Abstract
To assess the overall vegetation changes and their ecological significance, following landscape evolution, plant composition and physical structures of the homegardens (woodlots and vegetation patches with hedgerow fence) and field boundaries were examined in the rural landscape of subtropical China in order to determine their ecological significance. Field surveys on landscape changes and plant composition were carried out in two typical villages in the Yangtze river plain. Analysis of landscape changes and plant composition showed that the rural landscape is diverse both in terms of types of elements and plant species. The vegetation types in the area have undergone frequent alterations by human beings following major changes of landscape management due to economic and social reforms. The plant diversity of the various vegetation types in the area is related to the duration of colonization of the vegetation type, the extent of disturbance by human beings, and the physical structure diversity of the vegetation type.In the discussion, the plant diversity and heterogeneity of the physical environment in any vegetation type is of importance for the ecological sustainability of the landscape.
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