Spatial Analysis on Wetland Restoration Along Yangtze River in Anqing City, Anhui Province

DONG Zhangyu; YANG Xuezhi; WANG Zongming; ZHOU Fang; AI Jiaqiu; JIA Lu

doi:10.13961/j.cnki.stbctb.2017.06.030

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Spatial Analysis on Wetland Restoration Along Yangtze River in Anqing City, Anhui Province

- Spatial Analysis on Wetland Restoration Along Yangtze River in Anqing City, Anhui Province
- Bulletin of Soiland Water Conservation Vol. 37, Issue 6, Pages: 178-183(2017)
- 作者机构：
  
  1. 合肥工业大学计算机与信息学院,安徽,合肥,230009
  2. 工业安全与应急技术安徽省重点实验室,安徽,合肥,230009
  3. 中国科学院东北地理与农业生态研究所,吉林,长春,130102
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2017.06.030
  CLC：
- Published：2017
- 稿件说明：
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DONG Zhangyu, YANG Xuezhi, WANG Zongming, et al. Spatial Analysis on Wetland Restoration Along Yangtze River in Anqing City, Anhui Province[J]. Bulletin of Soiland Water Conservation, 2017, 37(6): 178-183.
DOI：

DONG Zhangyu, YANG Xuezhi, WANG Zongming, et al. Spatial Analysis on Wetland Restoration Along Yangtze River in Anqing City, Anhui Province[J]. Bulletin of Soiland Water Conservation, 2017, 37(6): 178-183. DOI： 10.13961/j.cnki.stbctb.2017.06.030.

摘要

[目的

]

对安徽省安庆市沿江沼泽湿地区的沼泽湿地生态系统恢复进行空间分析，为沼泽湿地生态环境的改善提供科学依据。[方法

]

针对安庆市沿江沼泽湿地退化严重的现状，在分析区域功能特征的基础上，构建沼泽湿地空间恢复模型，并实现区域内沼泽湿地空间恢复，继而得到沼泽湿地优先、次优先恢复以及不可恢复级别。最后从整体景观效果和沼泽湿地功能两个恢复角度评价沼泽湿地恢复效果。[结果

]

安庆市沿江沼泽湿地恢复面积为5.78×10

，在现有沼泽湿地面积基础上提高了35.78%。以耕地为主，占沼泽湿地恢复面积的91.43%。其中，优先恢复面积为2.92×10

，主要分布于研究区的中北部地区；次优先沼泽湿地恢复面积为2.86×10

。不可恢复面积为3.61×10

，主要为水域、建筑用地等不可变更区域。[结论

]

经过恢复效果验证，从景观整体格局分析可知，沼泽湿地恢复后，研究及区域内沼泽湿地的斑块数量减少，而平均斑块密度增加，聚集度指数增加，景观多样性指数上升，说明沼泽湿地恢复实施后，景观格局更有利于朝着沼泽湿地生态功能的发挥，对维护区域生态安全具有很大的现实意义。

Abstract

[Objective] Conducting a spatial analysis on wetlands ecosystem restoration along Yangtze River in Anqing City

Anhui Province

in order to provide scientific basis for improving the wetland ecological environment. Wetland restoration is critical to manage these conditions.[Methods] In this study

hydrological regulation and habitat suitability

as the most important functions of wetland

were selected to identify suitable wetland restoration sites. Using these two function layers

together with the spatial analysis function of geographic information system(GIS) and remote sensing(RS) image data

we identified and prioritized suitable sites for wetland restoration in the study area. Those areas which have high hydrological regulation and are good or fair habitat suitability for water birds

can support wetland restoration. The potential sites were prioritized in terms of patch size and proximity of natural wetlands and water bodies.[Results] We obtained two priority classes(the high one and a low one) of wetland restoration in a spatial scale. The results of this study showed that the areas with high and low priority classes for wetland restoration are 82 628 and 247 039 hm2

respectively

which account for 1.23% and 3.67% of the total study area.[Conclusion] The high-priority class areas would be used for the wetland restoration. Besides the wetland restoration in the northeast region

wetland landscape pattern is also more advantageous for wetland ecological function. It will provide scientific basis for the implementation of northeast region wetland restoration.

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Keywords

references

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