生物节水及其研究的若干方面

Several Aspects of Research on Biological Water Saving in Agriculture

生物节水是通过减少作物生命过程中无效耗水,开发植物自身的节水潜力,相对于其他的节水措施,节水潜力更大。因此,生物节水研究越来越受到人们的重视,国内的学者已提出生物节水的概念,并逐步完善其理论体系。生物节水技术涵括与提高作物自身水分利用效率相关的多个方面,如有限灌溉、化学调控、水肥耦合、分子生物技术和适水种植等,这些节水技术已有一定的理论基础,并在实际中推广应用。

The concept of Biowatersaving emphasizes heightening water use efficiency by exploiting physiological potentiality of plant itself Researches about biowatersaving include the response mechanism of crop to water deficit, limited irrigation, chemical regulation methods, coupling of water and fertilizer, molecular biotechnology, and adjusting cropping system, and so on. Progresses of these aspects of researches, including their theories, application system studies and experimental results were expatiated in this paper. The relationship between biowatersaving and some other hot issues of water sciences was also analyzed, and finally, the prospect of biowatersaving study in the future was brought up.