[1]谢志强,许建林,朱兆龙,等.一种可用于评估土壤团聚体稳定性的超声能量法[J].水土保持研究,2016,23(04):19-22.
　XIE Zhiqiang,XU Jianlin,ZHU Zhaolong,et al.Application of Ultrasonic Energy for Assessing Aggregate Stability[J].Research of Soil and Water Conservation,2016,23(04):19-22.
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一种可用于评估土壤团聚体稳定性的超声能量法

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 23 期数: 2016年04期 页码: 19-22 栏目: 出版日期: 2016-08-28
Title:
Application of Ultrasonic Energy for Assessing Aggregate Stability
作者:
谢志强1, 许建林1, 朱兆龙1,2, 安韶山2
1. 西北农林科技大学 机械与电子工程学院, 陕西 杨凌 712100;
2. 西北农林科技大学 黄土高原土壤侵蚀与旱地农业国家重点实验室, 陕西 杨凌 712100
Author(s):
XIE Zhiqiang1, XU Jianlin1, ZHU Zhaolong1,2, AN Shaoshan2
1. College of Mechanical and Electronic Engineering, Northwest A & F University, Yangling, Shaanxi 712100, China;
2. State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A & F University, Yangling, Shaanxi 712100, China
关键词:
土壤团聚体; 团聚体稳定性; 超声能量; Yoder湿筛法
Keywords:
soil aggregate; aggregate stability; ultrasonic energy; Yoder method
分类号:
S152.4
摘要:
团聚体稳定性是土壤质量的重要指标。鉴于当前团聚体稳定性难以定量的研究现状，本文提出一个可定量评估土壤团聚体稳定性的超声能量法，并与传统Yoder湿筛法对比分析了稳定性土样（浙江潮土、重庆黄壤土、江西红壤）和弱稳定性土样（河北壤土和黑龙江暗棕壤）五种典型土壤的5~3 mm粒级团聚体的平均重量直径（MWD）和团聚体粒径分布（ASD）。结果表明：（1）测试土样的稳定性为潮土 > 红壤 > 黄壤土 >> 暗棕壤 > 壤土；（2）超声能量法分散强度大，分散效率高，更适用于稳定性土样的评估，对于弱稳定性土样的评估则不如传统Yoder湿筛法。因此，评估土壤团聚体稳定性时可以选择合适的测量方法以提高分辨精度，即强稳定性土壤对比分析应选用超声能量法，而弱稳定性土壤对比分析则可以用Yoder湿筛法。
Abstract:
Aggregate stability is an important index of soil quality, but hard to be quantified. Here an ultrasonic energy method was developed to quantify soil aggregate stability, and its practicability was tested by comparing with Yoder method in terms of mean weight diameter (MWD) and aggregate size distribution (ASD) of two groups of soils, 3 stable soils (Fluvo-aquic soil from Zhejiang Province, Yellow loam from Chongqing City, Red soil from Jiangxi) and 2 weak soils (Loam from Hebei Province, Dark brown soil from Shangdong Province). The results show that the stability indicated by MWD decreases in the order:Fluvo-aquic soil > Red soil > Yellow loam >> Dark Brown soil > Loam; the ultrasonic dispersion cam break soil aggregate efficiently due to its strong dispersing power, and thus this method prefers to strong soil than Yoder method, but this method seems not to be suitable to assess the aggregate stability of weak soil compared with Yoder method. Therefore, a proper method assessing soil aggregate stability can be chosen through the rule:ultrasonic energy method for stable soil, Yoder method for weak soil.

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备注/Memo

收稿日期:2016-01-25;改回日期:2016-03-02。
基金项目:国家自然科学基金项目（41171226，41101201）；教育部新世纪优秀人才（NCET-2-0479）
作者简介:谢志强(1990-),男,湖南衡阳人,硕士研究生,主要从事智能检测与控制技术研究。Email:jipaodexiaoyu@nwsuaf.edu.cn
通讯作者:朱兆龙(1977-),男,福建永泰人,博士,助理研究员,主要从事土壤结构研究。E-mail:zhu_zl@nwsuaf.edu.cn

更新日期/Last Update: 1900-01-01