| 三江平原沼泽湿地格局变化及影响因素分析 |
| |
| 引用本文： | 刘吉平,杜保佳,盛连喜,田学智.三江平原沼泽湿地格局变化及影响因素分析[J].水科学进展,2017,28(1):22-31. |
| |
| 作者姓名： | 刘吉平 杜保佳 盛连喜 田学智 |
| |
| 作者单位： | 1.吉林师范大学旅游与地理科学学院, 吉林 四平 136000; |
| |
| 基金项目： | 国家自然科学基金资助项目（41071037）；教育部新世纪优秀人才支持计划资助项目（NCET-12-0730） |
| |
| 摘 要： | 为揭示湿地变化剧烈区湿地格局变化过程及规律，利用GIS和RS技术，结合地学信息图谱与空间自相关方法，对1954-2010年三江平原沼泽湿地格局变化及其影响因素进行研究。结果表明:1954-2010年三江平原沼泽湿地面积逐渐减少，88.7%的沼泽湿地丧失，湿地斑块数量呈先增加后减少的趋势；三江平原沼泽湿地的空间聚集性逐渐降低，且空间格局由集中连片分布转变为零星散布；降雨量减少、气温升高及径流量减少，是造成沼泽湿地减少的主要原因之一，地形地貌影响到沼泽湿地的丧失程度，以海拔20~80 m的沼泽湿地面积丧失最多。三江平原沼泽湿地的丧失同时受农业开发、居民点分布、湿地保护区建设影响，距居民点越近，沼泽湿地面积丧失呈指数增加，距保护区越近，沼泽湿地面积丧失越多。
|
| 关 键 词： | 沼泽湿地 格局变化 地学信息图谱 关联模式 三江平原 |
| 收稿时间： | 2016-02-02 |
Dynamic patterns of change in marshes in the Sanjiang Plain and their influential factors |
| |
| LIU Jiping,DU Baojia,SHENG Lianxi,TIAN Xuezhi.Dynamic patterns of change in marshes in the Sanjiang Plain and their influential factors[J].Advances in Water Science,2017,28(1):22-31. |
| |
| Authors: | LIU Jiping DU Baojia SHENG Lianxi TIAN Xuezhi |
| |
| Institution: | 1.College of Tourist and Geoscience, Jilin Normal University, Siping 136000, China;2.Key Laboratory of Wetland Ecology and Vegetation Restoration, Ministry of Environmental, School of Environment, Northeast Normal University, Changchun 130024, China |
| |
| Abstract: | To explore patterns of dynamic change in a region in which severe changes to wetlands have occurred, we studied patterns of change among marshes in the Sanjiang Plain between 1954 and 2010 using remote sensing and GIS combined with Geo-information Tupu and spatial autocorrelation methods. Marsh area within the Sanjiang Plain gradually decreased between 1954 and 2010, losing around 88.7% of its total area. The number of wetland patches within the plain increased at first and then decreased slightly. The spatial clustering of marshes in the region also decreased gradually from concentrated to sporadic distribution. Additionally, analysis of the results determined that less rainfall, higher temperatures, and a decrease in runoff were main contributors to the decrease in the Sanjiang Plain marsh area. Geography and elevation also affected the degree of marsh area loss; marshes at an elevation of 20-80 m above sea level experienced the most dramatic decline. Decreases in marsh area in the Sanjiang plain also appear to be affected by agricultural development, settlement construction, wetland protection policies and the construction of reserves as well as encroaching residential areas. The degree of marsh area loss appears to increase exponentially according to distance from protected areas:the closer the marsh area is to a protected area, the greater the loss will be. |
| |
| Keywords: | marsh dynamic patterns of change geo-information Tupu correlation patterns Sanjiang Plain |
|
| 点击此处可从《水科学进展》浏览原始摘要信息 |
| 点击此处可从《水科学进展》下载免费的PDF全文 |
|
