Biospheric Aspects of the Hydrological Cycle

Hutjes, Ronald; Kabat, P.; Running, Steven W.; Shuttleworth, W. James; Field, Christopher B.; Bass, Brad; Dias, Mirella; Avissar, Roni; Becker, Alfred; Claußen, Martin; Dolman, A. J.; Feddes, R.A.; Fosberg, M. A.; Fukushima, Yoshihiro; Gash, J. H. C.; Guenni, Lelys Bravo de; Hoff, Holger; Jarvis, P. G.; Kayane, Isamu; Krenke, A. N.; Liu, Changming; Meybeck, Michel; Nobre, Carlos A.; Oyebande, Lekan; Pitman, Andrew J.; Pielke, Roger A.; Raupach, Michael; Saugier, B.; Schulze, Ernst Detlef; Sellers, P. J.; Tenhunen, John; Валентини, Р.; Victória, Reynaldo Luiz; Vörösmarty, Charles J

doi:10.1016/s0022-1694(98)00255-8

Cited by 100 publications

(62 citation statements)

References 53 publications

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“…The terrestrial hydrological cycle is essential for the functioning and sustainability of earth systems (Hutjes et al, 1998). Understanding its spatial and temporal variations and underlying driving factors are fundamental to predicting the response and feedback of terrestrial ecosystems to global changes.…”

Section: Introductionmentioning

confidence: 99%

Evapotranspiration and water yield over China's landmass from 2000 to 2010

Liu

Zhou

et al. 2013

Hydrol. Earth Syst. Sci.

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Abstract. Terrestrial carbon and water cycles are interactively linked at various spatial and temporal scales. Evapotranspiration (ET) plays a key role in the terrestrial water cycle, altering carbon sequestration of terrestrial ecosystems. The study of ET and its response to climate and vegetation changes is critical in China because water availability is a limiting factor for the functioning of terrestrial ecosystems in vast arid and semiarid regions. To constrain uncertainties in ET estimation, the process-based Boreal Ecosystem Productivity Simulator (BEPS) model was employed in conjunction with a newly developed leaf area index (LAI) data set, MODIS land cover, meteorological, and soil data to simulate daily ET and water yield at a spatial resolution of 500 m over China for the period from 2000 to 2010. The spatial and temporal variations of ET and water yield were analyzed. The influences of climatic factors (temperature and precipitation) and vegetation (land cover types and LAI) on these variations were assessed.Validations against ET measured at five ChinaFLUX sites showed that the BEPS model was able to simulate daily and annual ET well at site scales. Simulated annual ET exhibited a distinguishable southeast to northwest decreasing gradient, corresponding to climate conditions and vegetation types. It increased with the increase of LAI in 74 % of China's landmass and was positively correlated with temperature in most areas of southwest, south, east, and central China. The correlation between annual ET and precipitation was positive in the arid and semiarid areas of northwest and north China, but negative in the Tibetan Plateau and humid southeast China. The national annual ET varied from 345.5 mm in 2001 to 387.8 mm in 2005, with an average of 369.8 mm during the study period. The overall rate of increase, 1.7 mm yr −1 (R 2 = 0.18, p = 0.19), was mainly driven by the increase of total ET in forests. During 2006During -2009 and LAI decreased widely and consequently caused a detectable decrease in national total ET. Annual ET increased over 62.2 % of China's landmass, especially in the cropland areas of the southern Haihe River basin, most of the Huaihe River basin, and the southeastern Yangtze River basin. It decreased in parts of northeast, north, northwest, south China, especially in eastern Qinghai-Tibetan Plateau, the south of Yunnan Province, and Hainan Province. Reduction in precipitation and increase in ET caused vast regions in China, especially the regions south of Yangtze River, to experience significant decreases in water yield, while some sporadically distributed areas experienced increases in water yield. This study shows that the terrestrial water cycles in China's terrestrial ecosystems appear to have been intensified by recent climatic variability and human induced vegetation changes.

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Section: Introductionmentioning

confidence: 99%

Evapotranspiration and water yield over China's landmass from 2000 to 2010

Liu

Zhou

et al. 2013

Hydrol. Earth Syst. Sci.

