临沧市双江县植烟土壤养分特征及生态位适宜度评价  

Study on Soil Characteristic and Niche Fitness of Tobacco Planting Area at Different Altitudes in Shuangjiang County of Lincang City

作　　者：彭丽丽[1] 王文学 冀浩[1] 钟庆荣[1] 孔广超 曾鹏飞 李岗 卢叶 PENG Li-li;WANG Wen-xue;JI Hao;ZHONG Qing-rong;KONG Guang-chao;ZENG Peng-fei;LI Gang;LU Ye(Guangdong Branch of China Tobacco Industrial Corporration,Guangdong Guangzhou 510000,China;Shuangjiang Affiliate of Lincang Tobacco Company,Yunnan Lincang 677300,China;Yunnan Reascend Tobacco Technology(Group)Co.,Ltd.,Yunnan Kunming 650106,China)

机构地区：[1]广东中烟工业有限责任公司,广东广州510000 [2]云南省烟草公司临沧市公司,云南临沧677300 [3]云南瑞升烟草技术(集团)有限公司,云南昆明650106

出　　处：《西南农业学报》2018年第3期544-549,共6页Southwest China Journal of Agricultural Sciences

基　　金：广东中烟工业有限责任公司项目(粤烟工15JD-QK(2012)-001)

摘　　要：【目的】以临沧市双江县植烟区域土壤p H、有机质、速效氮、速效磷、速效钾、有效锌、有效硼和水溶性氯等养分指标为基础,进行土壤养分特征及生态位适宜度评价。【方法】采用描述统计和线性回归分析探讨海拔梯度上的土壤特征和变化趋势,并运用熵权法、土壤基础生态位适宜度和聚类分析进行土壤肥力综合评价。【结果】分析显示:土壤的有机质、速效N、速效P、速效K和有效B与海拔呈显著性正相关,其平均值或中位数分别为(3.31±1.13)%、(109.58±35.47)mg/kg、(23.57±18.44)mg/kg、(135.61+69.66)mg/kg、0.45(0.30)mg/kg;有效Zn、p H值和水溶性Cl与海拔呈负相关,其中有效Zn呈显著性相关,其平均值或中位数分别为1.17(0.90)、(5.18±0.26)、10.85(9.21)mg/kg。双江县土壤基础生态位适宜度(SBNF)平均值为(0.578±0.098),土壤适宜度为中等水平,其与海拔高度呈负相关;双江县土壤肥力可分为5个等级,其中,中低肥力等级(SBNF<0.676)土壤比例为87.7%。【结论】双江县植烟区域土壤的有机质和速效氮偏高,速效磷、速效钾和有效锌丰富,有效硼和水溶性氯缺乏,p H值偏低;双江县土壤基础生态位适宜度和土壤肥力均属中等水平。【Objective】Based on soil fertility index such as pH,organic matter,available N,available P,available K,available B,available Zn and water-soluble chlorine of Shuangjiang planting tobacco area in Lincang City,the soil characteristic and niche fitness were discussed.【Method】The soil nutrient characteristic and change trend along altitudinal gradient were investigated by statistical analysis and linear regression analysis.The comprehensive evaluation of soil fertility was studied with entropy method,soil basal niche fitness and cluster analysis.【Result】The results indicated that organic matter,available N,available P,available K and available B of soil had significantly positive correlation with altitude,the mean or median were(3.31±1.13)%,(109.58±35.47)mg/kg,(23.57±18.44)mg/kg,(135.61+69.66)mg/k,0.45(0.30)mg/kg respectively.Available Zn,pH and water-soluble chlorine presented negative correlation with altitude and Zn was significant correlation,the mean or median respectively were 1.17(0.90)mg/kg,5.18±0.26,10.85(9.21)mg/kg.The average of soil basal niche fitness(SBNF)which was intermediate-level was 0.578±0.098,and the soil niche fitness was correlated with altitude.The soil fertility of Shuangjiang County was divided into 5 grades,and the medium-low level of fertility(SBNF<0.676)was 87.7%.【Conclusion】There were higher organic matter and available N,rich available P,available K and available Zn,but poor available B and water-soluble chlorine in Shuangjiang planting tobacco area.The niche fitness and the soil fertility were medium level.

关 键 词：双江县植烟区域 海拔 土壤特征 熵权法 生态位适宜度 

分 类 号：S158[农业科学—土壤学]