干旱区生态环境知识资源中心(Arid): An Unsaturated/Saturated Coupled Hydrogeological Model for the Llamara Salt Flat, Chile, to Investigate Prosopis tamarugo Survival

Arid

DOI	10.3390/geosciences10010001
	An Unsaturated/Saturated Coupled Hydrogeological Model for the Llamara Salt Flat, Chile, to Investigate Prosopis tamarugo Survival
	Samuel, Alex; Blin, Nicole; Munoz, Jose E.; Suarez, Francisco
通讯作者	Suarez, F
来源期刊	GEOSCIENCES
EISSN	2076-3263
出版年	2020
卷号	10 期号:1
英文摘要	The Propopis tamarugo Phil, also known as Tamarugo, is an endemic and protected tree that survives in the Atacama Desert-a hyper arid and highly saline environment. The Tamarugo is threatened because of groundwater overexploitation, and its preservation depends on the soil moisture in the vadose zone, as many of the tree roots do not reach the current water table levels. To improve the estimation of soil moisture available for the Tamarugo trees, we applied a hydrogeological model that couples the unsaturated and saturated zones. The model was used to represent different groundwater exploitation and recharge scenarios between February 2006 and September 2030 to predict simultaneously groundwater levels and soil moisture. The model results show that even at locations where water table depletion is relatively small (1-1.5 m), soil moisture can drastically decrease (0.25-0.30 m(3)/m(3)). Therefore, Tamarugo survival can be better addressed, as the applied model provides a management tool to estimate response of Tamarugo trees to changing soil moisture. To further improve the model and its use to assess Tamarugo survival, more field data, such as soil hydrodynamic properties and soil moisture, should be collected. Additionally, relationships between the state of the Tamarugo trees and soil moisture should be further constructed. In this way, the developed model will be able to predict future conditions associated to the Tamarugo's health state.
英文关键词	coupled hydrogeological model MODFLOW HYDRUS unsaturated zone saturated zone Tamarugo
类型	Article
语种	英语
开放获取类型	DOAJ Gold
收录类别	ESCI
WOS记录号	WOS:000513130700001
WOS关键词	PAMPA DEL TAMARUGAL ; GROUNDWATER-DEPENDENT ECOSYSTEMS ; HYDRAULIC CONDUCTIVITY ; REGIONAL AQUIFER ; EXTRACTION ; UNCERTAINTY ; RECHARGE
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
Scopus学科分类	Ctr Desarrollo Urbano Sustentable CEDEUS, Santiago 7820436, Chile. ; Suarez, F
CSCD记录号	CSCD:CEGA, Santiago 7820436, Chile.
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/334220
作者单位	[Samuel, Alex; Blin, Nicole; Munoz, Jose E.; Suarez, Francisco] Pontificia Univ Catolica Chile, Dept Ingn Hidraul & Ambiental, Santiago 7820436, Chile; [Suarez, Francisco] Ctr Desarrollo Urbano Sustentable CEDEUS, Santiago 7820436, Chile; [Suarez, Francisco] CEGA, Santiago 7820436, Chile
推荐引用方式 GB/T 7714	Samuel, Alex,Blin, Nicole,Munoz, Jose E.,et al. An Unsaturated/Saturated Coupled Hydrogeological Model for the Llamara Salt Flat, Chile, to Investigate Prosopis tamarugo Survival[J],2020,10(1).
APA	Samuel, Alex,Blin, Nicole,Munoz, Jose E.,&Suarez, Francisco.(2020).An Unsaturated/Saturated Coupled Hydrogeological Model for the Llamara Salt Flat, Chile, to Investigate Prosopis tamarugo Survival.GEOSCIENCES,10(1).
MLA	Samuel, Alex,et al."An Unsaturated/Saturated Coupled Hydrogeological Model for the Llamara Salt Flat, Chile, to Investigate Prosopis tamarugo Survival".GEOSCIENCES 10.1(2020).