宜宾烟区不同海拔对土壤主要养分分布的影响  

Effects of Different Elevations on the Distribution of Major Soil Nutrients in Yibin Tobacco Area

作　　者：赵瑜 杨懿德 鄢敏 杨建[2] 叶顶昆 胡刚 高玉珍[4] 李鹏辉 谷宇超 景延秋[1] 杨洋[2] ZHAO Yu;YANG Yi-de;YAN Min;YANG Jian;YE Ding-kun;HU Gang;GAO Yu-zhen;LI Peng-hui;GU Yu-chao;JING Yan-qiu;YANG Yang(College of Tobacco/Henan Agricultural University,Henan 450002,China;Sichuan Tobacco Company Yinbin City company,Yinbin 644000,China;China National Tobacco Corporation,Sichuan Province,Chengdu 610000,China;Technology R&D center of Gansu Tobacco Industry Co.,Ltd.,Lanzhou 730050,China)

机构地区：[1]河南农业大学烟草学院,河南郑州450000 [2]四川省烟草公司宜宾市公司,四川宜宾644000 [3]中国烟草总公司四川省公司,四川成都610000 [4]甘肃甘肃烟草工业有限责任公司技术研发中心,甘肃兰州730050

出　　处：《山东农业大学学报（自然科学版）》2022年第1期115-122,共8页Journal of Shandong Agricultural University：Natural Science Edition

摘　　要：本文分析了宜宾市主要烟区8各县(区)211份各土壤样品中碱解氮、速效钾和有机质的含量特征和分布情况,并在此基础上探究了其与海拔高度的关系。结果表明:宜宾烟区植烟田海拔多位于355~1350 m,平均海拔为(938.12±166.70)m,海拔变化较大,变幅为355.6~1499.9 m。宜宾烟区土壤碱解氮、速效钾和有机质含量的平均值分别为73.51 mg/kg、261.38 mg/kg和33.24 g/kg。海拔高度与土壤碱解氮、速效钾和有机质呈极显著正相关,具体表现为土壤碱解氮含量随着海拔的升高呈先升高后降低的趋势,在1150~1350 m达到最大值,土壤速效钾和有机质含量在海拔355~1550 m范围内随着海拔的升高呈上升趋势,但上升的趋势逐渐减缓。碱解氮、速效钾和有机质含量在四种土壤类型表现为紫色土>黄壤土>水稻土>黄棕壤土。The content and distribution of alkali-hydrolyzed nitrogen,available potassium and organic matter in 211 soil samples in 8 counties(districts)of main tobacco district of Yibin city were analyzed.The results show that the planting tobacco fields in Yibin tobacco area are mostly located at 355-1350 m above sea level,the average elevation is(938.12±166.70)m,the altitude change is large,and the variation range is 355.6~149.9 m.the average values of soil alkalized nitrogen,available potassium and organic matter content in yibin tobacco area were 73.51 mg/kg,261.38 mg/kg and 33.24 g/kg,respectively.The altitude was positively correlated with soil alkali-hydrolyzed nitrogen,available potassium and organic matter,showing that the soil alkali-hydrolyzed nitrogen content increased first and then decreased with the elevation,reaching the maximum value of 1150-1350 m.The content of alkali-hydrolyzed nitrogen,available potassium and organic matter in four soil types showed purple soil>yellow loam>paddy soil>yellow brown loam.

关 键 词：烟草 海拔 土壤养分 分布特征 

分 类 号：S572[农业科学—烟草工业] S153.6[农业科学—作物学]