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DOI	10.5194/hess-22-567-2018
	Dominant effect of increasing forest biomass on evapotranspiration: Interpretations of movement in Budyko space
	Jaramillo F.; Cory N.; Arheimer B.; Laudon H.; Van Der Velde Y.; Hasper T.B.; Teutschbein C.; Uddling J.
发表日期	2018
ISSN	1027-5606
起始页码	567
结束页码	580
卷号	22 期号:1
英文摘要	During the last 6 decades, forest biomass has increased in Sweden mainly due to forest management, with a possible increasing effect on evapotranspiration. However, increasing global CO2 concentrations may also trigger physiological water-saving responses in broadleaf tree species, and to a lesser degree in some needleleaf conifer species, inducing an opposite effect. Additionally, changes in other forest attributes may also affect evapotranspiration. In this study, we aimed to detect the dominating effect(s) of forest change on evapotranspiration by studying changes in the ratio of actual evapotranspiration to precipitation, known as the evaporative ratio, during the period 1961-2012. We first used the Budyko framework of water and energy availability at the basin scale to study the hydroclimatic movements in Budyko space of 65 temperate and boreal basins during this period. We found that movements in Budyko space could not be explained by climatic changes in precipitation and potential evapotranspiration in 60% of these basins, suggesting the existence of other dominant drivers of hydroclimatic change. In both the temperate and boreal basin groups studied, a negative climatic effect on the evaporative ratio was counteracted by a positive residual effect. The positive residual effect occurred along with increasing standing forest biomass in the temperate and boreal basin groups, increasing forest cover in the temperate basin group and no apparent changes in forest species composition in any group. From the three forest attributes, standing forest biomass was the one that could explain most of the variance of the residual effect in both basin groups. These results further suggest that the water-saving response to increasing CO2 in these forests is either negligible or overridden by the opposite effect of the increasing forest biomass. Thus, we conclude that increasing standing forest biomass is the dominant driver of long-term and large-scale evapotranspiration changes in Swedish forests. © 2018 Author(s).
语种	英语
scopus关键词	Biomass; Carbon dioxide; Forestry; Physiological models; Water conservation; Actual evapotranspiration; Climatic changes; Climatic effects; CO2 concentration; Increasing effect; Potential evapotranspiration; Residual effects; Water and energies; Evapotranspiration; biomass; carbon dioxide; climate change; climate effect; coniferous tree; dominance; forest cover; potential evapotranspiration; precipitation (climatology); temperate environment; Sweden; Coniferophyta
来源期刊	Hydrology and Earth System Sciences
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/160139
作者单位	Jaramillo, F., Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, 40530, Sweden, Department of Physical Geography, Stockholm University, Stockholm, 106 91, Sweden, Stockholm Resilience Center, Stockholm University, Stockholm, 106 91, Sweden; Cory, N., Department of Forest Resource Management, Division of Forest Resource Data, Swedish University of Agricultural Sciences, Umeä, Sweden; Arheimer, B., Swedish Meteorological and Hydrological Institute, Norrköping, 601 76, Sweden; Laudon, H., Department of Forest Ecology and Management, Swedish University of Agricultural Sciences, Umeä, 750 07, Sweden; Van Der Velde, Y., Faculty of Earth and Life Sciences, University of Amsterdam, HV, Amsterdam, 1081, Netherlands; Hasper, T.B., Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, 40530, Sweden; Teutschbein, C., Department of Earth Sciences, Uppsala University, Uppsala, 75236, Sweden; Uddling, J., Department of Biological and Environme...
推荐引用方式 GB/T 7714	Jaramillo F.,Cory N.,Arheimer B.,et al. Dominant effect of increasing forest biomass on evapotranspiration: Interpretations of movement in Budyko space[J],2018,22(1).
APA	Jaramillo F..,Cory N..,Arheimer B..,Laudon H..,Van Der Velde Y..,...&Uddling J..(2018).Dominant effect of increasing forest biomass on evapotranspiration: Interpretations of movement in Budyko space.Hydrology and Earth System Sciences,22(1).
MLA	Jaramillo F.,et al."Dominant effect of increasing forest biomass on evapotranspiration: Interpretations of movement in Budyko space".Hydrology and Earth System Sciences 22.1(2018).