干旱区生态环境知识资源中心(Arid): Dam construction accelerated the development of biological soil crusts in degraded soil patches in the Lhasa River basin, Qinghai-Tibetan Plateau

Arid

DOI	10.1016/j.apsoil.2024.105454
	Dam construction accelerated the development of biological soil crusts in degraded soil patches in the Lhasa River basin, Qinghai-Tibetan Plateau
	Tao, Yue; Li, Yan; Tu, Jiawei; Chen, Zixu; Fu, Yaojia; Ye, Wenyan; Zhu, Jing; Chen, Chaoqi; Hou, Lianghui; Chen, Lanzhou
通讯作者	Chen, LZ
来源期刊	APPLIED SOIL ECOLOGY
ISSN	0929-1393
EISSN	1873-0272
出版年	2024
卷号	200
英文摘要	The Lhasa River Basin currently faces severe land degradation. In recent years, several dams have been built on the main stream, whereas, their impact on land desertification remains less elucidated. Herein, we investigated variances of soil properties and microbial communities in biological soil crusts (BSCs) along the valley area of Lhasa River and the mountain slope (altitude gradient) in reservoir area after five years of dam construction. Soil nutrient and water contents, enzyme activities, and N -cycle related functional gene copies significantly increased in reservoir -affected areas and decreased with the increase of mountain slope altitude and the distance away from the reservoir, which were usually degraded soil patches; similarly, the relative abundance of bacteria, fungi and moss in BSCs significantly increased in reservoir -affected areas, whilst that of cyanobacteria was higher in degraded soil patches. The linear and structural equation models also showed that dam construction altered water distribution status of soil surface, which enhanced soil properties, N -cycle and increased the relative abundance of moss of BSCs, and successfully accelerated the development and succession of BSCs in degraded soil. This study firstly reported that dam construction could accelerate the succession process of degraded soil in the reservoir affected area and thus a reference for ecological restoration of desertification soil of the Lhasa River Basin in QTP.
英文关键词	Dam construction Degraded soil Formation and development Biological soil crusts (BSCs) Microbial community structure
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001264203500001
WOS关键词	COMMUNITY ; DIVERSITY ; BIOCRUSTS ; NITROGEN ; DEGRADATION ; ABUNDANCE ; RESPONSES ; ECOSYSTEM ; PATTERNS ; CARBON
WOS类目	Soil Science
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/402888
推荐引用方式 GB/T 7714	Tao, Yue,Li, Yan,Tu, Jiawei,et al. Dam construction accelerated the development of biological soil crusts in degraded soil patches in the Lhasa River basin, Qinghai-Tibetan Plateau[J],2024,200.
APA	Tao, Yue.,Li, Yan.,Tu, Jiawei.,Chen, Zixu.,Fu, Yaojia.,...&Chen, Lanzhou.(2024).Dam construction accelerated the development of biological soil crusts in degraded soil patches in the Lhasa River basin, Qinghai-Tibetan Plateau.APPLIED SOIL ECOLOGY,200.
MLA	Tao, Yue,et al."Dam construction accelerated the development of biological soil crusts in degraded soil patches in the Lhasa River basin, Qinghai-Tibetan Plateau".APPLIED SOIL ECOLOGY 200(2024).