干旱区生态环境知识资源中心(Arid): Estimating deep soil water depletion and availability under planted forest on the Loess Plateau, China

Arid

DOI	10.1016/j.scitotenv.2024.172228
	Estimating deep soil water depletion and availability under planted forest on the Loess Plateau, China
	Li, Peng; Li, Huijie; Si, Bingcheng
通讯作者	Li, HJ ; Si, BC
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2024
卷号	929
英文摘要	Deep soil water (DSW) plays a pivotal role in tree growth, susceptibility to drought-induced mortality, and belowground carbon and nutrient cycling. Assessing DSW depletion is essential for evaluating the resilience and sustainability of planted forests. But, due to the poor accessibility of deep soil layers, little is known about large scale DSW depletion. In this study, we leverage the concept that plants are reliable indicators of deep soil water to estimate DSW depletion in planted forests within the arid and semi-arid regions of the Chinese Loess Plateau (CLP). Our approach involves establishing a model that correlates forest age with DSW depletion. We then employ this model to estimate DSW depletion across the region, utilizing readily available data on the distribution of forest age and utilize the boundary models to consider the variability of DSW depletion estimated with forest age. Our results indicate that the model effectively estimates DSW depletion in planted forests, demonstrating a strong fit with an R2 of 0.71 and a low root mean square error (RMSE) of 332 mm. Notably, a substantial portion of the planted forest areas on the CLP has experienced DSW depletion from 800 mm to 1600 mm, and totaling 2.41 x 1010 m3 DSW depletion from 1995 to 2020 based on the general model. However, the available DSW in the existing planted forests on the CLP is estimated at only 1.73 x 1010 m3 by 2038. This suggests that there is potential risks and unsustainability for further afforestation efforts and carbon sequestration on the CLP under the current continuous afforestation measures. Our study holds significant implications
英文关键词	Deep soil water depletion Forest age Planted forest Remote sensing Afforestation
类型	Article
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:001234492400001
WOS关键词	APPLE-TREES ; GROUNDWATER RECHARGE ; MOISTURE ; ZONE ; GROWTH ; ROOTS ; DYNAMICS ; STORAGE ; YIELD ; SCALE
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/405492
推荐引用方式 GB/T 7714	Li, Peng,Li, Huijie,Si, Bingcheng. Estimating deep soil water depletion and availability under planted forest on the Loess Plateau, China[J],2024,929.
APA	Li, Peng,Li, Huijie,&Si, Bingcheng.(2024).Estimating deep soil water depletion and availability under planted forest on the Loess Plateau, China.SCIENCE OF THE TOTAL ENVIRONMENT,929.
MLA	Li, Peng,et al."Estimating deep soil water depletion and availability under planted forest on the Loess Plateau, China".SCIENCE OF THE TOTAL ENVIRONMENT 929(2024).