| 洞庭湖区的泥沙淤积效应 |
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| 引用本文： | 李景保,尹辉,常疆,卢承志,周和平.洞庭湖区的泥沙淤积效应[J].地理学报(英文版),2009,19(3):287-298. |
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| 作者姓名： | 李景保 尹辉 常疆 卢承志 周和平 |
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| 作者单位： | [1]College of Resources and Environment Science, Hunan Normal University, Changsha 410081, China [2]Hunan Hydro ＆ Power Design Institute, Changsha 410007, China |
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| 基金项目： | Key Discipline Building Program on Physical Geography of Hunan Province; Project for Science ＆ Technology of Hunan Province, No.2007Fj302 |
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| 摘 要： | According to a long series of measured sediment data, the sedimentation effects of the Dongting Lake Area (DLA) were studied in light of the relationship between sedimentation characteristics and resources and environment. The result shows that the long-term deposi- tion and the impact of human activities have led to a cycle of the evolution of sedimentation pattern, resulting in sediment disaster effects and resources effects in the DLA. The main features are as follows: 1) The water beach, silt beach, lake marsh beach, reed beach and other types of beach shaped by sedimentation effects constitute the main body of the giant lake system. 2) The disaster chains are induced, i.e., sedimentation → marshland expansion and reclamation → flood function decline, fish resource depletion, biodiversity reduction dis- aster chain, sedimentation → marshland expansion → floods, water pollution disaster chain, sedimentation → marshland floating vegetation rising → schistosomiasis, rodents virulence disaster chain, sedimentation → flood embankment bursting → land desertification disaster chain. 3) Sedimentation has created about 98.13×104hm2 of land in the past 55 years. Ra-tional development and utilization of marshland resources have produced tremendous eco- nomic benefits.
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| 关 键 词： | 洞庭湖区 泥沙淤积 土地荒漠化 资源枯竭 合理开发利用 湿地资源 灾害链 生物多样性 |
Sedimentation effects of the Dongting Lake Area |
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| Jingbao Li,Hui Yin,Jiang Chang,Chengzhi Lu,Heping Zhou.Sedimentation effects of the Dongting Lake Area[J].Journal of Geographical Sciences,2009,19(3):287-298. |
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| Authors: | Jingbao Li Hui Yin Jiang Chang Chengzhi Lu Heping Zhou |
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| Institution: | (1) College of Resources and Environment Science, Hunan Normal University, Changsha, 410081, China;(2) Hunan Hydro & Power Design Institute, Changsha, 410007, China |
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| Abstract: | According to a long series of measured sediment data, the sedimentation effects of the Dongting Lake Area (DLA) were studied
in light of the relationship between sedimentation characteristics and resources and environment. The result shows that the
long-term deposition and the impact of human activities have led to a cycle of the evolution of sedimentation pattern, resulting
in sediment disaster effects and resources effects in the DLA. The main features are as follows: 1) The water beach, silt
beach, lake marsh beach, reed beach and other types of beach shaped by sedimentation effects constitute the main body of the
giant lake system. 2) The disaster chains are induced, i.e., sedimentation → marshland expansion and reclamation → flood function
decline, fish resource depletion, biodiversity reduction disaster chain, sedimentation → marshland expansion → floods, water
pollution disaster chain, sedimentation → marshland floating vegetation rising → schistosomiasis, rodents virulence disaster
chain, sedimentation → flood embankment bursting → land desertification disaster chain. 3) Sedimentation has created about
98.13×104 hm2 of land in the past 55 years. Rational development and utilization of marshland resources have produced tremendous economic
benefits.
Foundation: Key Discipline Building Program on Physical Geography of Hunan Province; Project for Science & Technology of Hunan Province,
No.2007Fj302
Author: Li Jingbao (1951–), Professor, specialized in hydrology, water resources and natural disasters. |
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| Keywords: | sedimentation lake beach sediment disaster chain sand resources |
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