川北防护林区岩土系统的物能流复映射特征

通过对四川盆地北部防护林区岩土系统研究，从物质、能量、信息流角度论证了岩土演化对防护林植物群落的综合效应。结果表明：风化岩体是岩土系统物能流信源体，主要反映为物源始态差异；土壤容库系统起中转筛检作用，反映地下馈供信息流与植被需求信息流的匹配程度不同；防护林植物群落是岩土系统的信宿终端，岩土系统物能流复映射特征对植物群落优劣态势起重要影响作用。

THE RE REFLECTION CHARACTERISTIC OF MATERIAL AND ENERGY FLOWS OF ROCK AND SOIL SYSTEM IN PROTECTIVE FOREST ZONE IN NORTHERN SICHUAN

This paper deals with the rock and soil system in the protective forest zone of northern Sichuan basin. From the view of material, energy and information, it demonstrates the comprehensive effects of rock and soil system on the plant community. The analysis shows that the weathering rock is the information source of material and energy flows, and mainly shows the original difference of material. The soil capacity system has transfering and screening effects, which display the different matching degree of supplied information and required information. The plant community of protective forests is the information recipient of rock and soil system. The superior and inferior trend of the plant community is affected by the re reflection characteristic of material and energy flows of rock and soil system.