| 基于3S技术的野鸭湖湿地系统景观格局演变研究 |
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| 引用本文： | 胡盼盼,胡卓玮,魏徕.基于3S技术的野鸭湖湿地系统景观格局演变研究[J].地理信息世界,2017,24(3). |
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| 作者姓名： | 胡盼盼 胡卓玮 魏徕 |
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| 作者单位： | 首都师范大学资源环境与旅游学院,北京100048;三维信息获取与应用教育部重点实验室,北京100048;城市环境过程与数字模拟国家重点实验室培育基地,北京100048 |
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| 基金项目： | 国家自然科学基金项目，国家科技支撑计划项目 |
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| 摘 要： | 野鸭湖湿地自然保护区是北京最大的湿地自然保护区,也是唯一的湿地鸟类自然保护区,因此,选择野鸭湖研究城市湿地景观格局演变特征具有典型意义。以野鸭湖自然保护区为研究对象,分析了1999年、2004年、2009年和2014年4个时期野鸭湖湿地系统景观格局演变过程,并根据景观指数分析其动态变化趋势。研究结果表明:①野鸭湖湿地面积在1999~2004年间逐渐减少,之后逐年恢复,至2014年湿地面积总数已恢复到1999年的水平,但水体的面积仍缩减一半,主要恢复的是草甸湿地和疏林湿地。②野鸭湖湿地景观格局的变化特征主要表现为:景观破碎度增加,景观形状更加复杂,景观多样性和异质性增加而优势度降低。③野鸭湖湿地斑块类型呈现如下特征:耕地连片分布,耕地开垦力度减缓;草甸湿地成片增长且优势度逐渐明显,形状复杂;水体分布聚集,2014年出现恢复现象;疏林湿地面积不断增长,呈现破碎化现象;建筑用地面积也略微增长,但分布分散;滩涂湿地面积最小,形状简单。
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| 关 键 词： | 湿地景观 景观格局指数 野鸭湖自然保护区 |
3S-based Study on Landscape Pattern of Wild Duck Lake Wetland System |
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| HU Panpan,HU Zhuowei,WEI Lai.3S-based Study on Landscape Pattern of Wild Duck Lake Wetland System[J].Geomatics World,2017,24(3). |
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| Authors: | HU Panpan HU Zhuowei WEI Lai |
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| Abstract: | The Wild Duck Lake Wetland Nature Reserve is not only the largest wetland nature reserve in Beijing,but also the unique wetland bird nature reserve.Therefore,it is choosen as a typical case to study the evolution of urban wetland landscape pattern.Based on the Wild Duck Lake Wetland Nature Reserve,the evolution of the landscape pattern in 1999,2004,2009 and 2014 was analyzed,and the dynamic trends were analyzed according to the landscape index.The results show that:1) The wetland area is gradually reduced from 1999 to 2004,and later on the annual wetland area has been restored to the level of 1999,but the area of water is reduced by half,mainly to restore the meadow wetlands and shrub wetlands.2) The landscape pattern changing characteristics mainly are as follows:landscape fragmentation increases and the shapes get more complex,landscape diversity and heterogeneity are increasing and dominance decreases.3) The types of wetland patches are as follows:the distribution of cultivated land is contiguous and the reclamation of cultivated landis slowdown.Meadow wetland has grown and the dominance is more and more obvious.The distribution of water is aggregated,and there is a phenomenon of recovery in 2014.The area of the wetland is increasing and showing the phenomenon of fragmentation.Construction land increases slightly and is in decentralized state. |
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| Keywords: | wetland landscape landscape pattern index Wild Duck Lake Nature Reserve |
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