| 河南沿黄湿地景观格局及其动态 |
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| 引用本文： | 梁国付,丁圣彦.河南沿黄湿地景观格局及其动态[J].地理学报(英文版),2004,14(3):339-348. |
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| 作者姓名： | 梁国付 丁圣彦 |
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| 作者单位： | CollegeofEnvironmentandPlanning,HenanUniversity,Kaifeng475001,China |
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| 基金项目： | Human Geography provincial keystone subject of Henan University |
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| 摘 要： | By using GIS and remote sensing techniques, the paper discusses how human activities have changed along the Yellow River in Henan province, China and how these altered activities have influenced the wetland landscape pattern change from 1987 to 2002. Results show that the total area of the wetland reduces dramatically compared to 1987, the total area of wetland reduces by 19.18%, the number of the patches in 2002 increases by 21.17%, the density increases by 50%, and the total perimeter increases by 1,290,491 m. Disturbed by human activities, landscape diversity index decreases from 1.1740 in 1987 to 0.9803 in 2002. During the last 20 years, the total area of the rice wetland increases, while the others decrease. Among those, the area of the bulrush wetland decreases most. In 1987, it takes 0.5% of the total area, but in 2002, it only takes 0.11%. The interpenetration of human influences on the wetland natural system has been long and close. The impacts of human activities on the spatial pattern of the wetland landscape along the Yellow River in Henan from 1987 to 2002 are great.
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| 关 键 词： | 湿地 景观格局 黄河 河南 GIS |
| 收稿时间： | 3/2/2004 12:00:00 AM |
Impacts of human activity and natural change on the wetland landscape pattern along the Yellow River in Henan Province |
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| LIANG Guofu,DING Shengyan.Impacts of human activity and natural change on the wetland landscape pattern along the Yellow River in Henan Province[J].Journal of Geographical Sciences,2004,14(3):339-348. |
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| Authors: | LIANG Guofu DING Shengyan |
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| Institution: | College of Environment and Planning, Henan University, Kaifeng 475001, China;College of Environment and Planning, Henan University, Kaifeng 475001, China |
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| Abstract: | By using GIS and remote sensing techniques, the paper discusses how human activities have changed along the Yellow River in Henan province, China and how these altered activities have influenced the wetland landscape pattern change from 1987 to 2002. Results show that the total area of the wetland reduces dramatically compared to 1987, the total area of wetland reduces by 19.18%, the number of the patches in 2002 increases by 21.17%, the density increases by 50%, and the total perimeter increases by 1,290,491 m. Disturbed by human activities, landscape diversity index decreases from 1.1740 in 1987 to 0.9803 in 2002. During the last 20 years, the total area of the rice wetland increases, while the others decrease. Among those, the area of the bulrush wetland decreases most. In 1987, it takes 0.5% of the total area, but in 2002, it only takes 0.11%. The interpenetration of human influences on the wetland natural system has been long and close. The impacts of human activities on the spatial pattern of the wetland landscape along the Yellow River in Henan from 1987 to 2002 are great. |
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| Keywords: | landscape pattern change the Yellow River floodplain remote sensing |
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