干旱区生态环境知识资源中心(Arid): Beyond shrub dieback: Understory plant diversity, soil water and soil carbon storage were improved in a semi-arid region

Arid

DOI	10.1016/j.foreco.2023.121267
	Beyond shrub dieback: Understory plant diversity, soil water and soil carbon storage were improved in a semi-arid region
	Zhang, Zitong; Wang, Ke; Li, Gaoliang; Xie, Xiaomeng; Chang, Xiaofeng; Zheng, Jiyong
通讯作者	Chang, XF ; Zheng, JY
来源期刊	FOREST ECOLOGY AND MANAGEMENT
ISSN	0378-1127
EISSN	1872-7042
出版年	2023
卷号	545
英文摘要	Shrub plantation is an effective approach for controlling soil erosion and land degradation. However, the extensive dieback on shrubs as a result of climatic changes or soil drought may impair shrub plantations' ecosystem functions in arid and semi-arid regions. In this study, we sampled brown C. korshinskill plantations (shrub dieback > 90%), green plantations (shrub dieback was rarely < 10%) and an over-100 years' natural grassland as the reference. The changes in plant biomass and diversity of understory vegetation, soil water storage (SWS) and carbon storage (SOCs) across of 0-10 m soil profile were analyzed. The results showed that, (i) the understory herbaceous biomass in brown plantations was 134.1 g m  2 and significantly higher by 49.5% than green plantations. The biomass and diversity of perennial forbs and annual/biennial grasses in brown plantations was also increased significantly; (ii) shrub dieback replenished soil water within 1-5 m depth. The SWS under brown plantations was significantly increased by 44.6% compared with green plantations, and reached 84.7% of that in natural grassland; (iii) the SOCs was notably higher in shrub plantations in the 0-10 m soil profile, increasing by 6.68% and 10.3% compared with natural grassland, respectively. SOC accumulation was mostly occurred at depths below 5 m under brown plantations. Overall, beyond shrub dieback, ecosystem functions of plantations were enhanced unexpectedly. The findings suggest that it was a blessing in shrub dieback disguise, understory herbaceous vegetation may maintain ecosystem functions of plantations in the semi-arid region alternatively.
英文关键词	Afforestation Slope shrubland Deep soil Loess Plateau
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001050738900001
WOS关键词	LOESS PLATEAU ; VEGETATION ; MOISTURE ; AFFORESTATION ; REVEGETATION ; RESTORATION ; GRASSLANDS ; DECLINE ; BIOMASS ; CHINA
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/2XILL650/396392
推荐引用方式 GB/T 7714	Zhang, Zitong,Wang, Ke,Li, Gaoliang,et al. Beyond shrub dieback: Understory plant diversity, soil water and soil carbon storage were improved in a semi-arid region[J],2023,545.
APA	Zhang, Zitong,Wang, Ke,Li, Gaoliang,Xie, Xiaomeng,Chang, Xiaofeng,&Zheng, Jiyong.(2023).Beyond shrub dieback: Understory plant diversity, soil water and soil carbon storage were improved in a semi-arid region.FOREST ECOLOGY AND MANAGEMENT,545.
MLA	Zhang, Zitong,et al."Beyond shrub dieback: Understory plant diversity, soil water and soil carbon storage were improved in a semi-arid region".FOREST ECOLOGY AND MANAGEMENT 545(2023).