Ecological Suitability Evaluation of Nanping Tobacco Planting Areas

In order to define the best planting regions of flue-cured tobacco in Nanping, the ecological suitability evaluation was studied by using 15 factors of climates and soils, based on the analysis of fuzzy mathematics and correlation coefficient. The results indicated that temperature and rainfall of fast growing period, temperature of maturing stage, soil available nitrogen, and soil Olsen-P were suitable for tobacco growth, but precipitation of seedling and maturity, available potassium, and available boron were limiting factors. The tobacco growth region in Nanping were divided into three classes, the first includes Jianou, Yanping and Shunchang, and the second includes Zhenghe, Pucheng, Songxi and Jianyang, while in the third includes Guangze, Wuyishan and Shaowu. In Nanping, ecological suitability for flue-cured declined from southeast to northwest.