稿件编号:20200312
李桂静,廖江华,吴斌,关颖慧,曹建华,周金星.我国喀斯特断陷盆地石漠化区植物群落构建机制研究[J].世界林业研究,2020,33(3):67~73
我国喀斯特断陷盆地石漠化区植物群落构建机制研究
Plant Community Establishment Mechanism in Rocky Desertification Area of Karst Fault Basin in China
投稿时间:2019-08-18  修订日期:2020-01-13
DOI:10.13348/j.cnki.sjlyyj.2020.0007.y
中文关键词:  喀斯特断陷盆地|植物群落构建|水分脆弱性评价|群落组配理论|石漠化|中国
英文关键词:karst fault basin|plant community establishment|water vulnerability assessment|community assembly theory|rock desertification|China
基金项目:国家自然科学基金“喀斯特断陷盆地石漠化区水分梯度差异对植物群落构建的影响”(31870707);国家重点研发计划“断陷盆地石漠化区植被恢复与功能提升”(2016YFC0502504);国家重点研发计划课题“断陷盆地地表、地下水资源高效利用与优化调控”(2016YFC0502502)。
作者单位E-mail
李桂静 北京林业大学水土保持学院云南建水荒漠生态系统国家定位观测研究站, 云南建水 654300
北京林业大学水土保持国家林业和草原局重点实验室, 北京 100083 
 
廖江华 北京林业大学水土保持学院云南建水荒漠生态系统国家定位观测研究站, 云南建水 654300
北京林业大学水土保持国家林业和草原局重点实验室, 北京 100083 
 
吴斌 北京林业大学水土保持学院云南建水荒漠生态系统国家定位观测研究站, 云南建水 654300
北京林业大学水土保持国家林业和草原局重点实验室, 北京 100083 
 
关颖慧 北京林业大学水土保持学院云南建水荒漠生态系统国家定位观测研究站, 云南建水 654300
北京林业大学水土保持国家林业和草原局重点实验室, 北京 100083 
 
曹建华 中国地质科学院岩溶地质研究所, 自然资源部/广西岩溶动力学重点实验室, 广西桂林 541004  
周金星 北京林业大学水土保持学院云南建水荒漠生态系统国家定位观测研究站, 云南建水 654300
北京林业大学水土保持国家林业和草原局重点实验室, 北京 100083 
zjx9277@126.com 
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中文摘要:
      喀斯特断陷盆地是我国石漠化综合治理8大喀斯特类型中治理成效最低、治理难度最大的区域,面临石漠化严重、干旱频发、植被恢复难等突出问题。文中针对水分是影响喀斯特断陷盆地石漠化治理与植被恢复成效最关键的限制因素,综合分析了国内外水分梯度差异与植物群落构建机制研究动态与发展趋势;提出利用日趋成熟的水分脆弱性评价方法,通过建立基于耦合暴露度、敏感性及适应性的水资源脆弱性评价指标体系,以满足遥感影像分辨率和植物群落调查样地大小的评价单元进行水分脆弱性评估;在建立物种库—功能性状—生境特征数据库的基础上,提出基于功能性状差异进行喀斯特断陷盆地植物群落机制构建的研究方案。提出的研究方案有望解决喀斯特断陷盆地石漠化区水分梯度特征与分布格局、自然植物群落组配规律及其生境特征、水分梯度与生境要素对植物群落特征及功能性状组成的影响规律等关键科学问题,可为不同脆弱生态区植被恢复群落构建机制研究提供重要参考和借鉴。
英文摘要:
      The karst fault basin is the region where the rocky desertification control are challenged by the lowest effect and the greatest difficulty among the 8 karst types in China, and it faces serious problems including severe rocky desertification, frequent drought and difficult vegetation restoration. The paper comprehensively analyzes the research trends of water gradient differences and plant community establishment mechanisms at home and abroad in view of the fact that water is the most critical limiting factor affecting the rock desertification control and vegetation restoration effectiveness in the karst fault basin. The water vulnerability is evaluated using an increasingly mature water method of vulnerability assessment, with which a water vulnerability evaluation index system is established based on coupled exposure, sensitivity and adaptability, and the evaluation is made in the units which meet the resolution ratio of remote sensing image and the size of plant community investigation sampling plots. On the basis of a database of species bank-functional trait-habitat feature, a research scheme about establishing plant community mechanisms in karst fault basin is creatively proposed based on functional trait differences. The research scheme is expected to solve the key scientific issues including characteristics and distribution pattern of water gradient in rocky desertification area of karst fault basin, natural plant community assemblages and habitat characteristics and effects of water gradient and habitat elements on plant community characteristics and functional trait composition, which can also provide important references for the study of the mechanism of vegetation restoration communities establishment in different fragile ecological regions.
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