干旱区生态环境知识资源中心(Arid): Long-term effects of restoration on the links between above-and belowground biodiversity in degraded Horqin sandy grassland, Northern China

Arid

DOI	10.3389/fenvs.2023.1128187
	Long-term effects of restoration on the links between above-and belowground biodiversity in degraded Horqin sandy grassland, Northern China
	Huang, Wenda; He, Yuanzheng; Wang, Huaihai; Zhao, Xin; Zhu, Yuanzhong
通讯作者	Huang, WD
来源期刊	FRONTIERS IN ENVIRONMENTAL SCIENCE
EISSN	2296-665X
出版年	2023
卷号	11
英文摘要	Long-term ecological restoration plays an important role in the sustainable development of degraded grassland ecosystem. In this study, the levels of species diversity, genetic diversity and soil microbial diversity in restored grassland were measured by vegetation survey, DNA barcoding and soil microbial high-throughput sequencing technology, so as to explore the relationship between above- and belowground biodiversity and its driving factors in Horqin sandy grassland. In this study, the results found that herb are dominated in restoration grassland types. Plant species richness (SR) from postnon-grazing restoration plot (NGR) communities was significantly higher than other restoration communities (10 +/- 1.1, p = 0.004). Genetic diversity indices of dominant plant species in chloroplast DNA (cpDNA), were remarkable greater than nuclear DNA (nrDNA) in each recovering sandy grassland plots (amplitude of difference was 44.8%-70.5% in allelic richness (AR), 81.9%-128.1% in expected heterozygosity (HE)). The soil bacterial and fungal richness from natural mobile dune grassland (NM) communities was notably lower than that from recovering grassland types (1641.9 +/- 100.4, p < 0.001; 533 +/- 16.6, p < 0.001). In this study, heterogeneous levels of genetic variability among different recovering sandy grassland types were detected. Correlation analyses revealed that there were positive correlations between species diversity and genetic diversity (S-R & A(R): r = 0.56, R-2 = 0.31, p < 0.001; S-R & H-E: r = 0.33, R-2 = 0.11, p = 0.045) and a negative correlation between soil microbial diversity and genetic diversity (r = -0.44, R-2 = 0.19, p = 0.005). The final structural equation model explained 38% of the variance in SR, 57% in A(R), 52% in soil microbial diversity (SD), 49% in aboveground biomass (AGB), 87% in soil organic carbon (SOC), 47% in soil alkali-hydrolyzable nitrogen (SAN) and 69% in soil available phosphorus (SOP). Long-term ecological restoration had significant direct positive effects on AGB, SOC, SAN, SOP, AR, SR and SD. There was a negative correlation between above- and belowground biodiversity and biological and abiotic factors. The results of this study have clarified the above- and underground biodiversity levels of sandy grassland and the relationship with driving factors under long-term ecological restoration measures, and will provide effective support for the management and sustainable development of sandy grassland.
英文关键词	sandy grassland long-term ecological restoration aboveground diversity belowground diversity structural equation model
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:001042089300001
WOS关键词	MICROBIAL COMMUNITY STRUCTURE ; SOIL BACTERIAL COMMUNITY ; SPECIES-DIVERSITY ; GENETIC DIVERSITY ; INNER-MONGOLIA ; PLANT ; LAND ; ECOSYSTEM ; DESERTIFICATION ; AMPLIFICATION
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/396532
推荐引用方式 GB/T 7714	Huang, Wenda,He, Yuanzheng,Wang, Huaihai,et al. Long-term effects of restoration on the links between above-and belowground biodiversity in degraded Horqin sandy grassland, Northern China[J],2023,11.
APA	Huang, Wenda,He, Yuanzheng,Wang, Huaihai,Zhao, Xin,&Zhu, Yuanzhong.(2023).Long-term effects of restoration on the links between above-and belowground biodiversity in degraded Horqin sandy grassland, Northern China.FRONTIERS IN ENVIRONMENTAL SCIENCE,11.
MLA	Huang, Wenda,et al."Long-term effects of restoration on the links between above-and belowground biodiversity in degraded Horqin sandy grassland, Northern China".FRONTIERS IN ENVIRONMENTAL SCIENCE 11(2023).