干旱区生态环境知识资源中心(Arid): Carbon Footprint of Crop Cultivation Process Under Semiarid Conditions

Arid

DOI	10.1007/s40003-018-0315-9
	Carbon Footprint of Crop Cultivation Process Under Semiarid Conditions
	Devakumar, A. S.; Pardis, R.; Manjunath, V.
通讯作者	Devakumar, AS
来源期刊	AGRICULTURAL RESEARCH
ISSN	2249-720X
EISSN	2249-7218
出版年	2018
卷号	7 期号:2 页码:167-175
英文摘要	Agriculture is one of the major sectors that get affected as well as cause climate change. Arid and semiarid regions of the world are expected to become more vulnerable to climate change. Thus, in order to develop appropriate mitigation or adaptive strategies, carbon footprint analysis of agriculture sector becomes crucial. Emissions resulting from the cultivation process depend on the inputs used and the environmental conditions. The present study is an effort to analyze the carbon footprint of agriculture crops cultivated in the state of Karnataka with 80% land under rainfed agriculture under semiarid tropical conditions. About 5.37 terra grams of carbon equivalent (TgCE) was found to occur annually. Cereals contributed 5.04 TgCE/year of which 78% comes from rice, as it emits methane in addition to CO2 and NO2. Possible approaches to reduce methane emission are discussed including the possibility of replacing the area under rice with other crops without affecting the dietary as well as peoples preferences. Inorganic nitrogen fertilizer use in the cultivation process accounts for 72% of the total emissions. Combining pulse crops effectively in conventional practices of crop rotation and mixed cropping systems can help in reducing emissions. Manual agriculture followed due to small land holdings facilitates low energy use (8%) under rainfed agriculture, resulting in low carbon input. Irrigated agriculture recorded 4.19 TgCE/year which is almost 3.5 times more than the rainfed agriculture practice. Among the two cropping seasons, Kharif season which is the major cropping season recorded 3.85 TgCE/year against 1.52 TgCE/year during Rabi season. Most tropical regions with fragmented land, low carbon emission as well as with the low productivity need to be treated differently.
英文关键词	Carbon footprint GHG emission Rainfed agriculture Climate mitigation
类型	Article
语种	英语
收录类别	ESCI
WOS记录号	WOS:000432548800010
WOS关键词	METHANE EMISSIONS ; CLIMATE-CHANGE ; RICE FIELDS ; TRANSFORMATION ; STRATEGIES ; MANAGEMENT ; SYSTEMS
WOS类目	Agronomy
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/332783
作者单位	[Devakumar, A. S.; Pardis, R.] Univ Agr Sci, Dept Forestry & Environm Sci, GKVK, Bangalore 560065, Karnataka, India; [Manjunath, V.] Univ Agr Sci, Dept Agr Stat, GKVK, Bangalore 560065, Karnataka, India
推荐引用方式 GB/T 7714	Devakumar, A. S.,Pardis, R.,Manjunath, V.. Carbon Footprint of Crop Cultivation Process Under Semiarid Conditions[J],2018,7(2):167-175.
APA	Devakumar, A. S.,Pardis, R.,&Manjunath, V..(2018).Carbon Footprint of Crop Cultivation Process Under Semiarid Conditions.AGRICULTURAL RESEARCH,7(2),167-175.
MLA	Devakumar, A. S.,et al."Carbon Footprint of Crop Cultivation Process Under Semiarid Conditions".AGRICULTURAL RESEARCH 7.2(2018):167-175.