Knowledge Resource Center for Ecological Environment in Arid Area
| 项目编号 | 51309192 |
| 设施菜地加气灌溉对土壤二氧化碳和氧化亚氮排放的调控效应 | |
| 侯会静 | |
| 主持机构 | 西北农林科技大学 |
| 开始日期 | 2014 |
| 结束日期 | 2016 |
| 资助经费 | 250000(CNY) |
| 项目类别 | 青年科学基金项目 |
| 资助机构 | CN-NSFC（国家自然科学基金） |
| 语种 | 中文 |
| 国家 | 中国 |
| 英文简介 | Aerated irrigation is a new technology of water-saving irrigation, which has been widely used in facility agriculture. Under aerated irrigation, crop yields and water use efficiency are increased by improved soil aeration status. Also, the fruit quality is improved. The change of soil aeration status induced by aerated irrigation is bound to affect microbial activity, organic matter decomposition and nitrification-denitrification in the crop root zone soil, thus affects the production and emissions of carbon dioxide and nitrous oxide. Carbon dioxide and nitrous oxide emissions from the soil under aerated irrigation are awaiting indepth research. In this study, carbon dioxide and nitrous oxide emissions from a facility vegetable soil will be researched from the perspective of the joint regulation of water and air under aerated irrigation. Seasonal variations of carbon dioxide and nitrous oxide emissions from the facility vegetable soil under aerated irrigation will be analyzed. The effects of different frequency of the areated on carbon dioxide and nitrous oxide emissions from the facility vegetable soil will be discussed. The effects of relative soil and meteorological factors on carbon dioxide and nitrous oxide emissions will be quantitative analyzed. Based on the quantitative analysis above, the main influence factors of carbon dioxide and nitrous oxide emissions will be determined and discussed. The integrative greenhouse effect of carbon dioxide and nitrous oxide emissions from the facility vegetable soil under aerated irrigation will be evaluated. A model will be builded for the dynamic simulation of carbon dioxide and nitrous oxide emissions from the facility vegetable soil under aerated irrigation. The results of this study will have important meaning. It can be used to evaluate the ecological effects of aerated irrigation technology and mitigate emissions of greenhouse gases. |
| 中文关键词 | 加气灌溉 ; 土壤 ; 二氧化碳 ; 氧化亚氮 ; 温室效应 |
| 来源机构 | 西北农林科技大学 |
| 资源类型 | 项目 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/346612 |
| 推荐引用方式 GB/T 7714 | 侯会静.设施菜地加气灌溉对土壤二氧化碳和氧化亚氮排放的调控效应.2014. |
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