Climatic warming strengthening water constraint on seasonal peak photosynthesis in northern ecosystems DOI Creative Commons
Shuo Zhang, Xingan Chen, Yuefei Huang

et al.

Research Square (Research Square), Journal Year: 2023, Volume and Issue: unknown

Published: Nov. 14, 2023

Abstract The seasonal peak of vegetation photosynthesis is a key indicator terrestrial ecosystem productivity, bearing significant impacts on atmospheric CO 2 concentrations. Recent remote sensing observations have indicated an escalating trend in photosynthesis, yet the sustained trajectory this increase under warming remains uncertain. Notably, water availability and temperature emerge as paramount limiting factors governing photosynthesis. To probe these constraints, here we employ solar-induced chlorophyll fluorescence surrogate for focusing examination water-related restrictions northern ecosystems. Our findings unveil discernible expansion water-constrained zones ecosystems over past two decades. A general relationship identified between mean annual precipitation that effectively distinguishes temperature-constrained ecosystems, which can be used to predict future changes constraint status various climate change scenarios. results show regions will further expand by 4.51% 11.13% 2100 SSP245 SSP585

Language: Английский

Vegetation Types Shift Physiological and Phenological Controls on Carbon Sink Strength in a Coastal Zone DOI
Siyu Wei, Adina Paytan, Xiaojing Chu

et al.

Global Change Biology, Journal Year: 2025, Volume and Issue: 31(1)

Published: Jan. 1, 2025

ABSTRACT The carbon sink function performed by the different vegetation types along environmental gradient in coastal zones plays a vital role mitigating climate change. However, inadequate understanding of its spatiotemporal variations across and associated regulatory mechanisms hampers determining potential shifts changing climate. Here, we present long‐term (2011–2022) eddy covariance measurements net ecosystem exchange (NEE) CO 2 at three sites with (tidal wetland, nontidal cropland) zone to examine type on annual strength. We found that study are stable sinks influenced their distinct physiological phenological factors. NEE tidal cropland were determined predominantly seasonal peaks uptake, release, duration uptake period. Furthermore, changes sensitive climatic variables, as spring mean air temperature reduced strength maximum daily precipitation summer it global radiation elicited same effect cropland. Finally, worldwide database was compiled, using which further validated consistency biological controls. Overall, these results emphasize importance considering underlying influence for accurate forecasting dynamics under

Language: Английский

Citations

2
Alpine grassland greening on the Northern Tibetan Plateau driven by climate change and human activities considering extreme temperature and soil moisture DOI

Yuanguo Liu,

Xiaoke Zhang,

Xindong Du

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 916, P. 169995 - 169995

Published: Jan. 17, 2024

Language: Английский

Citations

12
Evaluation of PlanetScope-detected plant-specific phenology using infrared-enabled PhenoCam observations in semi-arid ecosystems DOI
Yuxia Liu, Xiaoyang Zhang, Yu Shen

et al.

ISPRS Journal of Photogrammetry and Remote Sensing, Journal Year: 2024, Volume and Issue: 210, P. 242 - 259

Published: March 29, 2024

Language: Английский

Citations

6
Ecological dichotomies of solar energy expansion: resilience in arid regions versus fragility in humid ecosystems DOI Creative Commons

Jianhua Xiao,

Panxing He, Yongping Li

et al.

Frontiers in Plant Science, Journal Year: 2025, Volume and Issue: 16

Published: March 4, 2025

The deployment of Utility-Scale Solar Energy (USSE) systems is increasingly recognized as a cornerstone strategy in mitigating climate change. However, the environmental ramifications such extensive developments remain subject considerable debate, with marked regional variability their ecological effects, particularly across different biomes. As such, there pressing need for comprehensive, systems-level investigations to evaluate multifaceted impacts USSE both arid and humid ecosystems. Here, we undertake an exhaustive assessment utilizing high-resolution (10 m) dataset photovoltaic (PV) station distributions China, complemented by Landsat-derived NDVI remote sensing data from 2019 2023. This approach facilitates quantification dynamic effects PV infrastructure development on vegetation greenness (NDVI mean max ), allows scale-dependent responses two contrasting regions: zone Ningxia Anhui. Our results indicate that region, construction facilities has negligible effect greenness, inter-annual variations remaining consistently below 0.05, no discernible change . In contrast, region led dramatic deterioration declining sharply 0.42 0.20—representing reduction over 50%, during growing season (April October). Furthermore, relationship between scale installations impact was characterized pronounced non-linearity, large-scale plants (spanning >10,000 pixels) causing near-total collapse, driving toward near-zero. Collectively, these findings suggest sparse enhanced microclimatic regulation characteristic ecosystems provide greater resilience external disturbances, whereas high-biomass typical regions significantly more vulnerable perturbations. Based insights, advocate strategic prioritization adaptability future development, alongside incorporation restoration measures optimization facility mitigate potential disturbances. study emphasizes synergistic optimize energy transition conservation context variability, offering solid scientific basis national-scale planning site selection projects.

Language: Английский

Citations

0
Uncovering the role of solar radiation and water stress factors in constraining decadal intra‐site spring phenology variability in diverse ecosystems across the Northern Hemisphere DOI Creative Commons
Yating Gu, Lin Meng, Yantian Wang

et al.

