| 吉林西部向海湿地环境退化及驱动机制研究 |
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| 引用本文： | 卞建民,林年丰,汤洁.吉林西部向海湿地环境退化及驱动机制研究[J].吉林大学学报(地球科学版),2004,34(3):441-444,458. |
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| 作者姓名： | 卞建民 林年丰 汤洁 |
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| 作者单位： | 中国科学院,地球化学研究所环境地球化学国家重点实验室,贵州,贵阳,550002;吉林大学,环境与资源学院,吉林,长春,130026;吉林大学,环境与资源学院,吉林,长春,130026 |
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| 摘 要： | 向海湿地位于半干旱的吉林西部平原区,特殊的地理位置和水文条件决定了湿地处于动态变化之中.在自然和人为驱动影响下,系统结构和功能发生明显的退化趋势,湿地面积缩小、调节功能削弱,区域荒漠化发展迅速.通过对湿地发育的环境背景条件分析,剖析了湿地退化的现状及驱动机制,水陆界面的脆弱性是湿地退化的环境背景条件,而气候干旱化、上游水的大量截流、水利工程设施及土地资源的不合理开发利用等自然、人为因素的耦合作用,加速了湿地的退化过程.基于湿地退化的现状和驱动机制,河流湿地退化的恢复必须从湿地的水文功能出发,考虑水资源的循环和转化,制定水资源综合利用方案及生态技术和生态工程措施.
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| 关 键 词： | 向海湿地 环境退化 驱动机制 湿地恢复 |
| 文章编号： | 1671-5888(2004)03-0441-05 |
The environment degradation and its driving mechanism of Xianghai wetland in the west of Jilin Province |
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| BIAN Jian-min.The environment degradation and its driving mechanism of Xianghai wetland in the west of Jilin Province[J].Journal of Jilin Unviersity:Earth Science Edition,2004,34(3):441-444,458. |
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| Authors: | BIAN Jian-min |
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| Institution: | BIAN Jian-min~ |
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| Abstract: | Xianghai wetland is located in the west of Jilin Province with a semi-arid climate. The special geographical location and hydrographical condition makes the wetland water environment stand in the dynamic changing. Under the natural and artificial influences, the structure and function of the wetland appear obviously degraded, such as, the area shrink, the system function become weak which results in the rapid desertification. This paper have discussed the present state and driving mechanism of the environment degradation of this wetland based on the environmental background. The fragible interface between water and soil is the natural background, but the climate aridity, upstream water interception ,hydraulic engineering and irrational land-use activities are the inducing factors to promote the wetland degradation. Finally comprehensively considering the present state of degradation and its driving mechanisms, a comprehensive water resources management plan and an ecological technology and engineering were put forwards to recover the degraded wetland. |
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| Keywords: | Xianghai wetland environment degradation driving mechanism wetland reclamation |
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