Spatiotemporal Dynamics of Land Surface Temperature and Its Impact on the Vegetation

Solangi, Ghulam Shabir; Siyal, Altaf Ali; Siyal, Pirah

doi:10.28991/cej-2019-03091368

Cited by 70 publications

(20 citation statements)

References 21 publications

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“…The land surface temperature affected land use, land cover, vegetated areas, water resources, etc. [5]. East Nusa Tenggara which has semi-arid conditions, is of course also affected by the land surface temperature.…”

Section: Introductionmentioning

confidence: 99%

Curve Number Estimation for Ungauged Watershed in Semi-Arid Region

et al. 2021

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The Benanain Watershed is located in East Nusa Tenggara with an area of 3,181 km2 and is divided into 29 sub-watersheds. The East Nusa Tenggara itself is an eastern region of Indonesia with a unique climate condition called semi-arid. The high rainfall intensity occurring in short duration results in large surface runoff and erosion. Floods and erosion in semi-arid areas due to sensitive soils to drought and heavy rainfall extremely. This paper presents the application of the Soil Conservation Services-Curve Number (SCS-CN) real-flood flows through a digital map of soil type, land use, topography, and the heterogeneity of physical condition, especially for ungauged watersheds. The method used is an approach empirical to estimate runoff from the relationship between rainfall, land use, and soil hydrology groups. This watershed has a large area that must analyze every sub-watershed. The land-use of the Benanain watershed is secondary dryland forest by 44.26% and the hydrological soil group on the B group classification with medium to high absorption potential by 46.502% from the total area. The curve number value of the Benanain Watershed ranges from 56.54 to 73.90, where the mean CN value of 65.32. The rainfall (mm) for the 29 sub-watersheds in the Benanain Watershed has decreased by about 74.65% when being surface runoff or only 25.35% of water becomes surface runoff. The relationship between rainfall depth and CN is classified as standard response and trend line (flat slope) equilibrium occurs when rainfall depth value of 56.71 mm and CN is close to 66.30. The high variability of intense rainfall between the rainy season and the dry season had a significant influence on the curve number value in a large watershed area. Further analysis will be more accurate if it is supported by long rainfall data and observation runoff data as a control. Doi: 10.28991/cej-2021-03091711 Full Text: PDF

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Section: Introductionmentioning

confidence: 99%

Curve Number Estimation for Ungauged Watershed in Semi-Arid Region

et al. 2021

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“…The future projection indicates to increase in precipitation amounts in the rainy and winter season and diminishes in summer season under all future scenarios. The seasonal temperature changes analysis for all areas, the future temperature are predicted to steadily increase with higher rates during summer than the other two seasons [4].…”

Section: Introductionmentioning

confidence: 93%

Simulating Soil Organic Carbon Dynamics under Climate Change Scenarios in an Arid Ecosystem

Derakhshan¹,

Abdi²,

Toranjzar³

et al. 2021

Pol. J. Environ. Stud.

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Land use change and climate have significant effects on decomposition of soil's organic carbon and ultimately carbon dioxide (CO 2 ) emissions from the soil into the atmosphere. The Rothamsted carbon model is one of the most widely used models in studies related to soil carbon sequestration which is applied in many studies to investigate the effect of climate change on soil carbon storage. The purpose of the present study is to investigate the effect of land uses of native rangeland, restoration rangeland, cattle-grazed rangeland, agro-ecosystem, as well as simulating the effect of two climate scenarios on soil carbon storage using the Roth C model on the four mentioned type of lands in the Markazi Province, Iran for 33 years . In this study, 102 soil samples were taken to determine soil organic carbon and other soil characteristics and SOC stock were calculated at a depth of 0-30 cm in each land use. The results showed that due to the restoration rangeland, after 8 years, there was a significant increase in SOC stock (17.76%), and after 17 years, in farm use, there was a (3.47%) decrease in the amount of SOC stock compared to the local rangeland of the area (control rangeland) in the Markazi Province, Iran. The simulation results of RothC model also showed that SOC stock in 2050 in treatment of the local, the restoration, the cattle-grazed and the cultivated rangelands and also due to the climate change will decrease 6.28%, 16.09%, 13.12%, and 7.28%, respectively.

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“…Literature shows that elevation and mean slope speed up soil erosion which pollute surface waters [4,9]. Dynamics of land use, socioeconomic activities and fertilizer application causes spatiotemporal variation in surface water quality [10]. Fertilization and irrigation have strong consequences on water-land use relationship [11].…”

Section: Introductionmentioning

confidence: 99%

Complex Linkage between Watershed Attributes and Surface Water Quality: Gaining Insight via Path Analysis

et al. 2021

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Understanding the influence of various variables on surface water quality is extremely important for protecting ecosystem health. The principal aim of this study is to assess the direct (DE), indirect (IE) and total effects (TE) of socio-economic, terrestrial and hydrological factors on surface water quality via path analysis through the lens of 15 sub-basins located on Indus basin, Pakistan. Four path models were selected based on Comparative Fit Index (CFI) = 0.999 value. First path model showed that rangelands having low population density decline river runoff which decreases instream Electrical Conductivity (EC) because of lower anthropogenic activities. Second path model depicted that croplands having higher population density enhance river runoff due to irrigation tail water discharge which decline instream EC because of dilution. Third path model showed that croplands with higher population density enhance river runoff which increases instream NO3 concentration because of unscientific application of irrigation water. Fourth path model unveiled that croplands enhance Gross Domestic Product (GDP) which enhance river runoff and instream NO3 concentration. To protect ecosystem health, Best Management Practices (BMPs), precision farming and modern irrigation techniques should be adopted to reduce irrigation tail water discharges containing pollutants entry in Indus River. Doi: 10.28991/cej-2021-03091683 Full Text: PDF

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Spatiotemporal Dynamics of Land Surface Temperature and Its Impact on the Vegetation

Cited by 70 publications

References 21 publications

Curve Number Estimation for Ungauged Watershed in Semi-Arid Region

Curve Number Estimation for Ungauged Watershed in Semi-Arid Region

Simulating Soil Organic Carbon Dynamics under Climate Change Scenarios in an Arid Ecosystem

Complex Linkage between Watershed Attributes and Surface Water Quality: Gaining Insight via Path Analysis

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