湘南典型濃香型煙葉產(chǎn)區(qū)烤煙大田生育期氣候特征分析

　　摘 要：為揭示與湘南典型濃香型烤煙風(fēng)格特色密切相關(guān)的生態(tài)因子，采用湘南桂陽(yáng)和江華煙區(qū)1981—2010年氣象觀測(cè)資料，以非線性多項(xiàng)式擬合回歸方法分析湘南煙區(qū)烤煙生育期氣候變化特征。研究結(jié)果表明：（1）桂陽(yáng)和江華煙區(qū)烤煙伸根期氣溫均低于15 ℃，日照時(shí)數(shù)均在4 h以下，日降水量持續(xù)上升，表現(xiàn)出少光多雨，氣溫偏低的特點(diǎn)，其中移栽期和伸根期“低溫寡照”是影響湘南典型濃香型煙葉風(fēng)格特征的主要限制因子。（2）桂陽(yáng)和江華煙區(qū)成熟期最高氣溫分別是29.27 ℃和28.35 ℃，日均光照時(shí)數(shù)6月下旬后持續(xù)增加，溫差也隨之增大，而降雨量逐漸減少，空氣相對(duì)濕度逐漸降低，表現(xiàn)出多光少雨，氣溫偏高，相對(duì)濕度低的特點(diǎn)，其中成熟期“高溫逼熟”是影響湘南典型濃香型煙葉風(fēng)格特征的主要限制因子。湘南煙區(qū)成熟期的西南季風(fēng)和地方焚風(fēng)是影響濃香型煙葉風(fēng)格特色彰顯的氣象因子之一。
　　關(guān)鍵詞：桂陽(yáng)；江華；烤煙；生育期；氣候
　　中圖分類(lèi)號(hào)：S572.04 文章編號(hào)：1007-5119（2015）04-0056-07 DOI：10.13496/j.issn.1007-5119.2015.04.010
　　Analysis of the Climate Characteristics during Field Growth Period of Tobacco in Producing Areas of the Typical Strong Flavor Type Tobacco Leaves in Xiangnan
　　CHEN Yi1， ZHOU Qingming1， YANG Hongqi1*， YANG Hongwu2， LI Hongguang3， SUN Shubin1
　�。�1.The Key Laboratories of Tobacco Technology and Health； College of Biological Science and Technology， Hunan Agricultural University， Changsha 410128， China； 2. Tobacco Agricultural Experiment Station of Central-South China， Changsha 410128， China； 3. Chenzhou Tobacco Company of Hunan Province， Chenzhou， Hunan 423000， China）
　　Abstract： In order to reveal the ecological factors that are closely related to the style features of the typical strong flavor type flue-cured tobacco in Xiangnan， we analyzed the climate change characteristics during tobacco growing period of Xiangnan tobacco cultivation areas with a nonlinear polynomial regression method using meteorological data in Guiyang and Jianghua tobacco areas from 1981 to 2010. The results showed that （1） The temperature at the rooting stage of Guiyang and Jianghua districts was below 15 ℃， daylight time was less than 4 hours， and daily precipitation kept rising， showing the climate feature of less light with more rain and low temperature. Moreover， the feature of low temperature and less light at transplanting and rooting stages was the main limiting factor that affected the style characteristic of the typical strong flavor tobacco leaves of Xiangnan. （2） The highest temperature at maturity stage of Guiyang and Jianghua area was respectively 29.27 ℃ and 28.35 ℃， and as daylight time continued increaing after late June， the temperature difference increased greatly， while the rainfall reduced， so did the relative air humidity， showing the climate feature of more light with less rain， high temperature and low humidity. Moreover， the feature of high temperature at the maturity stage contributed to the major limiting factor that affected the style characteristic of the typical strong flavor tobacco leaves of Xiangnan. Southwest monsoon and local fohn at maturity stages were also believed to be the meteorological factors that affected style characteristics reveal of the typical strong flavor tobacco leaves in Xiangnan areas.

相關(guān)熱詞搜索：烤煙 大田 煙葉 產(chǎn)區(qū) 生育