浏阳市植烟土壤微量元素时空变异特征研究
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摘要
以浏阳市2000年和2015年植烟土壤为研究对象,利用经典统计学方法和地统计学等方法,研究了其土壤中部分微量元素的时空变异特征。结果表明,15年间土壤有效锌和有效硼的含量分别增加了1.40 mg/kg、和0.48 mg/kg,增幅分别为70.35%和218.18%,土壤有效钼含量下降了0.01 mg/kg,降幅为14.29%。从空间分布来看,土壤有效锌含量"低"和"适宜"等级的面积减少,"高"等级的面积大幅增加;土壤有效硼含量"极低"和"低"等级的面积消失,新增较大的"适宜"和"高"等级的面积;土壤有效钼含量"极低"和等级的面积大幅增加,"低"等级的面积大幅下降。
The major trace elements in cultivated soils of Liuyang tobacco-growing areas in 2000 and 2015 was studied by using classical statistical methods and geostatistics to find out the spatial and temporal variation characteristics. The results showed that the contents of available Zn and B in soil increased by 1.40 mg/kg and 0.48 mg/kg in the past 15 years, the increasing rate was 70.35% and 218.18% respectively; the contents of available Mo in soil decreased by 0.01 mg/kg and 14.29%. From the spatial distribution, the areas of "low" and "suitable" grade of available Zn in soil decreased, and the "high" grade increased. The area of "extremely low" and "low" grade of soil available B disappeared, and the area of "suitable" and "high" grade increased. The areas of "extremely low" and "suitable" grade of available Mo increased, and the "low" grade decreased.
The major trace elements in cultivated soils of Liuyang tobacco-growing areas in 2000 and 2015 was studied by using classical statistical methods and geostatistics to find out the spatial and temporal variation characteristics. The results showed that the contents of available Zn and B in soil increased by 1.40 mg/kg and 0.48 mg/kg in the past 15 years, the increasing rate was 70.35% and 218.18% respectively; the contents of available Mo in soil decreased by 0.01 mg/kg and 14.29%. From the spatial distribution, the areas of "low" and "suitable" grade of available Zn in soil decreased, and the "high" grade increased. The area of "extremely low" and "low" grade of soil available B disappeared, and the area of "suitable" and "high" grade increased. The areas of "extremely low" and "suitable" grade of available Mo increased, and the "low" grade decreased.
引文
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[3]刘占锋,傅伯杰,刘国华,等.土壤质量与土壤质量指标及其评价[J].生态学报,2006, 26(3):901-913.
[4]秦钟立,秦松,武伟,等.贵州植烟土壤微量元素特征研究[J].西南大学学报(自然科学版), 2007, 29(1):56-64.
[5]黎妍妍,许自成,肖汉乾,等.湖南省主要植烟区土壤肥力状况综合评价[J].西北农林科技大学学报(自然科学版),2006,34(11):179-183.
[6]胡国松,郑伟,王震东,等.烤烟营养原理[M].北京:科学出版社,2000.
[7]周毓华.微肥施用对烟叶产质量的影响研究[J].中国烟草科学,2000, 21(4):29-31.
[8]谢鹏飞,邓小华,何命军,等.浏阳县植烟土壤养分丰缺状况分析[J].中国农学通报, 2011,27(5):154-162.
[9]刘国顺.烟草栽培学[M].北京:中国农业出版社, 2003.
[10]李强,周冀衡,杨荣生,等.曲靖植烟土壤养分空间变异及土壤肥力适宜性评价[J].应用生态学报,2011,22(4):950-956.
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[12]鲍士旦.土壤农化分析(3版)[M].北京:中国农业出版社,2000.