期刊论文

Characteristics of Red Soil Water Flows Under Different Land Use Types in the Subtropics Zone

中文

水土保持学报

1009-2242

2019

33

6

233-241

10.13870/j.cnki.stbcxb.2019.06.033

41601215:国家自然科学基金 41771261:国家自然科学基金 2016CFA027:湖北省自然科学基金 CCNU17ZDJC06:中央高校基本科研业务费专项华中师范大学项目 CCNU18QN002:中央高校基本科研业务费专项华中师范大学项目 CCNU19TS005:中央高校基本科研业务费专项华中师范大学项目

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以江西省鹰潭市的典型旱地、稻田和林地为研究对象,采用野外亮蓝染色示踪试验结合室内图像处理的方法,量化了各样地土壤剖面染色特征参数,明确了水流类型的剖面分布规律,并揭示了土壤理化性质对水流特征的影响机制。结果表明:染色面积比（SAR）随着土层深度的增加急剧降低,0—60 cm土层的平均SAR表现为稻田（28.16%）高于旱地（21.95%）和林地（18.64%）,SAR差异主要体现在5—25 cm土层;染色路径数（SPN）随着土层深度的增加先增加后减小,整个剖面的平均SPN为稻田最多（20条）,旱地其次（12条）,林地最少（9条）。各样地0—20 cm土层染色路径宽度（SPW）均以1—10 cm为主,水流类型从上至下依次为...

In this study,the water flow of red soils in upland field,paddy field,and forest in Yingtan city were studied by the dye tracing experiment and digital image analysis.The parameters of dye distribution characteristics in three fields were quantified and their water flow patterns were defined.The effects of soil physiochemical properties on the water flow patterns were revealed.The results showed that the staining area ratio(SAR)decreased sharply with increasing soil depth.The higher average SAR of 0—60 cm soil layer was observed in paddy field...