Impacts of climate change on water provisional services in Tungabhadra basin using<scp>InVEST</scp>Model

Bejagam, Vijaykumar; Reddy, K. Venkata; Sridhar, Venkataramana

doi:10.1002/rra.3891

Cited by 17 publications

(11 citation statements)

References 59 publications

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“…Model validation refers to comparing the results of model runs with measured data to determine the most suitable assessment model for the study area by adjusting the seasonality factor [24]. The Zhang coefficient is a seasonal parameter that reflects the seasonal distribution characteristics of precipitation and hydrogeological features, and its range is generally 0-30.…”

Section: Validation and Processing Of Model Parametermentioning

confidence: 99%

“…Liu et al [23] utilized the InVEST annual water yield model to estimate the water supply of the Beijing Zhangcheng district ecosystem and quantitatively analyzed the characteristics of the spatiotemporal distribution of WSSs in the watershed and the influence of different topographic factors, which is conducive to formulating water conservation region protection and establishing ecological compensation mechanisms. Bejagam et al [24] used the InVEST annual water yield model to analyze the impacts of climate change on water supply and water-associated services such as hydropower generation in the densely populated Tungabhadra Basin. Their research has found that water provision services in the Tungabhadra basin are vulnerable to climate change.…”

Section: Introductionmentioning

confidence: 99%

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Spatiotemporal Variation and Driving Factors of Water Supply Services in the Three Gorges Reservoir Area of China Based on Supply-Demand Balance

Zhao

Wen

2022

Water

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Water supply services (WSSs) are critical to human survival and development. The Integrated Valuation of Ecosystem Services and Trade-offs (InVEST) model enables an integrated, dynamic, and visual assessment of ecosystem services at different scales. In addition, Geodetector is an effective tool for identifying the main driving factors of spatial heterogeneity of ecosystem services. Therefore, this article takes the Three Gorges Reservoir Area (TGRA), the most prominent strategic reserve of freshwater resources in China, as the study area and uses the InVEST model to simulate the spatiotemporal heterogeneity of the supply-demand balance of WSSs and freshwater security patterns in 2005, 2010, 2015, and 2018, and explores the key driving factors of freshwater security index (FSI) with Geodetector. The total supply of WSSs in the TGRA decreased by 1.05% overall between 2005 and 2018, with the head and tail areas being low-value regions for water yield and the central part of the belly areas being high-value regions for water yield. The total demand for WSSs in the TGRA increased by 9.1%, with the tail zones and the central part of the belly zones being the high water consumption areas. In contrast, the head zones are of low water consumption. The multi-year average FSI of the TGRA is 0.12, 0.1, 0.21, and 0.16, showing an upward trend. The key ecological function areas in the TGRA are high-value FSI regions, while the tail zones in the key development areas are low-value FSI regions. Industrial water consumption significantly impacts FSI, with a multi-year average q value of 0.82. Meanwhile, the q value of industrial and domestic water consumption on FSI in 2018 increased by 43.54% and 30%, respectively, compared with 2005. This study analyzes the spatiotemporal variation of WSSs and detects the drivers in the natural-economic-social perspective and innovation in ecosystem services research. The study results can guide water resource security management in other large reservoirs or specific reservoir areas.

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Section: Validation and Processing Of Model Parametermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Spatiotemporal Variation and Driving Factors of Water Supply Services in the Three Gorges Reservoir Area of China Based on Supply-Demand Balance

Zhao

Wen

2022

Water

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“…The authors discussed the spatial heterogeneity, tradeoffs, synergies, and driving forces for this region. Bejagam et al, (2022) Landscape patterns and ecosystem services are the foundation for research focusing on landscape sustainability (Peng et al, 2021). However, the current evaluation system emphasizes the tradeoffs and synergies among ecosystem services (Maes et al, 2019;Zhou et al, 2019), largely neglecting the security of landscape patterns and the comprehensive relationships among ecosystem services.…”

Section: Introductionmentioning

confidence: 99%

Association between ecological risks and ecosystem services in an urban agglomeration in arid China

Huang

Song

Cao

et al. 2023

Front. Environ. Sci.

