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作 者:郝志强[1] 尹建道[1] 霍佳楠[1] 郝占刚 舒晓武 常文韬[3] 孙佳杰[1]
机构地区:[1]天津理工大学环境科学与安全工程学院,天津300191 [2]天津港东疆建设开发有限公司,天津300456 [3]河北工业大学管理学院,天津300130
出 处:《城市环境与城市生态》2010年第5期25-29,共5页Urban Environment & Urban Ecology
基 金:天津港东疆港区绿化工程技术研究项目(2008-6-30)资助
摘 要:筛选适生树种是盐碱地绿化工作的技术关键。天津市东疆港区的土壤是淤泥质盐渍土,在该区域绿化树种现场调查的基础上,依据树种的适生能力、生态效益和实际生长效果建立了综合评价多级指标体系。通过确定各指标因子的权重和评判标准,计算出各树种的综合指数,并依次划分为骨干树种、重要树种、辅助和补充树种以及不适宜树种4个级别,该综合评价多级指标体系为类似盐碱地绿化建设工程提供了实践和理论依据。Selecting suitable tree species is the technical key of greening in Salinealkaline fields. The soil in Dongjiang Port in Tianjin is muddy saline. On field investigations of greening tree species in this area, a multi-level index system for comprehensive evaluation was built according to their growing ability, ecological benefits and actual growth performance. Comprehension index of each species was calculated along with the determination of indices weight and assessing criteria. Greening trees were divided into 4 levels, including backbone species, important species, accessory and complementary species, and inadequate species. The results provided practical and theoretic basis for similar projects of Saline-alkaline greening. Furthermore, this comprehensive evaluation method had reasonable scientificity and objectivity. It could be applied in similar places.
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