Study On Bioecological Characteristics Of Prunus Armeniaca Var.ansu & Ziziphus Jujuba Var.spinosa

The dissertation focuses on bio-ecological characteristics of Primus armeniaca var.ansu & Ziziphus jujuba var.spinosa, one of important revegetation engineering plants. The studies primarily deal with five contents, including the germination technology of seeds, determination of wilting moisture, root system distribution and root quantity, the group falls the structure characteristic and biodiversity composition and the group falls the stability, in order to provide theoretic evidence and technical support for extension activities in revegetation engineering projects.The seeds have comparatively deep dormancy characteristic, and the epicarp is the main reason. If the seeds are dipped in oil of vitriol or hot water, it will enhance the rate of germination.The Prunus armeniaca var.ansu & Ziziphus jujuba var.spinosa have powerful drought resisting capability, wilting moisture of annual replanted P.armeniaca of pot culture in productive phase is 9.546 %, wilting moisture of biennial replanted P.armeniaca is 8.997%, wilting moisture of annual Z. jujube is 6.468%, the wilting moisture of annual V. negundo is 7.678%, which is far lower than other revegetation engineering plants,such as Ailanthus altissima, Prunus davidiana , Hypophae rhamnaides and Periploca sepium.The floristics of Prunus armeniaca var.ansu & Ziziphus jujuba var.spinosa shrub are fewer, and Prunus armeniaca var.ansu is not the dominant sociales,but Ziziphus jujuba var.spinosa is the dominant sociales, and associated species are Lespedeza davurica (Laxm. ) Schindl, Ulmus macrocarpa Hance, and Ailanthus altissima Swingle.