干旱区生态环境知识资源中心(Arid): 英罗港红树植物群落不同演替阶段植物元素分布及其与土壤肥力的关系

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	英罗港红树植物群落不同演替阶段植物元素分布及其与土壤肥力的关系
其他题名	Element distribution and its relationship with soil fertility in different succession stages of a mangrove community in yingluo bay, guangxi
	何斌 1; 温远光 1; 梁宏温 1; 李志先 1; 刘世荣 2
来源期刊	植物生态学报
ISSN	1005-264X
出版年	2002
卷号	26 期号:5 页码:518-524
中文摘要	根据广西英罗港红树植物群落的演替过程，研究了5个主要演替阶段红树植物群落优势种地上部分的7种元素（N、P、K、Ca、Mg、Na、Cl）含量、群落元素积累量及其与土壤肥力的关系。结果表明：1）红树植物不同器官元素含量大小为：N、P、K均为花果>叶>枚>皮>干，Cu为皮>枝、叶>花果>干，Mg为花果>叶>皮>枝>杆>干，Na、Cl为叶、化果>皮>枝>干；2）同一器官中各元素含量均以Cl、Na最多，其次是N、Ca、K,然后是Mg，最少是P；3）随着进展演替，红树植物群落优势种的N、P、K含量呈明显减少趋势，Ca、Na和Cl含量（除木榄（Brugurera gym-morrhiza）外）则呈现相反的趋势，而Mg含量缺乏明显的规律性；4）7种元素在群落里的积累量大小顺序为红海榄（Rhizopora stylosa）群落（4282.4kg·hm^-2）>木榄群落（2964.2kg·hm^-2）>秋茄(Kandelia candel）群落（2831.9kg·hm^-2）>酮花树（Aegceras cornicuaturn）群落(1342.0kg·hm^-2）>白骨壤（Avicennia marina）群落（747.1kg·hm^-2），其趋势是随着进展演替而增大；5）不同演替阶段红树植物群落优势种的N、P、K、Ca4种营养元素含量和群落元素总积累量和土壤肥力因素密切相关，可见，红树植物群落元素分布特征反映了红树植物对潮滩特殊生境的适应，而红树植物群落的演替过程能促进群落营养元素的生物积累。
英文摘要	The Yingluo Bay is located in Hepu county, Guangxi, China, and has an area of mangrove approx-imately 80 hm~2 in size. These mangrove communities belong to the estuarine mangrove vegetation type. These communities show distributional zones in the different inter tide levels. The vegetation type of mangrove com-munities distributing from the mean low tide, the mean intermediate tide to the mean high tide are the commu-nities accordingly with the dominant species (including Avkennia marina, Aegiceras corniculatum, Karidelia candel, Rhizophora stylosa, Brugukra gymmnhiza), Additionally, there are some transitional vegetation types in these dominant communities. All the communities above reflect the succession process of the man-grove. Based on the succession process of mangrove communities in the Yingluo Bay, the authors divided these communities into five main succession stages according to the two dominant aspects of the community: composi-tion and mean inter-tidal level. These communities include (named after the dominant species present): A. marina community, A corniculatum community, K. andel community, R. stylosa community, and B. gymnoirhiza community. The authors measured the biomass on the floor by on-the-spot survey and weighted means measure, and also measured the amount of accumulated elements in different mangrove communities. The content of seven elements (N, P, K, Ca, Mg, Na, Cl) in the five dominant species was also measured. Furthermore, the authors researched the relationships between element distribution in the mangrove communi-ties and soil fertility. The results showed the following: 1) The element content of different organs in the five mangrove dominant species was: for N, P, K flower and fruit > leaf > branch > bark > stem, Ca: bark > branch > leaf > flower and fruit > stem; for Mg: flower and fruit > leaf > bark > branch > stem; for Na, Cl: leaf or flower and fruit > bark > branch > stem. As for the coefficient of variation (CV) of the different element’ s content, the highest was K, lower were IN , P, Na, Cl, and the lowest were Ca, Mg. As for the CV in the mean content of the same element in different organs, the highest was bark, then stern, and the lowest were leaf, flower and fruit. As for the different elements contents in the same organs, the highest was Na and Cl, then N, Ca, K, then Mg, and the lowest was P. N was most significantly correlated with many other elements, P and K with fewer, and then Na and Cl the least. Ca and Mg were not correlated with other elements. Na and Cl elements were correlated at the 0.05 level in the stem, and at the 0.01 level in leaf, branch and bark. As for the nu-merous related elements pail’s in different organs, leaf, branch and bark have the most correlated elementpairs, and then branch. 3) The mean content order of N, P, and K in different mangrove species was A. marina > A. corniculatiim > K. candel > R. slylosa > B. gymnorrhiza, reflecting the gradual reduction of these elements with the succession process of mangrove communities and showing the stratification in these communities. The con-tent of N, P, and K in the lower stratum was higher than that of the upper stratum, while the Ca, Na, and Clcontent showed the reverse tendency (except for B. gymnorrhiza). The Mg content showed no evident pat-tern. 4) There were evident differences in Lhe amounts of the seven elements accumulated in the different suc-cessional stages of the mangrove communities. The order was as follows: R. stylosa community (4282.4 kg·hm~(-2)) > B. gymnorrhiza community (2 964.2 kg·hm~(-2)) > K. candel community (2 831.9 kg·hm~(-2)) > A. comiculaliun community (1 342.0 kg·hm~(-2)) > A marina community (747.1 kg·hm~(-2)). The incre-ment tendency increased with the succession process. As for the mean elements contenLs of the five dominant species in the mangrove communities and the corresponding soil fertility aspects (pH value, organic maLter, total N, total P, available N, available P, invertase, urease arid acid phosphatase), there was close correlation between the soil fertility aspects and the Mg, Na, and Cl content. The Ca content was positively correlated with the soil fertility aspects (except with the pH value in the soil), while the N, P, and K contents were negatively correlated with the soil fertility as- pects. Additionally, the N, P, K, and Ca contents of the dominant mangrove species in each different succes- sion stage and the accumulated amount of elements in mangrove were closely correlated with the soil fertility. As the above results showed, the element content characteristics of mangrove dominant species in different successional stages in Yingluo Bay not only reflected the biological characteristics of these dominant species, but also were profoundly affected by the habitat. As a result, these characteristics reflect adaptability to the special environment present in inter-tidal zones. Also, there were differences in the fertility uptake capacity of mangrove species. rFhe succession process of mangrove could promote its accumulation of nutrient elements.
中文关键词	英罗港 ; 红树植物群落 ; 演替阶段 ; 植物元素分布 ; 土壤肥力
英文关键词	mangrove community progressive succession elements distribution soil fertility
语种	中文
国家	中国
收录类别	CSCD
WOS类目	PLANT SCIENCES
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:1075368
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/203586
作者单位	1.广西大学林学院, 南宁, 广西 530001, 中国; 2.中国林业科学研究院森林生态环境与保护研究所, 北京 100091, 中国
推荐引用方式 GB/T 7714	何斌,温远光,梁宏温,等. 英罗港红树植物群落不同演替阶段植物元素分布及其与土壤肥力的关系[J],2002,26(5):518-524.
APA	何斌,温远光,梁宏温,李志先,&刘世荣.(2002).英罗港红树植物群落不同演替阶段植物元素分布及其与土壤肥力的关系.植物生态学报,26(5),518-524.
MLA	何斌,et al."英罗港红树植物群落不同演替阶段植物元素分布及其与土壤肥力的关系".植物生态学报 26.5(2002):518-524.