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湘西北小流域植被恢复综合效应评价(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2013年02期
Page:
71-77
Column:
研究论文
publishdate:
2013-03-31

Article Info:/Info

Title:
Integrative effect evaluations on vegetation restoration patterns based on soil vegetation system in watershed, northwest Hunan province
Author(s):
QI Lianghua1ZHANG Xudong2
1. International Center for Bamboo and Rattan, Beijing 100102, China;
2. Research Institute of Forestry, CAF, Beijing 100091, China
Keywords:
soil vegetation system(SVS) vegetation restoration effect gray incidence analysis northwest Hunan province
Classification number :
S718.57
DOI:
10.3969/j.issn.1000-2006.2013.02.013
Document Code:
A
Abstract:
Based upon the case of Nverzhai watershed in northwest Hunan, integrative effects of seven typical vegetation restoration patterns had been studied from the scale of soil vegetation system(SVS)in this paper, which included P. massoniana natural forest(Ⅰ), C. lanceolata plantation(Ⅱ), E. ulmoides plantation(Ⅲ), V. fordii plantation(Ⅳ), M. pingii secondary forest(Ⅴ), P. edulis-C. lanceolata mixed forest(Ⅵ), wasteland-shrub(Ⅶ). Firstly, soil health evaluation system had been found which contained 60 indexes belonging to vegetation subsystem, soil subsystem and topographical factors. Secondly, the gray incidence ordinations of vegetation restoration effects on vegetation sub-system, soil sub-system and soil vegetation system were Ⅴ>Ⅱ>Ⅰ>Ⅳ>Ⅵ>Ⅲ>Ⅶ, Ⅴ>Ⅵ>Ⅱ>Ⅶ>Ⅳ>Ⅲ>Ⅰ and Ⅴ>Ⅱ>Ⅵ>Ⅰ>Ⅳ>Ⅲ>Ⅶ respectively, which proved that pattern Ⅴ was the best and the pattern Ⅶ was the worst. Finally, through the gray incidence arrangement of evaluation indexes, Shannon-Weiner index, capillary porosity, organic matter, sucrase activity had the closest relationship with soil health respectively in vegetation characteristics, soil physical, chemical and biological properties. The contribution rate regularity of topographical factors affecting vegetation restoration was slope position, elevation slope degree, slope direction.

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Last Update: 2013-03-31