scholarly journals Methane Emissions from Subtropical and Tropical Mangrove Ecosystems in Taiwan

Forests ◽  
2020 ◽  
Vol 11 (4) ◽  
pp. 470
Author(s):  
Chiao-Wen Lin ◽  
Yu-Chen Kao ◽  
Meng-Chun Chou ◽  
Hsin-Hsun Wu ◽  
Chuan-Wen Ho ◽  
...  
Keyword(s):  
Soil Properties ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Carbon Storage ◽  
Organic Matter Content ◽  
Avicennia Marina ◽  
Soil Parameters ◽  
Gas Emissions ◽  
Mangrove Ecosystems ◽  
Mangrove Soils

Mangroves are one of the blue carbon ecosystems. However, greenhouse gas emissions from mangrove soils may reduce the capacity of carbon storage in these systems. In this study, methane (CH4) fluxes and soil properties of the top 10 cm layer were determined in subtropical (Kandelia obovata) and tropical (Avicennia marina) mangrove ecosystems of Taiwan for a complete seasonal cycle. Our results demonstrate that CH4 emissions in mangroves cannot be neglected when constructing the carbon budgets and estimating the carbon storage capacity. CH4 fluxes were significantly higher in summer than in winter in the Avicennia mangroves. However, no seasonal variation in CH4 flux was observed in the Kandelia mangroves. CH4 fluxes were significantly higher in the mangrove soils of Avicennia than in the adjoining mudflats; this trend, however, was not necessarily recapitulated at Kandelia. The results of multiple regression analyses show that soil water and organic matter content were the main factors regulating the CH4 fluxes in the Kandelia mangroves. However, none of the soil parameters assessed show a significant influence on the CH4 fluxes in the Avicennia mangroves. Since pneumatophores can transport CH4 from anaerobic deep soils, this study suggests that the pneumatophores of Avicennia marina played a more important role than soil properties in affecting soil CH4 fluxes. Our results show that different mangrove tree species and related root structures may affect greenhouse gas emissions from the soils.

scholarly journals Contrasting Effects of Local Environmental and Biogeographic Factors on the Composition and Structure of Bacterial Communities in Arid Monospecific Mangrove Soils

2022 ◽  
Author(s):  
T. Thomson ◽  
M. Fusi ◽  
M. F. Bennett-Smith ◽  
N. Prinz ◽  
E. Aylagas ◽  
...  
Keyword(s):  
Bacterial Community ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Bacterial Communities ◽  
Gas Emissions ◽  
Mangrove Ecosystems ◽  
Composition And Structure ◽  
Mangrove Soils ◽  
Atmospheric Carbon

Mangrove ecosystems are increasingly being recognized for their potential to sequester atmospheric carbon, thereby mitigating the effects of anthropogenically driven greenhouse gas emissions. The bacterial community in the soils plays an important role in the breakdown and recycling of carbon and other nutrients.

Effects of rice straw and nitrogen fertilization on greenhouse gas emissions and carbon storage in tropical flooded soil planted with rice

2012 ◽  
Vol 124 ◽  
pp. 119-130 ◽  
Author(s):  
P. Bhattacharyya ◽  
K.S. Roy ◽  
S. Neogi ◽  
T.K. Adhya ◽  
K.S. Rao ◽  
...  
Keyword(s):  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Rice Straw ◽  
Carbon Storage ◽  
Nitrogen Fertilization ◽  
Flooded Soil ◽  
Gas Emissions

scholarly journals ESTIMATING CARBON AND GREENHOUSE GAS EMISSIONS IN REMOTE REGIONS OF CANADA

2021 ◽  
Vol XLIII-B3-2021 ◽  
pp. 575-580
Author(s):  
I. Ituen ◽  
B. Hu
Keyword(s):  
Soil Properties ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Natural Forests ◽  
Northern Ontario ◽  
Gas Emissions ◽  
Soil Carbon Stock ◽  
Growing Seasons ◽  
Environmental Properties ◽  
Management Schemes

