[1]周丽丽,郑焰英,李树斌,等. 不同红树植物叶片元素重吸收特征[J].西北林学院学报,2022,37(3):51-56.[doi:10.3969/j.issn.1001-7461.2022.03.08]
　ZHOU Li-li,ZHENG Yan-ying,LI Shu-bin,et al. Leaf Nutrient Resorption Characteristics Among Mangrove Tree Species[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2022,37(3):51-56.[doi:10.3969/j.issn.1001-7461.2022.03.08]
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 不同红树植物叶片元素重吸收特征()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第37卷
期数:
2022年第3期
页码:
51-56
栏目:
出版日期:
2022-05-31

文章信息/Info

Title:
 Leaf Nutrient Resorption Characteristics Among Mangrove Tree Species
文章编号:
1001-7461(2022)03-0051-06
作者:
 周丽丽1; 3; 郑焰英1; 李树斌2; 3; 吴亚岚4; 郑茹萍2; 3; 潘辉1*
 (1.闽江学院 地理与海洋学院，福建 福州 350108；2.福建农林大学 林学院，福建 福州 350002；3.国家林业和草原局 杉木工程技术研究中心，福建 福州 350002；4.福州大学 环境与安全工程学院，福建 福州 350108)
Author(s):
 ZHOU Li-li1; 3; ZHENG Yan-ying1; LI Shu-bin2; 3; WU Ya-lan4; ZHENG Ru-ping2; 3; PAN Hui1*
 (1.College of Geography and Oceanography,Minjiang University,Fuzhou 350108,Fujian,China; 2.College of Forestry,Fujian Agriculture and Forestry University,Fuzhou 350002,Fujian,China; 3.Chinese Fir Engineering Technology Research Center of the National Forestry and Grassland Administration,Fuzhou 350002,Fujian,China; 4.College of Environment and Safety Engineering,Fuzhou University,Fuzhou 350108,Fujian,China)
关键词:
 ; 红树植物; 叶片; 养分含量; 养分内循环; 重吸收效率：相关关系
Keywords:
 ; mangrove tree species;  leaf;  nutrient concentration;  nutrient internal cycling;  nutrient resorption efficiency;  correlation
分类号:
S792.99
DOI:
10.3969/j.issn.1001-7461.2022.03.08
文献标志码:
A
摘要:
 为明确不同红树植物养分重吸收状况，以福建漳江口拒盐红树秋茄和木榄、泌盐红树白骨壤和桐花树为对象，测定成熟叶和衰老叶中N、P、K、Ca、Mg、Fe、Mn、Cu、Zn含量。结果表明，4种红树植物成熟叶（Zn除外）、衰老叶（Cu除外）养分含量差异显著（P<0.05），衰老叶N、P、K、Cu、Zn含量均低于成熟叶，为正转移，平均转移率分别为65.88%、38.35%、44.27%、35.78%和66.91%；衰老叶Mg、Fe、Mn（木榄除外）含量高于成熟叶，为负转移，平均转移率分别为-120.56%、-45.93%和-30.25%。泌盐红树（白骨壤和桐花树）N和P重吸收效率显著低于拒盐红树（秋茄和木榄）（P<0.05），而泌盐红树的K重吸收效率显著最高（P<0.05）。不同红树植物养分重吸收效率与其成熟叶养分含量呈正相关关系（Mg除外），与其衰老叶均呈负相关关系。综上可知，不同红树植物对不同养分的重吸收具有特异性，秋茄和木榄通过较高的N、P重吸收效率适应滨海的特殊生境，而白骨壤和桐花树则通过提高凋落物的N、P、Mg、Cu、Zn输入，对土壤养分的有效性作出正反馈。
Abstract:
 Nutrient resorption (NR) is a highly-efficient nutrient utilization strategy which develops during the long-term evolution of plants.To clarify the NR characteristics among different mangrove species,plants of salt excluders (Kandelia candel and Bruguiera gymnorrhiza) and salt secreters (Avicennia marina and Aegiceras corniculatum) occurring in Zhangjiang Estuary,Fujian Province,Eastern China were chosen as study objects.The concentrations of N,P,K,Ca,Mg,Fe,Mn,Cu,and Zn in mature and senescent leaves were measured.The results showed that the nutrients in mature (except for Zn) and in senescent leaves (except for Cu) were significantly different among all mangrove species (P<0.05).The N,P,K,Cu and Zn concentrations of senescent leaves were lower than those of mature leaves,with average positive NR efficiencies of 65.88% (N),38.35% (P),44.27% (K),35.78% (Cu) and 66.91% (Zn),respectively.The Mg,Fe,and Mn (except for B.gymnorrhiza) concentrations of senescent leaves were higher than those of mature leaves,with average negative NR efficiencies of -120.56%,-45.93%,and -30.25%,respectively.The N,P,Mg resorption efficiencies in salt-secreting mangroves (A.marina and A.corniculatum) were significantly lower than those in non-salt-secrete mangroves (K.candel and B.gymnorrhiza) (P<0.05),while K resorption efficiencies were significantly higher in salt-secreting mangroves (P<0.05).NR efficiencies among different mangroves were positively correlated with the corresponding nutrient concentrations in mature leaves (except for Mg),and negatively correlated with the corresponding nutrient concentrations in senescent leaves.In conclusion,different mangrove species have different nutrient resorption behaviors.K.candel and B.gymnorrhiza have higher N and P resorption efficiencies to adapt to the nutrient-limited coastal environment,whereas A.marina and A.corniculatum provide a positive input to soil nutrient availability via improving the litter nutrient input (N,P,Mg,Cu and Zn).

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备注/Memo

备注/Memo:
 收稿日期：2021-05-04修回日期：2021-06-29
基金项目：国家自然科学基金(31800532) ；福建省自然科学基金（2018J05059）；福建省林业科技项目（［2019］16号）。
第一作者：周丽丽，博士，副教授。研究方向：森林生态。E-mail：fjzhoulili@126.com
*通信作者：潘辉，博士，教授。研究方向：森林生态。E-mail：fjpanhui@126.com
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