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中国农学通报 ›› 2014, Vol. 30 ›› Issue (9): 165-169.doi: 10.11924/j.issn.1000-6850.2013-1762

所属专题: 烟草种植与生产

• 农学 农业基础科学 • 上一篇    下一篇

湘西州植烟土壤全钾含量分布特征

彭莹 邓小华 田峰 肖瑾 张黎明 覃勇 邓井青   

  • 收稿日期:2013-06-26 修回日期:2013-07-18 出版日期:2014-03-25 发布日期:2014-03-25
  • 基金资助:
    国家烟草专卖局特色优质烟叶开发重大专项“中间香型特色优质烟叶开发”(ts-02);“湘西烟区生态评价与品牌导向型基地布局研究”(2011130165)。

Distribution of Total Potassium Contents of Tobacco-growing Soil in Xiangxi Autonomous Prefecture

  • Received:2013-06-26 Revised:2013-07-18 Online:2014-03-25 Published:2014-03-25

摘要: 为明确湘西州植烟土壤全钾含量分布特征,采集湘西烟区488个土壤样本,分析了其全钾含量丰缺状况、在不同土壤类型和海拔分别差异及空间分布。结果表明:(1)湘西植烟土壤全钾含量总体处于略偏低水平,平均值为1.535%,变幅在0.569%~2.935%,变异系数为27.83%,处于适宜范围内的样本占34.09%。(2)红灰土的全钾含量显著地高于其他土壤类型。(3)海拔高度在1000 m以上植烟土壤全钾含量相对较高。(4)湘西州植烟土壤全钾含量总体上呈斑块状分布态势,但具有南北高和中部低的趋势。

关键词: 光合作用, 光合作用

Abstract: The distribution characteristics of toatal K contents in tobacco growing soils were analyzed by collected 488 soil samples in Xiangxi. The results were as follows:(1) total K contents in the tobacco soil is generally on the slightly low side for tobacco cultivation with a mean of 1.535%, amplitude of 0.569%~2.935% and variation coefficient of27.83%. About 34.09% of the soil samples of total K contents is suitable for tobacco cultivation. (2)The average content of total K in red-ash soil was signally higher than the other soil types.(3) The average content of total K in the soil above 1000m was relatively higher than the other altitude.(4) IDW interpolation map indicated that the spatial distributions of total K content were patchness distribution and have a trend which high areas in north and south and low areas in middle.