Potential of solar-induced chlorophyll fluorescence (SIF) to access long-term dynamics of soil salinity using OCO-2 satellite data and machine learning method

Geoderma, Journal Year: 2024, Volume and Issue: 444, P. 116855 - 116855

Published: March 14, 2024

The accumulation of soil salt becomes a worldwide widespread phenomenon, being major threat to global production. As an environmental stress, salinity can reduce the vegetation photosynthetic activity. Solar-induced chlorophyll fluorescence (SIF) is electromagnetic signal actively released by during photosynthesis. SIF not only capture lower activity due stress promptly, but also less affected atmosphere and background. However, ability observation detect remains unclear. Here, we use standardized solar-induced iluorescence index (SIFI) from time series (2000 ∼ 2020) OCO-2 based product (GOSIF) develop model. results show that: identify (EC ≥ 2 4 dS m−1) class scale. SIFI calculated at May August (hereafter SIFI5-8) optimal sensitivity indices for rainfed cropland, herbaceous cover, irrigated shrubland, grassland. SIFI10-11 forest sparse vegetation; (2) By comparison, ovrerall classification accuracy predicted above 70 %. order cropland > bare area grassland shrubland cover (3) During least three-quarters period 2000 2020, was 4.9 Mkm2; (4) annual change rate content generally between −0.05 0.05 m−1 yr−1. Soil in South Africa West Asia increased greatly with 0.02 0.03 These demonstrate estimate salinity, providing new perspective explaining evaluating variation.

Language: Английский

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Analyzing the effectiveness of China's national protected areas at resisting cropland expansion pressure

Applied Geography, Journal Year: 2025, Volume and Issue: 177, P. 103568 - 103568

Published: Feb. 18, 2025

Language: Английский

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Three-quarters of species’ ranges have not been covered by protected areas in global borders

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: March 17, 2025

Borderlands are increasingly recognized as critically important for biodiversity conservation owing to their ecological significance and high political profile. However, the species ranges covered by protected areas influencing factors in transboundary still largely unknown worldwide. Here, based on distributional of 19,039 terrestrial vertebrates, we find that three-quarters species' global borders remain uncovered areas, particularly tropical Southeast Asia West Africa. The average area coverage is lower than non-transboundary after accounting geographical differences sampling efforts. We also observe increases with governance effectiveness, collaboration abilities, protection levels, sizes establishment years topographic complexity, but decreases human population density, development index, cropland expansion. Furthermore, simultaneously face threats ongoing challenges from climate change, land-use modification, alien invasion, proportions borderlands threatened changes higher elsewhere. All these findings demonstrate cross-border cooperation urgently needed achieve ambitious goal 2050. Transboundary critical refuges many species. this study reveals border regions facing greater change.

Language: Английский

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Biodiversity effects of food system sustainability actions from farm to fork

Proceedings of the National Academy of Sciences, Journal Year: 2022, Volume and Issue: 119(15)

Published: April 4, 2022

Diet shifts and food waste reduction have the potential to reduce land biodiversity footprint of system. In this study, we estimated amount used produce consumed in United States number species threatened with extinction as a result that use. We predicted changes threat under scenarios recommended healthy sustainable diets. Domestically produced beef dairy, which require vast areas, imported fruit, has an intense impact on per unit land, especially high footprints. Adopting Planetary Health diet or US Department Agriculture (USDA)–recommended vegetarian nationwide would consumption. However, increases consumption foods grown global hotspots both inside outside States, fruits vegetables, partially offset reduction. contrast, USDA-recommended US-style Mediterranean-style diets increase due increased dairy farmed fish. Simply halving benefit more than half much all Americans simultaneously shifting diet. Combining adoption could by roughly half. Species facing because unsustainable practices be rescued reducing agriculture's footprint; can help us get there.

Language: Английский

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Analyzing spatial patterns and driving factors of cropland change in China's National Protected Areas for sustainable management

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 912, P. 169102 - 169102

Published: Dec. 4, 2023

Language: Английский

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Assessment of continuity and efficiency of complemented cropland use in China for the past 20 years: A perspective of cropland abandonment

Journal of Cleaner Production, Journal Year: 2023, Volume and Issue: 388, P. 135987 - 135987

Published: Jan. 9, 2023

Language: Английский

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Does energy poverty increases starvation? Evidence from sub-Saharan Africa

Environmental Science and Pollution Research, Journal Year: 2023, Volume and Issue: 30(17), P. 48721 - 48738

Published: March 4, 2023

Language: Английский

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Expanding China’s protected areas network to enhance resilience of climate connectivity

Science Bulletin, Journal Year: 2024, Volume and Issue: 69(14), P. 2273 - 2280

Published: April 18, 2024

Language: Английский

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Multifunctional evaluation and multiscenario regulation of non-grain farmlands from the grain security perspective: Evidence from the Wuhan Metropolitan Area, China

Land Use Policy, Journal Year: 2024, Volume and Issue: 146, P. 107322 - 107322

Published: Aug. 30, 2024

Language: Английский

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Reconciling conservation and development in protected areas of the Global South

Basic and Applied Ecology, Journal Year: 2021, Volume and Issue: 54, P. 108 - 118

Published: April 19, 2021

Language: Английский

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