Simulated runoff responses to land use in the middle and upstream reaches of Taoerhe River basin, Northeast China, in wet, average and dry years

Li, Lijuan; Jiang, Dejuan; Hou, Xiyong; Li, Jiuyi

doi:10.1002/hyp.9481

Cited by 15 publications

(11 citation statements)

References 39 publications

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“…Calder et al [23] carried out a modelling study to investigate the impacts of LUC change from natural forest to agricultural land on a large-scale basin in Africa. Similar findings were discussed by Fohrer et al [24], Li et al [25] and Mwangi et al [26].…”

Section: Introductionsupporting

confidence: 89%

Runoff Responses to Climate and Land Use/Cover Changes under Future Scenarios

Pan

Liu

Wang

et al. 2017

Water

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Climate and land use/cover (LUC) are the two most significant factors that directly affect the runoff process. However, most research on runoff response has focused mainly on projected climate variation, while future LUC variability has been neglected. Therefore, the objective of this study is to examine the impacts of projected climate and LUC changes on runoff. -2020, 2021-2030, 2031-2040 and 2041-2050 period, abbreviated S3). These three scenarios are then input into the Soil and Water Assessment Tool (SWAT) model to assess runoff responses. Beijiang River Basin, located in southern China, is used in this case study. The results obtained from S1, S2 and S3 show that runoff change in this basin is mainly caused by climate change; warmer temperatures and greater precipitation increase runoff. LUC change has little influence on runoff at the whole-basin scale, but changes in runoff components are more notable in the urban area than in the natural region at the sub-watershed level. The impact of LUC change in urbanized region on runoff components differ obviously among the wet, normal and dry years, and surface runoff and groundwater are found to be more sensitive to urbanization. Runoff depth is predicted to increase in this basin under the impacts of both climate and LUC changes in the future. Climate change brings greater increase in water yield and surface runoff, whereas LUC change leads to changes in allocation between surface runoff and groundwater in the urban region.

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Section: Introductionsupporting

confidence: 89%

Runoff Responses to Climate and Land Use/Cover Changes under Future Scenarios

Pan

Liu

Wang

et al. 2017

Water

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“…The model separates selected basin to subbasins and hydrologic response units (HRU) comprised of identical hydrological properties such as land use, soil, and slope [43]. SWAT is an efficient tool to predict the impact of nitrogen cycle and land management practices on water, sediment, nutrient, and pesticide with the ArcSWAT module [44]. The nitrogen cycle can be represented by the SWAT model in the soil profile and ) and three pools that are organic forms of nitrogen in the soil [45][46][47].…”

Section: Swat Model Descriptionmentioning

confidence: 99%

Modeling Agricultural Land Management to Improve Understanding of Nitrogen Leaching in an Irrigated Mediterranean Area in Southern Turkey

Karnez¹,

Sagir²,

Gavan³

et al. 2017

Water Quality

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Nitrogen (N) cycle dynamics and its transport in the ecosystem were always an attracting subject for the researchers. Calculation of N budget in agricultural systems with use of different empirical statistical methods is common practice in OECD and EU countries. However, these methodologies do not include climate and water cycle as part of the process. On the other hand, big scale studies are labor and work intensive. As a solution, various computer modeling approaches have been used to predict N budget and related N parameters. One of them is internationally established Soil and Water Assessment (SWAT) model, which was developed especially for modeling agricultural catchments. The aim of this study was to improve understanding of N leaching with simulation of agricultural land management (fertilization, irrigation, and plant species) in hydrological heavily modified watershed with irrigation-depended agriculture under Mediterranean climate. The study was conducted in Lower Seyhan River Plain Irrigation District (Akarsu) of 9495 ha in Cukurova region of southern Turkey. Intensive and extensive water and nitrogen monitoring data (2008)(2009)(2010)(2011)(2012)(2013)(2014), soil properties, cropping pattern, and crop rotation were used for the SWAT model build, calibration, and validation of the model.

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“…Their objectives are to investigate the impacts of environmental changes on hydrologic cycles and related resources at the global, regional, and catchment scales (Xia and Tan 2002;Li et al 2013). The investigation of the hydrologic responses to environmental changes has become a hotspot topic, especially within the water science community (Xia and Tan 2002).…”

Section: Introductionmentioning

confidence: 99%

Hydrological Responses to Land-Use Change Scenarios under Constant and Changed Climatic Conditions

Zhang

et al. 2015

Environmental Management

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This study quantified the hydrological responses to land-use change scenarios in the upper and middle Heihe River basin (HRB), northwest China, under constant and changed climatic conditions by combining a land-use/cover change model (dynamic conversion of land use and its effects, Dyna-CLUE) and a hydrological model (soil and water assessment tool, SWAT). Five land-use change scenarios, i.e., historical trend (HT), ecological protection (EP), strict ecological protection (SEP), economic development (ED), and rapid economic development (RED) scenarios, were established. Under constant climatic condition, hydrological variations are only induced by land-use changes in different scenarios. The changes in mean streamflow at the outlets of the upper and the middle HRB are not pronounced, although the different scenarios produce different outcomes. However, more pronounced changes are observed on a subbasin level. The frequency of extreme flood is projected to decrease under the SEP scenario, while under the other scenarios, no changes can be found. Two emission scenarios (A1B and B1) of three general circulation models (HadCM3, CGCM3, and CCSM3) were employed to generate future possible climatic conditions. Under changed climatic condition, hydrological variations are induced by the combination of land-use and climatic changes. The results indicate that the impacts of land-use changes become secondary when the changed climatic conditions have been considered. The frequencies of extreme flood and drought are projected to decrease and increase, respectively, under all climate scenarios. Although some agreements can be reached, pronounced difference of hydrological responses can be observed for different climate scenarios of different GCMs.

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Simulated runoff responses to land use in the middle and upstream reaches of Taoerhe River basin, Northeast China, in wet, average and dry years

Cited by 15 publications

References 39 publications

Runoff Responses to Climate and Land Use/Cover Changes under Future Scenarios

Runoff Responses to Climate and Land Use/Cover Changes under Future Scenarios

Modeling Agricultural Land Management to Improve Understanding of Nitrogen Leaching in an Irrigated Mediterranean Area in Southern Turkey

Hydrological Responses to Land-Use Change Scenarios under Constant and Changed Climatic Conditions

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