Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2020, Vol. 36 ›› Issue (20): 127-135.doi: 10.11924/j.issn.1000-6850.casb20190500201

Special Issue: 现代农业发展与乡村振兴

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Lysimeter in Agricultural Scientific Research: Application Status and Development Trend

She Yingjun1,2,3, Qi Xuebin1,3(), Han Yang1,2,3, Bai Fangfang1,2,3   

  1. 1Farmland Irrigation Research Institute, Chinese Academy of Agricultural Sciences, Xinxiang Henan 453002
    2Graduate School of Chinese Academy of Agricultural Sciences, Beijing 100081
    3Key Laboratory of High-efficient and Safe Utilization of Agricultural Water Resources, Chinese Academy of Agricultural Sciences, Xinxiang Henan 453002
  • Received:2019-05-27 Revised:2019-07-25 Online:2020-07-15 Published:2020-07-20
  • Contact: Qi Xuebin E-mail:qxb6301@sina.cn

Abstract:

The lysimeter has a great significance to the study of farmland water circulation. The objective of the study is to clarify the application status and the developmental trend of lysimeter, and better apply it to agricultural science research. The authors systematically review the development of lysimeter in China in recent 20 years, and summarize the measuring principle and classification of lysimeter, the development of manufacturing technology of the large-scale weighing lysimeter and micro-lysimeter, and the application of lysimeter in studying the evapotranspiration of crops, groundwater utilization in shallow groundwater areas, condensate water in arid and semi-arid areas, etc. It is considered that the lysimeter should be oriented to the needs of network information development, to achieve network terminal control, online communication and network information sharing and other targets; the observation task and long-term application should be considered comprehensively, and the station (group) development should be combined with other instruments, and the environmental effect should be considered in the meantime; the regional reference standards of micro-lysimeter should be formulated by referring to the soil conditions, hydrology and meteorology of the research area, rather than the large-scale industrial norms; great importance should be attached to exploring the mechanism and application of water transport in all interfaces of the groundwater-soil-plant-atmosphere continuum; and the supporting role of lysimeter should be considered in basic research of disciplines and industries, to expand the scope of research objects.

Key words: Lysimeter, evapotranspiration, groundwater, condensate water, crop

CLC Number: