作者: Kamaljit Banger , Hanqin Tian , Bowen Zhang , Chaoqun Lu , Wei Ren
DOI: 10.1016/J.ATMOSENV.2015.06.008
关键词: Paddy field 、 Biomass (ecology) 、 Environmental science 、 Carbon dioxide in Earth's atmosphere 、 Wetland 、 Climatology 、 Land use, land-use change and forestry 、 Terrestrial ecosystem 、 Pollution 、 Atmospheric sciences 、 Climate change
摘要: Abstract It is highly uncertain on how human and natural environmental factors have altered methane (CH 4 ) emissions from terrestrial ecosystems in India. Using a process-based, Dynamic Land Ecosystem Model (DLEM) driven by climate, land cover use change (LCLUC), atmospheric nitrogen deposition (NDEP), carbon dioxide (CO 2 concentration, tropospheric ozone (O 3 pollution, we examined CH flux India during 1901–2010. The DLEM simulations shown that total over the country ranged 2.9 Tg C year −1 to 6.5 Tg C with significant inter-annual variations climate Contemporary primarily occurred rice fields (3.9 ± 0.9 Tg C while wetlands contributed 2.1 ± 0.6 Tg C 2000s. During 1901–2010, emission biosphere has increased ∼2.1 Tg C . LCLUC 2.3 Tg C due increase rice-based cropping systems as well irrigation expansion study period. Elevated CO concentration stimulated plant biomass production both 0.7 Tg C On contrary, decreased net ∼1.2 Tg C negative effects of extreme high temperature occurrences drought events growth. Our suggests elevated significantly