典型岩溶区土壤pH值的空间异质性研究
S153.4; 应用地统计学与GIS技术,将土壤pH值室内布点和实地监测相结合,研究广西果化示范区土壤pH值的空间变异特征.结果表明:5～30 cm各层土壤的pH均值在6.35～6.57之间,变异系数在9.49％～ 10.10％之间,不同深度之间土壤pH值的垂直变异不显著.其中,5 cm深度的表层土壤pH值变异系数较大,属于中强度变异(10％＜CV＜30％);浅层和深层的土壤pH值变异系数较小,属于低强度变异(CV＜10％).土壤pH的空间分布不均匀,空间集聚较为明显,且多呈弧状和斑状分布,同时呈现出多条较为平缓的梯度变化条带.不同深度土壤pH值的最小空间变程660 m,可作为果化示范区土壤p...
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| Published in | 广东农业科学 Vol. 40; no. 11; pp. 48 - 51 |
|---|---|
| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
广西师范大学环境与资源学院,广西桂林541004
2013
惠州学院旅游系,广东惠州,516007%中国地质科学院岩溶地质研究所,广西桂林,541004%中国地质科学院岩溶地质研究所,广西桂林541004 |
| Subjects | |
| Online Access | Get full text |
| ISSN | 1004-874X |
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| Abstract | S153.4; 应用地统计学与GIS技术,将土壤pH值室内布点和实地监测相结合,研究广西果化示范区土壤pH值的空间变异特征.结果表明:5～30 cm各层土壤的pH均值在6.35～6.57之间,变异系数在9.49％～ 10.10％之间,不同深度之间土壤pH值的垂直变异不显著.其中,5 cm深度的表层土壤pH值变异系数较大,属于中强度变异(10％＜CV＜30％);浅层和深层的土壤pH值变异系数较小,属于低强度变异(CV＜10％).土壤pH的空间分布不均匀,空间集聚较为明显,且多呈弧状和斑状分布,同时呈现出多条较为平缓的梯度变化条带.不同深度土壤pH值的最小空间变程660 m,可作为果化示范区土壤pH值样点布设的最佳取样间隔. |
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| AbstractList | 应用地统计学与GIS技术,将土壤pH值室内布点和实地监测相结合,研究广西果化示范区土壤pH值的空间变异特征。结果表明：5~30 cm各层土壤的pH均值在6.35~6.57之间,变异系数在9.49%~10.10%之间,不同深度之间土壤pH值的垂直变异不显著。其中,5 cm深度的表层土壤pH值变异系数较大,属于中强度变异（10% S153.4; 应用地统计学与GIS技术,将土壤pH值室内布点和实地监测相结合,研究广西果化示范区土壤pH值的空间变异特征.结果表明:5～30 cm各层土壤的pH均值在6.35～6.57之间,变异系数在9.49％～ 10.10％之间,不同深度之间土壤pH值的垂直变异不显著.其中,5 cm深度的表层土壤pH值变异系数较大,属于中强度变异(10％＜CV＜30％);浅层和深层的土壤pH值变异系数较小,属于低强度变异(CV＜10％).土壤pH的空间分布不均匀,空间集聚较为明显,且多呈弧状和斑状分布,同时呈现出多条较为平缓的梯度变化条带.不同深度土壤pH值的最小空间变程660 m,可作为果化示范区土壤pH值样点布设的最佳取样间隔. |
| Author | 尹辉 蒋忠诚 杨奇勇 李晖 |
| AuthorAffiliation | 惠州学院旅游系,广东惠州516007 中国地质科学院岩溶地质研究所,广西桂林541004 广西师范大学环境与资源学院,广西桂林541004 |
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| Author_FL | JIANG Zhong-cheng YANG Qi-yong YIN Hui LI Hui |
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| DocumentTitleAlternate | Study of spatial variability of soil pH in typical karst area |
| DocumentTitle_FL | Study of spatial variability of soil pH in typical karst area |
| EndPage | 51 |
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| Issue | 11 |
| Keywords | pH 空间异质性 典型岩溶区 土壤 |
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| Notes | soil ;pH ; spatial variability ;typical karst area 44-1267/S By using Geo-statistics and GIS, combining with indoor sampling point distribution and field monitoring of soil water content, the spatial variability characteristics of soil pH in Guohua demonstration area were studied. Statistical analysis showed that the average soil pH among various layers was from 6.35 to 6.57 while variation coefficient was from 9.49% to 10.10%, which revealed variation coefficient of soil pH had weak variability. Variation coefficient of soil pH in 5 cm layer was relatively bigger, belonging to middle intense variation （10%〈CV〈30%）; variation coefficients of soil pH from 10 cm layer to 30 cm layer were relatively smaller, belonging to low intense variation （CV 〈10%）. Soil pH showed uneven arc-shaped and patchy spatial distribution, obvious spatial agglomeration, and many gradually gradient changing strips. The minimun spatial variable scale of soil pH under different layers was 660 m, which could be served as the best interval |
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| PublicationTitle | 广东农业科学 |
| PublicationTitleAlternate | Guangdong Agricultural Sciences |
| PublicationTitle_FL | Guangdong Agricultural Sciences |
| PublicationYear | 2013 |
| Publisher | 广西师范大学环境与资源学院,广西桂林541004 惠州学院旅游系,广东惠州,516007%中国地质科学院岩溶地质研究所,广西桂林,541004%中国地质科学院岩溶地质研究所,广西桂林541004 |
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| Snippet | 应用地统计学与GIS技术,将土壤pH值室内布点和实地监测相结合,研究广西果化示范区土壤pH值的空间变异特征。结果表明：5~30 cm各层土壤的pH均值在6.35~6.57之间,变异系数在9.49%~10.10%之间,不同深度之间土壤pH值的垂直变异不显著。其中,5... S153.4; 应用地统计学与GIS技术,将土壤pH值室内布点和实地监测相结合,研究广西果化示范区土壤pH值的空间变异特征.结果表明:5～30 cm各层土壤的pH均值在6.35～6.57之间,变异系数在9.49％～ 10.10％之间,不同深度之间土壤pH值的垂直变异不显著.其中,5... |
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| SubjectTerms | pH 典型岩溶区 土壤 空间异质性 |
| Title | 典型岩溶区土壤pH值的空间异质性研究 |
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