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Position: Home > Articles > Biodiversity Analysis on Repairing Models of Degraded Landscape in the Eco-fragile Areas of West China Bulletin of Soil and Water Conservation 2009,29 (5) 212-215+241

生态脆弱区退化景观修复模式生物多样性分析

作  者:
郝云庆;王金锡;朱万泽;杨军;王乐辉
单  位:
中国科学院成都山地灾害与环境研究所;四川省林业科学研究院南京大学国际地球系统科学研究所中国科学院;四川省林业科学研究院
关键词:
生态脆弱区;生物多样性;亚高山区;景观修复
摘  要:
九寨—黄龙世界自然遗产地位于我国西部典型的山地生态脆弱区。自2001年以来松潘县在退耕还林工程进行了不同树种配制模式的实践,共计营造了12个生态经济林模式。它们分别为:枸杞,沙棘,山桃+云杉,山杏+云杉,云杉,西蜀丁香+陇东海棠云,杉+阿根廷柳,云杉+青杨,阿根廷柳,阿根廷柳+青杨,青杨和山杏+阿根廷柳模式。通过对这12个模式群落与各层次物种多样性的分析比较,发现绝大多数模式木本层多样性并不高,而草本层物种数多为20种左右,香农威纳指数都达到2.0以上。大多数模式已具有可观的物种多样性,模式之间多样性也较大。物种多样性的提高有助于构建一个稳定、健康的系统,并为其进一步向着更高的演替阶段发展奠定了物质基础。
译  名:
Biodiversity Analysis on Repairing Models of Degraded Landscape in the Eco-fragile Areas of West China
作  者:
HAO Yun-qing1,2,WANG Jin-xi1,ZHU Wan-ze3,YANG Jun1,WANG Le-hui1(1.Sichuan Academy of Forestry,Chengdu,Sichuan 610081,China;2.International Institute for Earth System Science,Nanjing University,Nanjing,Jiangsu 210093,China;3.Institute of Mountain Hazard and Environment,Chinese Academy of Sciences,Chengdu,Sichuan 610041,China)
关键词:
eco-fragile area;biodiversity;subalpine region;landscape repairing
摘  要:
The World Natural Heritages,Jiuzaigou and Huanglong,are located in the eco-fragile areas of West China.Since 2001,12 repairing models of degraded landscape in the eco-fragile areas were implemented in Songpan County,i.e.,Lycium chinense,Hippophae rhamnoides,Amygdalus davidiana+ Picea asperata,Armeniaca sibirica+ P.asperata,P.asperata,Syringa komarowii+ Malus kansuensis,P.asperata+ Salix argentinensis,P.asperata+ Populus cathayana,S.argentinensis,S.argentinensis+ P.cathayana,P.cathayana,and A.sibirica+ S.argentinensis models.This paper analyzed both horizontal and vertical species diversity in the 12 models.Results showed there were generally poor species richness and diversity in woody layer.On the contrast,herb layer of most models possessed considerable diversity,along with about 20 species and Shannon—Weiner index over 2.0.Further,most models possessed sound species diversity,contributed by diversity in herb layers.Most models possessed sound species diversity indexes and diversity between models was also greater.With the developing of diversity,it is helpful to constructing a stable and healthy ecosystem and establishing a material foundation for developing to further stage.

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