气候变化领域集成服务门户(CCPortal): Evaporation and Transpiration From Multiple Proximal Forests and Wetlands

CCPortal

DOI	10.1029/2022WR033757
	Evaporation and Transpiration From Multiple Proximal Forests and Wetlands
	Shveytser, Victoria; Stoy, Paul C.; Butterworth, Brian; Wiesner, Susanne; Skaggs, Todd H.; Murphy, Bailey; Wutzler, Thomas; El-Madany, Tarek S.; Desai, Ankur R.
发表日期	2024
ISSN	0043-1397
EISSN	1944-7973
起始页码	60
结束页码	1
卷号	60 期号:1
英文摘要	Climate change is intensifying the hydrologic cycle and altering ecosystem function, including water flux to the atmosphere through evapotranspiration (ET). ET is made up of evaporation (E) via non-stomatal surfaces, and transpiration (T) through plant stomata which are impacted by global changes in different ways. E and T are difficult to measure independently at the ecosystem scale, especially across multiple sites that represent different land use and land management strategies. To address this gap in understanding, we applied flux variance similarity (FVS) to quantify how E and T differ across 13 different ecosystems measured using eddy covariance in a 10 x 10 km area from the CHEESEHEAD19 experiment in northern Wisconsin, USA. The study sites included eight forests with a large deciduous broadleaf component, three evergreen needleleaf forests, and two wetlands. Average T/ET for the study period averaged nearly 52% in forested sites and 45% in wetlands, with larger values after excluding periods following rain events when evaporation from canopy interception may be expected. A dominance analysis revealed that environmental variables explained on average 69% of the variance of half-hourly T, which decreased from summer to autumn. Deciduous and evergreen forests showed similar E trajectories over time despite differences in vegetation phenology, and vapor pressure deficit explained some 13% of the variance E in wetlands but only 5% or less in forests. Retrieval of E and T within a dense network of flux towers lends confidence that FVS is a promising approach for comparing ecosystem hydrology across multiple sites to improve our process-based understanding of ecosystem water fluxes. Eddy covariance-measured evapotranspiration was partitioned to transpiration and evaporation using flux variance similarity at 14 ecosystemsNet radiation explained most of the variability in transpiration, which was lowest in wetland ecosystems and vapor pressure deficit explained more of the variability of evaporation in wetlands than forestsDaily evaporation varied little over time and amongst sites from summer to autumn
英文关键词	forest; evaporation; evapotranspiration; transpiration; soil; wetland
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources
WOS类目	Environmental Sciences ; Limnology ; Water Resources
WOS记录号	WOS:001148395800001
来源期刊	WATER RESOURCES RESEARCH
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/304553
作者单位	United States Department of Agriculture (USDA); United States Forest Service; University of Wisconsin System; University of Wisconsin Madison; University of Wisconsin System; University of Wisconsin Madison; University of Wisconsin System; University of Wisconsin Madison; University of Colorado System; University of Colorado Boulder; National Oceanic Atmospheric Admin (NOAA) - USA; University of Wisconsin System; United States Department of Agriculture (USDA); Max Planck Society
推荐引用方式 GB/T 7714	Shveytser, Victoria,Stoy, Paul C.,Butterworth, Brian,et al. Evaporation and Transpiration From Multiple Proximal Forests and Wetlands[J],2024,60(1).
APA	Shveytser, Victoria.,Stoy, Paul C..,Butterworth, Brian.,Wiesner, Susanne.,Skaggs, Todd H..,...&Desai, Ankur R..(2024).Evaporation and Transpiration From Multiple Proximal Forests and Wetlands.WATER RESOURCES RESEARCH,60(1).
MLA	Shveytser, Victoria,et al."Evaporation and Transpiration From Multiple Proximal Forests and Wetlands".WATER RESOURCES RESEARCH 60.1(2024).