Evaluation and regulation strategy for ecological security in the Tarim River Basin based on the ecological footprint

Journal of Cleaner Production, Journal Year: 2024, Volume and Issue: 435, P. 140488 - 140488

Published: Jan. 1, 2024

Language: Английский

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Effects of drought and climate factors on vegetation dynamics in Central Asia from 1982 to 2020

Journal of Environmental Management, Journal Year: 2022, Volume and Issue: 328, P. 116997 - 116997

Published: Dec. 12, 2022

Language: Английский

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Ecological transitions in Xinjiang, China: Unraveling the impact of climate change on vegetation dynamics (1990–2020)

Journal of Geographical Sciences, Journal Year: 2024, Volume and Issue: 34(6), P. 1039 - 1064

Published: June 1, 2024

Language: Английский

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Human activities dominated terrestrial productivity increase over the past 22 years in typical arid and semiarid regions of Xinjiang, China

CATENA, Journal Year: 2025, Volume and Issue: 250, P. 108754 - 108754

Published: Jan. 28, 2025

Language: Английский

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Human activities rather than climate change dominate the growth of carbon fluxes in the Hexi Corridor oasis area, China

Journal of Geographical Sciences, Journal Year: 2025, Volume and Issue: 35(2), P. 252 - 272

Published: Feb. 1, 2025

Language: Английский

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Spatio-temporal dynamics of terrestrial Net ecosystem productivity in the ASEAN from 2001 to 2020 based on remote sensing and improved CASA model

Ecological Indicators, Journal Year: 2023, Volume and Issue: 154, P. 110920 - 110920

Published: Sept. 9, 2023

The Association of Southeast Asian Nations (ASEAN) has attracted considerable attention for its rich land ecosystem productivity. However, recent excessive human disturbances may have triggered significant transformations. Consequently, understanding the spatio-temporal dynamics productivity in this region is crucial strengthening regional ecological sustainability and implementing climate change mitigation strategies. In study, we harnessed multi-source remote sensing data, an improved CASA model, Theil-Sen Median estimators, Mann-Kendall tests, Hurst exponent to estimate net (NEP) ASEAN simulate spatiotemporal change. results showed that mean annual NEP from 2001 2020 was 396.83gC/m2, exhibiting a gradual downward trend. From tendency perspective, areas decline far outweighed increase, with 60.03% total area showing decrease NEP, 33.14% boost, 6.83% no terms persistence, 79.3% demonstrated anti-persistence, indicating stronger trend reversal. Coupling analysis indicated future increasing constituted 36.11% area, while accounted 0.08%, decreasing included 25.21%, 38.6% exhibited uncertain trends. Researchers should continually monitor This driven by data combined successfully estimated Net Ecosystem Productivity at both site scales. enhanced our comprehension patterns vegetation carbon balance changes ASEAN, providing support formulating “low-carbon economy” strategies promoting sustainable development ecosystems.

Language: Английский

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Spatiotemporal Variation Characteristics and Dynamic Persistence Analysis of Carbon Sources/Sinks in the Yellow River Basin

Remote Sensing, Journal Year: 2023, Volume and Issue: 15(2), P. 323 - 323

Published: Jan. 5, 2023

Net ecosystem productivity (NEP) is an important indicator for estimating regional carbon sources/sinks. The study focuses on a comprehensive computational simulation and spatiotemporal variation of the NEP in Yellow River basin from 2000 to 2020 using NPP data products MODIS combined with quantitative estimation model followed by analysis characteristics dynamic procession persistence based meteorological land use data. results show that: (1) total had overall increasing trend 2020, Theil–Sen −23.37 43.66 gCm−2a−1 mean increase 4.64 (p < 0.01, 2-tailed). (2) Most areas are sink areas, annual average per unit area was 208.56 2020. There were, however, substantial spatial temporal variations NEP. source located Kubuqi Desert its surroundings. (3) Changes patterns were main cause changes During 2000–2020 period, 1154.24 t added, mainly due use, e.g., conversion farmland forests grasslands. (4) future development 83.43% uncertain according Hurst index analysis. In conclusion, although carbon−sink capacity terrestrial potential future, new energy resources has uncertainties, stability needs be enhanced.

