哈尔滨城郊绿化树种的选择查询系统

以哈尔滨城郊林种为研究目标,将樟子松(Pinus sylvestris var．mongolica)、白桦(Betula platyphylla)、糖槭(Acer negundo)、紫丁香(Syringa oblata)等49种绿化树种的特征、生态习性、功能要求3大因子中的生长类型、光照、树冠形状、固碳释氧能力等31项查询指标及科、属、拉丁名、花期等12项辅助指标作为研究对象,运用Mi- crosoft Access建立数据库,采用Visual Basic作为开发语言,建立了树种的选择查询系统,为哈尔滨城郊选择理想树种提供了科学的依据。

Selective Inquiry System of Tree Species for Afforesting in Harbin Suburban

A selective inquiry system for tree species was established using 49 tree species for afforesting in Harbin suburban as research targets, including Pinus sylvestris var. mongolica, Betula platyphylla, Acer negundo and Syringa oblata, etc. Microsoft Access was used for database establishment and Visual Basic for developmental language. The system comprises three main indexes of tree characteristic, ecological habit and function, involving thirty-one inquiry indexes for growth type, light, crown shape, oxygen-releasing capacity, and twelve secondary indexes for family, genus, Latin name and florescence. It can provide a scientific basis for the selection of ideal tree species in Harbin.