Global Dynamics of Grassland FVC and LST and Spatial Distribution of Their Correlation (2001–2022)

Plants, Journal Year: 2025, Volume and Issue: 14(3), P. 439 - 439

Published: Feb. 2, 2025

Fractional Vegetation Cover (FVC) and Land Surface Temperature (LST) are critical indicators for assessing grassland ecosystems. Based on global remote sensing data FVC LST from 2001 to 2022, this study employs the Mann–Kendall trend test Spearman correlation analysis explore dynamic changes in spatial distribution patterns of both variables. The results indicate that is increasing regions such as Europe, eastern southern Sahara, western India, South America, North central China. However, it decreasing Canada, United States, northern Australia. Significant increases observed subarctic Tibetan Plateau, attributed polar warming effects associated with climate change. Conversely, China, coastal Australia, Africa. FVC–LST relationship exhibits following four distinct patterns: (1) increase (Type 1), (2) decrease 2), (3) 3), (4) 4). Type 1, covering 33.72%, primarily found high-latitude high-altitude areas, Plateau. 2, largest group (46.98%), mainly located 3, which comprises 18.72%, concentrated arid semi-arid regions, while 4, representing only 0.59%, lacks clear patterns.

Language: Английский

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Ecosystem Services Thresholds and Interconnected Feedback Loops in the Vulnerable Tarim River Basin: Confronting Climate and Vegetation Transformations

Global Ecology and Conservation, Journal Year: 2025, Volume and Issue: unknown, P. e03529 - e03529

Published: March 1, 2025

Language: Английский

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Spatiotemporal Heterogeneity of Vegetation Cover Dynamics and Its Drivers in Coastal Regions: Evidence from a Typical Coastal Province in China

Remote Sensing, Journal Year: 2025, Volume and Issue: 17(5), P. 921 - 921

Published: March 5, 2025

Studying the spatiotemporal trends and influencing factors of vegetation coverage is essential for assessing ecological quality monitoring regional ecosystem dynamics. The existing research on variations their driving predominantly focused inland ecologically vulnerable regions, while coastal areas received relatively little attention. However, with unique geographical, ecological, anthropogenic activity characteristics, may exhibit distinct distribution patterns mechanisms. To address this gap, we selected Shandong Province (SDP), a representative province in China significant natural socioeconomic heterogeneity, as our study area. investigate coastal–inland differentiation dynamics its underlying mechanisms, SDP was stratified into four geographic sub-regions: coastal, eastern, central, western. Fractional cover (FVC) derived from MOD13A3 v061 NDVI data served key indicator, integrated multi-source datasets (2000–2023) encompassing climatic, topographic, variables. We analyzed characteristics dominant across these sub-regions. results indicated that (1) FVC displayed complex notable gradient where decreased towards coast. (2) influence various significantly varied sub-regions, dominating an east–west polarity, i.e., explanatory power intensified westward resurging zones. (3) intricate interaction multiple influenced spatial FVC, particularly dual-factor synergies interactions between other were crucial determining coverage. Notably, zone exhibited high sensitivity to drivers, highlighting exceptional ecosystems human activities. This provides insights different geographical zones well factors. These findings can help understand challenges faced protecting vegetation, facilitating deeper insight responses enabling formulation effective tailored strategies promote sustainable development areas.

Language: Английский

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Environmental impact assessment of agrophotovoltaic power plants based on cross-regional empirical evidence

Energy Ecology and Environment, Journal Year: 2025, Volume and Issue: unknown

Published: March 29, 2025

Language: Английский

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Quantifying the impacts of climate change and human activities on vegetation in ecologically fragile regions: a case study of Northern China

Theoretical and Applied Climatology, Journal Year: 2025, Volume and Issue: 156(5)

Published: April 25, 2025

Language: Английский

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Impacts of Water Diversion Projects on Vegetation Coverage in Central Yunnan Province, China (2017–2022)

