| 引用本文: | 薛鹏威,徐保利,夏 雄,等.连通方式和田埂宽度对稻田-田埂过渡区土壤性质影响的研究[J].灌溉排水学报,2025,44(4):108-116. |
| XUE Pengwei,XU Baoli,XIA Xiong,et al.连通方式和田埂宽度对稻田-田埂过渡区土壤性质影响的研究[J].灌溉排水学报,2025,44(4):108-116. |
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| 摘要: |
| 【目的】揭示水稻灌区稻田、田埂、沟（塘、河）景观连通处理对稻田-田埂过渡区土壤理化性质的影响。【方法】选择田-埂-田（TGT）、田-埂-沟（TGg）、田-埂-塘（TGA）、田-埂-河（TGH）4种连通处理，采用野外控制试验和室内样品分析方法，研究连通处理和田埂宽度对稻田、田埂土壤理化性质的影响。【结果】与TGT处理相比，TGg、TGA、TGH处理田埂土壤体积质量和砂粒量较低；连通方式改变了土壤垂直方向质地变化规律：TGg处理40~60 cm土层及TGT、TGA、TGH处理20~40 cm土层土壤体积质量较高，而土壤饱和含水率、田间持水率和饱和导水率较低；随着田埂宽度增加，土壤体积质量、田间持水率呈下降趋势。【结论】考虑到土壤压实情况和水分运移情况，TGg、TGA、TGH处理田埂可能更容易造成水分流失；当田埂宽度为50 cm时，土壤质地较为紧实，最有利于水分和营养元素的保留。 |
| 关键词: 稻田；田埂；连通方式；田埂宽度；理化性质 |
| DOI：10.13522/j.cnki.ggps.2024324 |
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| Effects of interconnections and ridge widths on soil properties at the paddy field-ridge transition zones |
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XUE Pengwei, XU Baoli, XIA Xiong, HUANG Jianhua,
FANG Zhongjie, FANG Rongjie, DAI Junfeng
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1. College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541006, China;
2. Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin 541006, China; 3. Collaborative Innovation Center for Water Pollution Control and Water Safety in Karst Area, Guilin University of Technology, Guilin 541006, China; 4. University Engineering Research Center of Watershed Protection and Green Development of Guangxi , Guilin 541006, China
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| Abstract: |
| 【Objective】Paddy field-ridge transition zones serve various functions in paddy fields. This paper investigates the effects of different interconnections and ridge widths on soil properties in these transition zones.【Method】Four interconnection types: field-ridge-field (TGT), field-ridge-ditch (TGg), field-ridge-pond (TGA), and field-ridge-river (TGH), were compared to study their combined effects with ridge width on the physical and chemical properties of the soil. Both in situ field experiments and laboratory analyses were used to assess the soil properties.【Result】Compared to TGT, TGg, TGA, and TGH reduced soil bulk density and sand content in the ridge. The interconnections also influenced the variation in soil texture along the soil profile. Soil bulk density peaked at depths of 40-60 cm under TGg, while in the other interconnections, it peaked at depths of 20-40 cm. At these depths, saturated soil water content, field capacity, and saturated hydraulic conductivity were lower compared to other soil layers. Additionally, increasing the ridge width reduced both soil bulk density and field capacity.【Conclusion】Considering soil compaction and water movement, TGg, TGA, and TGH ridge treatments resulted in water loss. When the ridge width was 50 cm, the soil exhibited the highest compaction, which favored water and nutrient retention. |
| Key words: paddy field; ridge; connection treatments; ridge width; physical and chemical properties |
