干旱区生态环境知识资源中心(Arid): Response of grassland ecosystem function to plant functional traits under different vegetation restoration models in areas of karst desertification

Arid

DOI	10.3389/fpls.2023.1239190
	Response of grassland ecosystem function to plant functional traits under different vegetation restoration models in areas of karst desertification
	Song, Shuzhen; Xiong, Kangning; Chi, Yongkuan
通讯作者	Xiong, KN
来源期刊	FRONTIERS IN PLANT SCIENCE
ISSN	1664-462X
出版年	2023
卷号	14
英文摘要	Plant functional traits serve as a bridge between plants, the environment, and ecosystem function, playing an important role in predicting the changes in ecosystem function that occur during ecological restoration. However, the response of grassland ecosystem function to plant functional traits in the context of ecological restoration in areas of karst desertification remains unclear. Therefore, in this study, we selected five plant functional traits [namely, plant height (H), specific leaf area (SLA), leaf dry matter content (LDMC), root length (RL), and root dry matter content (RDMC)], measured these along with community-weighted mean (CWM) and functional trait diversity, and combined these measures with 10 indexes related to ecosystem function in order to investigate the differences in plant functional traits and ecosystem function, as well as the relationship between plant functional traits and ecosystem functions, under four ecological restoration models [Dactylis glomerata (DG), Lolium perenne (LP), Lolium perenne + Trifolium repens (LT), and natural grassland (NG)]. We found that: 1) the Margalef index and Shannon-Wiener index were significantly lower for plant species in DG and LP than for those in NG (P<0.05), while the Simpson index was significantly higher in the former than in NG (P<0.05); 2) CWMH, CWMLDMC, and CWMRDMC were significantly higher in DG, LP, and LT than in NG, while CWMSLA was significantly lower in the former than in NG (P<0.05). The functional richness index (FRic) was significantly higher in DG and LP than in NG and LT, but the functional dispersion index (FDis) and Rao's quadratic entropy index (RaoQ) were significantly lower in DG and LP than in NG and LT (P<0.05), and there was no significant difference between DG and LP, or between NG and LT (P>0.05); 3) ecosystem function, including ecosystem productivity, carbon storage, water conservation and soil conservation, was highest in LT and lowest in NG; and 4) CWMLDMC (F=56.7, P=0.024), CWMRL (F=28.7, P=0.024), and CWMH (F=4.5, P=0.048) were the main factors affecting ecosystem function. The results showed that the mixed pasture of perennial ryegrass and white clover was most conductive to restoration of ecosystem function. This discovery has important implications for the establishment of vegetation, optimal utilization of resources, and the sustainable development of degraded karst ecosystems.
英文关键词	plant diversity functional trait ecosystem function ecological restoration karst desertification
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:001131696700001
WOS关键词	SOIL HYDROLOGIC FUNCTIONS ; CENTRAL GUIZHOU PROVINCE ; GRAZING INTENSITY ; SPECIES RICHNESS ; N-2 FIXATION ; LEAF TRAITS ; DIVERSITY ; COMMUNITY ; BIODIVERSITY ; SERVICES
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/396627
推荐引用方式 GB/T 7714	Song, Shuzhen,Xiong, Kangning,Chi, Yongkuan. Response of grassland ecosystem function to plant functional traits under different vegetation restoration models in areas of karst desertification[J],2023,14.
APA	Song, Shuzhen,Xiong, Kangning,&Chi, Yongkuan.(2023).Response of grassland ecosystem function to plant functional traits under different vegetation restoration models in areas of karst desertification.FRONTIERS IN PLANT SCIENCE,14.
MLA	Song, Shuzhen,et al."Response of grassland ecosystem function to plant functional traits under different vegetation restoration models in areas of karst desertification".FRONTIERS IN PLANT SCIENCE 14(2023).