湿地综合分类研究:Ⅱ.模型

在前文［１］提出的湿地综合分类方法的基础上，进一步探讨用状态变量描述湿地状态特征和动力特征的途径。重点讨论建立反映湿地状态变量间制约关系的湿地动力模型。这一工作是湿地综合分类的主要目的所在，是综合分类研究的自然延伸，同时也是实现对湿地系统定量描述的有益尝试。

COMPREHENSIVE CLASSIFICATTON FOR WETLANDS Ⅱ. MODELLING DESCRIPTION

Based on the wetland classification systems presented in the companion paper, typical mathematical models are further developed for wetlands. Special attentions are paid to the series of hydrological models, including surface runoff mo delling, hydrodynamic modelling, water quality modelling, sediment transport mo delling, etc. Secondly, the simple relationship among the models as well as that between hydrological models and ecological models are discussed. According to the analysis stated in this paper, various wetland classification indexes characterized by dynamic behaviours physically, chemically or biologically could be quantitatively des cribed by the given mathematical models. It is indicated that the comprehensive classification system for wetlands allow for feasible introduction of wetland models, but the complete coupling of all the models is still not possible in the present stage. Thus, simple causality analysis becomes very necessary in the study of wetland mo delling.