Spatio-temporal variation of water conservation and its impact factors on the southern slope of Qilian Mountains

Regional Sustainability, Год журнала: 2023, Номер 4(1), С. 54 - 67

Опубликована: Март 1, 2023

The ecology of the Qilian Mountains has been seriously threatened by uncontrolled grazing and wasteland reclamation. This study examined ecological changes on southern slope from perspective water conservation classifying different clusters functional areas to efficiently use limited human resources tackle protection problem. In this study, we used Integrate Valuation Ecosystem Services Tradeoffs (InVEST) model estimate analyzed factors that influence function. results include: (1) 2000 2015, generally showed an increasing trend, total in 2015 increased 42.18% compared with 2000. (2) Rainfall, fractional vegetation cover (FVC), evapotranspiration have most significant area. Among them, is positively correlated rainfall FVC (P ​< ​0.05) negatively ​0.05). (3) importance level gradually increases northwest southeast, region surrounding Menyuan Hui Autonomous County southeast core (4) area was divided into five conservation, Clusters I through V accounting for 0.58%, 13.74%, 41.23%, 32.43%, 12.01% whole area, respectively.

Язык: Английский

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Spatiotemporal Heterogeneity of Water Conservation Function and Its Driving Factors in the Upper Yangtze River Basin

Remote Sensing, Год журнала: 2023, Номер 15(21), С. 5246 - 5246

Опубликована: Ноя. 5, 2023

The water conservation function (WCF), as one of the most critical ecosystem services, has an important impact on ecological sustainability a region. Accurately characterizing spatiotemporal heterogeneity WCF and further exploring its driving factors are great significance for river basin management. Here, upper Yangtze River (UYRB) from 1991 to 2020 was calculated using yield module in Integrated Valuation Ecosystem Service Tradeoffs (InVEST) model. Also, we innovatively applied emerging hot spot analysis (EHSA), which could describe location pattern historical changes more accurately, investigate evolution WCF. Based Geographical Detector Model (GDM), main their interactions were revealed. results showed following: (1) UYRB experienced temporal increase at growth rate 1.48 mm/a, while remarkable differences observed across change rates sub-watersheds. (2) spatial variation gradual northwest southeast. Interestingly, Jinshajing upstream (JSJU) source area with low increasing trend (with diminishing cold spots). On contrary, downstream regions JSJU watershed intensifying spots) underwent weakening (3) Among all factors, precipitation (q = 0.701) exhibited prominent Additionally, interaction explanatory power than each factor alone, such saturated soil hydraulic conductivity 0.840). This research study is beneficial resource management provides theoretical basis restoration.

Язык: Английский

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Evaluation of the water conservation function in the Ili River Delta of Central Asia based on the InVEST model

Journal of Arid Land, Год журнала: 2023, Номер 15(12), С. 1455 - 1473

Опубликована: Дек. 1, 2023

Abstract The Ili River Delta (IRD) is an ecological security barrier for the Lake Balkhash and important water conservation area in Central Asia. In this study, we selected IRD as a typical research area, simulated yield from 1975 to 2020 using module of Integrated Valuation Ecosystem Services Tradeoffs (InVEST) model. We further analyzed temporal spatial variations 2020, investigated main driving factors (precipitation, potential evapotranspiration, land use/land cover change, inflow River) variation based on linear regression, piecewise Pearson’s correlation coefficient analyses. results indicated that showed decreasing trend, distribution pattern was “high east low west”; overall, all use types decreased slightly. volume grassland most reduced, although increased owing River. At same time, has led expansion wetland areas, improvement vegetation growth, increase regional thus resulting overall reduction conservation. depth precipitation had similar patterns; change climate reason decline function delta. reservoir upper reaches regulated runoff into Balkhash, promoted restoration, positive effect conservation; however, cannot offset negative enhanced evapotranspiration. These provide reference rational allocation resources ecosystem protection IRD.

