The global decline in the sensitivity of vegetation productivity to precipitation from 2001 to 2018

Zeng, Xiaogang; Hu, Zhongmin; Chen, Anping; Yuan, Wenping; Hou, Guolong; Han, Daorui; Liang, Minqi; Di, Kai; Cao, Ruochen; Luo, Dengnan

doi:10.1111/gcb.16403

Cited by 75 publications

(33 citation statements)

References 60 publications

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“…However, our findings were not in line with the results of Zeng et al. (2022), who reported a global decline of vegetation‐water sensitivity during 2001–2018. Consequently, this increasing water limitation may imply a potential instability mechanism for ecosystems under climate change in the YRB.…”

Section: Discussioncontrasting

confidence: 99%

“…The present study confirmed this phenomenon at the regional scale and highlighted the need for the conservation and efficient use of water resources in YRB. However, our findings were not in line with the results of Zeng et al (2022), who reported a global decline of vegetation-water sensitivity during 2001-2018. Consequently, this increasing water limitation may imply a potential instability mechanism for ecosystems under climate change in the YRB.…”

Section: Discussioncontrasting

confidence: 99%

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Widespread Increasing Ecosystem Water Limitation During the Past Three Decades in the Yellow River Basin, China

Zhao

Wang

et al. 2023

JGR Biogeosciences

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Terrestrial ecosystems are essential for the provision of services for living organisms and CO 2 uptake. Changes in the state and functions of ecosystems can substantially impact human economic development (Denissen et al., 2022). Vegetation is key to the exchange of water, energy, and carbon between the land surface and atmosphere, transpiration through plant stomata plays an important role in terrestrial ecosystems (Gentine et al., 2019;Humphrey et al., 2021). Changes in vegetation are thus explicitly linked with ecosystem conditions. Vegetation growth is largely determined by sufficient energy and nutrients, as well as soil moisture availability, especially in water-limited regions such as arid and semiarid regions (W. Li et al., 2022;Stocker et al., 2019). Changes in soil moisture can thus impact ecosystem status through water-vegetation feedback. For example, a decrease in soil moisture may strengthen the coupling between vegetation growth and soil moisture, driving ecosystems to more water limited conditions (Berg & Sheffield, 2018). Understanding the degree and spatiotemporal changes of ecosystem water limitation is crucial for the management and usage of ecosystem services.

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Section: Discussioncontrasting

confidence: 99%

Section: Discussioncontrasting

confidence: 99%

Widespread Increasing Ecosystem Water Limitation During the Past Three Decades in the Yellow River Basin, China

Zhao

Wang

et al. 2023

JGR Biogeosciences

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“…Conversely, regions with a significant negative correlation between SM and NDVI (P < 0.01) were labeled as "SM surplus" regions, where vegetation growth may be limited by energy-related factors. Recent reports (Denissen et al, 2022;Zeng et al, 2022;Y. Zhang et al, 2022) have indicated that the variations in the SM-NDVI interaction can be attributed to complex hydrometeorological changes during the study period.…”

Section: Methodsmentioning

confidence: 99%

“…In contrast, Zeng et al. (2022) found that the global water‐vegetation interaction has declined during recent decades. Such uncertainties pose a challenge to our understanding of vegetation‐climate feedbacks.…”

Section: Introductionmentioning

confidence: 91%

“…Similarly, Jiao et al (2021) also reported a significant increasing water constraint on vegetation by using drought (e.g., standard precipitation evapotranspiration index) and vegetation indicators across the North Hemisphere ecosystems. In contrast, Zeng et al (2022) found that the global water-vegetation interaction has declined during recent decades. Such uncertainties pose a challenge to our understanding of vegetation-climate feedbacks.…”

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confidence: 91%

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Enhanced Dependence of China's Vegetation Activity on Soil Moisture Under Drier Climate Conditions

Zhao

Wang

et al. 2023

JGR Biogeosciences

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Vegetation plays a crucial role in modulating water, carbon, and energy interactions between the land and atmosphere (Humphrey et al., 2018;Seddon et al., 2016). At the same time, vegetation also largely determines the status of ecosystems through its provisioning of ecosystem services for living organisms and carbon dioxide (CO 2 ) uptake (Piao et al., 2015). The latter is key for mitigating climate change by absorbing human-emitted CO 2 (Gentine et al., 2019). The growth of vegetation is largely determined by the availability of soil moisture (SM), especially in water-limited regions, such as arid and semiarid regions (Stocker et al., 2019;Zhao et al., 2019). Under a warming climate, SM has declined in many regions of the world due to decreased precipitation and increased water demand by the atmosphere induced by increased air temperature (Deng et al., 2020a;Jung et al., 2010). In this context, less SM combined with increased drought frequency (Dai, 2012;Zhao et al., 2022c) may drive vegetation to be more soil-water dependent (Berg & Sheffield, 2018). Quantifying and understanding the dependence of vegetation on SM under current climate warming will greatly help in ecosystem management when facing future warming climates.Past studies have documented a tight positive relationship between SM and vegetation in water-limited regions (H.

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Correlations of the root–shoot ratio with soil water content in the patchy alpine grassland of the north‐eastern Qinghai–Tibetan Plateau using electrical resistivity tomography

Zuo,

Li,

Yang

et al. 2023

Ecohydrology

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The root–shoot biomass ratio (R:S) changing the soil water redistribution is not well understood due to a lack of nondestructive technology to characterize the coexistence of plants and soil. This study aims to assess the correlations of the R:S ratios of Achnatherum splendens with soil water content by electrical resistivity tomography (ERT) on the north‐western Qinghai–Tibet Plateau (QTP). During the growing season, an experimental plot including bare patches (BK) and low‐ (LD) and high‐density (HD) A. splendens subplots was designed to quantify soil volumetric water content under different soil depths and antecedent total precipitation conditions for 7 days (AP7). The results showed that the R:S ratio was positive with soil water content in the surface soil layer of 0–10 cm. The synergistic effect of the R:S ratio on soil water in the surface soil layer promoted an increase in surface soil water. However, the nonsynergistic effect in the middle soil layer weakened the soil water increasing, and the effect of the R:S ratio on soil water in the deep soil layer of 40–80 cm was not obvious. In HD, soil water increased between 0.08% and 0.95% and was highest under AP7 > 20 mm conditions. In LD, soil water increased in the surface and deep soil layers but decreased in the middle soil layer, especially under AP7 = 10–20 mm conditions (−1.23%). These findings provide valuable insights that patchy alpine grass survival strategy under future climate change on the QTP, and the results are beneficial to the development of soil–plant–atmosphere continuum models.

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The global decline in the sensitivity of vegetation productivity to precipitation from 2001 to 2018

Cited by 75 publications

References 60 publications

Widespread Increasing Ecosystem Water Limitation During the Past Three Decades in the Yellow River Basin, China

Widespread Increasing Ecosystem Water Limitation During the Past Three Decades in the Yellow River Basin, China

Enhanced Dependence of China's Vegetation Activity on Soil Moisture Under Drier Climate Conditions

Correlations of the root–shoot ratio with soil water content in the patchy alpine grassland of the north‐eastern Qinghai–Tibetan Plateau using electrical resistivity tomography

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