中国地理科学(英文版) ›› 2013, Vol. 23 ›› Issue (3): 312-320.doi: 10.1007/s11769-013-0606-9

• 论文 • 上一篇    下一篇

Effects of Tillage Management on Infiltration and Preferential Flow in a Black Soil, Northeast China

FAN Ruqin1,2, ZHANG Xiaoping1, YANG Xueming3, LIANG Aizhen1, JIA Shuxia1, CHEN Xuewen1   

  1. 1. Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China;
    2. University of Chinese Academy of Sciences, Beijing 100049, China;
    3. Greenhouse and Processing Crops Research Centre, Agriculture and Agri-Food Canada, Ontario, N0R 1G0, Canada
  • 收稿日期:2012-08-21 修回日期:2012-12-11 出版日期:2013-05-29 发布日期:2013-05-30
  • 通讯作者: LIANG Aizhen. E-mail: liangaizhen@neigae.ac.cn E-mail:liangaizhen@neigae.ac.cn
  • 基金资助:

    Under the auspices of National Natural Science Foundation of China (No. 31170483), Key Direction in Knowledge Innovation Programs of Chinese Academy of Sciences (No. KZCX2-EW-QN307), Foundation of Excellent Young Talents in Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences (No. C08Y13)

Effects of Tillage Management on Infiltration and Preferential Flow in a Black Soil, Northeast China

FAN Ruqin1,2, ZHANG Xiaoping1, YANG Xueming3, LIANG Aizhen1, JIA Shuxia1, CHEN Xuewen1   

  1. 1. Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China;
    2. University of Chinese Academy of Sciences, Beijing 100049, China;
    3. Greenhouse and Processing Crops Research Centre, Agriculture and Agri-Food Canada, Ontario, N0R 1G0, Canada
  • Received:2012-08-21 Revised:2012-12-11 Online:2013-05-29 Published:2013-05-30
  • Contact: LIANG Aizhen. E-mail: liangaizhen@neigae.ac.cn E-mail:liangaizhen@neigae.ac.cn
  • Supported by:

    Under the auspices of National Natural Science Foundation of China (No. 31170483), Key Direction in Knowledge Innovation Programs of Chinese Academy of Sciences (No. KZCX2-EW-QN307), Foundation of Excellent Young Talents in Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences (No. C08Y13)

摘要:

The impacts of no-tillage (NT) and moldboard plough (MP) managements on infiltration rate and preferential flow were characterized using a combined technique of double-ring device and dye tracer on a black soil (Mollisols) in Northeast China. The objective of this study is to evaluate how tillage practices enhance soil water infiltration and preferential flow in favor of soil erosion control in the study area. The steady infiltration rates under NT management are 1.6 and 2.1 times as high as those under MP management in the 6th and 8th years of the tillage management in place, while the infiltrated water amounts under NT management are 1.4 and 2.0 times as high as those under MP management, respectively. The depth of methylene blue penetrated into NT soil increases from 43 cm in the 6th year to 57 cm in the 8th year, which are 16 cm and 19 cm deeper than those in MP soil, respectively. The results of morphologic image show that more biological macro-pores occur in NT soil than in MP soil. These macro-pores play a key role in enhancing preferential flow in NT soil, which in turn promotes water infiltration through preferential pathways in NT soil. The results are helpful to policy-making in popularizing NT and have the implications for tillage management in regard to soil erosion control in black soil region of China.

关键词: no-tillage, moldboard plough, dye tracer, macro-pore, black soil, Northeast China

Abstract:

The impacts of no-tillage (NT) and moldboard plough (MP) managements on infiltration rate and preferential flow were characterized using a combined technique of double-ring device and dye tracer on a black soil (Mollisols) in Northeast China. The objective of this study is to evaluate how tillage practices enhance soil water infiltration and preferential flow in favor of soil erosion control in the study area. The steady infiltration rates under NT management are 1.6 and 2.1 times as high as those under MP management in the 6th and 8th years of the tillage management in place, while the infiltrated water amounts under NT management are 1.4 and 2.0 times as high as those under MP management, respectively. The depth of methylene blue penetrated into NT soil increases from 43 cm in the 6th year to 57 cm in the 8th year, which are 16 cm and 19 cm deeper than those in MP soil, respectively. The results of morphologic image show that more biological macro-pores occur in NT soil than in MP soil. These macro-pores play a key role in enhancing preferential flow in NT soil, which in turn promotes water infiltration through preferential pathways in NT soil. The results are helpful to policy-making in popularizing NT and have the implications for tillage management in regard to soil erosion control in black soil region of China.

Key words: no-tillage, moldboard plough, dye tracer, macro-pore, black soil, Northeast China