| 三门峡烟区土壤pH时空变异特征 |
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| 引用本文： | 乔红波,张慧,高瑞,陈胜利,汪孝国. 三门峡烟区土壤pH时空变异特征[J]. 中国烟草科学, 2010, 31(4): 48-51. DOI: 10.3969/j.issn.1007-5119.2010.04.010 |
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| 作者姓名： | 乔红波 张慧 高瑞 陈胜利 汪孝国 |
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| 作者单位： | 1. 河南农业大学信息与管理科学学院,郑州,450002
2. 河南省烟草公司三门峡分公司,河南,三门峡,472000 |
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| 摘 要： | 利用地统计学方法结合GIS空间分析技术,对三门峡烟区土壤耕层（0～20cm）pH时间和空间变异特征进行了研究。结果表明,三门峡烟区pH在6.5～8.8之间变动,能够满足优质烟生产需要,但局部地区pH较高。pH服从对数正态分布,2002和2007年变异系数分别为15.2%和4.5%,变异函数的最佳理论模型为指数模型。土壤pH具有强烈的空间相关性,2002和2007年的变程分别为55.77km和92.39km。采用Kriging最优内插法得到三门峡烟区2002和2007年土壤pH空间分布图和差异图,并分析了土壤pH升高的原因和土壤改良措施。
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| 关 键 词： | pH 半方差函数 空间变异 GIS Kriging插值 |
Temporal and Spatial Variability of Soil pH in Sanmenxia Tobacco Area |
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| QIAO Hongbo,ZHANG Hui,GAO Rui,CHEN Shengli,WANG Xiaoguo. Temporal and Spatial Variability of Soil pH in Sanmenxia Tobacco Area[J]. Chinese Tobacco Science, 2010, 31(4): 48-51. DOI: 10.3969/j.issn.1007-5119.2010.04.010 |
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| Authors: | QIAO Hongbo ZHANG Hui GAO Rui CHEN Shengli WANG Xiaoguo |
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| Affiliation: | QIAO Hongbo1,ZHANG Hui1,GAO Rui1,CHEN Shengli2,WANG Xiaoguo2(1.College of Information and Management Science,Henan Agricultural University,Zhengzhou 450002,China,2.Sanmenxia Branch of Henan Tobacco Company,Sanmenxia,Henan 472000,China) |
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| Abstract: | Geostatistics with GIS spatial technology was applied to analyze the temporal and spatial variability of pH in top soil(0-20 cm) for tobacco planting region in Sanmenxia,Henan province.The results indicated that soil pH value ranged form 6.5 to 8.8 and met the requirement to produce high quality tobacco leave,but the pH value in some locations was a little high.The distribution of pH value was logarithm normal distribution,its variance coefficient was 15.2% and 4.5% for 2002 and 2007,respectively.The semiva... |
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| Keywords: | pH GIS |
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