| 县级区域粮田土壤养分的空间变异性 |
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| 引用本文： | 黄绍文,金继运,杨俐苹,程明芳.县级区域粮田土壤养分的空间变异性[J].土壤通报,2002,33(3):188-193. |
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| 作者姓名： | 黄绍文 金继运 杨俐苹 程明芳 |
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| 作者单位： | 中国农业科学院土壤肥料研究所,北京,100081 |
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| 基金项目： | 国家"九五"科技攻关项目"黄淮海平原养分资源持续高效利用新技术系统研究与示范"(编号:96-004-01-14-1),在农业部植物营养学重点开放实验室完成 |
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| 摘 要： | 采用传统统计和地统计相结合的方法 ,对面积约 470km2 的玉田县粮田耕层土壤养分进行了空间变异特征研究。结果表明 ,土壤N、P、K、Mn和Zn普遍缺乏 ,不同土壤养分的变异情况各不相同 ;土壤主要养分N、P、K、Mn和Zn含量的空间变异结构明显 ,在较大范围内存在着空间相关性 ,具有一定的渐变性分布规律 ,这一基本趋势对土壤养分分区管理是有利的
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| 关 键 词： | 土壤养分 空间变异 半方差 |
| 文章编号： | 0564-3945(2002)03-0188-06 |
| 修稿时间： | 2001年3月10日 |
Spatial Variability of Soil Nutrients in Grain Crop Region of Yutian County |
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| HUANG Shao-wen,JIN Ji-yun,YANG Li-ping,CHENG Ming-fang.Spatial Variability of Soil Nutrients in Grain Crop Region of Yutian County[J].Chinese Journal of Soil Science,2002,33(3):188-193. |
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| Authors: | HUANG Shao-wen JIN Ji-yun YANG Li-ping CHENG Ming-fang |
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| Abstract: | Spatial variability of soil nutrients in grain crop region with area of 470 km 2 was studied using geo-statistics. The results showed that soils in grain crop region were widely deficient in N, P, K, Mn and Zn. The variation of soil nutrients differed obviously. Semi-variance structures for spatial variability of available soil N, P, K, Mn and Zn existed in grain crop region from Yutian experimental region. It revealed that the spatial correlation in available nutrient contents developed in relative large-block scale, and the basic tendency will be useful for development of regionalized soil nutrient management. |
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| Keywords: | Soil nutrient Spatial variability Semi-variance |
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