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Proceedings Paper

Dynamic change of landscape patterns of Momoge wetland in the last two decades
Author(s): Guanglei Hou; Hongyan Zhang; Yeqiao Wang; Zhengxiang Zhang; Jianjun Zhao
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Paper Abstract

Wetland degradation and its negative effect have long been considered as a hot yet complicated topic. Therefore, it has significance to research landscape patterns and their dynamic changes. Based on Landsat-5 TM data in 1988, 2001, 2007 respectively, the dynamic change of landscape patterns in last two decades is quantitatively analyzed by conversion matrix, landscape index model and centroid model for Momoge National Natural Reserve. The results are as followed: (1) the area of farmland increased from 29594.934 hm2 to 34002.354hm2 during 1988-2007, but the wetland area decreased from 68635.274 hm2 to 59356.598hm2 simultaneously. (2) Human and climate interference caused the change of landscape patterns. In all three periods, landscape patterns of wetland became more fragmentized and the patch counts were 160, 88, 91 respectively. The SHDI was 1.932, 1.770, 1.772 and SHEI was 0.879, 0806, 0.807 respectively. The entironment of Momoge wetland worsened gradually, but the rate of degradation mitigated in some sort since 2001. (3) Decrease of wetland area resulted in a shift of wetland landscape patterns centroid southeastward by 4454.95 meters.

Paper Details

Date Published: 15 October 2009
PDF: 9 pages
Proc. SPIE 7492, International Symposium on Spatial Analysis, Spatial-Temporal Data Modeling, and Data Mining, 749234 (15 October 2009); doi: 10.1117/12.838658
Show Author Affiliations
Guanglei Hou, Northeast Normal Univ. (China)
Hongyan Zhang, Northeast Normal Univ. (China)
Yeqiao Wang, Northeast Normal Univ. (China)
Zhengxiang Zhang, Northeast Normal Univ. (China)
Jianjun Zhao, Northeast Normal Univ. (China)

Published in SPIE Proceedings Vol. 7492:
International Symposium on Spatial Analysis, Spatial-Temporal Data Modeling, and Data Mining
Yaolin Liu; Xinming Tang, Editor(s)

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