干旱区生态环境知识资源中心(Arid): Discussion on wind factor influencing the distribution of biological soil crusts on surface of sand dunes

Arid

	Discussion on wind factor influencing the distribution of biological soil crusts on surface of sand dunes
	Wu Yongsheng; Hasi Erdun; Yin Ruiping; Zhang Xin; Ren Jie; Wang Jian; Tian Xiumin; Li Zekun; Miao Henglu
来源期刊	Sciences in Cold and Arid Regions
ISSN	1674-3822
出版年	2013
卷号	5 期号:6 页码:739-744
英文摘要	Biological soil crusts are widely distributed in arid and semi-arid regions, whose formation and development have an important impact on the restoration process of the desert ecosystem. In order to explore the relationship between surface airflow and development characteristics of biological soil crusts, we studied surface airflow pattern and development characteristics of biological soil crusts on the fixed dune profile through field observation. Results indicate that the speed of near-surface airflow is the lowest at the foot of windward slope and the highest at the crest, showing an increasing trend from the foot to the crest. At the leeward side, although near-surface airflow increases slightly at the lower part of the slope after an initial sudden decrease at upper part of the slope, its overall trend decreases from the crest. Wind velocity variation coefficient varied at different heights over each observation site. The thickness, shear strength of biological soil crusts and percentage of fine particles at crusts layer decreased from the slope foot to the upper part, showing that biological soil crusts are less developed in high wind speed areas and well developed in low wind speed areas. It can be seen that there is a close relationship between the distribution of biological soil crusts in different parts of the dunes and changes in airflow due to geomorphologic variation.
英文关键词	biological soil crusts sand dune wind distribution
类型	Article
语种	英语
收录类别	CSCD
WOS研究方向	Science & Technology - Other Topics
CSCD记录号	CSCD:5011790
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335292
作者单位	Wu Yongsheng, Institute of Water Resources for Pastoral Area, The Ministry of Water Resources of China, Hohhot, Inner Mongolia 010020, China.; Yin Ruiping, Institute of Water Resources for Pastoral Area, The Ministry of Water Resources of China, Hohhot, Inner Mongolia 010020, China.; Zhang Xin, Institute of Water Resources for Pastoral Area, The Ministry of Water Resources of China, Hohhot, Inner Mongolia 010020, China.; Ren Jie, Institute of Water Resources for Pastoral Area, The Ministry of Water Resources of China, Hohhot, Inner Mongolia 010020, China.; Wang Jian, Institute of Water Resources for Pastoral Area, The Ministry of Water Resources of China, Hohhot, Inner Mongolia 010020, China.; Tian Xiumin, Institute of Water Resources for Pastoral Area, The Ministry of Water Resources of China, Hohhot, Inner Mongolia 010020, China.; Li Zekun, Institute of Water Resources for Pastoral Area, The Ministry of Water Resources of China, Hohhot, Inner Mongolia 010020, China.; Miao Henglu, Institute of Water Reso...
推荐引用方式 GB/T 7714	Wu Yongsheng,Hasi Erdun,Yin Ruiping,et al. Discussion on wind factor influencing the distribution of biological soil crusts on surface of sand dunes[J],2013,5(6):739-744.
APA	Wu Yongsheng.,Hasi Erdun.,Yin Ruiping.,Zhang Xin.,Ren Jie.,...&Miao Henglu.(2013).Discussion on wind factor influencing the distribution of biological soil crusts on surface of sand dunes.Sciences in Cold and Arid Regions,5(6),739-744.
MLA	Wu Yongsheng,et al."Discussion on wind factor influencing the distribution of biological soil crusts on surface of sand dunes".Sciences in Cold and Arid Regions 5.6(2013):739-744.