Special Issue "C and N Cycling and Greenhouse Gas Emissions in Agroecosystem"
A special issue of Agriculture (ISSN 2077-0472).
Deadline for manuscript submissions: closed (28 February 2017).
Prof. Dr. Ryusuke Hatano
Graduate School of Agriculture, Hokkaido University, Sapporo, Japan
Interests: soil science; soil processes; soil qualities; soil degradation; biogeochemistry; greenhouse gas emissions; CO2; CH4; N2O; global warming; nitrogen cycling; nitrate leaching; water pollution; carbon cycling; soil respiration; organic matter decomposition; microbial biomass; soil carbon sequestration; land use change; climate change; watershed; agriculture management practices
The agriculture sector is an important source of greenhouse gas (CO2, CH4 and N2O) emissions. The IPCC reported that global anthropogenic greenhouse gas emissions in 2010 increased to 49 Gt CO2 yr-1; in which CO2 emission from agriculture, forestry, and other land uses accounts for 11%, and CH4 and N2O emissions from agriculture account for 8% and 4 %, respectively. These emissions are caused by the agricultural management practices including land use change, tillage, harvest, slash and burn, application of chemical fertilizer and manure, irrigation and drainage, grazing, and animal husbandry, which influence C and N cycling in agroecosystems. However, some agricultural management practices can mitigate environmental impact, for example, manure and residue applications in upland fields can increase soil C sequestration, intermittent irrigation in paddy fields can reduce CH4 emission, and increasing N use efficiency can decrease N2O emission. An agroecosystem is an ecosystem under agricultural management, but also connected to other ecosystems, including natural ecosystems. Therefore, comparative study between agroecosystems and natural ecosystems, or synthetic study in agricultural watersheds are crucial to understand the magnitude of the impact from agricultural management practices. Studies on the relationship between microbial activities (organic matter decomposition, nitrification and denitrification, and so on) and climate factors (temperature, precipitation, humidity, and so on) and soil environmental factors (soil temperature, soil moisture, groundwater level, soil pH, soil fertility, and so on) are also important to parameterizations for simulation models.
Prof. Dr. Ryusuke Hatano
Manuscript Submission Information
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- C and N cycling in agroecosystem
- CO2, CH4 and N2O
- greenhouse gases emission
- nitrification and denitrification
- organic matter decomposition
- soil C sequestration