Spatio-temporal analysis of LAI using multisource remote sensing data for source region of Yellow River Basin DOI Creative Commons
Ying Zhang, Jinliang Hou, Weixiao Han

et al.

Frontiers in Environmental Science, Journal Year: 2024, Volume and Issue: 12

Published: Feb. 27, 2024

Introduction: The Leaf area index (LAI) of source region yellow river basin is an important indicator for environmental sustainability. Most studies focus on the trend LAI in Yellow River Source Region (YRSR) accordance with both climate change and human actives. However, quantifying effect activities difficult but urgently needed. Specifically, Particle Matter 2.5 (PM2.5) can be indirect activities. Methods: In this study, we explored potential dependence temperature, precipitation, PM2.5 different land cover types YRSR linear regression correlation analysis. Results: Over period 2001–2020, has been warming becoming more humid, leading to overall improvements vegetation. mean values varied between seasons, summer having highest winter lowest LAI. analysis trends revealed that steadily increasing, particularly eastern region. showed a significant positive annual average precipitation indicating temperature greater impact vegetation growth. most exhibited unimodal throughout year, except construction which had two distinct peaks. Human-induced small increase Furthermore, interannual variation downward trend, strong Additionally, multiple residual factors strongest Conclusion: study highlights spatiotemporal variations its climatic factors. findings suggest plays crucial role growth

Language: Английский

Effects of climate change and human activities on vegetation coverage change in northern China considering extreme climate and time-lag and -accumulation effects DOI
Mengyang Ma, Qingming Wang, Rong Liu

et al.

The Science of The Total Environment, Journal Year: 2022, Volume and Issue: 860, P. 160527 - 160527

Published: Nov. 30, 2022

Language: Английский

Citations

114
Spatiotemporal evolution of agricultural drought and its attribution under different climate zones and vegetation types in the Yellow River Basin of China DOI
Yu‐Jie Ding, Lifeng Zhang, Yi He

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 914, P. 169687 - 169687

Published: Jan. 9, 2024

Language: Английский

Citations

29
Spatiotemporal variations in eco-environmental quality and responses to drought and human activities in the middle reaches of the Yellow River basin, China from 1990 to 2022 DOI Creative Commons
Gexia Qin, Ninglian Wang, Yuwei Wu

et al.

Ecological Informatics, Journal Year: 2024, Volume and Issue: 81, P. 102641 - 102641

Published: May 8, 2024

The middle reaches of the Yellow River basin (MYRB) are among regions most severely affected by soil erosion globally. It has always held a pivotal role in and water conservation ecological restoration efforts China. Nonetheless, face recurrent drought occurrences growing human intervention, there have been notable alterations eco-environmental quality (EEQ) within MYRB. However, influences intervention on EEQ MYRB remain unclear. In this study, remote sensing index (RSEI) was applied to quantify spatiotemporal changes contributions land use type transitions from 1990 2022. results showed that fluctuated significantly exhibited weak overall improvement trend over past 33 years. proportion good excellent grades for improved, while poor fair decreased, especially northern regions. follows phased pattern. During periods 1990–2002 2011–2022, an improving is observed, period 2003–2010 shows no significant change EEQ. Drought had strongest influence 2003 2010, followed 2002, lesser impact 2011 primarily positively influenced spring, autumn winter droughts negatively summer droughts, arid grassland unused areas. improved during initial final phases projects, with drought. increase project implementation less noticeable, period.

Language: Английский

Citations

23
Assessing the responses of ecosystem patterns, structures and functions to drought under climate change in the Yellow River Basin, China DOI
Lu Zhang,

Caiyun Deng,

Ran Kang

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 929, P. 172603 - 172603

Published: April 21, 2024

Language: Английский

Citations

18
Drought-related cumulative and time-lag effects on vegetation dynamics across the Yellow River Basin, China DOI Creative Commons

Cun Zhan,

Chuan Liang,

Lu Zhao

et al.

Ecological Indicators, Journal Year: 2022, Volume and Issue: 143, P. 109409 - 109409

Published: Sept. 7, 2022

Yellow River Basin (YRB), a climate-sensitive and ecologically compromised area in China, is increasingly affected by extreme climate events (especially droughts) resulting from change frequent human activity. Vegetation responds asymmetrically to drought with cumulative time-lag effects, whereas response across various climatic zones diverse vegetation types the YRB remains unclear. To address this deficiency, we examined spatiotemporal patterns of accumulated lagged effects on dynamics for period 1982 2015. The examination was based long-term Normalized Difference Index (NDVI) multiscale dataset Standardized Precipitation Evapotranspiration (SPEI). Cumulative (time-lag) were determined via maximum correlation between NDVI one- 12-month timescale SPEI (one-month SPEI), as well corresponding months optimal drought. main findings follows: (1) Accumulated significantly approximately 50% 60% vegetated YRB, respectively, strongest varying types. (2) In general, arid zone tended be more sensitive resistant drought, evidenced occurrence mostly short-term (one–three months) medium-term (six–eight months), respectively. This finding may related vegetation's strategy coping water deficits. (3) biome-level grassland cultivated stronger than those forests, which associated differences functional characteristics root systems. (4) Annual availability responded droughts multiple timescales, coefficients decreasing increasing average annual SPEI. These results indicate that areas low susceptible droughts. (5) Independent or type, cumulatively effects. study improves knowledge climate–vegetation relationships provides theoretical support addressing risk changing climate.

