气候变化领域集成服务门户(CCPortal): Effects of covering sand with different soil substrates on the formation and development of artificial biocrusts in a natural desert environment

CCPortal

DOI	10.1016/j.still.2021.105081
	Effects of covering sand with different soil substrates on the formation and development of artificial biocrusts in a natural desert environment
	Zhao, Yang; Xu, Wenwen; Wang, Nan
通讯作者	Zhao, Y (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Shapotou Desert Res & Expt Stn, 320 Donggang West Rd, Lanzhou 730000, Peoples R China.
发表日期	2021
ISSN	0167-1987
EISSN	1879-3444
卷号	213
英文摘要	In recent years, artificial biological soil crusts (BSCs)-i.e., the inoculation of soil with cyanobacteria-have become one of the most promising biotechnological strategies for preventing soil erosion and restoring soil functionality in degraded drylands. In order to use this biotechnology on a large scale, researchers must explore methods that enable rapid and largescale propagation of soil inoculum, as well as testing methods for developing artificial BSCs in the field. To help do this, we tested the effects of four soil substrates on the development of artificial BSCs in the Tengger Desert. Each soil substrate was collected from a different area in Zhongwei city in northern China and had different particle sizes and nutrient contents. We measured artificial BSCs characteristics according to the coverage, thickness, and wind erosion resistance of the BSCs analyzed. After 12 months, incubated artificial BSC coverage in incubated soils rose from 6% to 20%, and thickness rose from 2.94 to 4.06 mm. Incubated BSC coverage was positively correlated with fine material content (i.e., soil particle size less than 0.10 mm). There was also a positive relationship between coverage and soil organic matter, total nitrogen, and total phosphorus. Artificial BSC inoculation significantly improved soil resistance to wind erosion. These findings indicate that soil substrates improve BSC recovery rate over sand substrates by enhancing sand surface stabilization, increasing initial silt and clay content and nutrient content, especially soil organic matter content. Considering the scarcity of soil resources and the advantages of reusing soil resources, we suggest that left-over soils dredged from irrigation channels and abandoned farmlands can be used as substrate for the propagation of BSC inoculum.
关键词	MOSS BIOCRUSTS TENGGER-DESERT LOESS PLATEAU CRUSTS CYANOBACTERIA REHABILITATION ESTABLISHMENT COMMUNITIES CULTIVATION DIVERSITY
英文关键词	Artificial cyanobacteria crust; Drylands; Ecology restoration; Fine sand fraction; Soil nutrients; Tengger Desert
语种	英语
WOS研究方向	Agriculture
WOS类目	Soil Science
WOS记录号	WOS:000687288800008
来源期刊	SOIL & TILLAGE RESEARCH
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/253685
作者单位	[Zhao, Yang; Xu, Wenwen; Wang, Nan] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Shapotou Desert Res & Expt Stn, 320 Donggang West Rd, Lanzhou 730000, Peoples R China; [Xu, Wenwen; Wang, Nan] Univ Chinese Acad Sci, Coll Resource & Environm, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Yang,Xu, Wenwen,Wang, Nan. Effects of covering sand with different soil substrates on the formation and development of artificial biocrusts in a natural desert environment[J]. 中国科学院西北生态环境资源研究院,2021,213.
APA	Zhao, Yang,Xu, Wenwen,&Wang, Nan.(2021).Effects of covering sand with different soil substrates on the formation and development of artificial biocrusts in a natural desert environment.SOIL & TILLAGE RESEARCH,213.
MLA	Zhao, Yang,et al."Effects of covering sand with different soil substrates on the formation and development of artificial biocrusts in a natural desert environment".SOIL & TILLAGE RESEARCH 213(2021).