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“…Water 2016, 8,11 3/17 soil plain in the central part. With the implementation of the Ecological Water Transfer Project (EWTP) of the Heihe River Basin from 2001, unified allocation of water resources is processed through the entire basin.…”

Section: Study Areamentioning

confidence: 99%

“…Water 2016, 8,11 14/17 recharge. The Ecological Water Transfer Project tremendously limits the usage of surface water; meanwhile, the development of irrigation wells and the increase of industrial water usage, whose main water supply is groundwater, increase groundwater demand.…”

Section: The Response Of Groundwater Depth To Land Use/cover Changementioning

confidence: 99%

“…Moreover, in the LUCC research plans established by IGBP and IHDP, one core problem is to understand the impact of the regional land use and land cover changes on hydrological process and water resources. LUCC is a driving factor for changes of regional climate and hydrology [8][9][10]. It can significantly affect hydrological processes (the rain interception of vegetation, the infiltration capacities of soil and the evaporation rate at the surface) and runoff mechanisms, and thus influence groundwater recharge and discharge [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

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Land Use/Cover Change Impacts on Water Table Change over 25 Years in a Desert-Oasis Transition Zone of the Heihe River Basin, China

Wang

Gao

Wang

2015

Water

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Groundwater resources are becoming the primary factor for maintaining life in arid areas. Understanding land use/cover change and its effect on groundwater depth would enhance land use and groundwater management for typical desert-oasis transition zones. Reduction of groundwater recharge and increase of groundwater exploitation during 1985 and 2010 led to the decrease of groundwater depth in Linze County. The region with groundwater depth less than 5 m decreased by 187 km 2 from 1985 to 2010 as a result of industrial growth, agricultural and economic development. Land use has undergone significant spatial and temporal changes. Farmland and built up land expanded by 53.02% and 30.91%, respectively. The expansion of farmland reached a peak between 1996 and 2005 with an increasing rate of 25.70%, while areas of grassland, woodland, water body and unused land decreased, and the decreasing rate was 9.38%, 58.35% and 19.81%. From 1985 to 2010, the groundwater depth rose slightly (0-1.2 m) in the edge of desert (24.21 km 2 ), which was caused by the surrounding farmland irrigation recharge. The drawdown range of groundwater depth between 0 and 3 m was distributed in the central oasis, which was caused by the expansion of farmland and degradation of natural vegetation. This study aims to provide a basis for the reasonable utilization of water resources, the formation of management strategies, as well as to provide ecosystem stability and sustainable development of oases in the study area.

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“…In turn, vegetation growth and productivity are closely coupled with the water cycle via the carbon cycle, with feedbacks traceable at the global scale (Hutjes et al, 1998;Donohue et al, 2007;Peel et al, 2010;Ito and Inatomi, 2012). Hence, one may pose the question how important vegetation-water interactions actually are in the Anthropocene, i.e.…”

Section: Introductionmentioning

confidence: 99%

A vital link: water and vegetation in the Anthropocene

Gerten

2013

Hydrol. Earth Syst. Sci.

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Abstract. This paper argues that the interplay of water, carbon and vegetation dynamics fundamentally links some global trends in the current and conceivable future Anthropocene, such as cropland expansion, freshwater use, and climate change and its impacts. Based on a review of recent literature including geographically explicit simulation studies with the process-based LPJmL global biosphere model, it demonstrates that the connectivity of water and vegetation dynamics is vital for water security, food security and (terrestrial) ecosystem dynamics alike. The water limitation of net primary production of both natural and agricultural plantsalready pronounced in many regions -is shown to increase in many places under projected climate change, though this development is partially offset by water-saving direct CO 2 effects. Natural vegetation can to some degree adapt dynamically to higher water limitation, but agricultural crops usually require some form of active management to overcome it -among them irrigation, soil conservation and eventually shifts of cropland to areas that are less water-limited due to more favourable climatic conditions. While crucial to secure food production for a growing world population, such human interventions in water-vegetation systems have, as also shown, repercussions on the water cycle. Indeed, land use changes are shown to be the second-most important influence on the terrestrial water balance in recent times. Furthermore, climate change (warming and precipitation changes) will in many regions increase irrigation demand and decrease water availability, impeding rainfed and irrigated food production (if not CO 2 effects counterbalance this impact -which is unlikely at least in poorly managed systems). Drawing from these exemplary investigations, some research perspectives on how to further improve our knowledge of human-watervegetation interactions in the Anthropocene are outlined.

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Biospheric Aspects of the Hydrological Cycle

Cited by 100 publications

References 53 publications

Evapotranspiration and water yield over China's landmass from 2000 to 2010

Evapotranspiration and water yield over China's landmass from 2000 to 2010

Land Use/Cover Change Impacts on Water Table Change over 25 Years in a Desert-Oasis Transition Zone of the Heihe River Basin, China

A vital link: water and vegetation in the Anthropocene

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