干旱区生态环境知识资源中心(Arid): Depth-related response of soil enzymes to cyanobacteria-dominated crusts along a precipitation gradient

Arid

DOI	10.1002/ldr.4024
	Depth-related response of soil enzymes to cyanobacteria-dominated crusts along a precipitation gradient
	Zhang, Ke; Li, Mengmeng; Wang, Kai; Gao, Nan; Liu, Dequan; Chen, Yongle
通讯作者	Zhang, K (corresponding author), Zhengzhou Univ Light Ind, Sch Mat & Chem Engn, High Tech Zone, 136 Sci Ave, Zhengzhou 430000, Peoples R China.
来源期刊	LAND DEGRADATION & DEVELOPMENT
ISSN	1085-3278
EISSN	1099-145X
出版年	2021
卷号	32 期号:15 页码:4183-4192
英文摘要	This study aimed to elucidate the ecological role of cyanobacteria-dominated crusts on soil enzymes activities along a precipitation gradient. Results showed that proteins and polysaccharides contents of cyanobacterial-dominated crusts changed significantly among nine sample sites. Meanwhile, proteins and polysaccharides displayed a downward trend with increasing thickness and decreased with increasing mean annual temperature, while these two first increased, and then decreased with increasing chlorophyll a. The pronounced variations of polysaccharides and proteins could be explained by the shift in cyanobacteria species composition due to the discrepancy of succession stage at the regional scale. Activities of soil enzymes decreased with depth and varied significantly among sample sites. Redundancy analysis showed that soil enzymes activities in 0-2 cm were mainly explained by microbial biomass, polysaccharides, and soil organic carbon, and those in 2-5 cm were mainly influenced by microbial biomass and climate, while those in 5-10 cm were mainly affected by climate. The results highlighted the intrinsic involvement of microbes in shallower soil (0-5 cm) after the establishment of crusts and proved the effect of polysaccharides on surface soil (0-2 cm) enzymes activities. The strengthened effect of climate on soil enzymes activities in depths manifested the water availability and temperature would restrict soil microbial activity. Therefore, we concluded that the response of soil enzymes activities beneath the cyanobacteria-dominated crusts is depth related. Overall, our findings will provide a better knowledge of cyanobacteria-dominated crusts properties at the regional scale, and its effects on soil enzymes activities can replenish the understanding of cyanobacteria-dominated crusts on biogeochemical processes.
英文关键词	arid and semiarid ecosystem cyanobacteria-dominated crusts microbial biomass polysaccharides soil enzymes activities
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000675132100001
WOS关键词	BACTERIAL DIVERSITY ; TENGGER DESERT ; NEGEV DESERT ; EXOPOLYSACCHARIDES ; CARBON
WOS类目	Environmental Sciences ; Soil Science
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/364099
作者单位	[Zhang, Ke; Li, Mengmeng; Wang, Kai; Gao, Nan; Liu, Dequan] Zhengzhou Univ Light Ind, Sch Mat & Chem Engn, Zhengzhou, Peoples R China; [Zhang, Ke] Zhengzhou Univ Light Ind, Collaborat Innovat Ctr Environm Pollut Control &, Zhengzhou, Peoples R China; [Chen, Yongle] Shenzhen Univ, Coll Life Sci & Oceanog, Shenzhen, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Ke,Li, Mengmeng,Wang, Kai,et al. Depth-related response of soil enzymes to cyanobacteria-dominated crusts along a precipitation gradient[J],2021,32(15):4183-4192.
APA	Zhang, Ke,Li, Mengmeng,Wang, Kai,Gao, Nan,Liu, Dequan,&Chen, Yongle.(2021).Depth-related response of soil enzymes to cyanobacteria-dominated crusts along a precipitation gradient.LAND DEGRADATION & DEVELOPMENT,32(15),4183-4192.
MLA	Zhang, Ke,et al."Depth-related response of soil enzymes to cyanobacteria-dominated crusts along a precipitation gradient".LAND DEGRADATION & DEVELOPMENT 32.15(2021):4183-4192.