Journal article

Effects of biochar amendment on the net greenhouse gas emission and greenhouse gas intensity in a Chinese double rice cropping system

Jieyun Liu, Jianlin Shen, Yong Li, Yirong Su, Tida Ge, Davey L Jones, Jinshui Wu

EUROPEAN JOURNAL OF SOIL BIOLOGY | ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER | Published : 2014

Abstract

The impacts of biochar amendment on the net greenhouse gas emission (NGHGE) and greenhouse gas intensity (GHGI) of double rice cropping systems are not well examined. In this study, a field experiment was carried out to investigate the effects of biochar amendment on NGHGE and GHGI emissions in a subtropical double rice cropping system managed with intermittent flooding during two rice-growing seasons and drainage during a fallow season from April 2012 to April 2013. Three biochar treatments were studied, with application rates of 0, 24 and 48 t ha-1 (named CK, LC and HC, respectively). In each treatment, the fluxes of methane (CH4), nitrous oxide (N2O) and soil heterotrophic respiration (Rh..

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Grants

Awarded by National Basic Research Program of China


Awarded by National Natural Science Foundation of China


Awarded by Natural Science Foundation of Hunan province


Funding Acknowledgements

This research was financially supported by the National Basic Research Program of China (2011CB100506 & 2012CB417105), the National Natural Science Foundation of China (41090283 & 41101247) and the Natural Science Foundation of Hunan province (13JJ4114). We also thank the two anonymous reviewers for their suggestions for improving the manuscript.