渝东地区烤烟气候适宜度及其变化特征研究  

Climatic Suitability of Flue-Cured Tobacco and Its Changes in Eastern Chongqing

作　　者：何永坤 张建平 

机构地区：[1]重庆市气象科学研究所,重庆401147

出　　处：《西南大学学报（自然科学版）》2014年第9期140-146,共7页Journal of Southwest University(Natural Science Edition)

基　　金："十二五"国家科技支撑计划课题(2011BAD32B01);中国气象局气候变化专项(CCSF201220);重庆市工程技术研究中心建设项目(重庆市农业气象与卫星遥感技术研究中心;CSTC2011PT-GC80023)

摘　　要：以渝东地区13个烤烟主产区的气候资料,运用模糊数学隶属度函数模型对该地区烤烟气候适宜度时空变化特征进行了分析,结果表明：1）渝东烟区全生育期气候适宜度在0.50-0.63之间,其中温度隶属度最高,波动性较小,日照隶隶属度较大,波动性大,降水隶属度最小;2）各生育期气候因子隶属度中,旺长期温度隶属度最大,伸根期次之,成熟期最小;旺长期降水隶属度最大,成熟期次之,伸根期最小;伸根期日照隶属度较大,成熟期次之,旺长期最小;3）气候适宜度、日照隶属度均呈弱的增加趋势,而降水、温度隶属度呈弱下降趋势.Based on the climatic data from 13 main producing areas of flue-cured tobacco in eastern Chongqing ,the study analyzed the spatial and temporal variation of climatic suitability of flue-cured tobacco using the membership functions of fuzzy mathematics .The grade of climatic suitability during the growth period of tobacco ranged between 0.50 and 0.63 .The temperature membership was the highest and varied but slightly .The sunshine membership was the second highest and varied significantly .The precipitation membership was the lowest among the three climatic elements .In various growing periods of the plants ,the temperature membership was the highest in the vigorously growing period ,followed by the root extending stage and was the lowest in the maturity period ;the precipitation membership was the highest in the vigorously growing period ,followed by the maturity period and was the lowest in the root extending stage ;and the sunshine membership was the highest in the root extending stage ,followed by the maturity period and was the lowest in the vigorously growing stage .The climatic suitability and sunshine membership showed a weak upward trend while the precipitation and temperature membership showed a weak downward trend .

关 键 词：渝东地区 隶属度函数 烤烟 

分 类 号：S572[农业科学—烟草工业]