Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2017JD027784 |
Simulating the Impacts of Irrigation and Dynamic Vegetation Over the North China Plain on Regional Climate | |
Wu, Liyang1; Feng, Jinming2; Miao, Wenhui1 | |
2018-08-16 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2018 |
卷号 | 123期号:15页码:8017-8034 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | A dynamic irrigation scheme that considers groundwater processes and dynamic vegetation was constructed and incorporated into Noah land surface model with multiparameterization options coupled with the weather research and forecasting model. Multiple experiments (with and without irrigation) were designed to simulate the impacts of irrigation over the North China Plain (NCP) on regional climate. The simulated irrigation rate of the NCP was close to observations, and its interannual variations were clearly associated with dry or wet years. The groundwater table affected by irrigation varied in the NCP irrigated areas during simulation period but declined overall. The irrigation-induced increases in green vegetation fraction led to increases in transpiration, indicating that the influences of irrigation on latent heat flux should contain the changes of transpiration besides changes of soil evaporation. The modified surface energy budget caused by irrigation affected surface air temperature (SAT), and the spring and summer SAT in the areas with larger irrigation rate decreased significantly by 0.8-1.6 and 1.2-2.6 degrees C, respectively. The experiment that considered irrigation showed obvious improvement in simulating several key variables (gross primary productivity, green vegetation fraction, sensible heat flux, and summer SAT). In the NCP, irrigation increased water vapor and caused cooling in boundary layer, which had opposing influences on precipitation, resulting in heterogeneous changes in summer precipitation. The changes of precipitation in nonirrigated areas were related to the influences of irrigation on wind fields. The contribution of direct effects of irrigation to blended influences of irrigation and dynamic vegetation on spring (summer) SAT was 70.9% (63.8%). Key Points |
英文关键词 | irrigation groundwater dynamic vegetation regional climate WRF Noah-MP |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000443566900013 |
WOS关键词 | ANTHROPOGENIC GROUNDWATER EXPLOITATION ; HAIHE RIVER-BASIN ; SURFACE CLIMATE ; UNITED-STATES ; GREAT-PLAINS ; LAND-USE ; MODEL ; PRECIPITATION ; TEMPERATURE ; CIRCULATION |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/34361 |
专题 | 气候变化 |
作者单位 | 1.Lanzhou Univ, Coll Atmospher Sci, Lanzhou, Gansu, Peoples R China; 2.Chinese Acad Sci, Inst Atmospher Phys, CAS Key Lab Reg Climate Environm Temperate East A, Beijing, Peoples R China |
推荐引用方式 GB/T 7714 | Wu, Liyang,Feng, Jinming,Miao, Wenhui. Simulating the Impacts of Irrigation and Dynamic Vegetation Over the North China Plain on Regional Climate[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2018,123(15):8017-8034. |
APA | Wu, Liyang,Feng, Jinming,&Miao, Wenhui.(2018).Simulating the Impacts of Irrigation and Dynamic Vegetation Over the North China Plain on Regional Climate.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,123(15),8017-8034. |
MLA | Wu, Liyang,et al."Simulating the Impacts of Irrigation and Dynamic Vegetation Over the North China Plain on Regional Climate".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 123.15(2018):8017-8034. |
条目包含的文件 | 条目无相关文件。 |
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。
修改评论