Abstract. Longer growing seasons in Northern Ontario are predicted, as a result of climate change. There is the expectation that there will be increased land use conversion from natural forests in Northern Ontario to capitalise on the new economic opportunities resulting from longer growing seasons. This study examines the impacts the land conversion – from forest to agricultural environment – has on the greenhouse gas emissions and soil properties. We use remote sensing technologies for detecting these changes. This paper highlights an automatic method we developed for change detection. The method was applied to the satellite data over a predominantly vegetated area of Northern Ontario for the period 2001 to 2016. The study showed how the forest air and soil properties transform over time from various land disturbances, and how subsequent management schemes affect the environmental properties such as greenhouse gas emissions and the soil carbon stock.

scholarly journals Global Warming Mitigating Role of Wood Products from Washington State’s Private Forests

Forests ◽  
2020 ◽  
Vol 11 (2) ◽  
pp. 194 ◽  
Author(s):  
Indroneil Ganguly ◽  
Francesca Pierobon ◽  
Edie Sonne Hall
Keyword(s):  
Global Warming ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Carbon Storage ◽  
Radiative Forcing ◽  
Timber Harvest ◽  
Gas Production ◽  
Wood Products ◽  
Private Forests ◽  
Gas Emissions

Similar to standing trees in the forests, wood products play an important role in enhancing the global sequestered carbon pool, by retaining the atmospheric carbon in a sequestered form for the duration of the functional life of the wood products. This study uses a temporal radiative forcing analysis along with the functional half-life of different wood products to evaluate the impacts of wood products on global warming, including carbon storage and life cycle greenhouse gas production/extraction emissions. The methodology is applied to Washington State’s aboveground biomass and timber harvest data, and to the State’s comprehensive wood products mix. A moderate harvest rate simulation within Washington Biomass Calculator is used to estimate state harvest level, and statewide wood products manufacturing data is used for developing wood product mix estimates. Using this method, we estimate that the temporal carbon storage leads to a global warming mitigation benefit equivalent to 4.3 million tCO2eq. Even after factoring in the greenhouse gas emissions associated with the harvest operations and wood products manufacturing processes, within the temporal model, the results show a net beneficial impact of approximately 1.7 million tCO2eq, on an annual basis. It can further be noted that Washington State’s annual biomass growth in its private forests exceeds its annual harvest, by a significant margin. This net yearly accumulation of biomass in the State’s private forests leads to additional global warming mitigation benefits equivalent to 7.4 million tCO2eq. Based on these results, we conclude that Washington’s private forestry industry is a net global warming mitigator for the State, equivalent to 12% of the State’s greenhouse gas emissions in 2015.

scholarly journals Simulating the effect of tillage practices with the global ecosystem model LPJmL (version 5.0-tillage)

2018 ◽  
Author(s):  
Femke Lutz ◽  
Tobias Herzfeld ◽  
Jens Heinke ◽  
Susanne Rolinski ◽  
Sibyll Schaphoff ◽  
...  
Keyword(s):  
Soil Properties ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Management Practices ◽  
Ecosystem Model ◽  
Environmental Indicators ◽  
Regional Patterns ◽  
Gas Emissions ◽  
No Till ◽  
The Impact

Abstract. The effects of tillage on soil properties (e.g. soil carbon and nitrogen), crop productivity, and global greenhouse gas emissions have been discussed in the last decades. Global ecosystem models are limited in simulating tillage. Hence, they do not allow for analyzing the effects of tillage and cannot evaluate, for example, reduced-tillage or no-till as mitigation practices for climate change. In this paper, we describe the implementation of tillage related practices in the global ecosystem model LPJmL. The model is subsequently evaluated against reported differences between tillage and no-till management on several soil properties. To this end, simulation results are compared with published meta-analysis on tillage effects. In general, the model is able to reproduce observed tillage effects on global, as well as regional patterns of carbon and water fluxes. However, modeled N-fluxes deviate from the literature and need further study. The addition of the tillage module to LPJmL 5.0 opens opportunities to assess the impact of agricultural soil management practices under different scenarios with implications for agricultural productivity, carbon sequestration, greenhouse gas emissions and other environmental indicators.

