| Cite this article: | 张慧芳,赵荣钦,肖连刚,等.不同灌溉模式下农业水能消耗及碳排放研究[J].灌溉排水学报,0,():-. |
| zhang hui fang,zhao rong qin,xiao lian gang,et al.不同灌溉模式下农业水能消耗及碳排放研究[J].灌溉排水学报,0,():-. |
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| Carbon Emission from Agricultural Water and Energy Consumption under Different Irrigation Modes |
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zhang hui fang, zhao rong qin, xiao lian gang, wei yi chang, zhu rui ming, feng meng yu, luo hui li, li rui shi
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North China University of Water Resources and Electric Power
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| Abstract: |
| 【Objective】The consumption of agricultural water and energy resources is one of the main reasons for Greenhouse Effect. This paper analyzed the relationship between water energy consumption and carbon emissions from the view of "water-energy" nexus based on the data under different irrigation modes on water-saving agricultural experimental field, which located in Science and Education Park (Yuanyang) of Henan Agricultural University.【Method】The energy consumption and carbon emission intensity under different irrigation modes were calculated, and the different characteristics of water-energy consumption and carbon emission were discussed by the data of area, yield, water and energy consumption under different irrigation modes.【Result】The carbon emission caused by energy consumption during irrigation process is the main source of agricultural carbon emissions. Water-energy consumption and carbon emission intensity under traditional flood irrigation mode was much higher than other irrigation mode. The water-energy consumption and carbon emission intensity under drip irrigation mode reduced drastically. For example, the intensity of water resource consumption, energy consumption and carbon emission were reduced by 60%, 19.47% and 45% respectively compared with flood irrigation mode. The carbon emission intensity of winter wheat during the whole growing period were 18.97% higher than that of summer maize under flood irrigation mode. However, the carbon emission intensity of summer maize during irrigation were 40.08% and 43.75% higher than that of winter wheat under micro-sprinkling irrigation and drip irrigation. The yield of summer maize in drip irrigation mode was slightly higher than that under micro-sprinkling irrigation mode, which is 12.05% and 43.13% higher than that under flood irrigation and rain fed mode respectively. Cultivation methods and water-energy consumption intensity under different irrigation modes are the main reasons for differences in carbon emissions. 【Conclusion】Agricultural water-energy consumption and carbon emission intensity were quite different under different irrigation modes. Based on regional water resources and soil conditions, water-saving irrigation measures such as drip irrigation and micro-sprinkling irrigation should be adopted on a large scale to reduce energy consumption intensity in agricultural production and promote the low-carbon development of agriculture. |
| Key words: Agriculture; irrigation mode; carbon emission; water and energy consumption |
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