干旱区生态环境知识资源中心(Arid): Very fine roots contribute to improved soil water storage capacity in semi-arid wetlands in Northeast China

Arid

DOI	10.1016/j.catena.2021.105966
	Very fine roots contribute to improved soil water storage capacity in semi-arid wetlands in Northeast China
	Song, Tiejun; An, Yu; Wen, Bolong; Tong, Shouzheng; Jiang, Li
通讯作者	An, Y ; Tong, SZ
来源期刊	CATENA
ISSN	0341-8162
EISSN	1872-6887
出版年	2022
卷号	211
英文摘要	Wetland soil water storage affects the water cycle and maintains the stability of wetland ecosystems. Plant roots link soil and vegetation and play an important role in soil structure and function. However, our understanding of how roots control soil water storage in wetland ecosystems is relatively poor. This study compared and analyzed root traits and soil properties between different wetlands (Carex appendiculata, Calamagrostis angustifolia, and Phragmites australis) and bare land in the western Songnen Plain, Northeast China. We then comprehensively evaluated the soil water storage capacity under different vegetation types and identified the main root traits affecting soil water storage capacity. The results showed that different vegetation types presented different root distribution characteristics. Approximately 89.44%, 67.62%, and 82.67% of root biomass was distributed in the 0-20 cm soil layer in C. appendiculata, C. angustifolia, and P. australis wetlands, respectively. P. australis wetlands exhibited the lowest clay and silt contents, whereas the 0-40 cm soil layer exhibited the highest very fine sand, fine sand, and medium sand contents. C. angustifolia wetland showed the best soil water storage capacity, fol-lowed by C. appendiculata wetland, P. australis wetland, and bare land. Principal component analysis showed that the void ratio, bulk density, capillary porosity, organic matter content, medium sand content, silt content, very coarse sand content, and non-capillary porosity are major indicators for evaluating soil water storage capacity. Redundancy analysis showed that the volume of very fine roots is the most important root trait that affects the soil water storage capacity. This study provides practical guidelines for evaluating wetland ecosystem services and a theoretical basis for the restoration and reconstruction of degraded wetlands in semi-arid regions.
英文关键词	Vegetation Soil Root traits Soil properties Ecosystem restoration
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000790468400005
WOS关键词	YELLOW-RIVER DELTA ; AGGREGATE STABILITY ; SIZE DISTRIBUTIONS ; VEGETATION ; TRAITS ; FOREST ; RESOURCES ; RETENTION
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/2XILL650/392073
推荐引用方式 GB/T 7714	Song, Tiejun,An, Yu,Wen, Bolong,et al. Very fine roots contribute to improved soil water storage capacity in semi-arid wetlands in Northeast China[J],2022,211.
APA	Song, Tiejun,An, Yu,Wen, Bolong,Tong, Shouzheng,&Jiang, Li.(2022).Very fine roots contribute to improved soil water storage capacity in semi-arid wetlands in Northeast China.CATENA,211.
MLA	Song, Tiejun,et al."Very fine roots contribute to improved soil water storage capacity in semi-arid wetlands in Northeast China".CATENA 211(2022).