New Phytologist, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

The spring phenology has advanced significantly over recent decades with climate change, impacting large-scale biogeochemical cycles, feedback, and other essential ecosystem processes. Although numerous prognostic models have been developed for phenology, regional analyses of the optimality (OPT) strategy model that incorporate environmental variables beyond temperature photoperiod remain lacking. We investigated roles solar radiation (SR) three water stress factors (precipitation (P), soil moisture, vapor pressure deficit (VPD)) on from 1982 to 2015 using OPT Global Inventory Modeling Mapping Studies NDVI3g dataset data TerraClimate, CRU_TS, Land Data Assimilation System across Northern Hemisphere (> 30°N). Our results show SR impacted intrasite decadal variability, dominant in grassland ecosystems while dominated rest types. Enhanced incorporating (OPT-S) VPD (OPT-VPD) outperformed original model, likely due improved representation adaptive optimize photosynthetic carbon gain minimizing frost risk. research enhances understanding key drivers influencing variation contributes more accurate forecasts ecological responses global change.

Language: Английский

Citations

0
Global vegetation dynamics under decreased terrestrial water storage: Insights into water stress response DOI

Yuanhang Yang,

Jiabo Yin, Louise Slater

et al.

Agricultural and Forest Meteorology, Journal Year: 2025, Volume and Issue: 368, P. 110549 - 110549

Published: April 12, 2025

Language: Английский

Citations

0
Widespread negative impact of daytime warming on vegetation productivity DOI
Ying Du, Erqian Cui, Songbo Tang

et al.

One Earth, Journal Year: 2025, Volume and Issue: unknown, P. 101284 - 101284

Published: April 1, 2025

Language: Английский

Citations

0
Spatial and temporal variation of net primary productivity of herbaceous marshes and its climatic drivers in China DOI Creative Commons
Liyuan Wu, Xiangjin Shen, Jiaqi Zhang

et al.

Frontiers in Plant Science, Journal Year: 2024, Volume and Issue: 15

Published: May 14, 2024

Herbaceous marshes are widely distributed in China and vital to regional ecological security sustainable development. Vegetation net primary productivity (NPP) is a indicator of vegetation growth. Climatic change can significantly affect NPP, but variations NPP herbaceous marsh their responses climate remain unclear. Using meteorological data MODIS during 2000-2020, this study analyzed the spatial temporal Chinese marshes. We found that annual increased at rate 3.34 g C/m 2 /a from 2000 2020, with an average value 336.60 . The total precipitation enhanced national whereas mean temperature had no significant effect on NPP. Regionally, positive temperate semi-arid arid semi-humid humid regions. For first time, we discovered asymmetry effects daytime nighttime temperatures China. In regions, summer decreased while Tibetan Plateau, autumn temperature, as well could increase This highlights different influences seasonal indicates differential should be considering simulating terrestrial ecosystem models, especially under background global asymmetric diurnal warming.

Language: Английский

Citations

3
Elevation-Dependent Contribution of the Response and Sensitivity of Vegetation Greenness to Hydrothermal Conditions on the Grasslands of Tibet Plateau from 2000 to 2021 DOI Creative Commons

Yatang Wu,

Changliang Shao, Jing Zhang

et al.

Remote Sensing, Journal Year: 2024, Volume and Issue: 16(1), P. 201 - 201

Published: Jan. 3, 2024

The interrelation between grassland vegetation greenness and hydrothermal conditions on the Tibetan Plateau demonstrates a significant correlation. However, understanding spatial patterns degree of this correlation, especially in relation to minimum maximum air temperatures across various vertical gradient zones Plateau, necessitates further examination. Utilizing normalized difference phenology index (NDPI) considering four distinct (minimum, maximum, mean temperature, precipitation) during growing season, an analysis was conducted correlation NDPI with plateau elevations from 2000 2021. Results indicate that grasslands is spatially varied. There pronounced negative temperature precipitation northeastern plateau, while areas exhibit stronger positive correlations temperature. Additionally, as elevation increases, sensitivity alpine significantly intensify, contrary effects observed elevational changes primarily unimodal pattern Plateau. These findings emphasize are both elevation-dependent distinct.

Language: Английский

Citations

2
Asymmetric warming has different impacts on vegetation growth across various vegetation types on the Tibetan Plateau DOI Creative Commons
Jinxia Lv, Wenwu Zhao, Bin He

et al.

GIScience & Remote Sensing, Journal Year: 2024, Volume and Issue: 61(1)

Published: May 7, 2024

Global warming could affect vegetation growth, while land surface temperature has exhibited an asymmetric pattern over the past 50 years. The Tibetan Plateau, known as "the roof of world," experiences almost twice high global average. However, previous research largely overlooked impacts this asymmetrical on growth and temporal changes in these impacts. In study, we assess effects at regional different types by using partial correlation analysis, reveal strength time moving window. results showed that there had been a significant greening trend (1.01 × 10−3 yr−1, p < 0.01) Normalized Difference Vegetation Index (NDVI) during growing season, well trends both maximum temperatures (Tmax, 0.0354°C minimum (Tmin, 0.0333°C 2000–2021. Under background warming, grassland stronger Tmin than Tmax NDVI, opposite were observed for forests. Over time, response NDVI to intensified. This study highlights importance projection climate change similarly vulnerable ecosystems worldwide.

Language: Английский

Citations

2