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Rapid urbanization leads to changes in ecosystem services and may exacerbate ecological risks. Clarifying the relationship between these two factors in a specific context is essential to explore the integrated management model and achieve sustainable regional development. However, previous studies mainly lack an integrated analysis, fail to clearly explain the mechanism of ecosystem change, and can neither support landscape ecological security construction nor spatial planning and management. This study, using the urban agglomeration on the northern slope of the Tianshan Mountains (UANSTM) as an example, applied multi-source data from 2010 to 2020, investigated the changes and relationships between ecological risks and ecosystem services, and proposes an assessment framework. The total ecosystem services (TES) of the studied agglomeration showed a decreasing trend, with an overall loss of 0.43%. Corresponding to the decrease of ecosystem services, the ecological risk was higher in the south and north of the UANSTM and lower in the northwestern, central, and eastern regions. The proportion of ecological high-risk areas was expanding. The key to the relationship between ecological risks and ecosystem services is the change in hydrological conditions. Therefore, we suggest that the UANSTM actively transforms the development and use mode of water resources and coordinates their allocation, aiming to reduce regional ecological risks and optimize the pattern of ecosystem services.

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“…INVEST (integrated valuation of ecosystem services and tradeoffs) is a modeling system that was developed by the US Natural Capital Project Team to assess the functional quantity of ecosystem services and their economic value and to support ecosystem management and decision-making, with the ability to simulate changes in the number of ecosystem services under different land cover scenarios and with an intuitive representation of the results of assessments [19]. Many scholars have conducted ESV assessments for important river basins [20,21], forests [22], mangroves [23], coastal areas [24], and agricultural land [25] using the INVEST model method. The method used to evaluate the value equivalent factor per unit area is a dynamic valuation method for ES in China, proposed by Xiegao Di [26], which has been widely used in studies of ecosystem service valuation in spatially heterogeneous ecosystems [27,28].…”

Section: Introductionmentioning

confidence: 99%

Study of the Ecosystem Service Value Gradient at the Land–Water Interface Zone of the Xijiang River Mainstem

Huang,

Deng,

Xiao

et al. 2023

Applied Sciences

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The ecosystem service value (ESV) gradient-evolution pattern of a river basin’s land and water-intertwined zones has a variety of ecosystem service values, such as biodiversity conservation, water conservation, water purification, etc. The study of the ecosystem service value (ESV) gradient-evolution pattern of a river basin’s land and water-intertwined zones will provide a scientific basis for the construction and protection of the ecological security pattern of the river basins. In this study, we combined the unit area equivalent factor method and geographically weighted regression (GWR) model to classify and analyze the gradient change pattern of ESV upstream, downstream, and along the river of the Guangdong mainstream section of the Xijiang River in China, and the conclusions are as follows: (1) The corresponding ESV share of each land use type was in the following order: water bodies > broad-leaved forest > artificial wetland > scrub > paddy field > coniferous forest > natural wetland > grassland. The level of each type of ESV does not depend entirely on the size of the area but is determined by the ecosystem service functions it can provide and the level of ESV per unit area; (2) the relationship between land use types along both sides of the river in the Guangdong section of the Xijiang River Basin shows a tendency to shift from water ecosystems to terrestrial ecosystems, and the ESV gradually decreases with the increase in distance from the water. (3) The upstream to the downstream area showed a trend of changing from terrestrial ecosystems to aquatic ecosystems, such as broad-leaved forests, scrublands, water bodies, artificial wetlands, etc., and the mean land ESV showed a general trend of undulating change and decline with the reduction in the distance from the downstream area. (4) Natural factors, such as the topography and geomorphology of the basin and the socio-economic factors of power consumption, influence the spatial distribution characteristics of the ESV in the region; among them, socio-economic factors, such as total power consumption, industrial exhaust gas emissions, industrial wastewater emissions, etc., in the economically developed areas of the Xijiang River Basin are the determinants of the changes in ESV, which are generated by human living and production activities, and these indirectly affect the magnitude of the ESV by influencing the factors of temperature and gas.

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Impacts of climate change on water provisional services in Tungabhadra basin usingInVESTModel

Cited by 17 publications

References 59 publications

Spatiotemporal Variation and Driving Factors of Water Supply Services in the Three Gorges Reservoir Area of China Based on Supply-Demand Balance

Spatiotemporal Variation and Driving Factors of Water Supply Services in the Three Gorges Reservoir Area of China Based on Supply-Demand Balance

Association between ecological risks and ecosystem services in an urban agglomeration in arid China

Study of the Ecosystem Service Value Gradient at the Land–Water Interface Zone of the Xijiang River Mainstem

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