关键词: 水力结构, 参数, 木本植物

Abstract: The evaluation of ecological models involves two aspects of work: one is to evaluate the truth of a model, the another evaluate the value of a model. For these sakes, the relationships between subject and object, subjectivity and objectivity, the whole and the parts, human and the nature must be correctly dealt with in the research of ecological models.

Key words: Hydraulic architecture, Parameter, Woody plants