| 人为补水对扎龙河漫滩湿地植被的影响 |
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| 引用本文： | 卜兆君,田讯.人为补水对扎龙河漫滩湿地植被的影响[J].湿地科学与管理,2007,3(4):44-48. |
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| 作者姓名： | 卜兆君 田讯 |
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| 作者单位： | 1. 东北师范大学泥炭沼泽研究所,吉林长春,130024
2. 内蒙古民族大学农学院,内蒙古通辽,028042 |
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| 基金项目： | 国家自然科学基金，东北师范大学校科研和教改项目 |
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| 摘 要： | 通过对扎龙河漫滩湿地植被定位观测,对比研究人为补水对湿地植被的影响。人为补水后,湿地植被发生了湿生化演替趋势。湿草甸植物生活型谱中,地面芽植物有所增加,挺水植物沼泽则无明显变化;湿地与草地过渡带植物生活型组成对水位增加反应敏感,典型湿地植被生活型组成变化不大。研究表明,水位波动强烈的河漫滩湿地中,水文学的微弱改变可以导致湿地植被的明显变化。湿地的人为补水应结合准确的气候预测,进行湿地生态需水量研究,确定合理的补水量和补水时间。
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| 关 键 词： | 湿地 植被动态 生活型 优势度 |
| 修稿时间： | 2007年7月31日 |
Effects of Artificial Water-supply on Vegetation in Zhalong Floodplain Wetland |
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| BU Zhao-Jun,TIAN Xun.Effects of Artificial Water-supply on Vegetation in Zhalong Floodplain Wetland[J].Wetland Science & Management,2007,3(4):44-48. |
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| Authors: | BU Zhao-Jun TIAN Xun |
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| Abstract: | The effect of artificial water-supply on the wetland vegetation was studied by observing the floodplain vegetation in Zhalong.After artificial water-supply,wetland vegetation showed a tendency of hygrocolization.Regarding the life-form of wet meadow plants,the number of hemicryptophytes species increased,and no obvious change was observed in marsh.The composition of plant life-forms in the transitional area between wetland and grassland was sensitive to increase of water-level,while only little change in life-form composition happened in the typical wetland vegetation.The result shows that in the floodplain with intense water level pulse,slight hydrological change can result in distinct change in plant composition of wetland vegetation.Artificial water-supply to wetlands should be based on analysis of ecological water demand in combination of accurate climate forecast in order to determine appropriate quantity and timing of water-supply. |
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| Keywords: | Wetland Vegetation Dynamics Life-form Dominance |
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