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作 者:孙涛[1,2] 唐进年[1,2] 韩福贵[1] 张锦春[1] 郭树江 段晓峰 张裕年 张莹花[1]
机构地区:[1]甘肃省治沙研究所甘肃省荒漠化与风沙灾害防治国家重点实验室培育基地,甘肃兰州730070 [2]中国林业科学研究院荒漠化研究所,北京100091 [3]甘肃民勤荒漠草地生态系统国家野外科学观测研究站,甘肃民勤733300
出 处:《水土保持通报》2016年第4期351-356,共6页Bulletin of Soil and Water Conservation
基 金:国家自然科学基金青年项目"干旱区白刺灌丛沙堆发育过程的土壤呼吸时空变化特征及其影响因素"(31300595);国家自然科学基金地区项目"库木塔格沙漠第四纪地层沉积特征记录的沙漠演化过程"(41262008);甘肃省基础研究创新群体项目(1506RJIA155)
摘 要:[目的]对干旱荒漠区灌丛沙堆的发育过程、形态特征、生态效益及环境演变等方面的研究进展进行总结和展望,以期为荒漠区灌丛沙堆生态机理、灌丛群落生态稳定性等方面研究提供支持。[方法]从干旱荒漠区灌丛沙堆的形成发育过程和机制出发,采用文献综述的方法进行分析和总结。[结果]总结了灌丛沙堆地貌形态特征、空间格局分布、沙物质沉积特征,阐述了灌丛沙堆所具有的多种生态效应和区域环境演变之间的响应关系,并对今后灌丛沙堆的研究方向和动态进行了展望。[结论]对灌丛沙堆演变过程的研究有助于更深入地了解区域生态环境变化过程与全球气候变化间的内在联系。[Objective] Nebkhas, a kind of dune that is commonly distributed in arid desert areas. In this article, its forming process, morphological characteristics, ecological effects and environmental evolution were reviewed and summarized to provide knowledges for the research of its ecological mechanism and the ecological stabilization. [Method] Literatures were reviewed and summarized with regard to the development process and the formation mechanism of the nabkhas in the arid desert region. [Results] The formation and development of nebkhas, the morphology, spatial distribution, sediment characteristics were reviewed. And various ecological effects of nebkhas and the related regional environmental evolution were described. The trend of nebkhas research was prospected. [Conclusion] Research of nebkhas evolution in arid land was expected to help us to understand more about the interior relationship between the process of regional eco-environmental change and global climate change in the future.
分 类 号:P931.3[天文地球—自然地理学]
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