Language: Английский

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The Change in Net Ecosystem Productivity and its Driving Mechanism in a Mountain Ecosystem of Arid Regions, Northwest China

Remote Sensing, Journal Year: 2022, Volume and Issue: 14(16), P. 4046 - 4046

Published: Aug. 19, 2022

During the past several decades, carbon budget in dryland ecosystem has experienced great variation under joint impact of climate change and anthropogenic interference. How net productivity (NEP) responds to human interference Qilian Mountains (QLM), Northwest China, remains unclear. To fill these gaps, we first estimated NEP QLM then quantified independent interactive influences natural environment factors, climatic activity intensity on from 2000 2020 by linking Geodetector structural equation models. The showed a significant increase during recent 20 years, 78.93% NEP; while only 4.83% area decreasing trend, which is dominantly located southeast edge, surrounding Qinghai Lake, midland QLM. percentage sink region increased 47% 62% 2020. factors (e.g., altitude soil type) temperature precipitation) were dominant that determine spatial distribution NEP. Compared with single factor, interaction pairs enhanced influence strength indirectly affected through influencing activities factors. Human played medium negative effect NEP, exerted strong direct indirect positive contributions intensity, 33.5%, 62.3%, 38.3%, respectively. Overall, warming wetting shifts meteorological conditions offset QLM, acted as growing years.

Language: Английский

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Global Challenges and Responses: Agriculture, Economic Globalization, and Environmental Sustainability in Central Asia

Sustainability, Journal Year: 2022, Volume and Issue: 14(4), P. 2455 - 2455

Published: Feb. 21, 2022

Economic globalization (EG) accelerates very fast in Central Asia. This could cause environmental degradation, according to the Kuznets curve (EKC) hypothesis. The study aims determine how EG of agriculture impacts sustainability, and test EKC hypothesis on agricultural sector six Asian countries. Particularly, some main hypotheses were proposed using secondary data from Kazakhstan, Kyrgyzstan, Mongolia, Tajikistan, Turkmenistan, Uzbekistan 1994 2019. uses five explanatory variables: exports value (EXP), forestry fishing value-added (AVA), exchange rate (EXR), total natural resource rents (RENT), external debt stocks (DEBT), while dependent variable this is CO2 emissions on-farm energy use (EMS), temperature changes (TEMP), forest fires (FIRE). These are analyzed panel regression. As a result, AVA RENT raise EMS; EXC raises TEMP but lowers DEBT can lower FIRE. Hence, we propose recommendations improve condition, including clear roadmap, enhanced partnerships, regional international support.

Language: Английский

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Recent Oasis Dynamics and Ecological Security in the Tarim River Basin, Central Asia

Sustainability, Journal Year: 2022, Volume and Issue: 14(6), P. 3372 - 3372

Published: March 13, 2022

As an important agricultural and gathering area in arid inland areas of China, the ecological environments oasis are more sensitive to regional climate change human activities. This paper investigates dynamic evolution oases Tarim River basin (TRB) quantitatively evaluates security via a remote sensing index (RSEI) net primary productivity (NPP) through Carnegie–Ames–Stanford approach (CASA) from 2000 2020. The results indicate that total plain TRB during study period experienced increasing trend, with expanding by 8.21%. Specifically, artificial (cultivated industrial land) showed notable increase, whereas natural (forests grassland) exhibited apparent decrease. Among indictors change, Normalised Difference Vegetation Index (NDVI) increased 0.13 0.16, fraction vegetation cover (FVC) expanded 36.79%, NPP 31.55%. RSEI changes indicated eco-environment region went poor grade general grade; 69% region’s improved, especially western mountainous areas, less than 5% regions’ eco-ecological were degraded, mainly occurring desert-oasis ecotone. Changes land- use types activities had significant influence on expansion factors. Our have substantial implications for environment protection sustainable economic development along Silk Road Economic Belt.

Language: Английский

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