| 我国典型省份小麦和玉米农田化学氮肥施用与生产运输过程的温室气体排放量估算 |
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| 引用本文： | 柴如山,王擎运,叶新新,马超,屠人凤,郜红建.我国典型省份小麦和玉米农田化学氮肥施用与生产运输过程的温室气体排放量估算[J].农业环境科学学报,2019,38(3):707-713. |
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| 作者姓名： | 柴如山 王擎运 叶新新 马超 屠人凤 郜红建 |
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| 作者单位： | 农田生态保育与污染防控安徽省重点实验室, 安徽农业大学资源与环境学院, 合肥 230036,农田生态保育与污染防控安徽省重点实验室, 安徽农业大学资源与环境学院, 合肥 230036;中国农业科学院农业资源与农业区划研究所/耕地培育技术国家工程实验室, 北京 100081,农田生态保育与污染防控安徽省重点实验室, 安徽农业大学资源与环境学院, 合肥 230036,农田生态保育与污染防控安徽省重点实验室, 安徽农业大学资源与环境学院, 合肥 230036,农田生态保育与污染防控安徽省重点实验室, 安徽农业大学资源与环境学院, 合肥 230036,农田生态保育与污染防控安徽省重点实验室, 安徽农业大学资源与环境学院, 合肥 230036 |
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| 基金项目： | 国家重点研发计划项目（2016YFD0300901，2016YFD0300801，2017YFD0301302）；耕地培育技术国家工程实验室开放基金项目（201705） |
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| 摘 要： | 基于相关统计数据,通过文献调研方法,估算了我国河南、河北和山东3个典型省份在小麦和玉米上消费的化学氮肥产生的温室气体排放量,包括化学氮肥施用产生的土壤N_2O直接排放、通过挥发沉降和淋溶径流途径损失的氮素导致的N_2O间接排放以及不同种类化学氮肥在生产和运输过程中的温室气体排放。结果表明:河南、河北和山东3个典型省份在小麦上消费的化学氮肥产生的温室气体排放量分别为1536万、847万、1153万t CO_2–eq·a–1,单位播种面积温室气体排放量分别为2.85、3.61、3.09 t CO_2–eq·hm–2·a–1,单位产量温室气体排放量分别为0.46、0.60、0.51 t CO_2–eq·t~(–1)·a~(–1);相应省份在玉米上消费的化学氮肥产生的温室气体排放量分别为717万、720万、912万t CO_2–eq·a–1,单位播种面积温室气体排放量分别为2.19、2.27、2.92 t CO_2–eq·hm–2·a–1,单位产量温室气体排放量分别为0.40、0.43、0.46 t CO_2–eq·t~(–1)·a~(–1)。研究表明,化学氮肥消费带来的温室气体排放主要来自于化学氮肥在生产过程中的温室气体排放以及化学氮肥施用导致的土壤N_2O直接排放这两部分。
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| 关 键 词： | 小麦 玉米 化学氮肥 N2O 温室气体排放 |
| 收稿时间： | 2018/5/11 0:00:00 |
Estimation of greenhouse gas emissions from production, transportation and fertilization of synthetic nitrogen for wheat and maize in typical provinces of China |
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| CHAI Ru-shan,WANG Qing-yun,YE Xin-xin,MA Chao,TU Ren-feng and GAO Hong-jian.Estimation of greenhouse gas emissions from production, transportation and fertilization of synthetic nitrogen for wheat and maize in typical provinces of China[J].Journal of Agro-Environment Science( J. Agro-Environ. Sci.),2019,38(3):707-713. |
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| Authors: | CHAI Ru-shan WANG Qing-yun YE Xin-xin MA Chao TU Ren-feng and GAO Hong-jian |
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| Institution: | Anhui Province Key Lab of Farmland Ecological Conservation and Pollution Prevention, School of Resources and Environment, Anhui Agricultural University, Hefei 230036, China,Anhui Province Key Lab of Farmland Ecological Conservation and Pollution Prevention, School of Resources and Environment, Anhui Agricultural University, Hefei 230036, China;National Engineering Laboratory for Improving Quality of Arable Land, Institute of Agricultural Resources and Reginal Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China,Anhui Province Key Lab of Farmland Ecological Conservation and Pollution Prevention, School of Resources and Environment, Anhui Agricultural University, Hefei 230036, China,Anhui Province Key Lab of Farmland Ecological Conservation and Pollution Prevention, School of Resources and Environment, Anhui Agricultural University, Hefei 230036, China,Anhui Province Key Lab of Farmland Ecological Conservation and Pollution Prevention, School of Resources and Environment, Anhui Agricultural University, Hefei 230036, China and Anhui Province Key Lab of Farmland Ecological Conservation and Pollution Prevention, School of Resources and Environment, Anhui Agricultural University, Hefei 230036, China |
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| Abstract: | In this research, the amount of greenhouse gas emissions induced by consumption of synthetic N for wheat and maize in typical provinces (Henan, Hebei, and Shandong) of China was assessed based on the analysis of statistical data using a data mining method, and included direct N2O emissions from soil, indirect N2O emissions through volatilization of NH3 and N leaching and runoff, and greenhouse gas emissions from production and transportation of different kinds of synthetic N fertilizers. In wheat production, the total greenhouse gas emissions from synthetic N fertilization were 15.36 million, 8.47 million, and 11.53 million tons CO2 equivalent per year for Henan, Hebei, and Shandong Provinces, respectively, or 2.85, 3.61, and 3.09 tons CO2 equivalent per hectare, or 0.46, 0.60, and 0.51 tons CO2 equivalent per ton of wheat, respectively. In maize production, the total greenhouse gas emissions from synthetic N fertilization were 7.17 million, 7.20 million, and 9.12 million tons CO2 equivalent per year for Henan, Hebei, and Shandong Provinces, respectively, or 2.19, 2.27, and 2.92 tons CO2 equivalent per hectare, or 0.40, 0.43, and 0.46 tons CO2 equivalent per ton of maize, respectively. Direct N2O emissions from soil and greenhouse gas emissions from the production of synthetic N fertilizers were the main sources of greenhouse gas emissions from synthetic N fertilization. |
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| Keywords: | wheat maize synthetic N fertilizers N2O greenhouse gas emissions |
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