干旱区生态环境知识资源中心(Arid): Reforestation Will Lead to a Long-Term Downward Trend in the Water Content of the Surface Soil in a Semi-Arid Region

Arid

DOI	10.3390/f15050789
	Reforestation Will Lead to a Long-Term Downward Trend in the Water Content of the Surface Soil in a Semi-Arid Region
	Yang, Junjun; Guo, Lingxia; Liu, Yufeng; Lin, Pengfei; Du, Jun
通讯作者	Yang, JJ
来源期刊	FORESTS
EISSN	1999-4907
出版年	2024
卷号	15 期号:5
英文摘要	The spatial distribution of soil moisture is a critical determinant for the success of vegetation restoration initiatives in semi-arid and arid regions. The Qilian Mountains, situated within a semi-arid zone in China, have been subject to significant water-induced soil erosion, which has led to extensive restoration activities, predominantly utilizing the species P. crassifolia. However, the interconnections between soil moisture and various land cover types within this region remain unclear, presenting challenges to effective woodland rehabilitation. This study examines the surface soil moisture dynamics in afforested areas with varying ages of plantation to determine the influence of tree planting on the moisture content of the upper soil layer. It investigates the characteristics and temporal patterns of surface soil moisture as the age of the plantation increases. The findings indicate that: (1) soil moisture levels follow a descending sequence from natural forest, through shrubland and grassland, to planted forest and mixed forest, with statistically significant differences observed between natural and mixed forests (p < 0.05); (2) young afforested areas (less than 50 years old) have lower soil moisture levels compared to natural forests, shrublands, or grasslands, and the ecohydrological impacts of afforestation become apparent with a temporal delay; and (3) the analysis using Generalized Additive Mixed Models (GAMM) and the application of Kriging interpolation to determine the spatial distribution of soil moisture reveals that in semi-arid and arid regions, several factors have a pronounced a non-linear relationship with the moisture content of the surface soil. These factors include the duration of afforestation, the position on the lower slope, the presence of shade on the slope, and the scale at which the study is conducted. Therefore, a comprehensive understanding of the dynamics of soil water content is essential to prevent the potential failure of artificially established forests due to inadequate soil moisture in their later stages.
英文关键词	soil moisture spatial heterogeneity semi-arid region plantation Generalized Additive Mixed Model (GAMM)
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:001232155900001
WOS关键词	LOESS-PLATEAU ; TEMPORAL VARIABILITY ; LAND-USE ; HYDRAULIC CONDUCTIVITY ; MOISTURE VARIATION ; SPATIAL-PATTERNS ; SMALL CATCHMENT ; VEGETATION ; STABILITY ; 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/2XILL650/403792
推荐引用方式 GB/T 7714	Yang, Junjun,Guo, Lingxia,Liu, Yufeng,et al. Reforestation Will Lead to a Long-Term Downward Trend in the Water Content of the Surface Soil in a Semi-Arid Region[J],2024,15(5).
APA	Yang, Junjun,Guo, Lingxia,Liu, Yufeng,Lin, Pengfei,&Du, Jun.(2024).Reforestation Will Lead to a Long-Term Downward Trend in the Water Content of the Surface Soil in a Semi-Arid Region.FORESTS,15(5).
MLA	Yang, Junjun,et al."Reforestation Will Lead to a Long-Term Downward Trend in the Water Content of the Surface Soil in a Semi-Arid Region".FORESTS 15.5(2024).