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[1]YE Min-sheng,WU Bin,GUAN Wen-bin,et al.Plant Community Stability in the Upper Reaches of Minjiang River[J].Research of Soil and Water Conservation,2009,16(01):259-263.

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Plant Community Stability in the Upper Reaches of Minjiang River

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 16 Number of periods: 2009 01 Page number: 259-263 Column: Public date: 2009-02-20

Title:: Plant Community Stability in the Upper Reaches of Minjiang River

Author(s):: YE Min-sheng^1,2, WU Bin², GUAN Wen-bin³, MA Ke-ming⁴, LIU Guo-hua⁴, ZHANG Yu-qing²; 1. Qinghai Engineering Consulting Center, Xi’ning 810001, China;
2. College of Soil and Water Conservation of Beijing Forestry University, Key Lab. of Soil and Water Conservation and Desertification Combating, Ministry of Education, Beijing 100083, China;
3. College of Nature Conservation of Beijing Forestry University, Beijing 100083, China

Keywords:: plant communities; communities stability; analytical hierarchy process(AHP); index system; the upper reaches of Minjiang River

CLC:: Q145.2;S718.54

DOI:: -

Abstract:: The plant community stability in the upper reaches of Minjiang River is evaluated using the methods of qualitative analysis and quantitative analysis. The index system was developed combining quantitative character indices reflecting vegetation stability, such as vegetation coverage, diversity, complexity and degree of succession with external environmental factors such as climate, topography and soil character, hence supplementing the insufficiency that previous researches on vegetation stability assessment take the only vegetation character into account. The weighting values of the relative importance of the indices are established by using the analytic hierarchy process (AHP), and the stability of plant communities are computed by using the synthesized index method.The results indicate: the plant formations of origin region, form. Picea asperata, form. Salix spp., form. Sibiraea angustata, form. Abies faxoniana, form. Spiraea spp. have higher stability, while Hippophae rhamnoides and form. Berberis amurensis have lower one. Form. Imperata cylindrical and form. Imperata cylindrica have a higher stability, form. Kobresia spp.and form. Sub-alpine have lower one. In the plant formations of the arid valley region, form. Spiraea spp, form. Daphne spp., form. Onosma farrerii, form. Bauhinia faberi,Sorphora vrcifolia, form. Caryopteris spp., form. Quercus cocciferoides have a higher stability, while form. Leptodermis purdom, form. Ajania breviloba and form. Ceratoides arborescens have lower one.

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