基于模糊隶属函数的吉林市烤烟种植气候适宜性区划

为合理利用吉林市气候资源，提升烤烟生产效益，开展烤烟栽培气候适宜性定量评估，以制定烤烟种植优化调整方案。采用烤烟产量、气象和海拔高程等数据，基于气象条件对当地烤烟的影响，以及烤烟栽培气候资源供求关系，确定影响烤烟栽培的气象要素。采取模糊数学方法建立吉林市烤烟适宜度隶属函数及综合评价模型。考虑到海拔高度和经纬度与气象条件的关系，建立吉林山区诸气象要素的地理分布模式，在GIS平台下实现吉林市烤烟种植适宜度的精细化气候区划。结果表明：吉林市大部分地方都比较适宜烤烟栽培，但气候适宜度存在明显的区域差异，可划分为最适宜区、适宜区、次适宜区、不适宜区4类。研究区域东部和南部海拔500-800 m左右的中山地带适合烤烟栽培，但其中海拔800 m以上的高山地带气温过低，不适宜烤烟栽培；西部半山-平原区适宜度并不高。蛟河市适宜烤烟种植面积最大，其次是桦甸市，磐石市和舒兰市也较适宜烤烟栽培。烤烟精细区划结果与当地多年烤烟种植区域有一致性，但仍有较大的优化调整空间和增产增收潜力。

Climatic suitability regionalization of flue-cured tobacco cultivation in Jilin City based on fuzzy membership function

To utilize reasonably climatic resources in Jilin city and improve tobacco productivity,a quantitative assessment of climatic suitability was carried out for formulating the optimized adjustment scheme for flue-cured tobacco cultivation(TC).Based on the data of tobacco yield,meteorological condition,elevation,climatic effects on tobacco,supply and demand relationships of climate resources,climatic factors affecting TC were determined.Fuzzy mathematic method was used to build the membership function of TC suitability and comprehensive evaluation model.Considering the relationships between altitude,longitude,and weather conditions,geographical distribution patterns of climatic factors were set up,and then,refined climatic regionalization for TC in Jilin city was achieved based on the GIS platform.The results show that most regions in Jilin city are suitable for TC,but there are regional differences in climatic suitability which can be divided into four types including the most suitable,the suitable,the sub-suitable,and the unsuitable areas.The east and south regions with the altitude ranged from 500 to 800 m are suitable for TC.However,the regions with an altitude over 800 m and low temperature are unsuitable for TC.Mountain and plain area in the west Jilin city are low suitability areas for TC.Jiaohe city has the largest area suitable for TC,followed by Huadian,and Panshi and Shulan cities are also suitable for TC.The result of flue-cured tobacco regionalization is consistent with the local planting area,but there still are a large space for optimization and adjustment and the potential for increasing yield and income for tobacco production in Jilin city.