Assessing the Impact of Climate and Land Use Change on Water Resources in Schuylkill River Watershed

Assessing water resources under the influence of environmental change have gained attentions of scientists. The objective of this study was to analyze the impacts of land use change and climate change on water resources in terms quantity and quality in the 3S basin in the period 1981–2008 by using hydrological modeling (SWAT model). The results showed that streamflow and water quality (TSS, T-N, and T-P) tend to increase under individual and combined effects of climate change and land use change. In addition, the impact of land use change on the flow was smaller than the climate change impact. However, water balance components and water quality were equally affected by two factors of climate change and land use change. In general, the results of this study could serve as a reference for water resource management and planning in the river basin.

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Modelling the impact of Land-Use Change to Water Resources in the Uplands of Scotland

Water and Environment Journal ◽

10.1111/j.1747-6593.2000.tb00269.x ◽

2000 ◽

Vol 14 (5) ◽

pp. 325-334 ◽

Cited By ~ 1

Author(s):

D. J. Price

Keyword(s):

Land Use ◽

Water Resources ◽

Land Use Change ◽

The Impact

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Land-Use Change and Its Impact on Urban Flooding: A Case Study on Colombo District Flood on May 2016

Engineering, Technology & Applied Science Research ◽

10.48084/etasr.2578 ◽

2019 ◽

Vol 9 (2) ◽

pp. 3887-3891 ◽

Cited By ~ 2

Author(s):

T. L. Dammalage ◽

N. T. Jayasinghe

Keyword(s):

Land Use ◽

Land Use Change ◽

Urban Area ◽

Land Use Changes ◽

Entire Area ◽

Svm Classification ◽

River Watershed ◽

Detection Techniques ◽

Kelani River ◽

The Impact

Colombo district has become an increasingly congested urban society. It has been reported that the frequent flooding in the Colombo district occurs due to the shrinking of open spaces, illegal constructions, and lack of suitable waste disposal facilities. Therefore, this study focuses on analyzing the impact of land-use change on the flood of Colombo district in May 2016 in comparison to the land-use during the flood in 1989. Accordingly, Landsat images were utilized to identify the land-use by using NDVI, NDBI, and NDWI indices. Out of the several techniques examined, SVM classification was chosen, and change detection techniques in conjunction with remote sensing and GIS environment were adopted. SVM classification showed the highest accuracy for land-use classification, which was 99.0% in 1989 and 99.9% in 2016. The comparison of land-use changes of 1989 and 2016 with similar flood extent of the Colombo district proved that the area of the Kelani river watershed changed into urban area, having a significant impact on flood inundation. The Kelani river watershed includes 23% of the total urban area of the Colombo district. Similarly, the entire area of land-use transformation covered 37.7% of the area within the watershed region of the Colombo district. Eventually, this research identified the significant impact of Colombo district floods in May 2016 on land-use changes.

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Impacts of land use changes and climate variability on transboundary Hirmand River using SWAT

Journal of Water and Climate Change ◽

10.2166/wcc.2019.100 ◽

2019 ◽

Vol 11 (4) ◽

pp. 1695-1711 ◽

Cited By ~ 1

Author(s):

Mohammadreza Hajihosseini ◽

Hamidreza Hajihosseini ◽

Saeed Morid ◽

Majid Delavar ◽

Martijn J. Booij

Keyword(s):

