Controls on aeolian sediment dynamics by natural riparian vegetation in the Eastern Tarim Basin, NW China
Controls on aeolian sediment dynamics by natural riparian vegetation in the Eastern Tarim Basin, NW China
复制标题
塔里木盆地东部自然河岸植被对风沙动态的控制
DOI：
10.1016/j.aeolia.2015.04.005
复制
发表时间：
2015-09-01
期刊：
影响因子：
3.3
通讯作者：
Cyffka, Bernd
中科院分区：
文献类型：
--
作者：
Betz, Florian;Halik, Uemuet;Cyffka, Bernd
塔里木盆地东部遭受沙尘暴。流沙是道路基础设施的一个大的自然危害，并导致缓解措施的高成本。天然植被被认为有能力减少风沙，从而有效地保护道路，这也是塔里木河恢复措施的宣传中经常使用的一个论点。尽管近年来生态与地貌相互作用的研究越来越受到人们的关注，但迄今为止还没有定量的估算方法。本研究利用阻力分配的物理原理，模拟天然植被对泥沙的截留作用。对于约10 km（2）的调查区域，植物可以固定11，656 kg沉积物，这些沉积物不适用于穿过该区域的道路上的流沙危害。此外，空间上明确的方法，这项研究允许创建的泥沙滞留图，可用于进一步的环境规划和科学解释的自然河岸植被在塔里木河和风成沉积动力学之间的地貌相互作用。(C)2015 Elsevier B.V.版权所有。
The Eastern Tarim basin suffers from sand and dust storms. Drifting sand is a big natural hazard for the road infrastructure and causes high costs for mitigation measures. Natural vegetation is considered having the capability to reduce sand drift and thereby to be an effective protection for the roads, an argument also frequently used for propagating restoration measures at the Tarim River. Nevertheless no quantitative estimation is available up to now even if the research on the interaction of ecology and geomorphology has gained more and more interest in recent years. This study uses the physical principles of drag partition to model the sediment retention by natural vegetation. For an investigation area of about 10 km(2) 11,656 kg of sediment could be fixed by the plants, sediment which is not available for sand drift hazards on the road running through the area. Furthermore the spatially explicit approach of this study allows the creation of sediment retention maps which can be used for further environmental planning and scientific interpretations of biogeomorphological interactions between the natural riparian vegetation at the Tarim River and aeolian sediment dynamics. (C) 2015 Elsevier B.V. All rights reserved.