Trade-offs and synergies among ecosystem services in Inland River Basins under the influence of ecological water transfer project: A case study on the Tarim River basin

Qian, Kaixuan; Ma, Xiaofei; Yan, Wei; Li, Jiaxin; Xu, Shixian; Liu, Yuan; Luo, Chun; Yu, Wei; Yu, Xiaotong; Wang, Yahui; Zhou, Limin; Wang, Yonghui

doi:10.1016/j.scitotenv.2023.168248

Cited by 14 publications

(2 citation statements)

References 98 publications

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“…The study shows that the spatial distribution of ecological risk resulting from land use change in the TRB is closely aligned with the spatial distribution pattern of ecosystem service functions in the TRB after the implementation of ecological restoration projects, as described in other studies [51]. This suggests that human activities significantly influence land use change-induced ecological risks.…”

Section: Comparison With Previous Researchsupporting

confidence: 82%

Ecological Risk Assessment of Land Use Change in the Tarim River Basin, Xinjiang, China

Cheng,

Zhang,

Song

2024

Land

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In recent years, global climate change and human alterations to land use have led to a decrease in ecosystem services, making ecosystems more vulnerable. However, unlike the well-established risk assessment frameworks used in natural disaster research, the concept of ecological risks arising from changes in land use is still in its early stages, with its nuances and assessment methodologies yet to be clearly defined. This study proposes a new framework for assessing ecological risks resulting from changes in land use in the Tarim River Basin. The framework employs a coupled PLUS and Invest model to evaluate the ecological risks of land use change under three development scenarios projected for the Tarim River Basin in Xinjiang by 2035. The findings indicate that: (1) Between 2000 and 2020, the predominant land use types in the Tarim River Basin in Xinjiang were primarily unused land, followed by grassland and cropland. Conversely, grassland, water, and construction land were relatively less prevalent. During this period, the area of unused land and cultivated land increased, while grassland, forest land, and water exhibited a declining trend. Moving forward, under the three scenarios from 2020 to 2035, land use changes in the study area are characterized by the expansion of cropland and unused land, coupled with a significant decrease in grassland area, while other land categories demonstrate minor fluctuations. (2) From 2020 to 2035, across various scenarios, the total ecosystem service within the study area demonstrates an overall increasing trend in both the northern and southern marginal zones. Specifically, under the baseline scenario, the total amount of ecosystem services in the study area decreased by 15.247% compared to 2020. Similarly, under the economic development scenario, this decrease amounted to 13.358% compared to 2020. Conversely, under the ecological protection scenario, the decrease reached 19.852% compared to 2020. (3) The structure of ecological risk levels from 2020 to 2035, across multiple scenarios, demonstrates a consistent pattern, characterized by a predominant proportion of moderate risk. Conversely, other risk levels occupy relatively smaller proportions of the area.

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Section: Comparison With Previous Researchsupporting

confidence: 82%

Ecological Risk Assessment of Land Use Change in the Tarim River Basin, Xinjiang, China

Cheng,

Zhang,

Song

2024

Land

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“…All of the three largest endorheic rivers in northwestern China, the Tarim River (Tao et al, 2011;Qian et al, 2024), Heihe River (Akiyama et al, 2007;Cheng et al, 2014;Yu et al, 2023) and Shiyang River (Ma et al, 2005;Huo et al, 2008;Fang et al, 2022), are suffering from water deficits and riparian ecosystem crisis (Li et al, 2018;Chen et al, 2022). In this context, surface water replenishment under ecological water conveyance (EWC) leads to a reduction in water table depth (WTD), thereby facilitating the exchange between lower salinity surface water and groundwater, which effectively diminishes groundwater salinity and improves groundwater quality (Tao et al, 2008;Yuan et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Mechanism controlling groundwater chemistry in the hyper-arid basin with intermittent river flow: insights from long-term observations (2001–2023) in the lower Heihe River, Northwest China

Zhang,

Wang,

Liu

et al. 2024

Front. Environ. Sci.