Language: Английский

Citations

56
Detection and Attribution of Vegetation Dynamics in the Yellow River Basin Based on Long-Term Kernel NDVI Data DOI Creative Commons
Haiying Yu,

Qianhua Yang,

Shouzheng Jiang

et al.

Remote Sensing, Journal Year: 2024, Volume and Issue: 16(7), P. 1280 - 1280

Published: April 5, 2024

Detecting and attributing vegetation variations in the Yellow River Basin (YRB) is vital for adjusting ecological restoration strategies to address possible threats posed by changing environments. On basis of kernel normalized difference index (kNDVI) key climate drivers (precipitation (PRE), temperature (TEM), solar radiation (SR), potential evapotranspiration (PET)) basin during period from 1982 2022, we utilized multivariate statistical approach analyze spatiotemporal patterns dynamics, identified variables, discerned respective impacts change (CC) human activities (HA) on these variations. Our analysis revealed a widespread greening trend across 93.1% YRB, with 83.2% exhibiting significant increases kNDVI (p < 0.05). Conversely, 6.9% vegetated areas displayed browning trend, particularly concentrated alpine urban areas. With Hurst exceeding 0.5 97.5% areas, YRB tends be extensively greened future. Climate variability emerges as pivotal determinant shaping diverse spatial temporal patterns, PRE exerting dominance 41.9% followed TEM (35.4%), SR (13%), PET (9.7%). Spatially, increased significantly enhanced growth arid zones, while controlled non-water-limited such irrigation zones. Vegetation dynamics were driven combination CC HA, relative contributions 55.8% 44.2%, respectively, suggesting that long-term dominant force. Specifically, contributed seen region southeastern part basin, human-induced factors benefited Loess Plateau (LP) inhibiting pastoral These findings provide critical insights inform formulation adaptation conservation thereby enhancing resilience environmental conditions.

Language: Английский

Citations

10
Coupling coordination analysis and key factors between urbanization and water resources in ecologically fragile areas: a case study of the Yellow River Basin, China DOI
Qiufeng Zhang, Yue Li,

Qingshen Kong

et al.

Environmental Science and Pollution Research, Journal Year: 2024, Volume and Issue: 31(7), P. 10818 - 10837

Published: Jan. 12, 2024

Language: Английский

Citations

9
Nonlinear effects of agricultural drought on vegetation productivity in the Yellow River Basin, China DOI
Yu‐Jie Ding, Lifeng Zhang, Yi He

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 948, P. 174903 - 174903

Published: July 20, 2024

Language: Английский

Citations

9
Spatiotemporal changes of Gross Primary Production in the Yellow River Basin of China under the influence of climate-driven and human-activity DOI Creative Commons
Hongzhe Li, Yi He, Lifeng Zhang

et al.

Global Ecology and Conservation, Journal Year: 2023, Volume and Issue: 46, P. e02550 - e02550

Published: June 21, 2023

Yellow River Basin of China is an important ecological reserve. However, the spatiotemporal patterns Gross Primary Production (GPP) in are unclear from interannual, seasonal and vegetation-type perspectives. The interactive effects temperature, precipitation, leaf area index evapotranspiration on GPP climate-driven human-activity contributions to remain unclear. This study uses solar-induced chlorophyll fluorescence data as indicator. Spatiotemporal characteristics explored during 2001–2020 Geodetector Terrestrial ecosystem model introduced dissect driving mechanisms under interaction multiple factors clarify GPP. results show a general upward trend 2001–2020. local areas where climate change human activity intense rapid decline, especially large medium-sized cities with settlements. ranking single index> precipitation> evapotranspiration> explanatory power for spatial heterogeneity after multi-factor shows nonlinear enhancement. positive effect concentrated grassland Qinghai Tibet Plateau Qilian Mountains west Basin. mainly manifested through crops, southeastern farming region, showing significant variations. provides theoretical basis protection sustainable development China.

Language: Английский

Citations

22
Widespread Increasing Ecosystem Water Limitation During the Past Three Decades in the Yellow River Basin, China DOI
Fubo Zhao, Xi Wang, Shuai Ma

et al.

Journal of Geophysical Research Biogeosciences, Journal Year: 2023, Volume and Issue: 128(2)

Published: Jan. 20, 2023

Abstract Terrestrial ecosystems provide crucial ecosystem services to human beings, and their functions are largely dependent on soil moisture availability. Although many studies have evaluated the effects of vegetation climate changes at scale, in water limitation remain poorly understood. This study spatiotemporal Yellow River Basin (YRB)—the second largest river basin China—during 1982–2016 identified major drivers by establishing index (ELI) using moisture, transpiration, net radiation, air temperature. The results show a significant widespread increase YRB during 35‐year period. Temporally, areas with positive ELI (water‐limited regime) exhibited upward trend ( p < 0.01). Spatially, above 75.0% total showed an ELI. Almost all trends over this Further analysis two different but comparable methods, partial correlation Lindeman‐Merenda‐Gold, that change was driver limitation, contributions more than 35.0%. Air temperature atmospheric CO 2 contributed comparably ELI, followed precipitation changes. These findings improve understanding pattern underlying mechanisms greening warming YRB.

Language: Английский

Citations

18