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永定河河滨带土壤机械组成特征及异质性分析

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[目的]研究永定河河滨带土壤机械组成特征及异质性分析,为河滨带土壤改良及生态修复提供理论参考.[方法]采用室外定点采样与室内测定分析相结合的方法,研究了永定河河滨带不同地段上下层(0~10、10~20cm)土壤的机械组成.[结果]永定河河滨带土壤机械组成中主要以砾石含量为主,黏粒含量较少,均低于5%.在砾石类组分上,10~20cm含量大于0~10cm含量,沙粒、粉粒则表现出0~10cm含量大于10~20cm含量,黏粒含量上下层间变化不明显.上、中、下游砾石、沙粒、粉粒含量变化幅度较大,而黏粒变化不明显.[结论]应根据土壤状况合理施肥,改良中要注意土壤机械组成恢复的合理结构.
Characteristics of Soil Mechanical Composition and Heterogeneity Analysis Of River Beach in Yongding River
[ Objective ] The aim was to research characteristics of soil mechanical composition and heterogeneity analysis of river beach inYongding River and provide theoretical reference for ecological restoration. [ Method ] Using outdoor fixed-point sampling and indoor analysis method,soil mechanical composition of different sections in the Yong ding River was studied. [ Result] The results showed that in Yongding River the soil mechanical composition was content of gravel,clay content was less, but all less than 5 %. In components of the gravel class, 10 -20 cm content was greater than 0 - 10 cm, sand, silt content showed 0 - 10 cm content was greater than 10 -20 cm, between the upper and lower clay content did not change significantly. [ Conclusion ] Rational fertilization should be based on soil conditions, improvement should pay attention to the reasonable structure of soil mechanical composition.

Yongding RiverRiver beachSoil mechanical compositionHeterogeneity analysis

王硕、刘永兵、王利军、魏炜、陈俊、李翔、于小飞、王湛

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轻工业环境保护研究所,北京,100089

北京市水利规划设计研究院,北京,100044

中国水利水电科学研究院,北京,100048

永定河 河滨带 土壤机械组成 异质性分析

北京市科委资助项目北京市委组织部优秀人才项目

D09040903700802

2011

安徽农业科学
安徽省农业科学院

安徽农业科学

影响因子:0.413
ISSN:0517-6611
年,卷(期):2011.39(8)
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