农田投入的二氧化碳排放量——以新西兰坎特伯雷地区的小麦生产为例。
CO₂ emissions from farm inputs "case study of wheat production in Canterbury, New Zealand".
机构信息
Department of Agricultural Management and Property Studies, Lincoln University, New Zealand.
出版信息
Environ Pollut. 2012 Dec;171:126-32. doi: 10.1016/j.envpol.2012.07.032. Epub 2012 Aug 12.
This review paper concentrates on carbon dioxide emissions, discussing its agricultural sources and the possibilities for minimizing emissions from these sources in wheat production in Canterbury, New Zealand. This study was conducted over 35,300 ha of irrigated and dryland wheat fields in Canterbury. Total CO(2) emissions were 1032 kg CO(2)/ha in wheat production. Around 52% of the total CO(2) emissions were released from fertilizer use and around 20% were released from fuel used in wheat production. Nitrogen fertilizers were responsible for 48% (499 kg CO(2)/ha) of CO(2) emissions. The link between nitrogen consumption, CO(2) emissions and crop production showed that reducing the CO(2) emissions would decrease crop production and net financial benefits to farmers.
这篇综述论文集中讨论了二氧化碳排放问题，探讨了其在农业领域的排放源，以及在新西兰坎特伯雷地区小麦生产中减少这些排放源的可能性。本研究在坎特伯雷地区的 35300 公顷灌溉和旱地小麦田中进行。小麦生产过程中的总二氧化碳排放量为 1032 千克/公顷。约 52%的二氧化碳排放来自化肥使用，约 20%来自小麦生产中使用的燃料。氮肥导致了 48%（499 千克/公顷）的二氧化碳排放。氮消耗、二氧化碳排放和作物产量之间的关系表明，减少二氧化碳排放将降低作物产量和农民的净经济效益。
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