Spatiotemporal changes of gross primary productivity and its response to drought in the Mongolian Plateau under climate change

Zhao, Xuqin; Luo, Min; Meng, Fanhao; Sa, Chula; Bao, Shanhu; Bao, Yuhai

doi:10.1007/s40333-024-0090-3

Cited by 3 publications

(1 citation statement)

References 77 publications

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“…The GPP obtained in this experiment increased by 7.82% over the 20-year period, with an average increase of 3.91% per decade [47], which is basically consistent with the experimental results of Bo et al The regions with more significant growth are mainly located in South America, Central Africa, and parts of South Asia. While Zhao et al found that most of the vegetation GPP in the highlands showed a decreasing trend [48], the higher altitude areas in this experiment, such as the Andes in western South America, also showed a decreasing trend in the vegetation GPP; however, the GPP in the plains increased more rapidly, which is hypothesized to be affected by topographic factors. Overall, the regions with increasing trends in GPP in the tropics are mostly north of the equator, and the regions with decreasing trends are mostly south of the equator.…”

Section: Overall Increasing Trend In Tropical Gppcontrasting

confidence: 55%

Spatiotemporal Evolution and Impact Mechanisms of Gross Primary Productivity in Tropics

Chen,

Zhang,

Guo

et al. 2024

Forests

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Gross primary productivity (GPP), representing organic carbon fixation through photosynthesis, is crucial for developing science-based strategies for sustainable development. Given that the tropical region harbors nearly half of all species, it plays a pivotal role in safeguarding the global environment against climate change and preserving global biodiversity. Thus, investigating changes in vegetation productivity within this region holds substantial practical importance for estimating global vegetation productivity. In this study, we employed an enhanced P model to estimate vegetation GPP in the tropical region from 2001 to 2020, based on which we quantified the spatiotemporal changes and associated mechanisms. The results reveal that the annual mean GPP in the tropical region ranged from 2603.9 to 2757.1 g·cm−2 a−1, demonstrating an overall apparent increasing trend. Inland areas were mainly influenced by precipitation, while coastal areas were primarily influenced by temperature. Land cover changes, especially conversion to cropland, significantly influence GPP, with deciduous—evergreen forest transitions causing notable decreases. Climate change emerges as the dominant factor affecting GPP, as indicated by the contribution rate analysis. This research interprets the spatiotemporal pattern and mechanisms of GPP in the tropics, offering valuable insights for sustainable ecosystem management.

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Section: Overall Increasing Trend In Tropical Gppcontrasting

confidence: 55%

Spatiotemporal Evolution and Impact Mechanisms of Gross Primary Productivity in Tropics

Chen,

Zhang,

Guo

et al. 2024

Forests

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Impacts of climate change and human activities on vegetation dynamics on the Mongolian Plateau, East Asia from 2000 to 2023

Yan,

Cheng,

Xin

et al. 2024

J. Arid Land

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Analysis of Changes in Forest Vegetation Peak Growth Metrics and Driving Factors in a Typical Climatic Transition Zone: A Case Study of the Funiu Mountain, China

Tang,

Wang,

Cong

et al. 2024

Remote Sensing

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Phenology and photosynthetic capacity both regulate carbon uptake by vegetation. Previous research investigating the impact of phenology on vegetation productivity has focused predominantly on the start and end of growing seasons (SOS and EOS), leaving the influence of peak phenology metrics—particularly in typical climatic transition zones—relatively unexplored. Using a 24-year (2000–2023) enhanced vegetation index (EVI) dataset from the Moderate Resolution Imaging Spectroradiometer (MODIS), we extracted and examined the spatiotemporal variation for peak of season (POS) and peak growth (defined as EVImax) of forest vegetation in the Funiu Mountain region, China. In addition to quantifying the factors influencing the peak phenology metrics, the relationship between vegetation productivity and peak phenological metrics (POS and EVImax) was investigated. Our findings reveal that POS and EVImax showed advancement and increase, respectively, negatively and positively correlated with vegetation productivity. This suggested that variations in EVImax and peak phenology both increase vegetation productivity. Our analysis also showed that EVImax was heavily impacted by precipitation, whereas SOS had the greatest effect on POS variation. Our findings highlighted the significance of considering climate variables as well as biological rhythms when examining the global carbon cycle and phenological shifts in response to climate change.

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Spatiotemporal changes of gross primary productivity and its response to drought in the Mongolian Plateau under climate change

Cited by 3 publications

References 77 publications

Spatiotemporal Evolution and Impact Mechanisms of Gross Primary Productivity in Tropics

Spatiotemporal Evolution and Impact Mechanisms of Gross Primary Productivity in Tropics

Impacts of climate change and human activities on vegetation dynamics on the Mongolian Plateau, East Asia from 2000 to 2023

Analysis of Changes in Forest Vegetation Peak Growth Metrics and Driving Factors in a Typical Climatic Transition Zone: A Case Study of the Funiu Mountain, China

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