干旱区生态环境知识资源中心(Arid): Soil water conditions together with plant nitrogen acquisition strategies control vegetation dynamics in semi-arid wetlands undergoing land management changes

Arid

DOI	10.1016/j.catena.2023.107115
	Soil water conditions together with plant nitrogen acquisition strategies control vegetation dynamics in semi-arid wetlands undergoing land management changes
	Song, Tiejun; An, Yu; Tong, Shouzheng; Zhang, Wei; Wang, Xuan; Wang, Le; Jiang, Li
通讯作者	An, Y
来源期刊	CATENA
ISSN	0341-8162
EISSN	1872-6887
出版年	2023
卷号	227
英文摘要	Land management changes can significantly alter wetland soil environment, vegetation, and their interactions. Although the relationships between plant communities and environmental factors have been widely studied, the intrinsic driving mechanisms of vegetation dynamics are poorly understood because nutrient acquisition strategies play an important role in plant community assembly. This study compared the plant community characteristics of wetlands under different land management practices in the semi-arid western Songnen Plain, Northeast China, and investigated soil properties and plant community nutrient contents. Results showed compared with those in natural wetlands, the values of growth characteristics of plant communities were generally lower, whereas species diversity was higher in grazed or mowed wetlands. Furthermore, soil carbon (C), nitrogen (N), phosphorus (P) contents, their stoichiometric ratios, and soil water content were lower, and N contents in leaves and stems, soil bulk density, and pH were higher compared with those in natural wetlands. The plant community characteristics were significantly correlated with soil properties and plant nutrient contents. A redundancy analysis showed that soil water content, bulk density, and organic carbon, accounted for 59.3%, 15.6%, and 2.9%, respectively, the N in leaves, stems, and roots accounted for 62.8%, and the P in leaves and roots accounted for 12.2% of the variation in the plant community. Variation partitioning analysis further demonstrated that soil properties, plant nutrient contents, and their interactions explained 19.1 %, 11.8%, and 59.4% of the variation in the plant community, respectively. Therefore, the wetland vegetation dynamics are combinedly controlled by soil properties (especially soil water conditions) and plant nutrient acquisition strategies (especially plant nitrogen acquisition) under different land management practices. This study provides the theoretical basis for maintaining the stability of wetland ecosystems by designing plant resources-related managements in semi-arid regions.
英文关键词	Land management changes Plant nutrient acquisition Soil properties Semi-arid Wetland
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001024063200001
WOS关键词	LEAF TRAITS ; DIVERSITY ; PHOSPHORUS ; GRASSLAND ; COMMUNITY ; ECOSYSTEM ; NUTRIENT ; PLATEAU ; BIOMASS ; IMPACTS
WOS类目	Geosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS研究方向	Geology ; Agriculture ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/395683
推荐引用方式 GB/T 7714	Song, Tiejun,An, Yu,Tong, Shouzheng,et al. Soil water conditions together with plant nitrogen acquisition strategies control vegetation dynamics in semi-arid wetlands undergoing land management changes[J],2023,227.
APA	Song, Tiejun.,An, Yu.,Tong, Shouzheng.,Zhang, Wei.,Wang, Xuan.,...&Jiang, Li.(2023).Soil water conditions together with plant nitrogen acquisition strategies control vegetation dynamics in semi-arid wetlands undergoing land management changes.CATENA,227.
MLA	Song, Tiejun,et al."Soil water conditions together with plant nitrogen acquisition strategies control vegetation dynamics in semi-arid wetlands undergoing land management changes".CATENA 227(2023).