Land Use ◽

Water Resources ◽

Land Use Change ◽

Environmental Changes ◽

Swat Model ◽

Land Use Changes ◽

River Basins ◽

Irrigated Area ◽

The Impact ◽

Annual Discharge

Abstract Many river basins are facing a reduction of flows which might be attributed to changes in climate and human activities. This issue is very important in transboundary river basins, where already existing conflicts about shared water resources between riparian countries can easily escalate. The decrease of streamflow in the transboundary Hirmand (Helmand) River is one of the main challenges for water resources management in Iran and Afghanistan. This research aims to quantify the causes of this problem which has a direct impact on the dryness of the Hamoun wetlands being an international Ramsar site. To achieve this, the land use changes in the Middle Helmand Basin (MHB) in Afghanistan were evaluated for three time periods between 1990 and 2011 using remote sensing data and the Soil and Water Assessment Tool (SWAT) Model for understanding watershed response to environmental changes. It was concluded that the total irrigated area in the region has increased from 103,000 ha in 1990 to 122,000 ha in 2001 and 167,000 ha in 2011 (62% increase). According to the results, the average annual discharge when adapting the land use during the simulations was 4,787 million cubic meters (MCM)/year and while employing the land use of 1990 from the beginning of the simulations, the average annual discharge was 5,133 MCM/year. Therefore, the agricultural developments in the Helmand basin decreased the discharge with about 346 MCM/year accompanying an increase of 64,000 ha in an irrigated area in MHB after 1990. Notably, the impact of land use change increases significantly for more recent periods and causes a reduction of 810 MCM in annual streamflow for the MHB. The amount of water depletion (i.e. actual evapotranspiration) per hectare has increased from 5,690 in 1985 to 7,320 m3 in 2012. The applied methodology of this study is useful to cope with such a data scarcity region. It can help quantify the impact of land use change on the region and formulates strategies that can improve the situation between Iran and Afghanistan.

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The Impact of Land Use Change on Water Resources in The Southern Foot Plain of Merapi

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/338/1/012031 ◽

2019 ◽

Vol 338 ◽

pp. 012031

Author(s):

Suhadi Purwantara ◽

Slamet Suprayogi ◽

M Pramono Hadi ◽

Ig L Setyawan Purnama

Keyword(s):

Land Use ◽

Water Resources ◽

Land Use Change ◽

The Impact

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Predicting future climate and land use conditions for water resources in the Schuylkill River Watershed

10.17918/d8795k ◽

2021 ◽

Author(s):

Achira Amur

Keyword(s):

Land Use ◽

Water Resources ◽

Future Climate ◽

River Watershed ◽

Schuylkill River

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Dynamics of soil organic carbon in the steppes of Russia and Kazakhstan under past and future climate and land use

Regional Environmental Change ◽

10.1007/s10113-021-01799-7 ◽

2021 ◽

Vol 21 (3) ◽

Author(s):

Susanne Rolinski ◽

Alexander V. Prishchepov ◽

Georg Guggenberger ◽

Norbert Bischoff ◽

Irina Kurganova ◽

...

Keyword(s):

Climate Change ◽

Land Use ◽

Organic Carbon ◽

Land Use Change ◽

Soil Organic Carbon ◽

Arable Land ◽

Future Climate ◽

Future Climate Change ◽

Climate Scenarios ◽

The Impact

AbstractChanges in land use and climate are the main drivers of change in soil organic matter contents. We investigated the impact of the largest policy-induced land conversion to arable land, the Virgin Lands Campaign (VLC), from 1954 to 1963, of the massive cropland abandonment after 1990 and of climate change on soil organic carbon (SOC) stocks in steppes of Russia and Kazakhstan. We simulated carbon budgets from the pre-VLC period (1900) until 2100 using a dynamic vegetation model to assess the impacts of observed land-use change as well as future climate and land-use change scenarios. The simulations suggest for the entire VLC region (266 million hectares) that the historic cropland expansion resulted in emissions of 1.6⋅ 1015 g (= 1.6 Pg) carbon between 1950 and 1965 compared to 0.6 Pg in a scenario without the expansion. From 1990 to 2100, climate change alone is projected to cause emissions of about 1.8 (± 1.1) Pg carbon. Hypothetical recultivation of the cropland that has been abandoned after the fall of the Soviet Union until 2050 may cause emissions of 3.5 (± 0.9) Pg carbon until 2100, whereas the abandonment of all cropland until 2050 would lead to sequestration of 1.8 (± 1.2) Pg carbon. For the climate scenarios based on SRES (Special Report on Emission Scenarios) emission pathways, SOC declined only moderately for constant land use but substantially with further cropland expansion. The variation of SOC in response to the climate scenarios was smaller than that in response to the land-use scenarios. This suggests that the effects of land-use change on SOC dynamics may become as relevant as those of future climate change in the Eurasian steppes.

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