Impacts of natural factors and farming practices on greenhouse gas emissions in the North China Plain: A meta-analysis.

ABSTRACT: Requirements for mitigation of the continued increase in greenhouse gas (GHG) emissions are much needed for the North China Plain (NCP). We conducted a meta-analysis of 76 published studies of 24 sites in the NCP to examine the effects of natural conditions and farming practices on GHG emissions in that region. We found that N₂O was the main component of the area-scaled total GHG balance, and the CH ₄ contribution was <5%. Precipitation, temperature, soil pH, and texture had no significant impacts on annual GHG emissions, because of limited variation of these factors in the NCP. The N₂O emissions increased exponentially with mineral fertilizer N application rate, with y = 0.2389e^0.0058x for wheat season and y = 

SUBMITTER: Xu C 

PROVIDER: S-EPMC5587491 | biostudies-literature | 2017 Sep

REPOSITORIES: biostudies-literature