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The geochemical processes of groundwater in arid regions are generally influenced by both natural hydrological processes and human activities. However, impacts of water-rock interactions on groundwater recharge via hydrological processes, controlled by both intermittent river water flow and groundwater withdrawals, is still poorly understood. In this study, 327 groundwater chemistry datasets collected from the upper, middle (including Gobi and riparian zones), and lower regions of the Ejina Delta in Northwest China from 2001 to 2023 were analyzed. Our results revealed that the total dissolved solids (TDS) concentration of groundwater in Ejina Delta ranged from approximately 881.5 ± 331.6 mg/L in the upper regions to 1,953.6 ± 1,208.5 mg/L in the lower regions, with an increasing trend observed. Ecological water conveyance (EWC), recharging aquifer through intermittent river water flow, resulted in a decrease in TDS concentrations from 2001 to 2023 mainly in the upper region. While irrigation notably affected groundwater chemistry in the lower region, resulting in a substantial increase in groundwater salinity. Groundwater chemistry in the Middle Gobi region remained relatively stable over the study period. Generally, the hydrochemical composition shifted from the Na-Mg-SO4-HCO3 and Na-Mg-Ca-SO4-HCO3 types in the upper region to Na-Mg-SO4-HCO3 and Na-Mg-SO4-Cl types in the lower region, with Na-SO4-Cl predominant in the Middle Gobi. These shifts were likely be attributed to the interplay of water-rock interactions, coupled with evaporation-crystallization processes. Inverse modeling using PHREEQC revealed that in the upper-middle region, primary water-rock interactions involved calcite dissolution and the precipitation of dolomite, gypsum, halite, and sylvite salts, as well as cation exchange reactions (2NaX+Ca2+→CaX2+2Na+). In contrast, the hydrogeological system in the middle-lower region exhibited an opposite pattern of water-rock interactions. Overall, ecological water conveyance partially facilitated water-rock interactions during lateral groundwater flow, while irrigation disrupted the natural hydrogeochemical equilibrium, involving halite dissolution and opposite cation exchange reactions compared to other regions.

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Trade‐offs and synergistic relationships on soil‐related ecosystem services in Central Asia under land use and land cover change

Li,

Ma,

Luo

2024

Land Degrad Dev

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Due to climate change and human activities, land desertification, a major environmental issue in arid regions, has exerted an impact on ecosystem services (ES). However, previous ES assessments in arid regions lacked the integrated assessment and trade‐off analysis of soil‐related ecosystem services (S‐ES). To address this, we developed a S‐ES‐Bayesian network (S‐ES‐BN) model to analyze the trade‐offs and synergies between the complex relationships between S‐ES and their multiple influences in Central Asia (CA). The results showed that (1) there is a large spatial and temporal heterogeneity in S‐ES, with the most significant changes in water yield service (WY, −30%) and soil conservation service (SC, −26%) in the past 30 years (1990–2020); (2) land use and land cover change (LUCC) area shifts can have a gaining or weakening effect on the S‐ES. Among them, water to wetland had the most obvious gain effect on SC (+5.1 t·km2·yr−1) and water to forestland had the most pronounced effect on carbon fixation service (CF, +251.22 t); and (3) based on the S‐ES‐BN, an optimal configuration of S‐ES in CA demonstrated that the intensification of a future “warming and wetting” scenario in CA might lead to significant decreases in WY (−37%) and sand fixation (−7%). In addition, the clarification of the land allocation structure (cropland, forestland, and grassland) in LUCC will enhance the spatial demand for CF.

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Trade-offs and synergies among ecosystem services in Inland River Basins under the influence of ecological water transfer project: A case study on the Tarim River basin

Cited by 14 publications

References 98 publications

Ecological Risk Assessment of Land Use Change in the Tarim River Basin, Xinjiang, China

Ecological Risk Assessment of Land Use Change in the Tarim River Basin, Xinjiang, China

Mechanism controlling groundwater chemistry in the hyper-arid basin with intermittent river flow: insights from long-term observations (2001–2023) in the lower Heihe River, Northwest China

Trade‐offs and synergistic relationships on soil‐related ecosystem services in Central Asia under land use and land cover change

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