| 中国东北红河国家级自然保护区湿地植被空间格局与环境梯度关系(英文) |
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| 引用本文： | 周德民,栾兆擎,郭逍宇,娄彦景.中国东北红河国家级自然保护区湿地植被空间格局与环境梯度关系(英文)[J].地理学报(英文版),2012,22(1):57-70. |
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| 作者姓名： | 周德民 栾兆擎 郭逍宇 娄彦景 |
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| 作者单位： | Key Lab of Wetland Ecology and Environment, Northeast Institute of Geography and Agricultural Ecology, CAS;Institute of Water Resources and Environment, Jilin University;College of Resources, Environment and GIS, Capital Normal University |
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| 基金项目： | Knowledge Innovation Program of the Chinese Academy of Sciences,No.KZCX2-YW-Q06-03;National Natural Science Foundation of China,No.40871241 |
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| 摘 要： | Quantifying correlation between the spatial patterns of natural wetland plants and environmental gradient gives better understanding of wetland habitats, which is the fundamental for the strategy making on the protection and restoration of natural wetlands. In this study, the spatial patterns of wetland plants and the environmental gradient of wetland habitats were assessed in the Honghe National Nature Reserve (HNNR) in Northeast China, a wetland of international importance on the Ramsar list. Biophysical parameters’ values of wetland plants were obtained by field sampling methods, and wetland mapping at the community scale was completed using remote sensing techniques. Digital delineation of the surface water system, hydrological zoning and wetness index were produced by spatial analysis methods in Geographic Information System. An ecological ordination method and two clustering methods were used to quantify the relationship between the spatial distribution patterns of wetland plants and the corresponding environmental gradients. Such quantitative analyses also present the specific diversity of different types of wetland plants based on the environmental attributes of their habitats. With the support from modern geo-information techniques, the experimental results indicate how four ecotypes of wetland plants spatially transit from forest swamp, shrub wetland and meadow into marsh wetland with increasing wetness index and water table. And they also show how wetland spatial distribution patterns are controlled by an environmental gradient of wetness. Another key finding of this research work is that our results present the exact fundamental differences between marsh and non-marsh plants of 11 wetland plant communities within the core study area. Hence, this case study gives a good sample for better understanding of the complex correlation between the spatial patterns of wetland plants and their environmental attributes using advanced digital analysis methods. It is also useful to show how to integrate geoinformatic techniques with statistical analysis methods based on the field data base.
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| 关 键 词： | wetland plant ecology spatial pattern environmental gradient Honghe National Nature Reserve |
Spatial distribution patterns of wetland plants in relation to environmental gradient in the Honghe National Nature Reserve, Northeast China |
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| Demin Zhou,Zhaoqing Luan,Xiaoyu Guo,Yanjing Lou.Spatial distribution patterns of wetland plants in relation to environmental gradient in the Honghe National Nature Reserve, Northeast China[J].Journal of Geographical Sciences,2012,22(1):57-70. |
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| Authors: | Demin Zhou Zhaoqing Luan Xiaoyu Guo Yanjing Lou |
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| Institution: | 1. Key Lab of Wetland Ecology and Environment, Northeast Institute of Geography and Agricultural Ecology, CAS, Changchun 130012, China; 2. Institute of Water Resources and Environment, Jilin University, Changchun 130026, China; 3. College of Resources, Environment and GIS, Capital Normal University, Beijing 100048, China |
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| Abstract: | Quantifying correlation between the spatial patterns of natural wetland plants and environmental gradient gives better understanding
of wetland habitats, which is the fundamental for the strategy making on the protection and restoration of natural wetlands.
In this study, the spatial patterns of wetland plants and the environmental gradient of wetland habitats were assessed in
the Honghe National Nature Reserve (HNNR) in Northeast China, a wetland of international importance on the Ramsar list. Biophysical
parameters’ values of wetland plants were obtained by field sampling methods, and wetland mapping at the community scale was
completed using remote sensing techniques. Digital delineation of the surface water system, hydrological zoning and wetness
index were produced by spatial analysis methods in Geographic Information System. An ecological ordination method and two
clustering methods were used to quantify the relationship between the spatial distribution patterns of wetland plants and
the corresponding environmental gradients. Such quantitative analyses also present the specific diversity of different types
of wetland plants based on the environmental attributes of their habitats. With the support from modern geo-information techniques,
the experimental results indicate how four ecotypes of wetland plants spatially transit from forest swamp, shrub wetland and
meadow into marsh wetland with increasing wetness index and water table. And they also show how wetland spatial distribution
patterns are controlled by an environmental gradient of wetness. Another key finding of this research work is that our results
present the exact fundamental differences between marsh and non-marsh plants of 11 wetland plant communities within the core
study area. Hence, this case study gives a good sample for better understanding of the complex correlation between the spatial
patterns of wetland plants and their environmental attributes using advanced digital analysis methods. It is also useful to
show how to integrate geoinformatic techniques with statistical analysis methods based on the field data base. |
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| Keywords: | wetland plant ecology spatial pattern environmental gradient Honghe National Nature Reserve |
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