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生态学杂志 ›› 1994, Vol. ›› Issue (1): 60-63.

• 研究报告 • 上一篇    下一篇

PV技术的计算机处理及其在树木水分关系研究中的应用

刘建伟, 刘雅荣, 王世绩   

  1. 中国林业科学研究院林业研究所
  • 收稿日期:1992-08-27 修回日期:1992-12-30 出版日期:1994-02-10

Computer Processing of PV Curve Analysis and Its Application in the Research of Woody Plant-Water Relations

Liu Jiangwei, Liu Yarong, Wang Shiji   

  1. Research Institute of Forestry, Chinese Academy of Forestry Sciences, Beijing 100091
  • Received:1992-08-27 Revised:1992-12-30 Online:1994-02-10

关键词: 滇池富磷区, 解磷细菌, 趋化性, 系统多样性

Abstract: Based on the mathematic formularization of PVcurve,it's shown that PV curve is linear whenpressure p=0.and nonlinear when p>0.At the same time,the new analysis by computer(Schulter,1988)was introduced and applied to Populus simonii data processing.The results show that at the saturated state leaf osmotic potential is 1.0512MPa,elastic modulus 1.7MPa;and at the turgor loss point,the relative water content(RWC),osmotic potential and elastic modulus are 83.5%, 1.3478MPa and 0.17MPa ,respectively,In the analysis modification,the statistic probability is 0.01 and R2reaches to 0.991. In addition,six kinds of figures of PV curves explain in detail the water relation of this woody plant.

Key words: phosphorous-rich area around Dianchi Lake, phosphate-solubilizing bacteria, chemotaxis, phylogenetic diversity.