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| 银叶金合欢在风景林改造中的应用 |
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唐洪辉,赵庆,杨洋,许东先,严俊,张梅兰,梁卫芳
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广东省森林培育与保护利用重点实验室/广东省林业科学研究院,广东省森林培育与保护利用重点实验室/广东省林业科学研究院,广东省森林培育与保护利用重点实验室/广东省林业科学研究院,广东省森林培育与保护利用重点实验室/广东省林业科学研究院,广东省森林培育与保护利用重点实验室/广东省林业科学研究院,南雄市林业科学研究所,高明区林业科学研究所
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| 摘要: |
| 为更好发挥银叶金合欢(Acacia podalyriifolia) 在广东省低效生态公益林森林景观的提升作用， 应用该树种在韶关、广州、珠海市3 个不同纬度区域和马尾松林Pinus massoniana、相思林、尾叶桉林 Eucalyptus urophylla、黄土裸地边坡 4 种不同林型中进行森林景观改造试验，结果表明：（1）适用于 3 个 不同纬度区域和 4 种不同林型风景林改造；（2）1 a 生苗高、地径和冠幅生长指标和苗木开花结实比例随 纬度降低呈增长趋势，其中冠幅生长指标差异达到显著水平（P<0.05），苗高、地径和冠幅生长指标和开 花结实比例与纬度区域内年平均气温、年降雨量、最低月平均气温成正相关，并与冠幅生长指标达到显 著正相关（P<0.05）；（ 3）4 种不同林型风景林改造的银叶金合欢，其 1 a 生苗木树高、地径和冠幅生长指 标，呈相思林> 马尾松林> 尾叶桉林> 黄土裸地边坡的生长趋势，并均达到极显著差异水平（P<0.01）， 而开花结实的苗木所占比例则呈马尾松林 > 相思林 > 尾叶桉林 > 黄土裸地边坡；1 a 生银叶金合欢苗木树 高、地径、冠幅生长与林型土壤中的自然含水量、田间持水量、全磷、全钾、有效磷达到极显著正相关 （P<0.01），与土壤容重、土壤酸碱度、速效钾则达到显著负相关（P<0.05）。 |
| 关键词: 银叶金合欢 林型 生长指标 相关性 |
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| 基金项目:引进国际先进林业科学技术项目(2015-4-06)资助；林业公益性行业科研专项经费(201404301)资助。 |
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| Application of Acacia podalyriifolia in Scenic Forests Treatment |
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TANG Hong-hui,Zhao Qing,Yang Yang,Xu Dongxian,Yan Jun,Zhang Meilan and Liang Weifang
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Guangdong Academy of Forestry,Guangdong Academy of Forestry,Guangdong Academy of Forestry,Guangdong Academy of Forestry,Guangdong Academy of Forestry,anxiong Institute of Forestry Science,Goaming Institute of Forestry Science
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| Abstract: |
| In order to test effect of Acacia podalyriifolia on inef?cient ecological forest, it was planted in three different localities (Shaoguan City, Guangzhou City and Zhuhai City), as well as in four different forest types (Pinus massoniana plantation, Acacia plantation, Eucalyptus urophylla plantation and bare fallow), the results showed that: ① Acacia podalyriifolia were suitable for three different latitudes and four different forest types. ② 1-year seedling height, ground diameter, crown diameter and amounts of ?owering and fruiting ratio showed an increasing trend with decreasing latitude, of which crown diameters growth showed significant difference (P<0.05). Seedling height, ground diameter, crown diameter and amounts of ?owers and fruits ratio were positively related to annual average temperature, annual precipitation, monthly average temperature, of which crown diameters growth showed positive significant difference (P<0.05). ③ In four different forest types, growth indecies (seedling height, ground diameter and crown diameter) showed the trends that Acacia plantation>P. massoniana plantation > Eucalypt plantation > bare fallow, all the differences were significant (P<0.01), while amounts of flowering and fruiting individuals showed P. massoniana plantation > Acacia plantation> Eucalypt plantation > bare fallow. 1-year seedling height, ground diameter, crown diameter were positively significant correlated to water content, water capacity, phosphorus content, potassium content and effective phosphorus (P<0.01), however, they were negatively signi?cant correlated to soil bulk density, pH and available potassium (P<0.05). |
| Key words: Acacia podalyriifolia latitude forest type grow index correlation |
