Long-term effects of rewetting and drought on GPP in a temperate peatland based on satellite remote sensing data

Zhou, Yanbo; Sachs, Torsten; Li, Zhan; Pang, Yuwen; Xu, Jianping; Kalhori, Aram; Wille, Christian; Peng, Xiaoxue; Fu, Xianhao; Wu, Yi‐Long; Lin, Wenxiong

doi:10.1016/j.scitotenv.2023.163395

Cited by 4 publications

(2 citation statements)

References 52 publications

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“…Peatlands are important building blocks for water retention and biodiversity. Different forms of use and management, as well as the water management of peatlands, can change their function as a habitat, the hydrological conditions, and the dynamics of the release and storage of substances, especially climate-relevant gases [52,53]. In the context of climate change, peatlands are of considerable interest to science, society, and politics, both globally and nationally.…”

Section: Discussionmentioning

confidence: 99%

Natural Climate Protection through Peatland Rewetting: A Future for the Rathsbruch Peatland in Germany

Schneider,

Fauk,

Mihai

et al. 2024

Land

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Draining peatlands to create agricultural land has been the norm in Europe, but in the context of climate change and the loss of biodiversity, these rich ecosystems may reactivate their functions as greenhouse gas sinks and retreat spaces for animals and plants. Against this background, the National Moor Rewetting Strategy was put into effect in Germany in 2023, together with the Natural Climate Protection Action Plan. This article examines the methodology of peatland rewetting from scientific, administrative, social, and technical perspectives. The article focuses on an example of moor rewetting in central Germany: the Rathsbruch moor near the municipality of Zerbst, Saxony-Anhalt. To illustrate the importance of rewetting projects for degraded peatlands, five scenarios with different target soil water levels were considered, and the associated greenhouse gas emissions were calculated for a period of five years. For the planning solution, an estimate of the medium-to-long-term development of the habitat types was made based on current use and the dynamics typical of the habitat. The results for the Rathsbruch moor area showed that increasing the water level in steps of 1, 0.8, or 0.5 m has no significant influence on reducing the CO2 emissions situation, while a depth of 0.3 m has a slight influence. When the water was raised to 0.1 m below the surface (Scenario 5), a significant CO2 reduction was observed. The calculated avoided CO2 costs due to environmental damage show that the environmental benefits multiply with every decimeter of water level increase. The rising groundwater levels and extensification favor the establishment of local biotopes. This means that two of the biggest man-made problems (extinction of species and climate change) can be reduced. Therefore, this research is applicable to the development and planning of recultivation work at municipal and regional levels in Germany and beyond within the framework of EU restoration policy.

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Section: Discussionmentioning

confidence: 99%

Natural Climate Protection through Peatland Rewetting: A Future for the Rathsbruch Peatland in Germany

Schneider,

Fauk,

Mihai

et al. 2024

Land

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“…Although research using EC systems and remote sensing data to study the carbon flux and carbon cycling processes in grasslands is increasing, research on carbon flux in the alpine grassland ecosystem of the Tien Shan Mountains is currently limited. In previous studies, most research focused on either using eddy covariance data or remote sensing data separately to study carbon flux [27,28]; there is a lack of research that combines both approaches. Therefore, the objectives of our study are (1) to investigate the temporal variations in carbon flux in the alpine grassland ecosystem of the Tien Shan Mountains, (2) to explore the main influencing factors of carbon flux in relation to meteorological factors, and (3) to present a remote sensing spatial distribution map of carbon flux in the Tien Shan region and analyze the spatial distribution pattern of carbon flux in the alpine grassland ecosystem of the Tien Shan Mountains.…”

Section: Introductionmentioning

confidence: 99%

Temporal and Spatial Variations in Carbon Flux and Their Influencing Mechanisms on the Middle Tien Shan Region Grassland Ecosystem, China

Zhang,

Wang,

Mamtimin

et al. 2023

Remote Sensing

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Grassland ecosystems are an important component of global terrestrial ecosystems and play a crucial role in the global carbon cycle. Therefore, it is important to study the carbon dioxide (CO2) process in the Middle Tien Shan grassland ecosystem, which can be regarded as a typical representative of the mountain grasslands in Xinjiang. Eddy covariance (EC) and the global carbon fluxes dataset (GCFD) were utilized to continuously monitor the Middle Tien Shan grassland ecosystem in Xinjiang throughout the 2018 growing season. The findings revealed notable daily and monthly fluctuations in net ecosystem exchange (NEE), gross primary productivity (GPP), and ecosystem respiration (Reco). On a daily basis, there was net absorption of CO2 during the day and net emission during the night. The grassland acted as a carbon sink from 6:00 to 18:00 and as a carbon source for the remaining hours of the day. On a monthly scale, June and July served as carbon sinks, whereas the other months acted as carbon sources. The accumulated NEE, GPP, and Reco during the growing season were −329.49 g C m−2, 779.04 g C m−2, and 449.55 g C m−2, respectively. On the half-hourly and daily scales, soil temperature (Ts) was the main contributor to CO2 fluxes and had the greatest influence on the variations in CO2 fluxes. Additionally, air temperature (Ta) showed a strong correlation with CO2 fluxes. The grassland ecosystems exhibited the strongest CO2 uptake, reaching its peak at soil temperatures of 25 °C. Moreover, as the air temperatures rose above 15 °C, there was a gradual decrease in NEE, while CO2 uptake increased. The applicability of GCFD data is good in the grassland ecosystem of the Middle Tien Shan Mountains, with correlations of 0.59, 0.81, and 0.73 for NEE, GPP, and Reco, respectively, compared to field observations. In terms of remote sensing spatial distribution, the Middle Tien Shan grassland ecosystem exhibits a carbon sink phenomenon.

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Impact of seasonal global land surface temperature (LST) change on gross primary production (GPP) in the early 21st century

wang,

Zhang,

Chen

et al. 2024

Sustainable Cities and Society

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Long-term effects of rewetting and drought on GPP in a temperate peatland based on satellite remote sensing data

Cited by 4 publications

References 52 publications

Natural Climate Protection through Peatland Rewetting: A Future for the Rathsbruch Peatland in Germany

Natural Climate Protection through Peatland Rewetting: A Future for the Rathsbruch Peatland in Germany

Temporal and Spatial Variations in Carbon Flux and Their Influencing Mechanisms on the Middle Tien Shan Region Grassland Ecosystem, China

Impact of seasonal global land surface temperature (LST) change on gross primary production (GPP) in the early 21st century

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