Land Use/Cover Change Impacts on Hydrology in Large River Basins

Cuo, Lan

doi:10.1002/9781118971772.ch6

Cited by 22 publications

(12 citation statements)

References 161 publications

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“…The former, that is, climate change (CC), affects the hydrologic cycle, such as in precipitation and evaporation [5]. The latter primarily refers to land use/cover change (LUCC) caused by human activities, such as deforestation, urbanization, cropland expansion, and reservoir operation, which affect landscape morphological and physiological properties by altering albedo, leaf area index (LAI), surface roughness, soil infiltration rate, and interruption of stream channels, among others [6,7].…”

Section: Introductionmentioning

confidence: 99%

“…Regional or localized knowledge is especially important for the Tibetan Plateau, which hosts the numerous smalland meso-scale headwaters of large rivers in Asia, including the Yellow, the Yangtze, the Mekong, the Indus, the Salween, and the Tarim, [17][18][19][20].Quite a few studies on CC and LUCC impacts on hydrology have substantially sprung up in the last 50 years [7]. The earliest review articles examined the LUCC effects on the basis of paired catchment studies [21-23], but the approach was only suitable for small catchments (<10 km 2 ) that have uniform vegetation cover and the same climate, contributing little to water resource management, which usually covers varied land cover types and climate conditions [7]. Recent studies employed statistical methods [24][25][26] and hydrological models [10,17,20,27,28] to assess the impacts from both CC and LUCC.…”

mentioning

confidence: 99%

“…Quite a few studies on CC and LUCC impacts on hydrology have substantially sprung up in the last 50 years [7]. The earliest review articles examined the LUCC effects on the basis of paired catchment studies [21-23], but the approach was only suitable for small catchments (<10 km 2 ) that have uniform vegetation cover and the same climate, contributing little to water resource management, which usually covers varied land cover types and climate conditions [7].…”

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confidence: 99%

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Impacts of Climate Change and Land Use/Cover Change on Streamflow in Beichuan River Basin in Qinghai Province, China

Liu

Cuo

Li³

et al. 2020

Water

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Climate change (CC) and land use/cover change (LUCC) are the main drivers of streamflow change. In this study, the effects of CC and LUCC on streamflow regime as well as their spatial variability were examined by using the Distributed Hydrology Soil Vegetation Model (DHSVM) for the Beichuan River Basin in the northeast Tibetan Plateau. The results showed that CC increased annual and maximum streamflow in the upstream but decreased them in the downstream. CC also enhanced minimum streamflow in the whole river basin and advanced the occurrence of daily minimum streamflow. Temperature change exerted greater influence on streamflow regime than wind speed change did in most situations, but the impact of wind speed on streamflow reflected the characteristics of accumulative effects, which may require more attention in future, especially in large river basins. As for LUCC, cropland expansion and reservoir operation were the primary reasons for streamflow reduction. Cropland expansion contributed more to annual mean streamflow change, whereas reservoir operation greatly altered monthly streamflow pattern and extreme streamflow. Reservoir regulation also postponed the timing of minimum streamflow and extended durations of average, high, and low streamflow. Spatially, CC and LUCC played predominant roles in the upstream and the downstream, respectively.Hydrological response to CC and LUCC at global or large basin scales help us to understand the general condition of the impacts [7-9]. However, significant spatiotemporal variations of CC and LUCC in different regions indicate that regional or local responses deviate from the general conditions. Further, understanding regional or local hydrological responses is especially relevant to everyday people's life, as the knowledge can be directly used in water resources management [10-16]. Regional or localized knowledge is especially important for the Tibetan Plateau, which hosts the numerous smalland meso-scale headwaters of large rivers in Asia, including the Yellow, the Yangtze, the Mekong, the Indus, the Salween, and the Tarim, [17][18][19][20].Quite a few studies on CC and LUCC impacts on hydrology have substantially sprung up in the last 50 years [7]. The earliest review articles examined the LUCC effects on the basis of paired catchment studies [21-23], but the approach was only suitable for small catchments (<10 km 2 ) that have uniform vegetation cover and the same climate, contributing little to water resource management, which usually covers varied land cover types and climate conditions [7]. Recent studies employed statistical methods [24][25][26] and hydrological models [10,17,20,27,28] to assess the impacts from both CC and LUCC. Statistical methods are simple and effective [29], but reveal few physical mechanisms. Moreover, this method is generally applied to describe interannual and interdecadal hydrological processes due to the foundation of equations based on annual or multi-year average [30]. Physically-based hydrological models, especially distributed hydrologi...

