Evolution of Forest Landscape Patter as Affected by “Grain for Green” Project in Jinzhai County, Eastern Anhui Province

GU Zhe-yan; ZHANG Jin-chi; WANG Chun-lin; LIN Jie; LIU Xin; HAN Cheng

doi:10.13961/j.cnki.stbctb.2014.01.057

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Evolution of Forest Landscape Patter as Affected by “Grain for Green” Project in Jinzhai County, Eastern Anhui Province

- Evolution of Forest Landscape Patter as Affected by “Grain for Green” Project in Jinzhai County, Eastern Anhui Province
- Bulletin of Soiland Water Conservation Vol. 33, Issue 1, Pages: 149-153(2014)
- 作者机构：
  
  南京林业大学森林资源与环境学院,江苏,南京,210037
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2014.01.057
  CLC：
- Published：2014
- 稿件说明：
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GU Zhe-yan, ZHANG Jin-chi, WANG Chun-lin, et al. Evolution of Forest Landscape Patter as Affected by “Grain for Green” Project in Jinzhai County, Eastern Anhui Province[J]. Bulletin of Soiland Water Conservation, 2014, 33(1): 149-153.
DOI：

GU Zhe-yan, ZHANG Jin-chi, WANG Chun-lin, et al. Evolution of Forest Landscape Patter as Affected by “Grain for Green” Project in Jinzhai County, Eastern Anhui Province[J]. Bulletin of Soiland Water Conservation, 2014, 33(1): 149-153. DOI： 10.13961/j.cnki.stbctb.2014.01.057.

摘要

以1986

1996

2011年的TM影像为数据源

利用基于GIS和遥感技术的景观指数分析法研究皖西退耕还林重点地区--金寨县的森林景观格局演变特征及其内在驱动机制。结果表明

25 a间

金寨县林地面积持续增加

耕地面积不断减少

其他景观类型面积的增减幅度不同。1986-1996年

斑块密度、分形维数、香农均匀度等指标发生负向变化

景观异质性速度加快

景观格局复杂化和破碎化形势严峻;1996-2011年

退耕还林工程实施后

各项指标发生正向变化

景观格局破碎化形势得到有效遏制

景观格局向规则化和均衡化转变

景观结构明显优化。自然地理环境和退耕还林工程的实施是该县森林景观格局演变特征形成的主要驱动力。

Abstract

Evolutional characteristics of forest landscape structure and its internal driving mechanisms in Jinzhai County

Eastren Anhui Province from 1985 to 2011 were studied by taking TM images of 1986

1996 and 2011 as data sources and using landscape indices analysis based on GIS and RS technology. Results showed that Jinzhai's woodland area continued to grow

arable land continued to decrease

and other landscape types increased or decreased by different amplitudes in the past 25 years. From 1986 to 1996

patch density

fractal dimension and Shannon evenness index changed negatively

the speed of landscape heterogeneity accelerated

and landscape pattern was in the severe situation of complex and fragmentation. From 1996 to 2011

after the "Grain for Green" project

the indicators changed positively

the situation of landscape fragmentation was effectively curbed

and landscape pattern turned to equalization and regularization. As a result

landscape structure has been optimized obviously. Natural geographical environment and the implementation of the "Grain for Green" project are the main driving forces for the formation of the evolutional characteristics of forest landscape pattern.

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