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| 不同立地条件下东方杉等沿海防护林树种的生长生态特性研究 | |
| 引用本文： | 孔强,陈秋夏,吴良文,郑坚,王金旺,林雪锋.不同立地条件下东方杉等沿海防护林树种的生长生态特性研究[J].中国农学通报,2011,27(28):40-46. |
| 作者姓名： | 孔强 陈秋夏 吴良文 郑坚 王金旺 林雪锋 |
| 作者单位： | 1. 乐清市林业局,浙江乐清,325600 2. 浙江省亚热带作物研究所,浙江温州,325005 3. 龙湾区林业局,浙江龙湾,325024 4. 台州市林业局,浙江台州,317000 |
| 基金项目： | 浙江省农科院科技创新能力提升工程项目"滨海耐盐碱树种筛选、评价及应用与示范" |
| 摘 要： | 为了筛选出适宜浙南沿海盐碱地和潮滩盐土的树种，笔者进行耐盐、抗风树种的广泛收集、引进和区域试验，结果表明：沿海土壤条件复杂，新围垦海涂的土壤盐度随土层加深逐渐加大；1‰~3‰盐度下候选树种36个，3‰~5‰盐度下候选树种28个，5‰~8‰盐度下候选树种16个；无柄小叶榕、东方杉等19个树种表现为具有较强的抗风性，且随林木年龄的增长，风倒率下降；不同龄级防护林树种的冠径/树高的比值在0.45~1.13之间，以无柄小叶榕、大叶黄杨、夹竹桃最高，夹竹桃、大叶黄杨等相对冠长值大，需与其他树种配合才能发挥较好的防护作用；几个高抗性树种的高生长速率排序为：邓桉（1.18 cm/a）＞木麻黄501（1.16 cm/a）＞东方杉（1.08 cm/a）＞无柄小叶榕（1.07 cm/a）＞乌桕（0.92 cm/a）；径生长速率排序为：无柄小叶榕（1.58 cm/a）＞邓桉（1.35 cm/a）＞木麻黄501（1.15 cm/a）＞东方杉（1.06 cm/a）＞乌桕（0.93 cm/a）。 |
| 关 键 词： | 不同立地 防护林树种 生长 生态特性 |
| 收稿时间： | 2011/5/16 0:00:00 |
| 修稿时间： | 2011/6/23 0:00:00 |
Study on Ecological Characteristics of Growth of Taxodium mucronatum×Cryptomeria fortunei etc. Coastal Shelterbelt Species in Different Site Conditions |
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| Kong Qiang,Chen Qiuxia,Wu Liangwen,Zheng Jian,Wang Jinwang,Lin Xuefeng.Study on Ecological Characteristics of Growth of Taxodium mucronatum×Cryptomeria fortunei etc. Coastal Shelterbelt Species in Different Site Conditions[J].Chinese Agricultural Science Bulletin,2011,27(28):40-46. | |
| Authors: | Kong Qiang Chen Qiuxia Wu Liangwen Zheng Jian Wang Jinwang Lin Xuefeng |
| Institution: | Kong Qiang 1,Chen Qiuxia 2,Wu Liangwen 3,Zheng Jian 2,Wang Jinwang 2,Lin Xuefeng 4(1 Queqing Forestry Bureau of Zhejiang Province,Queqing Zhejiang 325600,2 Zhejiang Institute of Subtropical Crops,Wenzhou Zhejiang 325005,3 Longwan Forestry Bureau of Zhejiang Province,Longwan Zhejiang 325024,4 Taizhou Forestry Bureau of Zhejiang Province,Taizhou Zhejiang 317000) |
| Abstract: | In order to select species which were suitable for being planted in saline land and tidal flat in the southern coast of Zhejiang Province,the author extensively collected and introduced species which had salt tolerance and wind resistance,conducted regional test.The results showed that：soil conditions along the coast were complex,in new reclaimed coastal land,soil salinity increased gradually with depth;1 ‰-3 ‰ salinity of 36 candidate species,3 ‰-5 ‰ salinity of 28 candidate species,5 ‰-8 ‰ salinity of 16 candidate species;Ficus concinna var.subsessilis,Taxodium mucronatum×Cryptomeria fortunei etc.19 species showed strong wind resistance,with trees grew older,the rate dropped down that trees were blew down by the wind;crown diameter/height ratio of shelterbelt species of different age classes was between 0.45-1.13,Ficus concinna var.subsessilis,Buxus megistophylla,Nerium oleander were the highest,relative crown length values of Nerium oleander,Buxus megistophylla were more,must be planted with other species,and the protective effect could play better;the annual growth rhythm of several high resistance species showed,the order from high to low was：Eucalyptus dunnii（1.18 cm/a） Casuarina equisetifolia 501（1.16 cm/a） Taxodium mucronatum×Cryptomeria fortunei（1.08 cm/a） Ficus concinna var.subsessili（1.07 cm/a） Sapium sebiferum s（0.92 cm/a）.And the diameter growth rate was：Ficus concinna var.subsessilli（1.58 cm/a） Eucalyptus dunnii（1.35 cm/a） Casuarina equisetifolia 501（1.15 cm/a） Taxodium mucronatum×Cryptomeria fortunei（1.06 cm/a） Sapium sebiferums（0.93 cm/a）. |
| Keywords: | different site conditions shelterbelt species growth ecological characteristics |
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