Journal ArticleDOI
Gross N2O emission and gross N2O uptake in soils under temperate spruce and beech forests
Reads0
Chats0
TLDR
In this paper, the authors used 15 N 2 O pool dilution method to quantify gross and net NO 3 − emission and uptake in adjacent spruce and beech forests on a Cambisol soil in central Germany.Abstract:
Soils are not only a major source but also a potential sink of atmospheric nitrous oxide (N 2 O), a potent greenhouse gas and the most important substance causing stratospheric ozone depletion. Net N 2 O flux at the soil surface is a result of two concurrent processes: gross N 2 O emission and gross N 2 O uptake. Little is known about these processes and their controlling factors because it is only in the last five years that the 15 N 2 O pool dilution method was developed to measure these processes in the field. Here, we used this method to quantify gross N 2 O emission and gross N 2 O uptake in adjacent spruce and beech forests on a Cambisol soil in central Germany. Our results showed that the beech stand had higher soil gross and net N 2 O emissions ( P 2 O emission and gross N 2 O uptake were influenced mainly by soil NO 3 − concentration and soil extractable organic C, respectively. The strong correlation between gross N 2 O emission and net N 2 O fluxes suggests that gross N 2 O emission rather than gross N 2 O uptake drove the net N 2 O flux from the soil. Our study showed the underlying mechanisms and controls of gross N 2 O fluxes, which until now were not quantified in actual field conditions across seasons.read more
Citations
More filters
Journal ArticleDOI
Looking back to look ahead: a vision for soil denitrification research.
TL;DR: To improve understanding of soil denitrification, it is recommended broadening access to technologies for new methodologies to measure soil N2 production rates, conducting more studies in the tropics and on subsoils, performing standardized experiments on unmanipulated soils, and using more precise terminology to refer to measured process rates.
Journal ArticleDOI
Poplar Rows in Temperate Agroforestry Croplands Promote Bacteria, Fungi, and Denitrification Genes in Soils.
TL;DR: Soil microorganisms carrying denitrification genes were more abundant in the tree rows than in the crop rows and monoculture systems, suggesting a greater potential for nitrate removal through Denitrification, which may reduce nitrate leaching.
Journal ArticleDOI
Effects of soil warming and increased precipitation on greenhouse gas fluxes in spring maize seasons in the North China Plain
TL;DR: It is suggested that climate warming will lead to enhanced GHG emissions in the spring maize season in the NCP, while increased precipitation in the future may further stimulate GHG emitters in a warming world.
Journal ArticleDOI
Effects of Near Natural Forest Management on Soil Greenhouse Gas Flux in Pinus massoniana (Lamb.) and Cunninghamia lanceolata (Lamb.) Hook. Plantations
Angang Ming,Yujing Yang,Shirong Liu,Hui Wang,Yuanfa Li,Li Hua,You Nong,Daoxiong Cai,Hongyan Jia,Yi Tao,Dong-Jing Sun +10 more
TL;DR: Near natural forest management negatively affected the soil greenhouse gas emissions in P. massoniana and C. lanceolata plantations, and the potential impact of greenhouse gas flux should be considered when selecting tree species for enrichment planting.
Journal ArticleDOI
Dissolved organic carbon enhances both soil N2O production and uptake
TL;DR: In this paper, a laboratory incubation using 15N2O dilution tracing technology with and without acetylene (C2H2) was conducted to understand the responses of N2O uptake with organic carbon incorporation.
References
More filters
Climate change 2007: the physical science basis
Susan Solomon,Dahe Qin,Martin R. Manning,Melinda Marquis,Kristen Averyt,Melinda M.B. Tignor,H. L. Miller,Z. Chen +7 more
TL;DR: The first volume of the IPCC's Fourth Assessment Report as mentioned in this paper was published in 2007 and covers several topics including the extensive range of observations now available for the atmosphere and surface, changes in sea level, assesses the paleoclimatic perspective, climate change causes both natural and anthropogenic, and climate models for projections of global climate.
Climate Change 2013: The Physical Science Basis
Reinhard F. Stocker,Dahe Qin,Gian-Kasper Plattner,Melinda Tignor,S. D. Allen,J. Boschung,T Stocker,Gian-Kasper Plattner,Simon K. Allen,Alexander Nauels,Yu Xia,V. Bex,Pauline M. Midgley,Matthew Collins,Reto Knutti,Julie M. Arblaster,Jean-Louis Dufresne,Thierry Fichefet,Pierre Friedlingstein,Michael Wehner,Thomas F. Stocker,S. James Allen,P. M. Midgley,F. M. Midgley,TF Stocker,Stefan Allen,SG Allen +26 more
TL;DR: In this paper, a summary of issues to assist policymakers, a technical summary, and a list of frequently-asked questions are presented, with an emphasis on physical science issues.
Book
The R Book
TL;DR: The R Book is the first comprehensive reference manual for the R language, including practical guidance and full coverage of the graphics facilities, and introduces the advantages of the R environment, detailing its applications in a wide range of disciplines.
The R book
TL;DR: The R Book is the first comprehensive reference manual for the R language, including practical guidance and full coverage of the graphics facilities, and introduces the advantages of the R environment, detailing its applications in a wide range of disciplines.
Journal ArticleDOI
Chloroform fumigation and the release of soil nitrogen: A rapid direct extraction method to measure microbial biomass nitrogen in soil
TL;DR: In this paper, a direct extraction method for measuring soil microbial biomass nitrogen (biomass N) is described, which is based on CHC13 fumigation, followed by immediate extraction with 0.5 M K2SO4 and measurement of total N released by CHC 13 in the soil extracts.