Climate change and geo-environmental factors influencing desertification: a critical review

Environmental Science and Pollution Research, Год журнала: 2024, Номер unknown

Опубликована: Фев. 19, 2024

Язык: Английский

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Improving grassland ecosystem services for human wellbeing in the karst desertification control area: Anthropogenic factors become more important

The Science of The Total Environment, Год журнала: 2024, Номер 946, С. 174199 - 174199

Опубликована: Июнь 24, 2024

Язык: Английский

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Mediation effects of vegetation, land use and cover change and karst characteristics on hydrologic processes in heterogeneous karst basins

Hydrological Processes, Год журнала: 2024, Номер 38(2)

Опубликована: Фев. 1, 2024

Abstract A thorough understanding of the complex response hydrologic processes to latent factors is great significance for regional soil erosion and water resources management. However, what kind mediation effect exists between not yet clear, especially in heterogeneous karst regions. In this study, elasticity coefficient method partial least squares structural equation modelling (PLS‐SEM) were used investigate mechanism on basins explore processes. The results show that runoff Yeji River Basin decreased during 1997–2004, but increased or stabilized since 2005. On monthly scale, July December showed an ‘inverted V‐shaped’ change. Both PLS‐SEM climate change contributed most (direct accounted 37.94% ~ 61.41%). PLS‐SEM, total sizes as follows: (0.751 0.963) > vegetation (0.296 0.740) characteristics (KCF) (−0.454 −0.563) human activities (−0.036 −0.528) land use cover (LUCC) −0.205). typical basin, two pathways have been determined: activities‐vegetation/LUCC‐runoff, where LUCC had a relationships runoff; change‐KCF‐runoff, KCF runoff. Moreover, preferred decouple responses than method. This study conducted further research exploration basins, provided valuable theoretical references grassroots managers cope with management under context future

Язык: Английский

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Characteristics of spatial and temporal changes in ecosystem service value and threshold effect in Henan along the Yellow River, China

Ecological Indicators, Год журнала: 2024, Номер 166, С. 112531 - 112531

Опубликована: Авг. 27, 2024

• To take into account the negative influence of construction land on ESV. Combine with partial dependency analysis to effectively identify degree and trend each factor Quantitatively define sensitive areas ecosystem service value. Accurately vulnerable key nodes in ecosystem. Ecosystem services (ES), which serve as link between human activities natural ecosystems, are crucial for maintaining ecological balance supporting economic development. The Services Value (ESV) is an indicator used quantifying services. estimating dynamics ESV threshold effects influencing factors great importance sustainable development region. This study constructs valuation model based equivalent method, incorporating land, corrects initial results three dimensions. By constructing a random forest integrating dependence analysis, Elevation, Evapotranspiration, Normalized Difference Vegetation Index, proportion built-up area were identified significant determining ecologically within show that: (1) total Henan along Yellow River 2000, 2005, 2010, 2015, 2020 was 204.612 billion yuan, 249.775 239.100 234.868 yuan 202.767 respectively. overall change first growth then decline, spatial features remaining relatively stable, polarization becoming more pronounced. (2) clustering characteristics remarkable, cold hot spot bidirectional expansion trend. expand substantially around whilethe small western mountain vegetation River, but slower. (3) main affecting include one anthropogenic factor, namely evapotranspiration (ET), (POB), normalized index (NDVI) elevation (ELEV). at high level when ELEV>718 m, ET<90 mm, NDVI>0.7, POB<25.67 % approximately. can provide important theoretical basis comprehensive protection measures. Furthermore, they contribute Basin.

Язык: Английский

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Spatiotemporal characteristics and socio-ecological drivers of ecosystem service interactions in the Dongting Lake Ecological Economic Zone

Ecological Indicators, Год журнала: 2024, Номер 167, С. 112734 - 112734

Опубликована: Окт. 1, 2024

Язык: Английский

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Spatially non-stationary relationships between landscape fragmentation and soil conservation services in China, 2000–2018

Ecological Indicators, Год журнала: 2024, Номер 160, С. 111913 - 111913

Опубликована: Март 1, 2024

Soil conservation (SC), which supports ecosystems by retaining vegetation, controlling erosion, sediment, cycling nutrients, water, maintaining diversity, and forming soil, is threatened human-induced soil erosion landscape fragmentation. Therefore, revealing the spatial relationship between fragmentation (LF) SC can provide a scientific basis for ecosystem policy-making planning in China. However, previous studies failed to reveal spatially non-stationary response of LF, especially at national scale. To compensate research gaps, this study first measured county scale with benefit transfer method, then LF was characterized pattern indices, finally relationships from global local perspectives through regression models were analyzed. Results showed that values services per unit area 2000, 2010, 2018 $134.73/ha, $132.30/ha, $130.71/ha, respectively, showing continuous decreasing trend. The high-value areas distributed south Qinling-Huaihe River, Greater Khingan Mountains, Changbai Mountain areas. In contrast, low-value mainly northwest low northwestern region, while Shanxi, Shaanxi, Hebei, southern Gansu presented highly fragmented landscapes. results higher regional value SC. Meanwhile, there significant heterogeneity closely related population distribution resource endowment. future, planning, land use structure layout take impact mechanism on as essential basis.

