| 石漠化澳洲坚果园土壤养分及pH值空间异质性分析 |
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| 引用本文： | 谭秋锦,王文林,陈海生＊,郑树芳,覃振师,何铣扬,黄锡云,许 鹏.石漠化澳洲坚果园土壤养分及pH值空间异质性分析[J].中国农学通报,2020,36(2):80-83. |
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| 作者姓名： | 谭秋锦 王文林 陈海生＊ 郑树芳 覃振师 何铣扬 黄锡云 许 鹏 |
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| 作者单位： | 广西南亚热带农业科学研究所,广西龙州 532415 |
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| 基金项目： | 国家重点研发计划“生态服务提升与民生改善的石漠化治理模式集成与示范”(2016YFC0502406)；广西科技重大专项“澳洲坚果优良品种 选育技术研究与示范推广”,“澳洲坚果早实丰产栽培技术研究与示范”,“富硒澳洲坚果标准化生产技术研究与应用”（桂科AA17204058-4，桂科 AA17204058-8，桂科AA17202037-9)；广西科技基地和人才专项“坚果产业科技服务团建设与服务示范”（桂科AD17195008）；南宁市宾阳科技专项 “澳洲坚果新品种引进及优质高产栽培技术示范”(20170202)。 |
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| 摘 要： | 调查了解土壤养分及pH值空间异质性特征是石漠化澳洲坚果园土壤养分管理与施肥决策的前提。本研究基于经典统计学和地统计学方法,分析澳洲坚果园土壤表层pH值及土壤养分要素的空间异质性特征。结果表明,澳洲坚果园土壤有机质含量丰富,全磷缺乏;土壤养分和pH值指标的变异系数在7.14%~33.92%之间,变异程度中等。pH值、有机碳、全氮、全磷和全钾呈强烈的空间自相关,空间自相关距离最大的是有机碳,最小的是全磷。
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| 关 键 词： | 澳洲坚果 pH值 土壤养分 空间异质性 喀斯特 |
| 收稿时间： | 2019/1/13 0:00:00 |
| 修稿时间： | 2019/4/3 0:00:00 |
Spatial Heterogeneity of Soil Nutrients and pH Value in Macadamia ternifolia Orchard in Karst Region |
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| Tan Qiujin,Wang Wenlin,Chen Haisheng,Zheng Shufang,Qin Zhenshi,He Xianyang,Huang Xiyun,Xu Peng.Spatial Heterogeneity of Soil Nutrients and pH Value in Macadamia ternifolia Orchard in Karst Region[J].Chinese Agricultural Science Bulletin,2020,36(2):80-83. |
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| Authors: | Tan Qiujin Wang Wenlin Chen Haisheng Zheng Shufang Qin Zhenshi He Xianyang Huang Xiyun Xu Peng |
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| Institution: | Guangxi South Subtropical Agricultural Science Research Institute, Longzhou Guangxi 532415 |
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| Abstract: | Evaluation of spatial heterogeneity of soil nutrients and pH value forms a basis for management of soil nutrients and fertilization in Macadamia ternifolia orchard in Karst region of southwest Guangxi. In the paper, the spatial heterogenity of soil nutrients and pH value in M. ternifolia orchard was evaluated using classical statistics and geostatistics. The results indicated rich soil organic carbon and poor total of phosphours in the study area, the variation coefficients of four soil nutrient indicators ranged from 7.14% to 33.92%, belonged to moderate variability. The pH and soil nutrients were characterized by strong spatial autocorrelation, the largest spatial autocorrelation distance was organic carbon, the smallest was total phosphorus. |
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| Keywords: | Macadamia ternifolia soil nutrients spatial heterogeneity karst region |
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