上海沿海防护林树种适应性评价

Adaptability evaluation of shelter-forest trees in Shanghai coastal area

以上海市主要沿海防护林树种为对象,调查了2年生林分32个主要造林树种的适应性,建立涵盖生长适应性、抗逆性、景观价值等多因子的综合评价指标,采用综合评价法,对该区域防护林树种进行了评价筛选。结果表明:试验树种分为4类,表现良好的树种4种,表现尚好的树种5种,表现一般的树种5种,不适宜树种18种。在水盐协同胁迫逆境下,推荐黄连木、侧柏、乌桕、中山杉、弗吉尼亚栎、墨西哥落羽杉、红叶椿、美国皂荚8个乔木树种,胡颓子和海滨木槿2个灌木树种,以期为上海市沿海防护林体系建设提供适宜的树种资源。

The paper investigated the adaptabilities of thirty-two major shelter-forest trees in Shanghai coastal area, including growth adaptability, resistance capacity and landscape and so on. Meanwhile, the tested trees were evaluated and selected under water and salt stresses by the comprehensive evaluation method. The results showed that thirty-two tree species were divided into four adaptation types： four species showed excellent adaptation, five species showed good adaptation, five species showed common adaptation, and 18 specie showed poor adaptation. Based on the above comprehensive evaluation result, the following tens species with water-salt resistant were recommended as appropriate shelter-forest trees in Shanghai coastal area, which are eight arbors including Pistacia chinensis Bunge, Platycladus orientalis （L.） Franco, Sapium sebiferum （L.） Roxb., Taxodium ascendens×T.mucronatum, Quercus virginiana, T.mucronatum Tenore, Ailanthus altissima Swingle v., Gleditsia triacanthos L., and two shrubs including Elaeagnus pungens Thunb.and Hibiscus hamabo.