数。结果表明:面积加权斑块平均形状指数、双对数破碎度、斑块平均破碎度略有下降,也就是说,斑块(小班)形状变化不大。森林景观的变化要滞后资源的变化。各种斑块的多样性指数变化不明显。斑块丰富度和斑块丰富度密度大幅上升。
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| 关 键 词： | 森林资源 景观分析 斑块 |
| 文章编号： | 1005-5215（2007）01-0043-04 |
| 收稿时间： | 2006-10-16 |
| 修稿时间： | 2006-10-16 |
Landscape Analysis of Forest Resources for Natural Forest |
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| CHEN Wei,LI Chang-sheng,WANG Dian-wen. Landscape Analysis of Forest Resources for Natural Forest[J]. Protection Forest Science and Technology, 2007, 0(1): 43-46 |
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| Authors: | CHEN Wei LI Chang-sheng WANG Dian-wen |
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| Affiliation: | 1. Northeast Forestry University, Harbin, 150040, Heilongjiang, China; 2. Qiqihar Forestry Specialized School |
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| Abstract: | To study the landscape change of natural forest resources,FRAGSTATS package of landscape space pattern was used.Landscape Shape Index,Mean Shape Index,Area-Weighted Mean Shape Index,Double Log Fractal Dimension,Mean Patch Fractal Dimension,Area-Weighted Mean Patch Fractal Dimension,Shannon's Diversity Index,Shannon's Evenness Index,Simpson's Diversity Index,Simpson's Evenness Index,Modified Simpson's Evenness Index and Modified Simpson's Diversity Index were calculated.The results showed that Area-Weighted Mean Shape Index,Double Log Fractal Dimension and Mean Patch Fractal Dimension decreased slightly,that is the shape of patch(subcompartment) didn't change a lot.The change of forest landscape was later than that of forest resource.The change of diversity index of patches was not obvious.But Relative Patch Richness and Patch Richness Density increased rapidly. |
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| Keywords: | forest resources landscape analysis patch |
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