气候变化领域集成服务门户(CCPortal): Assessing impacts of alternative land use strategies on water partitioning, storage and ages in drought-sensitive lowland catchments using tracer-aided ecohydrological modelling

CCPortal

DOI	10.1002/hyp.15126
	Assessing impacts of alternative land use strategies on water partitioning, storage and ages in drought-sensitive lowland catchments using tracer-aided ecohydrological modelling
	Luo, Shuxin; Tetzlaff, Doerthe; Smith, Aaron; Soulsby, Chris
发表日期	2024
ISSN	0885-6087
EISSN	1099-1085
起始页码	38
结束页码	4
卷号	38 期号:4
英文摘要	Continuing negative rainfall anomalies, coupled with climate change projections of increased drought severity and frequency, drive an urgent need to increase resilience and integration in land and water management strategies in many regions of the world. However, complex interactions between land cover change, ecohydrological partitioning and water availability are difficult to quantify, especially at different temporal and spatial scales. In conjunction with local stakeholders, we developed plausible, alternative land use scenarios (including forest diversification and agroforestry schemes) based on the existing four primary land use types (i.e., conifer and broadleaved forests, arable agriculture, and pasture) in a 66 km2 drought-sensitive catchment in northern Germany. We used modelling to evaluate spatial and temporal changes in water flux partitioning, storage and ages. The spatially-distributed, tracer-aided ecohydrological model, EcH2O-iso, calibrated using hydrometric, ecohydrological and isotopic data at daily time steps from 2007 to 2019 was used in this assessment. The results showed that replacing conifer forests with uneven-aged mixed forests with younger broad-leaved trees had the greatest potential for reducing total evapotranspiration and increasing groundwater recharge. For coniferous forests, a 50% increase in the proportion of broad-leaved trees was projected to result in an 11% increase in groundwater recharge across the catchment. The mixed-forest management alternatives also reduced groundwater turnover times, which would support more rapid recovery of soil moisture and groundwater stores following droughts. This study demonstrates that such an ecohydrological modelling approach has the potential to contribute useful science-based evidence for policy makers allowing quantitative assessment of potential land use effects on water availability and effective communication with stakeholders. Uneven-aged mixed forests of conifer and broadleaved trees had the greatest impact on reducing evapotranspiration and increasing water storage in the catchment. image
英文关键词	drought; ecohydrological modelling; land use; tracers; water age; water partitioning
语种	英语
WOS研究方向	Water Resources
WOS类目	Water Resources
WOS记录号	WOS:001195240600001
来源期刊	HYDROLOGICAL PROCESSES
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/301939
作者单位	Humboldt University of Berlin; Leibniz Institut fur Gewasserokologie und Binnenfischerei (IGB); University of Aberdeen
推荐引用方式 GB/T 7714	Luo, Shuxin,Tetzlaff, Doerthe,Smith, Aaron,et al. Assessing impacts of alternative land use strategies on water partitioning, storage and ages in drought-sensitive lowland catchments using tracer-aided ecohydrological modelling[J],2024,38(4).
APA	Luo, Shuxin,Tetzlaff, Doerthe,Smith, Aaron,&Soulsby, Chris.(2024).Assessing impacts of alternative land use strategies on water partitioning, storage and ages in drought-sensitive lowland catchments using tracer-aided ecohydrological modelling.HYDROLOGICAL PROCESSES,38(4).
MLA	Luo, Shuxin,et al."Assessing impacts of alternative land use strategies on water partitioning, storage and ages in drought-sensitive lowland catchments using tracer-aided ecohydrological modelling".HYDROLOGICAL PROCESSES 38.4(2024).