三峡水库自然修复消落区适宜植物青蒿时空变化——以重庆市万州区新田镇谭绍村为例  

Temporal and Spatial Variation of Suitable Plant Artemisia Carvifolia in Natural Restoration Area of Three Gorges Reservoir——A case study of Tanshao Village, Xintian Town in Wanzhou District of Chongqing

作　　者：郝艳龙[1,2] 高芳[1,2] 刘正学[1] 秦洪文[3] 李新[1,2] 刘小莉[3] 梁森林[3] 

机构地区：[1]重庆三峡学院环境与化学工程学院,重庆404100 [2]重庆三峡学院三峡库区水环境演变与污染防治重庆高校市级重点实验室,重庆404100 [3]重庆三峡学院生命科学与工程学院,重庆404100

出　　处：《三峡生态环境监测》2017年第3期17-24,共8页Ecology and Environmental Monitoring of Three Gorges

基　　金：国家自然科学基金面上项目(31270451);重庆市水利局项目(渝水资源[2014]10号);三峡库区水环境演变与污染防治重点实验室开放基金(WETKL2012MS-07);重庆市研究生科研创新项目(CYS15224);重庆三峡学院青年项目(15QN08);重庆市教委项目(KJ1601021)

摘　　要：采用典型植被随机样方法,对三峡水库自然消落区植被青蒿进行物种数量、盖度、多度等生态指标调查。运用统计学软件对其时空变化趋势进行描述统计。结果表明:(1)年际变化:2013-2015年青蒿物种数量和重要值都处于相对稳定状态;(2)高程变化:165~175 m高程的青蒿物种数量和重要值显著高于145~155 m、155~165 m和175~185 m未淹区段对照高程的物种数量和重要值,青蒿在165~175 m高层表现出较好的发展潜力;(3)可在165~175 m高程播种青蒿种子对消落区进行人工植被修复。The ecological indexes of Artemisia carvifolia, such as species numbers, coverage, and abundance,were surveyed with quadrat method in the water level fluctuation zone of the Three Gorges Reservoir. The temporal-spatial change trend of the indexes were statistically analyzed. The results show that:(1) The inter-annual variability:the species number and importance value of Artemisia carvifolia were stable from 2013 to 2015 years.(2) Elevation changes: the species number and importance value of Artemisia carvifolia were significantly higher at 165~175 m elevation level than those at the 145~155 m and 155~165 m levels as well as 175~185 m contrast regions, suggesting good development potential of Artemisia carvifolia at 165~175 m level.(3) Sowing Artemisia carvifolia at165~175 m level is a good way to renovate the water level fluctuation zone of the Three Gorges Reservoir.

关 键 词：三峡水库 自然消落区 青蒿 时间变化 空间变化 

分 类 号：X171[环境科学与工程—环境科学]