| 近37年扬州市耕地土壤有效锌含量时空变化特征 |
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| 引用本文： | 苏胜,毛伟,李文西,陈明,陈欣,刘翔麟,王翔,张弘毅,杜平.近37年扬州市耕地土壤有效锌含量时空变化特征[J].土壤,2024,56(1):214-221. |
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| 作者姓名： | 苏胜 毛伟 李文西 陈明 陈欣 刘翔麟 王翔 张弘毅 杜平 |
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| 作者单位： | 扬州市耕地质量保护站/农业农村部耕地质量监测与评价重点实验室/江苏耕地质量与测土配方施肥数据中心, 江苏扬州 225009 |
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| 基金项目： | 国家重点研发计划项目（2016YFD0200300）资助。 |
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| 摘 要： | 基于扬州市1984—2020年表层土壤数据,运用地统计分析和相关性分析方法,系统分析了扬州市耕地土壤有效锌含量时空变化特征及其影响因素。结果表明:近37年扬州市耕地土壤有效锌平均含量上升1.15 mg/kg,增幅达188.5%;扬州市耕地土壤有效锌分布存在明显的空间异质性,总体上呈现南高北低、西高东低的分布特征。成土母质、土壤质地及土地利用方式不同,耕地土壤有效锌含量存在显著差异。不同成土母质中,长江冲积物发育土壤有效锌含量较高;不同土壤质地中,砂壤土中有效锌含量较高;不同土地利用方式中,旱地土壤中有效锌含量最高。土壤pH及有机质含量与土壤有效锌含量存在不同程度的响应关系。
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| 关 键 词： | 耕地土壤 土壤有效锌 时空变异 影响因素 扬州市 |
| 收稿时间： | 2023/4/15 0:00:00 |
| 修稿时间： | 2023/5/16 0:00:00 |
Spatio-Temporal Variations of Cropland Soil Available Zn over the Past 37 Years in Yangzhou City |
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| SU Sheng,MAO Wei,LI Wenxi,CHEN Ming,CHEN Xin,LIU Xianglin,WANG Xiang,ZHANG Hongyi,DU Ping.Spatio-Temporal Variations of Cropland Soil Available Zn over the Past 37 Years in Yangzhou City[J].Soils,2024,56(1):214-221. |
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| Authors: | SU Sheng MAO Wei LI Wenxi CHEN Ming CHEN Xin LIU Xianglin WANG Xiang ZHANG Hongyi DU Ping |
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| Institution: | Yangzhou Cultivated Land Quality Protection Station/Key Laboratory of Cultivated Land Quality Monitoring and Evaluation, Ministry of Agriculture and Rural Affairs/Jiangsu Cultivated Land Quality and Soil Formula Fertilization Data Center, Yangzhou, Jiangsu 225009, China |
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| Abstract: | Based on the data of topsoil available Zn contents of croplands in 1984-2020 in Yangzhou City, geostatistical analysis and correlation analysis were applied to systematically analyze spatio-temporal variation characteristics of available Zn and its influencing factors. The results showed that available Zn increased meanly by 1.15 mg/kg and by 188.5% in the past 37 years. Available Zn was spatially heterogeneous, which was high in south and west, but low in north and east. Available Zn was significantly different between different parent materials, soil textures and soil utilizations, among of which, the Yangtze River alluvial deposit had the higher available Zn than other parent materials, sandy loam soil had higher available Zn than other textures, dry field had higher available Zn than other land use types. Additionally, soil available Zn had certain relationship with soil pH and organic matter. |
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| Keywords: | Cropland soil Soil available Zn Spatio-temporal variations Influential factors Yangzhou City |
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