安徽农学通报
安徽農學通報
안휘농학통보
AUHUI AGRICULTURAL SCIENCE BULLETIN
2013年
10期
116-117
,共2页
陈思英%关文健%杨书运*%韩辉邦
陳思英%關文健%楊書運*%韓輝邦
진사영%관문건%양서운*%한휘방
NDVI%EMD%周期分析%气候因子
NDVI%EMD%週期分析%氣候因子
NDVI%EMD%주기분석%기후인자
NDVI%EMD%Periodicity analysis%Climatic factor
利用1982年1月到2006年12月的 AVHRR(Advanced Very High Resolution Radiometer) GIMMS(Global Inventory Monitoring and Modeling Studies) NDVI数据,应用经验模态分解(EMD)方法,对淮河流域NDVI数据进行了周期分析.结果表明:淮河流域安徽段各站点SINDVI基本存在2~3a、9~10a、12~13a及15~16a的变化周期,其主要影响因子可能为气温和降水,而气候因子的周期性变化主要受海-气相互作用和太阳黑子活动的影响,进而影响植被的周期变化.
利用1982年1月到2006年12月的 AVHRR(Advanced Very High Resolution Radiometer) GIMMS(Global Inventory Monitoring and Modeling Studies) NDVI數據,應用經驗模態分解(EMD)方法,對淮河流域NDVI數據進行瞭週期分析.結果錶明:淮河流域安徽段各站點SINDVI基本存在2~3a、9~10a、12~13a及15~16a的變化週期,其主要影響因子可能為氣溫和降水,而氣候因子的週期性變化主要受海-氣相互作用和太暘黑子活動的影響,進而影響植被的週期變化.
이용1982년1월도2006년12월적 AVHRR(Advanced Very High Resolution Radiometer) GIMMS(Global Inventory Monitoring and Modeling Studies) NDVI수거,응용경험모태분해(EMD)방법,대회하류역NDVI수거진행료주기분석.결과표명:회하류역안휘단각참점SINDVI기본존재2~3a、9~10a、12~13a급15~16a적변화주기,기주요영향인자가능위기온화강수,이기후인자적주기성변화주요수해-기상호작용화태양흑자활동적영향,진이영향식피적주기변화.
Based on the GIMMS NDVI data set during 1982-2006 in the Huaihe River Basin,a novel multiple time-scale analysis method,Empirical Mode Decomposition (EMD),is used to diagnose the periodicities of NDVI. The results indicate that SINDVI have the similar 2~3 year,9~10 year,12~13 year and 15~16 year period in Huaihe River Basin. The temperature and precipitation may be the significant factor affecting the vegetation in the Huaihe River Basin. The periodicity of climate factor may be concerned with the laws of motions of heaven bodies and the medium-wave cycle of macula,they are all caused by solar activity.