Язык: Английский

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Assessing the Impacts of Climate and Land Use Change on Water Conservation in the Three-River Headstreams Region of China Based on the Integration of the InVEST Model and Machine Learning

Land, Год журнала: 2024, Номер 13(3), С. 352 - 352

Опубликована: Март 8, 2024

The Three-River Headstreams Region (TRHR) serves as the cradle of China’s three major rivers—the Yangtze, Yellow, and Lancang—rendering its water conservation (WC) capacity quintessentially significant for Asian resource security. This study integrated InVEST model random forest to holistically elucidate spatiotemporal characteristics factors influencing WC in TRHR from 1980 2018. results revealed that growth rate was 5.65 mm/10a during period, yet pronounced regional disparities were observed among different basins, especially with Lancang River Basin (LRB), which exhibited a decrease at 5.08 mm per decade despite having highest WC. Through Theil–Sen trend analysis, Mann–Kendall abrupt change test, cumulative deviation method, meteorological, vegetative, land use changes approximately 2000 identified primary drivers surge within TRHR. Furthermore, precipitation aridity index core feature variables affecting However, positive transition patterns post-2000 also revealed, favorable effect on not climatic changes. offers new perspectives managing multidimensional data contributes laying groundwork machine learning applications conservation. Additionally, it potentially provides useful references decision-making processes related ecosystem

Язык: Английский

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Evolutionary mechanisms of water conservation services in the Yarlung Zangbo River

Journal of Hydrology Regional Studies, Год журнала: 2025, Номер 58, С. 102197 - 102197

Опубликована: Янв. 21, 2025

Язык: Английский

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Improving Ecological Barrier Area Sustainability Integrating Ecosystem Service Interaction and Social–Ecological System Coupling

Land Degradation and Development, Год журнала: 2025, Номер unknown

Опубликована: Фев. 6, 2025

ABSTRACT Ecological barrier areas are the natural area with special ecological functions, and play a vital role in maintaining global balance, protecting biodiversity, regulating climate. They also profoundly affect local social system inhabitants' lifestyle. Mitigating trade‐offs between distinct ecosystem services enhancing social–ecological coupling essential for sustainable development of areas. However, lack integrating them on topographical gradient features compromises our ability to design precise interventions regional sustainability. Taking Sichuan‐Yunnan Barrier as case area, this study developed management approach by service interactions under multidimensional gradients provide reference assessing improving sustainability area. The results demonstrated that during 2010–2020, topography played key shaping interactions, hilly showing highest synergistic level multiple pairs. high relief mountain had lowest index system; decreased rapidly flatter areas, while it increased low middle Based above multi‐dimensional characteristics, six zones were subdivided formulating differentiated strategies This research provides insights regarding territorial spatial strategies, delivers guidance coordinating relationships systems other similar

Язык: Английский

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Geochemical characteristics and source analysis of rare earth elements in Qinghai Lake sediments

Acta Geochimica, Год журнала: 2025, Номер unknown

Опубликована: Фев. 17, 2025

Язык: Английский

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Integrating analyzing water retention and vulnerability on the Qinghai-Tibet Plateau for regional water security and sustainable development

Journal of Hydrology Regional Studies, Год журнала: 2025, Номер 58, С. 102299 - 102299

Опубликована: Март 4, 2025

Язык: Английский

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Interactions of Ecosystem Services and Management Optimization in Complex Hilly Mountainous Environments: A Case Study from Southern China

Land, Год журнала: 2025, Номер 14(4), С. 717 - 717

Опубликована: Март 27, 2025

Hilly mountainous regions are ecologically complex, featuring diverse environmental ecosystem services (ESs) and intricate interactions. However, the variability, drivers, management of these ESs remain poorly understood, particularly in with significant topographical climatic heterogeneity. This study focuses on southern hilly mountain belt China, examining five key services: food production (FP), carbon storage (CS), water yield (WY), habitat quality (HQ), soil conservation (SC). examines across long-term, pixel, regional scales, exploring interactive relationships identifying driving factors cluster characteristics. The results indicate following: (1) Over past 23 years, although have increased, has declined. (2) From a spatial perspective, differences trade-offs synergies years relatively small. observed when considering continuous temporal change, trade-off generally prevalent. Additionally, distribution is also influenced by combination factors. (3) Climatic, vegetation, topographical, socioeconomic influencing changes ESs. For instance, climate–vegetation interactions enhance conservation. Socioeconomic factors, though less impactful, optimize through land policy. (4) We found that ecological priority region covers largest area, followed agricultural development zone, forestry integrated security zone. These findings deepen our understanding regions, providing actionable insights for enhancing sustainable complex landscapes.

Язык: Английский

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A multi-objective scheme for sustainable ecological conservation on the Qinghai–Tibet Plateau

Resources Conservation and Recycling, Год журнала: 2025, Номер 219, С. 108276 - 108276

Опубликована: Март 31, 2025

Язык: Английский

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