scholarly journals Effect of Chinese Milk Vetch (Astragalus sinicus L.) and Rice Straw Incorporated in Paddy Soil on Greenhouse Gas Emission and Soil Properties

Agronomy ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 717
Author(s):  
Qiaoying Ma ◽  
Jiwei Li ◽  
Muhammad Aamer ◽  
Guoqin Huang
Keyword(s):  
Greenhouse Gases ◽  
Soil Properties ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Rice Straw ◽  
Paddy Soil ◽  
Chemical Fertilizer ◽  
N2o Emissions ◽  
Gas Emissions ◽  
Chinese Milk Vetch

Paddy soil is an important emission source of agricultural greenhouse gases. The excessive application of chemical fertilizer to paddy soil is one of the important reasons for high greenhouse gas emissions. Emissions can be reduced through optimized agricultural management measures. The incorporation of Chinese milk vetch (CMV) and rice straw in the field to replace some of the chemical fertilizer can reduce the emissions of greenhouse gases, but the relationship between these emissions and soil properties after the incorporation of CMV and rice straw is unclear. Through the continuous determination of greenhouse gases and the physical and chemical properties of soil, it was found that the addition of CMV and straw could increase the emissions of methane (CH4) and carbon dioxide (CO2), but nitrous oxide (N2O) emissions were lower. The effect of the combined incorporating of CMV and rice straw on soil properties was more significant than CMV alone. It was also found that CH4 and CO2 emissions were positively correlated with microbial biomass carbon and nitrogen, pH, and soil catalase and β-xylosidase activities. In practice, we can reduce greenhouse gas emissions by water and fertilizer management.

scholarly journals Exploring the Relationships between Greenhouse Gas Emissions, Yields, and Soil Properties in Cropping Systems

Agriculture ◽  
2018 ◽  
Vol 8 (5) ◽  
pp. 62 ◽  
Author(s):  
Gevan Behnke ◽  
Cameron Pittelkow ◽  
Emerson Nafziger ◽  
María Villamil
Keyword(s):  
Soil Properties ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Cropping Systems ◽  
Gas Emissions

Sugarcane straw management for bioenergy: effects of global warming on greenhouse gas emissions and soil carbon storage

2019 ◽  
Vol 25 (4) ◽  
pp. 559-577 ◽  
Author(s):  
Gustavo V. Popin ◽  
Arthur K. B. Santos ◽  
Thiago de P. Oliveira ◽  
Plínio B. de Camargo ◽  
Carlos E. P. Cerri ◽  
...  
Keyword(s):  
Global Warming ◽  
Soil Carbon ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Carbon Storage ◽  
Soil Carbon Storage ◽  
Gas Emissions ◽  
Straw Management ◽  
Sugarcane Straw

scholarly journals Edaphic factors controlling summer (rainy season) greenhouse gas emissions (CO2 and CH4) from semiarid mangrove soils (NE-Brazil)

2016 ◽  
Vol 542 ◽  
pp. 685-693 ◽  
Author(s):  
Gabriel N. Nóbrega ◽  
Tiago O. Ferreira ◽  
M. Siqueira Neto ◽  
Hermano M. Queiroz ◽  
Adriana G. Artur ◽  
...  
Keyword(s):  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Rainy Season ◽  
Edaphic Factors ◽  
Gas Emissions ◽  
Mangrove Soils

Mulching Affects Soil Properties and Greenhouse Gas Emissions Under Long‐Term No‐Till and Plough‐Till Systems in Alfisol of Central Ohio

2016 ◽  
Vol 28 (2) ◽  
pp. 673-681 ◽  
Author(s):  
Ahmad Nawaz ◽  
Rattan Lal ◽  
Raj Kumar Shrestha ◽  
Muhammad Farooq
Keyword(s):  
Soil Properties ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Gas Emissions ◽  
No Till
Sign in / Sign up

Export Citation Format

Share Document