基于GIS技术的商洛烟区烤烟用地适宜性评价研究

基于GIS技术与数学模型对商洛烟区烤烟用地的适宜性进行了评价。结果表明:高度适宜烤烟种植的农田占到了全部烟田的32.61%;烤烟主产区耕地土壤有机质平均含量为9.486 9 g/kg;土壤速效氮和有效磷含量分别为25~30和10~25 mg/kg;而土壤速效钾、土壤有效铁、有效锰、有效铜、有效锌、硼、氯、硒含量分别为99~233,15~25,40~70,1.2~1.8,0.5~2.0,0.8~1.8,5~10,0.07~0.20 mg/kg。该研究结果可为该烟区合理优化布局和提高优质烟叶生产能力提供科学的指导。

GIS-based suitability evaluation of land resources for tobacco production of Shangluo flue-cured tobacco region

In order to provide reasonable planning and layout, an integrated evaluation of the land resource in Shangluo flue-cured tobacco region was performed for suitability of the nutrition of tobacco plant. The results show that highly suitable land is occupied by 32.61%. The soil organic carbon is 9.486 9 g/kg on average in main flue-cured region. Soil available nitrogen and soil available phosphorus is betweens 25~30 and 10~25 mg/kg respectively; However, soil available potassium, soil effective iron, manganese, copper, zinc, boron, chlorine and selenium are 99~233, 15~25, 40~70, 1.2~1.8, 0.5~2.0, 0.8~1.8, 5~10, 0.07~0.20 mg/kg respectively. This study could provide the tobacco zone more reasonable layout optimization and provide scientific guidance to improve the quality of tobacco leaf production capacity.