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| 扬州市耕地土壤有效硼含量的时空变异特征及驱动因子分析 |
| Spatiotemporal variability and driving factors of soil available boron content in Yangzhou City, China |
| Received:July 18, 2022 Revised:September 21, 2022 |
| DOI：10.13254/j.jare.2022.0471 |
| 中文关键词: 扬州市，耕地土壤，有效硼，影响因素 |
| 英文关键词: Yangzhou City, cultivated soil, soil available boron, influencing factor |
| 基金项目:国家重点研发计划项目（2016YFD0200300） |
| Author Name | Affiliation | | MAO Wei | Yangzhou Cultivated Land Quality Protection Station, Yangzhou 225009, China
Key Laboratory of Arable Land Quality Monitoring and Evaluation, Ministry of Agriculture and Rural Affairs(Yangzhou University), Yangzhou 225009, China
Jiangsu Cultivated Land Quality and Soil Formula Fertilization Data Center, Yangzhou 225009, China | | LI Wenxi | Yangzhou Cultivated Land Quality Protection Station, Yangzhou 225009, China
Key Laboratory of Arable Land Quality Monitoring and Evaluation, Ministry of Agriculture and Rural Affairs(Yangzhou University), Yangzhou 225009, China
Jiangsu Cultivated Land Quality and Soil Formula Fertilization Data Center, Yangzhou 225009, China | | SU Sheng | Yangzhou Cultivated Land Quality Protection Station, Yangzhou 225009, China
Key Laboratory of Arable Land Quality Monitoring and Evaluation, Ministry of Agriculture and Rural Affairs(Yangzhou University), Yangzhou 225009, China
Jiangsu Cultivated Land Quality and Soil Formula Fertilization Data Center, Yangzhou 225009, China | | CHEN Ming | Yangzhou Cultivated Land Quality Protection Station, Yangzhou 225009, China
Key Laboratory of Arable Land Quality Monitoring and Evaluation, Ministry of Agriculture and Rural Affairs(Yangzhou University), Yangzhou 225009, China
Jiangsu Cultivated Land Quality and Soil Formula Fertilization Data Center, Yangzhou 225009, China | | CHEN Xin | Yangzhou Cultivated Land Quality Protection Station, Yangzhou 225009, China
Key Laboratory of Arable Land Quality Monitoring and Evaluation, Ministry of Agriculture and Rural Affairs(Yangzhou University), Yangzhou 225009, China
Jiangsu Cultivated Land Quality and Soil Formula Fertilization Data Center, Yangzhou 225009, China | | ZHAO Haitao | Key Laboratory of Arable Land Quality Monitoring and Evaluation, Ministry of Agriculture and Rural Affairs(Yangzhou University), Yangzhou 225009, China
College of Environmental Science and Engineering, Yangzhou University, Yangzhou 225127, China | | QIAN Xiaoqing | Key Laboratory of Arable Land Quality Monitoring and Evaluation, Ministry of Agriculture and Rural Affairs(Yangzhou University), Yangzhou 225009, China
College of Environmental Science and Engineering, Yangzhou University, Yangzhou 225127, China |
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| 中文摘要: |
| 本研究以江苏省扬州市为例，分析了长江三角洲地区耕地土壤有效硼含量的演变特征，探讨了土壤性状、理化性质和人为活动对土壤有效硼含量的影响。以扬州市1984、2005、2020年耕地土壤有效硼含量为研究对象，利用地理信息系统（GIS）和地统计学方法分析了土壤有效硼含量的时空变异特征及其驱动因素。结果表明：1984、2005、2020年扬州市耕地土壤有效硼平均含量分别为0.27、0.28、0.43 mg·kg-1，整体上均处于较低水平；1984—2020年有效硼含量增加0.16 mg·kg-1，增幅达59.26%；1984、2005年耕地土壤有效硼含量主要集中在Ⅲ、Ⅳ级水平，分别占耕地面积的98.33%、92.47%；2020年耕地土壤有效硼含量大幅提升，Ⅱ级和Ⅲ级占比高达99.37%。土壤性状对土壤有效硼含量具有显著影响：不同成土母质中，黄土母质和基岩残积物的有效硼含量较高；不同土壤质地中，轻黏土的有效硼含量较高；土壤理化性质中，土壤pH和有机质对土壤有效硼含量有显著影响。人为活动中，施肥结构和耕作方式等的改变也是影响土壤有效硼含量的重要因素。研究表明，长江三角洲地区需注重硼肥的补充，可以通过调整土壤pH值及增加有机肥的施用量等提高农田土壤有效硼含量。 |
| 英文摘要: |
| The objective of this study was to explore the spatiotemporal variability of soil available boron content in Yangzhou City, and the effect of soil physical properties, physicochemical properties, and anthropogenic activities on available boron content. The spatiotemporal variability of soil available boron content and its impact factors in the topsoil of Yangzhou soils in 1984, 2005, and 2020 were analyzed using geographic information system(GIS) and geostatistics. The results showed that the average soil available boron content in Yangzhou in 1984, 2005, and 2020 was 0.27, 0.28, and 0.43 mg·kg-1, respectively. The average soil available boron content increased by 0.16 mg·kg-1(59.26%) from 1984 to 2020. In 1984 and 2005, the soil available boron contents mainly belonged to Classes Ⅲ and Ⅳ, accounting for 98.33% and 92.47% of the cultivated land area, respectively. The soil available boron content in 2020 increased significantly, Classes Ⅱ and Ⅲ accounted for 99.37%. The soil available boron content was significantly different in relation to different soil physical properties. Among the parent materials, the loess parent material and residual rock had a higher soil available boron content than the other materials. Among the soil textures, the light clay soil had a higher soil available boron content than the other soils. Among the soil physicochemical properties, soil pH and soil organic matter content had a significant impact on the soil available boron content. Among human activities, fertilizer content and tillage management had a significant impact on soil available boron content. In summary, the Yangtze River Delta region should be emphasized the importance of supplementation of boron fertilizer, and the soil available boron content could be improved by adjusting the soil pH and applying organic fertilizers. |
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