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Section: Introductionmentioning

confidence: 99%

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Impacts of Climate Change and Land Use/Cover Change on Streamflow in Beichuan River Basin in Qinghai Province, China

Liu

Cuo

Li³

et al. 2020

Water

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“…Vegetation dynamics can directly affect water, energy and carbon balances in the coupled land-atmosphere system by responding and providing feedbacks to climate change (Bonan et al, 1992(Bonan et al, , 2003Rogers et al, 2013;Ahlstrom et al, 2015;Mengis et al, 2015;Paschalis et al, 2015;Peterman et al, 2015;Sitch et al, 2015;Cuo, 2016). In recent years, dynamic global vegetation models (DGVMs) coupled with atmospheric processes have become valuable tools for examining and understanding the interactive dynamics in carbon, water, and energy exchanges between biosphere and atmosphere.…”

Section: Introductionmentioning

confidence: 99%

Simulated annual changes in plant functional types and their responses to climate change on the northern Tibetan Plateau

et al. 2016

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Abstract. Changes in plant functional types (PFTs) have important implications for both climate and water resources. Still, little is known about whether and how PFTs have changed over the past decades on the northern Tibetan Plateau (NTP) where several of the top largest rivers in the world are originated. Also, the relative importance of atmospheric conditions vs. soil physical conditions in affecting PFTs is unknown on the NTP. In this study, we used the improved Lund-Potsdam-Jena Dynamic Global Vegetation Model to investigate PFT changes through examining the changes in foliar projective coverages (FPCs) during 1957-2009 and their responses to changes in root zone soil temperature, soil moisture, air temperature, precipitation and CO 2 concentrations. The results show spatially heterogeneous changes in FPCs across the NTP during 1957-2009, with 34 % (13 %) of the region showing increasing (decreasing) trends. Dominant drivers responsible for the observed FPC changes vary with regions and vegetation types, but overall, precipitation is the major factor in determining FPC changes on the NTP with positive impacts. Soil temperature increase exhibits small but negative impacts on FPCs. Different responses of individual FPCs to regionally varying climate change result in spatially heterogeneous patterns of vegetation changes on the NTP. The implication of the study is that fresh water resources in one of the world's largest and most important headwater basins and the onset and intensity of Asian monsoon circulations could be affected because of the changes in FPCs on the NTP.

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“…As alterações em larga escala do uso do solo e da cobertura vegetal (land use/cover change -LUCC) têm-se intensificado no último século devido principalmente a atividades antropogênicas como a expansão agrícola e urbana (MEYER;TURNER, 1992;RAMANKUTTY et al, 2006). LUCC pode afetar processos hidrológicos como a evapotranspiração, interceptação, infiltração e escoamento superficial ao alterar diretamente as condições morfológicas e fisiológicas da paisagem, e ao indiretamente modificar o solo e a atmosfera (MOLINA-NAVARRO et al, 2014;CUO, 2016). A avaliação dos impactos ocasionados por LUCC tem tido considerável atenção na comunidade científica e nos meios políticos no contexto do aumento da escassez hídrica (WANG et al, 2013;GAO et al, 2016;WAGNER et al, 2017).…”

Section: Mudanças De Uso E Cobertura Do Solounclassified

Modelagem dos impactos hidrológicos decorrentes de alterações do uso e ocupação do solo em bacia hidrográfica rural

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Land Use/Cover Change Impacts on Hydrology in Large River Basins

Cited by 22 publications

References 161 publications

Impacts of Climate Change and Land Use/Cover Change on Streamflow in Beichuan River Basin in Qinghai Province, China

Impacts of Climate Change and Land Use/Cover Change on Streamflow in Beichuan River Basin in Qinghai Province, China

Simulated annual changes in plant functional types and their responses to climate change on the northern Tibetan Plateau

Modelagem dos impactos hidrológicos decorrentes de alterações do uso e ocupação do solo em bacia hidrográfica rural

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