[1]吴悦宏,朱晓武,肖泽鑫*,等.粤东地区3种红树植物生长对滩面高程的响应[J].江苏林业科技,2022,49(04):19-23.[doi:10.3969/j.issn.1001-7380.2022.04.004]
　Wu Yuehong,Zhu Xiaowu,Xiao Zexin,et al.Response of growth of three mangrove species to different tidal elevations in eastern Guangdong[J].Journal of Jiangsu Forestry Science &Technology,2022,49(04):19-23.[doi:10.3969/j.issn.1001-7380.2022.04.004]
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粤东地区3种红树植物生长对滩面高程的响应()
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《江苏林业科技》[ISSN:1001-7380/CN:32-1236/S]

卷:
第49卷
期数:
2022年04期
页码:
19-23
栏目:
试验研究
出版日期:
2022-08-31

文章信息/Info

Title:
Response of growth of three mangrove species to different tidal elevations in eastern Guangdong
文章编号:
1001-7380（2022）04-0019-05
作者:
吴悦宏1; 朱晓武1; 肖泽鑫1*; 陈文浩2; 费小睿2; 范镇贞1
1.汕头市林业科学研究所，广东 汕头 515041；
2.汕头市自然资源测绘院，广东 汕头 515047
Author(s):
Wu Yuehong1;  Zhu Xiaowu1;  Xiao Zexin1﹡;  Chen Wenhao2;  Fei Xiaorui2;  Fan Zhenzhen1
1. Shantou Forestry Research Institute, Shantou 515041, China；
2. Shantou Natural Resources Surveying and Mapping Institute, Shantou 515047, China
关键词:
红树林; 滩面高程; 生长; 叶片叶绿素SPAD值; 响应
Keywords:
Mangrove; Tidal elevation; Growth; Leaf chlorophyll SPAD value; Response
分类号:
Q948.113；S718.53
DOI:
10.3969/j.issn.1001-7380.2022.04.004
文献标志码:
A
摘要:
为了研究红树植物在粤东地区适宜生长的滩面高程，以桐花树、秋茄和木榄3个树种为研究对象，开展不同滩面高程（梯度分别为0—10，10—20，20—30，30—40，40—50，50—60 cm）下的造林试验，4 a后，分别统计各树种不同高程的存活率、生长（树高、地径和冠幅）及叶片叶绿素SPAD值。结果表明：（1）桐花树在0—10 cm无法生长，在10—20 cm生长较差，存活率较低。当滩面高程达到20 cm后，存活率大于30%，尤其在30—60 cm，保存率达到70%。在0—50 cm高程范围内，随着梯度的升高，树高生长先下降再增加，地径生长先增加后下降再增加，冠幅生长则逐渐增加。当高程达到50 cm，随着滩面高程的上升，树高生长和冠幅生长反而略微下降。叶片叶绿素SPAD值则随高程的上升逐渐增加；（2）秋茄在30 cm以下无法生长，在30—40 cm保存率较低。当高程达到40 cm，保存率大于30%，树高生长、地径生长、冠幅生长及叶片叶绿素SPAD值随着滩面高程的上升逐渐增大；（3）木榄在滩面高程30 cm以下无法生长，在30—60 cm保存率较低，但树高生长、地径生长、冠幅生长和叶片叶绿素SPAD值随着高程的上升逐渐增大；（4）3个树种的生长（存活率、树高、地径和冠幅）及叶片叶绿素含量等受滩面高程的影响，表现出一定的相关性。根据试验结果综合分析，3个树种适宜造林的滩面高程不同，桐花树适宜在20 cm以上，尤其在30 cm以上生长较好；秋茄适宜50 cm以上；木榄则在60 cm以下生长均较差。建议桐花树造林滩面高程不低于20 cm，秋茄种植高程不低于50 cm。
Abstract:
To learn the suitable tidal elevations of mangrove species growth in eastern Guangdong, we took Aegiceras corniculatum, Kandelia candel and Bruguiera gymnorhiza as research objects, different tidal elevations gradients (0—10，10—20，20—30，30—40，40—50，50—60 cm) were set to carry out their afforestation experiments. Four years later, conservation rate, leaf chlorophyll SPAD value and growth including tree height, ground diameter and crown width at different elevation were determined respectively. The results showed that: (1) A. corniculatum could not grow at 0—10 cm gradient, grew poorly and had a low conservation rate at 10—20 cm. When the tidal elevation reached 20 cm, the conservation rate could be more than 30%, especially at 30—60 cm, reaching 70%. With the elevation rising at 0—50 cm, the tree height growth showed the tendency decreasing at the beginning and increasing late, the ground diameter growth increased first and then decreased and again increased, and the crown width growth gradually increased. When 50 cm elevation reached, the tree height growth and crown width growth decreased slightly with the tidal elevation increase. The leaf chlorophyll SPAD value increased with the elevation rise; (2) K. candel could not grow below 30 cm elevation. At 30—40 cm, the conservation rate was low and the growth was inhibited. When the elevation reached more than 40 cm, the conservation rate could exceed 30%. And the growth in tree height, ground diameter, crown width, and leaf chlorophyll SPAD value gradually increased with the elevation increase; (3) B. gymnorhiza could not grow below 30 cm elevation either. At 30—60 cm, the low conservation rate and the inhibited growth presented. And the growth in tree height, ground diameter, crown width and chlorophyll SPAD value gradually increased with the elevation increase; (4) The growth and leaf chlorophyll contents of research objects were affected by the tidal elevation, showing a certain correlation. Comprehensive analysis revealed that 3 tree species could be acclimatized to the different tidal elevation, i.e. A. corniculatum suitable to grow above 20 cm, especially above 30 cm; K. candel to grow above 50 cm, but B. gymnorhiza poorly grown below 60 cm. It is commended that the planting elevation of A. corniculatum should not be less than 20 cm and that of K. candel should not be less than 50 cm.

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备注/Memo

备注/Memo:
收稿日期：2022-06-08;修回日期：2022-06-27
基金项目：广东省科技专项资金项目“粤东地区红树林资源调查研究”（210729106900480）
作者简介：吴悦宏（1974- ），男，广东汕头人，高级工程师，大学本科毕业。主要从事森林培育及森林生态研究。E-mail: zhuxw0831@163.com
*通信作者：肖泽鑫（1977- ），男，广东汕头人，副研究员，大学本科毕业。主要从事红树林恢复研究。E-mail: 411196796@qq.com
更新日期/Last Update: 2022-10-19