Adaptive Capacity to Climate Change in Pastoral Areas

Sustainability, Journal Year: 2025, Volume and Issue: 17(3), P. 1337 - 1337

Published: Feb. 6, 2025

The warming climate and increasing extreme weather events are transforming ecological backgrounds, which is bringing new challenges to herders’ livelihood in grassland areas. To understand the practical risks current resilience situations of behaviors government correspondence measures, we built a conceptual framework community pastoral areas, selected different kinds steppes along gradient (desert steppe, typical steppe meadow steppe) took household surveys recognize difference enhancing strategies types. results show that: (1) Herders desert with lowest precipitation worst condition, turn out have more experience perceiving droughts mitigating loss from disaster, but received most attention assistance (28.0%) getting through drought; (2) Typical traditionally better pastural husbandry environment, suffered broadly (85.7%) livestock (26.7%) snow storms; (3) Meadow has highest catastrophic storm ratio (65.0%) affected (95.0%), least (22.22%). revealed that originally high vulnerability gradually encouraged herder’s adaptive capability. However, inclined local original vulnerability. In addition, knowledge systems indigenous herders under good condition. There clear need combine efforts pastoralists, policymakers scientific together construct resilient socio-ecological global change. This research provides an in-depth understanding areas while facing slow-onset change impacts. Practical recommendations on risk management adaptation discussed.

Language: Английский

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Quantifying the drought sensitivity of vegetation types in northern China from 1982 to 2022

Agricultural and Forest Meteorology, Journal Year: 2024, Volume and Issue: 359, P. 110293 - 110293

Published: Nov. 1, 2024

Language: Английский

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Assessing the responsiveness of multiple microwave remote sensing vegetation optical depth indices to drought on crops in Midwest US

International Journal of Applied Earth Observation and Geoinformation, Journal Year: 2024, Volume and Issue: 132, P. 104072 - 104072

Published: Aug. 1, 2024

Agricultural drought is a major natural disaster affecting biomass accumulation and causing food loss, exacerbated by the increasing frequency of flash droughts compounded drought-heatwave events. Traditional optical remote sensing indices cannot directly represent water content vegetation, resulting in limited understanding crop response to drought. To address this gap, we investigated responsiveness microwave Vegetation Optical Depth (VOD) with four bands (L-, C-, X-, KU-) emerging VOD-derived products conditions crops Midwest US. These include normalized Difference Between Night Day VOD (nVOD), Slope Regression (σ), Standardized Index (SVODI), estimate Gross Primary Productivity (VOD2GPP). They employ different theoretical modeling approaches growth use strategies. We comprehensively analyzed trend, seasonality, residual VODs, using Leaf Area (LAI) for comparison, further assessed lagged cumulative effects, quantified sensitivity, captured thresholds. The results showed time lag series as indicated Precipitation Evapotranspiration (SPEI). VODs achieved faster responses higher correlations compared LAI. Among them, VOD_L exhibited most statistically significant pixels (39.84%) positive Rmax-lag 96.81% all pixels. For VOD_L, VOD_C, VOD_X, VOD_KU, SVODI were highly correlated early stages droughts. also found that Iowa medium high sensitivity (average values 0.55 0.74), highest calculated isohydricity indicator, σ. Based on threshold σ timely first month −0.62), whereas VOD_C performed best second (both averaging −1.85), VOD2GPP (−2.94) was responsive third month. Due strategy, maize responded more quickly onset soybeans. Overall, demonstrated promising phenology research. This study provides comprehensive investigation diverse capabilities multiple VOD-based monitoring across various timescales croplands.

Language: Английский

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Assessing consistency in drought risks in India with multiple multivariate meteorological drought indices (MMDI) under climate change

The Science of The Total Environment, Journal Year: 2025, Volume and Issue: 964, P. 178617 - 178617

Published: Jan. 25, 2025

Language: Английский

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Ecological drought sensitivity assessment of winter wheat in the Huang-Huai-Hai plain, China

Environmental Monitoring and Assessment, Journal Year: 2025, Volume and Issue: 197(3)

Published: Feb. 12, 2025

Language: Английский

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Higher Fractional Vegetation Cover is More Susceptible To Drought in Mu Us Desert, P.R. China

Published: Jan. 1, 2025

Language: Английский

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The Spatial Distribution and Transition of Meteorological and Ecological Droughts in the Shendong Mining Area

Remote Sensing, Journal Year: 2025, Volume and Issue: 17(6), P. 1064 - 1064

Published: March 18, 2025

Arid and semi-arid regions are highly sensitive vulnerable to climate change human activities. Clarifying their spatial distribution is of great significance for understanding regional drought dynamics. This research examines the Shendong mining region, employing time series data vegetation growth anomalies derived from total primary productivity delineate ecological drought. The SPI dataset, representing meteorological drought, utilized identify frequency, duration, intensity both types droughts based on run theory. characteristics different land use patterns analyzed, center gravity in study area calculated. results show following: (1) 0.74 times per year, 9.2 months, 0.91, respectively. 0.33 18.2 0.09, (2) generally consistent across types. frequency minimal croplands high-coverage grasslands. duration shortest High- medium-to-high-coverage grasslands cultivated lands have lower frequencies. Low- medium-to-low-coverage relatively shorter durations. (3) In where alterations evident, areas cropland has been converted grassland low. similar. (4) average incidence transitioning into roughly 55%, with stable demonstrating a more robust correlation between croplands. areas, higher (5) transition exceeds 60% areas. Compared other near Jitu well Daliuta notably higher. findings reveal attributes dynamics coal providing reference implementation restoration projects protection measures area.

Language: Английский

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Vegetation dynamics and driving mechanisms in the Northwest Desert zone based on long-term kNDVI data

Deleted Journal, Journal Year: 2025, Volume and Issue: unknown

Published: March 1, 2025

Language: Английский

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Spatio-Temporal Variation Characteristics of Grassland Water Use Efficiency and Its Response to Drought in China

Water, Journal Year: 2025, Volume and Issue: 17(8), P. 1134 - 1134

Published: April 10, 2025

Understanding the impact of drought on water use efficiency (WUE) grasslands is essential for comprehending mechanisms carbon–water cycle in context global warming. Nevertheless, cumulative and lagged effects WUE across different grassland types China remain unclear. This study investigates from 1982 to 2018. We employed Sen-MK trend test correlation analysis identify primary factors influencing temporal WUE. The results indicated that Chinese grasslands, various types, exhibited an upward over time, with most rapid increase observed meadow. Drought had both WUE, lasting average 5.2 months 6.1 months. Specifically, lasted 5.6 alpine subalpine meadow, slope, desert grassland, whereas 9 plain grassland. Furthermore, influence varied intensified increasing altitude. trends impacts aridity index (AI) zones were consistent those as a whole. Our findings underscore response their distinct primarily characterized by effects. research provides important reference value enhancing stability ecosystems.

Language: Английский

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Analysis of Trade-Offs and Synergies Between Urban Development and Ecosystem Services in the Northwestern Region Under SSP-RCP Scenarios

Springer proceedings in physics, Journal Year: 2025, Volume and Issue: unknown, P. 77 - 94

Published: Jan. 1, 2025

Language: Английский

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