干旱区生态环境知识资源中心(Arid): Recovery of Soil-Denitrifying Community along a Chronosequence of Sand-Fixation Forest in a Semi-Arid Desertified Grassland

Arid

DOI	10.3390/f12030354
	Recovery of Soil-Denitrifying Community along a Chronosequence of Sand-Fixation Forest in a Semi-Arid Desertified Grassland
	Cao, Chengyou; Zhang, Ying; Cui, Zhenbo; Li, Hailong; Wang, Tingting; Ren, Qing
通讯作者	Cao, CY (corresponding author), Northeastern Univ, Coll Life & Hlth Sci, Shenyang 110169, Peoples R China.
来源期刊	FORESTS
EISSN	1999-4907
出版年	2021
卷号	12 期号:3
英文摘要	Revegetation on moving sand dunes is a widely used approach for restoring the degraded sandy land in northeastern China. The development of sand-fixation forest might improve the structures of soil microbial communities and affect soil N cycle. In the present study, the diversities of nitrite (nirS and nirK) and nitrous oxide (nosZ) reductase genes were investigated under a chronosequence of Caragana microphylla sand-fixation shrub forest (9- and 19-year), adjacent non-vegetated shifting sand-dune, and a natural forest dominated by C. microphylla. The dominant compositions and gene abundance were analyzed by a clone library technique and quantitative polymerase chain reaction, respectively. The compositions and dominant taxa of nirK, nirS, and nosZ communities under forest soil were all similar to those in the shifting sand-dune. However, the three gene abundances all linearly increased across forest age. Clones associated with known denitrifiers carrying nosZ, nirK, or nirS genes, such as members of Pseudomonas, Mesorhizobium, Rhizobium, Rhodopseudomonas, Azospirillum, and Cupriavidus, were detected. These denitrifiers were found to be abundant in soil and dominant in soil denitrification. Soil pH, total N, and available N affected the denitrifying communities by altering the relative abundance of dominant taxa. Overall, although soil attributes and forest age had no significant effects on the dominant constituents of nirK, nirS, and nosZ communities, revegetation on shifting sand-dunes facilitated the quantitative restoration of soil denitrifiers due to the increase in soil nutrients.
英文关键词	shrub plantation soil microbe denitrifying bacteria revegetation moving sand dune
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000633672900001
WOS类目	Forestry
WOS研究方向	Forestry
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368977
作者单位	[Cao, Chengyou; Zhang, Ying; Cui, Zhenbo; Li, Hailong; Wang, Tingting; Ren, Qing] Northeastern Univ, Coll Life & Hlth Sci, Shenyang 110169, Peoples R China
推荐引用方式 GB/T 7714	Cao, Chengyou,Zhang, Ying,Cui, Zhenbo,et al. Recovery of Soil-Denitrifying Community along a Chronosequence of Sand-Fixation Forest in a Semi-Arid Desertified Grassland[J],2021,12(3).
APA	Cao, Chengyou,Zhang, Ying,Cui, Zhenbo,Li, Hailong,Wang, Tingting,&Ren, Qing.(2021).Recovery of Soil-Denitrifying Community along a Chronosequence of Sand-Fixation Forest in a Semi-Arid Desertified Grassland.FORESTS,12(3).
MLA	Cao, Chengyou,et al."Recovery of Soil-Denitrifying Community along a Chronosequence of Sand-Fixation Forest in a Semi-Arid Desertified Grassland".FORESTS 12.3(2021).