Progress and challenges in remotely sensed terrestrial carbon fluxes

Wang, Tao; Zhang, Yao; Yue, Chao; Wang, Yilong; Wang, Xiaoyi; Lyu, Guanting; Wei, Jianjun; Yang, Hui; Piao, Shilong

doi:10.1080/10095020.2024.2336599

Geo-spatial Information Science

2024

DOI: 10.1080/10095020.2024.2336599

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Progress and challenges in remotely sensed terrestrial carbon fluxes

Tao Wang,

Yao Zhang,

Chao Yue

et al.

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2024

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Cited by 4 publications

References 140 publications

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Negative Asymmetric Response of Pantropical Gross Primary Productivity to Precipitation Anomalies

Fan,

Dong,

Ciais

et al. 2024

Earth's Future

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The carbon sink in pantropical biomes play a crucial role in modulating the inter‐annual variations of global terrestrial carbon balance and is threatened by extreme climate events. However, it has not been carefully examined whether an increase in tropical gross primary productivity (GPP) can compensate the decrease during precipitation anomalies. Using the asymmetry index (AI) and multiple GPP products, we assessed responses of pantropical GPP to precipitation anomalies during 2001–2022. Positive AI indicates that GPP increases are greater than GPP decreases during precipitation anomalies, and vice versa. Our results showed an average negative pantropical GPP asymmetry, that is, GPP decreases exceeded the GPP increases during precipitation anomalies. In addition, a positive AI was found in tropical hyper‐arid and arid regions, which is opposite to the negative AI observed in tropical semi‐arid, sub‐humid, and humid regions. This suggest that tropical GPP asymmetry changes from positive to negative as the moisture increases. Notably, a significant decreasing trend of negative AI was observed over the entire tropical region, indicating that the negative effect of inter‐annual precipitation variations on pantropical vegetation productivity has enhanced. Considering the model predicted increasing climate variability and extremes, the negative impact of precipitation variability on tropical carbon cycle may continue to intensify. Lastly, the divergence in AI estimates among multiple GPP products highlight the need to further improve our understanding of the response of tropical carbon cycle to climate changes, especially for the tropical humid regions.

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Negative Asymmetric Response of Pantropical Gross Primary Productivity to Precipitation Anomalies

Fan,

Dong,

Ciais

et al. 2024

Earth's Future

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Optimal parameter schemes for global and regional gross primary productivity estimation: a comparative analysis

Li,

Guan,

Huanfeng

2024

Geo-spatial Information Science

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The landscape of city‐level GHG emission accounts in Africa

Liu,

Shan,

Kuik

et al. 2024

J of Industrial Ecology

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Cities are important actors in the global challenge of tackling climate change. They are not only responsible for the majority of emissions but also highly capable of taking action. An important precondition for effective climate mitigation is a city‐level greenhouse gas emission inventory to guide mitigation action. Yet, most cities in developing countries, in particular African cities, lack that crucial information. This study aims to assess the current state of the development of African cities' emission inventories. A total of 270 inventories from 137 cities across 54 African countries were identified from 15 research articles, 5 reports, and 3 data platforms. We find the lack of standardized protocols results in inventories that are often not comparable, while data scarcity emerged as a common problem. We observe that insufficient engagement from local governments impedes the creation of a data‐rich environment. Additionally, current inventory protocols do not fully address the data limitations faced by African cities, further hindering inventory development. To mitigate these challenges, multi‐agent collaboration is essential to enhance the accounting capabilities of local governments. Developing refined protocols that consider data constraints is necessary. Moreover, advanced technologies may provide opportunities to overcome data bottlenecks.

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Progress and challenges in remotely sensed terrestrial carbon fluxes

Cited by 4 publications

References 140 publications

Negative Asymmetric Response of Pantropical Gross Primary Productivity to Precipitation Anomalies

Negative Asymmetric Response of Pantropical Gross Primary Productivity to Precipitation Anomalies

Optimal parameter schemes for global and regional gross primary productivity estimation: a comparative analysis

The landscape of city‐level GHG emission accounts in Africa

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