云南北中亚热带植烟区土壤养分的空间分布特征与肥力质量评价  

Spatial distribution characteristics and fertility quality evaluation of soil nutrients in tobacco-planting areas of the north central subtropical region of Yunnan province

作　　者：钱颖颖 马翔 夏建军 王萝萍 刘馨芮彤 张志明 闫辉[2,3] 李枝武 倪明[2,3] 王炽 QIAN Ying-ying;MA Xiang;XIA Jianjun;WANG Luo-ping;LIU Xin-rui-tong;ZHANG Zhi-ming;YAN Hui;LI Zhi-wu;NI Ming;WANG Chi(Raw Material Center of China Tobacco Yunnan Industrial Co.,Ltd.,Kunming 650201,China;Agricultural Resources&Environment Institute,Yunnan Academy of Agricultural Sciences,Kunming 650205,China;Malong Red Soil Conservation and Soil Erosion of Sloping Farmland,Observation and Research Station of Yunnan Province,Kunming 650205,China)

机构地区：[1]云南中烟工业有限责任公司原料中心,昆明650201 [2]云南省农业科学院农业环境资源研究所,昆明650205 [3]马龙红壤坡耕地保育与水土流失云南省野外科学观测研究站,昆明650205

出　　处：《西南农业学报》2024年第9期2077-2085,共9页Southwest China Journal of Agricultural Sciences

基　　金：云南中烟工业有限责任公司科技项目(2022YL01);云南省科技人才与平台计划(202205AM070002);云南省高层次科技人才及创新团队选拔专项(202305AS350013)。

摘　　要：【目的】云南北中亚热带气候区烤烟与其它作物种植区域交错重叠。明确该气候区植烟土壤的肥力空间变异特征,为该区作物养分管理和土壤肥力调控提供技术支持。【方法】以2019年云南北中亚热带2548个植烟土壤样品为研究对象,采用模糊数学模型隶属函数法对土壤肥力质量进行综合评价,运用主成分分析法确定各指标的权重和造成肥力差异的主控因子,并通过GIS空间插值确定土壤肥力质量指数的空间分布特征。【结果】云南北中亚热带植烟区土壤肥力质量指数平均值为0.65,处于较高肥力水平。土壤SOM、TN、AP和AK的变异系数分别为46.84%、48.69%、75.64%和52.34%,均属于中等变异强度,且含量较为丰富。土壤AP是影响土壤肥力差异的主要限制因子。云南北中亚热带植烟区土壤肥力质量指数呈中部高,东部或西部部分区域低的分布格局,局部地区有零星分布。【结论】云南北中亚热带植烟区土壤较适宜烟草生长。平衡施肥时应注意控制氮肥,增施有机肥和磷钾肥,有效平衡并协调土壤养分,提高植烟区土壤肥力和烟叶品质。[Objective]The flue-cured tobacco and other crops planted in the northern central subtropical climate region showed the overlap-ping planting areas.The study aimed to clarify the spatial variation characteristics of fertility in soil of tobacco planting areas and provide tech-nical support for crop nutrient management and soil fertility regulation in this climatic region.[Method]Taking 2548 soil samples from tobac-co planting area in the main climate types of northern central subtropical region in Yunnan province in 2019 as the research object,the mem-bership function method of fuzzy mathematical model was used to comprehensively evaluate the soil fertility quality.The principal component analysis method was used to determine the weight of each index and the main controlling factors causing fertility differences.GIS spatial inter-polation was used to determine the spatial distribution characteristics of soil fertility quality index.[Result]The average quality index of soil fertility in tobacco-planting areas in the main climate types of northern central subtropical region of Yunnan province was 0.65,which was at a relatively high level.The variation coefficients of SOM,TN,AP and AK in soil were 46.84%,48.69%,75.64%and 52.33%,respective-ly,all of which belonged to moderate variability intensity and their contents were relatively rich.Soil AP was the main limiting factor affecting soil fertility.The quality index of soil fertility in tobacco-planting areas in the main climate types of northern central subtropical region in Yun-nan province showed a distribution pattern of high in the central region,low in some areas of the eastern or western regions,with scattered dis-tribution in some areas.[Conclusion]The soil from tobacco planting area in the main climate types of northern central subtropical region in Yunnan province is more suitable for tobacco growth.Balancing fertilization should control nitrogen,increase the application of organic fertiliz-er and phosphorus and potassium fertilizers,effectively balance and

关 键 词：北中亚热带 植烟区土壤 土壤养分 土壤肥力 质量评价 

分 类 号：S158[农业科学—土壤学]