| 中南半岛春季植被覆盖变化及其与ENSO的联系 |
| |
| 引用本文： | 陈海山,钱满亿,华文剑.中南半岛春季植被覆盖变化及其与ENSO的联系[J].大气科学学报,2020,43(6):1065-1075. |
| |
| 作者姓名： | 陈海山 钱满亿 华文剑 |
| |
| 作者单位： | 南京信息工程大学气象灾害教育部重点实验室/气候与环境变化国际合作联合实验室/气象灾害预报预警与评估协同创新中心,江苏南京210044;南京信息工程大学大气科学学院,江苏南京210044;南京信息工程大学大气科学学院,江苏南京210044 |
| |
| 基金项目： | 国家自然科学基金国际（地区）合作与交流项目（41861144013） |
| |
| 摘 要： | 利用归一化植被指数NDVI（Normalized Difference Vegetation Index）、气候资料以及环流场数据，探讨了中南半岛地区植被覆盖变化特征及其与ENSO（El Niño-Southern Oscillation）的联系。研究表明，降水是影响春季植被生长的主要因子，与NDVI呈显著的正相关关系；而温度、辐射与NDVI呈负相关关系。进一步分析表明，当前期冬季赤道中东太平洋海温异常偏暖（发生厄尔尼诺事件）时，中南半岛附近海平面气压偏高、850 hPa风场辐散，上升运动偏弱，不利于云和降水形成，而有利于太阳辐射增加和温度升高，降水减小和温度升高均抑制春季中南半岛植被生长；反之，当前期冬季发生拉尼娜事件时，有利于中南半岛植被生长。
|
| 关 键 词： | 中南半岛 植被覆盖变化 春季 ENSO |
| 收稿时间： | 2020/10/14 0:00:00 |
| 修稿时间： | 2020/11/8 0:00:00 |
Vegetation cover change in the Indo-China Peninsula in spring and its relation to ENSO |
| |
| CHEN Haishan,QIAN Manyi,HUA Wenjian.Vegetation cover change in the Indo-China Peninsula in spring and its relation to ENSO[J].大气科学学报,2020,43(6):1065-1075. |
| |
| Authors: | CHEN Haishan QIAN Manyi HUA Wenjian |
| |
| Institution: | Key Laboratory of Meteorological Disaster, Ministry of Education(KLME)/Joint International Research Laboratory of Climate and Environment Change(ILCEC)/Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters(CIC-FEMD), Nanjing University of Information Science and Technology, Nanjing 210044, China;School of Atmospheric Sciences, Nanjing University of Information Science and Technology, Nanjing 210044, China |
| |
| Abstract: | This paper investigates the characteristics of vegetation cover change in the Indo-China Peninsula and its relationship with ENSO(El Niño-Southern Oscillation) using the NDVI(Normalized Difference Vegetation Index),climate data and circulation field data.Results show that precipitation is the main factor of vegetation growth in spring and has a significant positive correlation with NDVI,while temperature and radiation have negative correlations with NDVI.Further analysis reveals that when sea surface temperature in the equatorial central and eastern Pacific in the preceding winter is warmer(El Niño event occurs),the sea level pressure is higher and the 850 hPa wind field is divergent near the Indo-China Peninsula,where the upward movement is weaker,which is not conducive to the formation of cloudiness and precipitation,but conducive to the increase of solar radiation and temperature.The reduced precipitation and higher temperature both inhibit the growth of vegetation in the Indo-China Peninsula in spring.On the contrary,La Niña event in the preceding winter is favorable for the vegetation growth in the Indo-China Peninsula. |
| |
| Keywords: | Indo-China Peninsula|vegetation cover change|spring|ENSO |
| 本文献已被 万方数据 等数据库收录！ |
| 点击此处可从《大气科学学报》浏览原始摘要信息 |
| 点击此处可从《大气科学学报》下载免费的PDF全文 |
|
