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Journal of Desert Research ›› 2018, Vol. 38 ›› Issue (6): 1119-1135.DOI: 10.7522/j.issn.1000-694X.2018.00065

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Introduction of Eco-hydrological Research and Auto-simulating and Monitoring System of Water Balance in Desert Regions in the Northern China

Zhang Zhishan, Li Xinrong, Zhao Yang, Zhang Yafeng, Yang Haotian, Hu Rui   

  1. Shapotou Desert Research and Experiment Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
  • Received:2018-03-20 Revised:2018-05-30 Online:2018-11-20 Published:2018-12-05

Abstract: Funded by the project of key scientific and technological infrastructure construction of field stations network of Chinese Academy of Sciences, the auto-simulating and monitoring system of water balance in desert regions in the northern China-lysimeter group, based on 36 large weighting lysimeters, were building in Shapotou Desert Research and Experiment Station. The paper introduced the scientific target, construction idea and contents, and anticipated research direction based on the lysimeter group. The lysimeter group is composed of the large weighting lysimeters, various types of probes, the moving greenhouse and precipitation simulators, has characterized by integration and uniqueness. The platform can(1) automatically simulate and control precipitation intensity and ground water table, and quantify plant water sources;(2) automatically monitor evapotranspiration, plant transpiration, soil water leakage, and moistures, temperatures and conductivities in soil profile as well;and(3) periodically be investigated plant growth and collected soil solution. The establishment of platform will uplift our research capabilities of multi-scale knowledges on ecological and hydrological processes in desert regions of the northern China, and the mechanisms of ecohydrology and environmental stress physiological ecology. It will answer the key scientific issues in the prevention and control of desertification in China, such as soil water carrying capacity of vegetation and ecohydrological threshold of the stability of sand-binding revegetation in different climatic desert zones. The advances of eco-hydrological research in the Shapotou statotion was also introduced.

Key words: desert regions, lysimeter group, simulation experiment, ecohydrology, physiological ecology

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