Studies of Distribution Pattern of Flora of Ecological and Economic Type of Protecting Forest Stands in the Huangtang Small Watershed

Abstract

Abstract: Quality background data of 98 subcompartments were obtained by investigation in the Huangtang small watershed in the hilly areas of the centre of Hunan. The main factors affecting water and soil loss in the subcompartments were defined with the Quantized Theory(I).According to these factors, five ecological environment types were gained by means of the blugred assemblement.The distribution pattern of flora of the ecological and economic type of protecting forest stand was analysed on the basis of the ecological background values of each type.

Key words: stable isotope, collembolan, food source, trophic level.

Yuan Zhengke, Zhou Gang. Studies of Distribution Pattern of Flora of Ecological and Economic Type of Protecting Forest Stands in the Huangtang Small Watershed[J]. cje, 1998, (6): 7-13.

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Studies of Distribution Pattern of Flora of Ecological and Economic Type of Protecting Forest Stands in the Huangtang Small Watershed

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