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土壤大孔隙流研究进展

李伟莉1,2;金昌杰1;王安志1;裴铁璠1;关德新1   

  1. 1中国科学院沈阳应用生态研究所, 沈阳 110016;2中国科学院研究生院,北京 100039
  • 收稿日期:2006-06-12 修回日期:1900-01-01 出版日期:2007-04-05 发布日期:2007-04-05

Research progress in soil macropore flow.

LI Wei-li1,2; JIN Chang-jie1; WANG An-zhi1; PEI Tie-fan1;GUAN De-xin1   

  1. 1Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China;2Graduate University of Chinese Academy of Sciences, Beijing 100039, China
  • Received:2006-06-12 Revised:1900-01-01 Online:2007-04-05 Published:2007-04-05

摘要: 介绍了大孔隙及大孔隙流的定义、多种表现形式及其重要特征、产生机理和室内外实验研究概况,以及染色示踪、切片、穿透曲线、张力入渗仪、X射线CT扫描摄像和雷达探测等方法的研究进展,揭示这些实验方法的优点与存在的问题.并指出由于影响大孔隙及大孔隙流的因素较复杂,应将大量的野外实验和室内实验相结合,同时改进观测方法, 提高模拟手段,不断完善大孔隙流理论,使大孔隙流研究迈上一个新台阶.

关键词: 无公害农药, 农业措施, 水稻, 病虫草, 防效

Abstract: In this paper, the definitions of soil macropore and macropore flow, their types, characteristics, generation mechanisms, and experimental methods in laboratory and field were introduced, and the research progress in their determination techniques, including dye tracing, slice up, penetration curve, tension infiltration apparatus, X-ray CT scanning, and radar exploration were summarized. It was indicated that because of the complexity of the factors affecting soil macropore and macropore flow, the experiments in laboratory should be combined with those in field, and the observation techniques and simulation measures should be further improved.

Key words: Biorational pesticide, Agricultural methods, Rice, Pest organism, Efficacy