Remote Sensing, Journal Year: 2024, Volume and Issue: 16(13), P. 2373 - 2373

Published: June 28, 2024

The water diversion project in Central Yunnan Province (WDP-YN) is the largest under construction China. However, ecological effects of this are still unclear. This study utilized Sentinel-2 remote sensing data to estimate fractional vegetation cover (FVC), maps spatiotemporal variations FVC areas from 2017 2022, and evaluates impact WDP-YN on regional coverage using buffer analysis type transition matrix methods. led following findings: (1) From within 10 km tunnel route showed a slightly downward trend or remained relatively stable with no significant changes spatial pattern FVC. (2) Before after WDP-YN, over 60% area change On Construction Route Section I (CRS-I), improved and/or degraded 12.90% (14.10%) regions concentrated northern CRS-I. For II (CRS-II), 11.96% 27.51% were dominated by Vegetation near Groundwater Monitoring Point (GMPa) stable. (3) 2 both sides CRS-I, slowing down increase FVC, while 2–6 CRS-II, closer distance faster decrease slowed 0–2 CRS-II. sheds light impacts infrastructure provides practical guidance reference for eco-environment protection restoration given conservancy projects China other world.

Language: Английский

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A new method to quantify the impacts of human activity on soil conservation service

Journal of Environmental Management, Journal Year: 2024, Volume and Issue: 368, P. 122257 - 122257

Published: Aug. 22, 2024

Language: Английский

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Cumulative and Lagged Effects: Seasonal Characteristics of Drought Effects on East Asian Grasslands

Remote Sensing, Journal Year: 2024, Volume and Issue: 16(18), P. 3478 - 3478

Published: Sept. 19, 2024

With the acceleration of global warming, droughts are expected to both intensify and become more frequent. More so than forests, productivity grasslands is largely controlled by soil moisture highly susceptible drought. Drought can impact though effects may lag accumulate over time. Because prior research has mainly focused on annual or growing season scale, it remains unclear whether there seasonal differences in cumulative lagged (CALEs) This study uses Normalized Difference Vegetation Index (NDVI) Standardized Precipitation Evapotranspiration (SPEI) data explore characteristics CALEs drought grassland growth East Asia from 2001 2020. The main results include following: (1) 40% significantly affected for all three seasons (spring, summer, autumn). (2) Grasslands sensitive summer. spatial variability time scale greatest spring, whereas gradually shortens as decreases summer autumn but shows an inverted U-shape spring. As conditions intensify, increases spring autumn, while decreasing (3) dominant vary among different seasons: effect (LE) predominates (CE) that dominates. LE exceeds CE 54.89% area during season. We emphasize annual- season-scale studies obscure response characteristics. Given nature seasonally varying sensitivities these droughts, impacts vegetation fluctuate across seasons. help us accurately predict ecosystem changes under background warming increasing probability severe drought, providing important reference values future ecological protection planning.

Language: Английский

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Effects of Soil Nutrient Restoration Aging and Vegetation Recovery in Open Dumps of Cold and Arid Regions in Xinjiang, China

Land, Journal Year: 2024, Volume and Issue: 13(10), P. 1690 - 1690

Published: Oct. 16, 2024

Open-pit coal mining inevitably damages the soil and vegetation in areas. Currently, restoration of cold arid open-pit mines Xinjiang, China, is still initial exploratory stage, especially changes nutrients spoil dumps over time. Dynamic remote sensing monitoring areas their correlation are relatively rare. Using Heishan Open Pit as a case, samples were collected during different discharge periods to analyze uncover mechanisms. Based on four Landsat images from 2018 2023, ecological index (RSEI) fractional cover (FVC) obtained evaluate effect mine restoration. Additionally, between was analyzed. The results indicated that (i) contents nitrogen (N), phosphorus (P), potassium (K), organic matter (OM) increased with duration period. (ii) When time dump exceeds 5 years, N, P, K, OM content higher than original surface-covered area. (iii) Notably, under same aging, artificial demonstration base had significantly these compared naturally restored dump. (iv) Over past five RSEI FVC showed an overall upward trend. slope remediation project values (v) Air humidity surface temperature identified key natural factors affecting open pit. coefficients nutrient coverage 0.78, indicating close complementary relationship two. above can clarify time–effect recovery further promoting research practice technology pits.

Language: Английский

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Plant-root-litter-soil C, N, P stoichiometry and plant phosphorus accumulation and utilization response to warming and phosphorus input in desert steppe

Global Ecology and Conservation, Journal Year: 2024, Volume and Issue: unknown, P. e03266 - e03266

Published: Oct. 1, 2024

Language: Английский

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