Evaluation of the DNDC Model to Estimate Soil Parameters, Crop Yield and Nitrous Oxide Emissions for Alternative Long-Term Multi-Cropping Systems in the North China Plain
文献类型：期刊论文
| 作者 | Abdalla, Mohamed; Song, Xiaotong ; Ju, Xiaotang; Smith, Pete
|
| 刊名 | AGRONOMY-BASEL
 |
| 出版日期 | 2022-01 |
| 卷号 | 12期号:1页码:109 |
| 关键词 | GREENHOUSE-GAS EMISSIONS NO-TILL CANOLA N2O EMISSIONS CARBON SEQUESTRATION CLIMATE-CHANGE MANAGEMENT WHEAT MOISTURE TEMPERATURE ROTATION |
| 英文摘要 | Optimizing crop rotations is one of the proposed sustainable management strategies for increasing carbon sequestration. The main aim of this study was to evaluate the DeNitrification-DeComposition (DNDC) model for estimating soil parameters (temperature, moisture and exchangeable NO3- and NH4+), crop yield and nitrous oxide (N2O) emissions for long-term multi-cropping systems in Hebei, China. The model was validated using five years of data of soil parameters, crop yields and N2O emissions. The DNDC model effectively simulated daily soil temperature, cumulative soil nitrogen and crop yields of all crops. It predicted the trends of observed daily N2O emissions and their cumulative values well but overestimated the magnitude of some peaks. However, the model underestimated daily water filled pore space, especially in dry seasons, and had difficulties in correctly estimating daily exchangeable NO3- and NH4+. Both observed and simulated cumulative N2O results showed that optimized and alternative cropping systems used less nitrogen fertiliser, increased grain yield and decreased N2O emissions compared to the conventional cropping system. Our study shows that although the DNDC model (v. 9.5) is not perfect in estimating daily N2O emissions for these long-term multi-cropping systems, it could still be an effective tool for predicting cumulative emissions. |
| 源URL | [https://ir.rcees.ac.cn/handle/311016/47252]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 通讯作者 | Abdalla, Mohamed |
| 作者单位 | 1.Univ Aberdeen, Sch Biol Sci, Inst Biol & Environm Sci, 23 St Machar Dr, Aberdeen AB24 3UU, Scotland 2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Beijing 100085, Peoples R China 3.Hainan Univ, Coll Trop Crops, Haikou 570228, Peoples R China 4.China Agr Univ, Coll Resources & Environm Sci, Beijing 100193, Peoples R China |
| 推荐引用方式 GB/T 7714 | Abdalla, Mohamed,Song, Xiaotong,Ju, Xiaotang,et al. Evaluation of the DNDC Model to Estimate Soil Parameters, Crop Yield and Nitrous Oxide Emissions for Alternative Long-Term Multi-Cropping Systems in the North China Plain[J]. AGRONOMY-BASEL,2022,12(1):109. |
| APA | Abdalla, Mohamed,Song, Xiaotong,Ju, Xiaotang,&Smith, Pete.(2022).Evaluation of the DNDC Model to Estimate Soil Parameters, Crop Yield and Nitrous Oxide Emissions for Alternative Long-Term Multi-Cropping Systems in the North China Plain.AGRONOMY-BASEL,12(1),109. |
| MLA | Abdalla, Mohamed,et al."Evaluation of the DNDC Model to Estimate Soil Parameters, Crop Yield and Nitrous Oxide Emissions for Alternative Long-Term Multi-Cropping Systems in the North China Plain".AGRONOMY-BASEL 12.1(2022):109. |
入库方式： OAI收割
来源：生态环境研究中心
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。