Язык: Английский

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Multi-Scale Analysis of Ecosystem Service Trade-Offs/Synergies in the Yangtze River Delta

Land, Год журнала: 2024, Номер 13(9), С. 1462 - 1462

Опубликована: Сен. 9, 2024

The transformation of ecosystem structure leads to changes in services (ESs) and their relationship. However, most research this area has focused on particular scales timeframes, often overlooking the significance spatial temporal variations. Therefore, we used equivalent value method evaluate seven typical ESs Yangtze River Delta (YRD) between 2000 2020: food production (FP), water supply (WS), climate regulation (CR), environmental purification (EP), soil conservation (SC), biodiversity maintenance (BM), aesthetic landscape (AL). We further employed Spearman correlation coefficient bivariate Moran’s I relationship heterogeneity at grid, township, county city scales. Our results show that (1) All except AL exhibited a fluctuating upward trend from 2020, resulting total increase service (ES) RMB 650.63 billion. (2) Approximately 70% ES pairs demonstrated synergistic relationship, with exception FP other ESs, which mainly showed trade-off. (3) With scale increased grid level, degree trade-off strengthened different levels, while synergy among gradually decreased. (4) strong heterogeneity, exhibiting trade-offs primarily northern southern YRD, mostly these regions. This study provides scientific information for governments optimize land use distribution improve ESs.

Язык: Английский

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Ecosystem Service Trade-Offs and Synergies in a Temperate Agricultural Region in Northeast China

Remote Sensing, Год журнала: 2025, Номер 17(5), С. 852 - 852

Опубликована: Фев. 28, 2025

Ecosystem services (ESs) are essential for balancing environmental sustainability and socio-economic development. However, the of ESs their relationships increasingly threatened by global climate change intensifying human activities, particularly in ecologically sensitive agriculturally-intensive regions. The Songnen Plain, a crucial agricultural region Northeast China, faces considerable challenges sustaining its due to overexploitation land, degradation, variability. This study assessed five key Plain from 2000 2020 across multiple scales: habitat quality (HQ), soil conservation (SC), water yield (WY), food production (FP), windbreaking sand fixing (WS). We evaluated trade-offs synergies between these ESs, as well driving factors main ES trade-offs. Our findings indicate that provisioning (WY FP) regulating (SC WS) improved over time, with FP exhibiting most significant increase at 203.90%, while supporting (HQ) declined 32.61%. primary ecosystem service multifunctionality areas were those provided FP, SC, WY, accounting 58% total. varied spatial scales, stronger being observed pixel scale more pronounced county scale. Climate factors, precipitation temperature, played role shaping than anthropogenic factors. provides valuable insights into restoration sustainable management temperate regions, implications protection northeastern black safeguarding national security.

Язык: Английский

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Comparative Analysis of Dynamic Changes and Scenario Predictions of Carbon Storage in a Small Watershed Driven by Social‐Natural Factors in Cold Regions

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

Опубликована: Март 11, 2025

ABSTRACT Carbon storage (CS) influences the balance and stability of carbon cycle in global terrestrial ecosystems. Research on changes CS scenario forecasting is essential for developing sustainable socioeconomic policies. To more accurately predict small watersheds cold regions, this study takes Ashi River watershed (ARW) as a case to explore “past–present–future” CS. We quantify dominant factors affecting further focus prediction under four SSP–RCP scenarios considering from new perspective by coupling Integrated Valuation Ecosystem Services Tradeoffs (InVEST) Patch‐generating Land Use Simulation (PLUS) models, which important implementing dual policy regions. The findings revealed pattern growth followed reduction between 1990 2020, resulting an overall increase 2.68% 3947.40 × 10 4 Mg 2020. Both natural drove CS, with having direct positive impact negative impact. Climate land use types were significantly correlated simulations showed significant across all scenarios, largest 52.39% occurring ecological protection 18.36% black soil cropland conservation scenario. A management strategy was developed based cover change (LUCC) ARW's developmental trajectory establish economic–ecological balanced development model. results can provide valuable reference decision‐makers formulating strategies units

Язык: Английский

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Response of ESV Topographic Gradient to LULC in Mountain‐River‐Sea Transitional Space Based on Markov‐PLUS Modeling: A Case Study of the Southwest Guangxi Karst‐Beibu Gulf, China

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

Опубликована: Март 4, 2025

ABSTRACT The Guangxi Southwest Karst‐Beibu Gulf (GSK‐BG) is a complex mountain‐river‐sea transitional space made up of special combination karst mountains, river basins and coastal zones, presenting slope zone tilted from northwest to southeast. At present, there still gap in identifying the characteristics topographic gradient response past‐present‐future ecosystem service value (ESV) changes land use cover (LULC) rivers seas. To that end, this study employed Markov‐PLUS model, transfer matrix mapping portray LULC ESV 2000 2030, as well analyze change towards response. Then role transformation on under different terrain factors was further explored fill current research gap. results show: (1) highest 479,332 million yuan 2010 lowest 473,424 urban development scenario (UDS). distribution shown “high low central southeastern part country”, which shows trend increasing then decreasing time. (2) Forest (FL) main contributor total ESV. improvement area mainly due other uses FL water body (WB), decrease conversion WB uses. (3) more pronounced for 2030 natural (NDS), ecological protection (EPS), UDS. types transfers predominate steep slopes at lower elevations areas with higher include grassland (GL) unutilized land, index (TDI) 5.27 4.02, bare (BL) GL, TDI 4.75 3.53. Therefore, region should be taken into account utilization resources geospatial space.

Язык: Английский

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