Sentences with phrase «rice agriculture»
"Rice agriculture" refers to the practice of growing rice crops. Full definition
I'm not so sure about methane (major sources include rice agriculture, landfills, domesticated animals and biomass burning).
realclimate.org
At a meeting of the American Geophysical Union (December 17, 2008), scientists detailed evidence in support of the controversial idea that the introduction of large - scale rice agriculture in Asia, coupled with extensive deforestation in Europe began to alter world climate by pumping significant amounts of greenhouse gases into the atmosphere over the last 1000 years.
The study provides definitive evidence «for millet agriculture developing earlier than full - fledged rice agriculture.»
Assessing risks of climate variability and climate change for Indonesian rice agriculture Rosamond L. Naylor, et al PNAS May 8, 2007 vol.
Here we use a risk assessment framework to examine the potential impact of El Nino events and natural variability on rice agriculture in 2050 under conditions of climate change, with a focus on two main rice - producing areas: Java and Bali.
However, several bottom - up studies indicate fewer emissions from tropical rice agriculture (Li et al., 2002; Yan et al., 2003; Khalil and Shearer 2006).
After accounting for the ~ 3.9 Tg attributed to rice agriculture in the current inventories, ~ 15.8 Tg of additional CH4 remain.
Today's atmosphere contains methane that is emitted naturally — from wetlands, wildfires, or ocean and land seeps — and methane emitted from human activities like fossil fuel extraction and use, rice agriculture, raising livestock, and generating landfills.
By contrast, the powerful greenhouse gas methane is barely mentioned — perhaps because its main sources, while human - related, are «natural»: rice agriculture and cattle - raising.
Of this, natural CH4 sources emitted between 190 and 220 Tg (CH4) yr — 1, and anthropogenic sources (rice agriculture, livestock, biomass burning and waste) accounted for the rest (Houweling et al., 2000; Ruddiman and Thomson, 2001).
Approximately 40 percent of methane is emitted into the atmosphere by natural sources (e.g., wetlands and termites), and about 60 percent comes from human activities like cattle breeding, rice agriculture, fossil fuel exploitation, landfills and biomass burning.