黄河口滨岸潮滩不同表现型翅碱蓬K、Ca、Mg含量与累积的季节变化

草业学报 ›› 2010, Vol. 19 ›› Issue (3): 177-190.

黄河口滨岸潮滩不同表现型翅碱蓬K、Ca、Mg含量与累积的季节变化

牟晓杰^1,2,孙志高^1,3*,王玲玲^1,2,孙万龙⁴

1.中国科学院烟台海岸带研究所滨海湿地生态实验室, 山东烟台 264003;
2.中国科学院研究生院, 北京 100039;

3.厦门大学近海海洋环境科学国家重点实验室, 福建厦门 361005;
4.中国农业大学, 山东烟台 264670

收稿日期:2009-08-07 出版日期:2010-03-25 发布日期:2010-06-20
作者简介:牟晓杰(1982-),女,山东栖霞人,在读硕士。E-mail:xjmou@163.com
基金资助:
中国科学院知识创新工程重要方向项目(KZCX2-YW-223),中国科学院“优秀博士学位论文、院长奖获得者”科研启动基金项目(AJ0809BX-036),国家自然科学基金项目(40803023),厦门大学近海海洋环境科学国家重点实验室高级访问学者基金(MELRS0918),厦门大学滨海湿地生态系统教育部重点实验室基金(Cwel0903),中国科学院烟台海岸带所前沿领域项目(HJ0810BX-047)和山东省黄河三角洲生态环境重点实验室开放基金项目(2007KFJJ01)资助。

Seasonal changes of potassium, calcium, and magnesium and their accumulation in different phenotype Suaeda salsa communities in a tidal flat of the Yellow River estuary

MOU Xiao-jie^1,2, SUN Zhi-gao^1,3, WANG Ling-ling^1,2, SUN Wan-long⁴

1.Laboratory of Coastal Wetland Ecology, Yantai Institute of Coastal Zone Research, Chinese Academy of
Sciences, Yantai 264003, China;
2.Graduate University of Chinese Academy Sciences, Beijing 100039,
China;
3.State Key Laboratory of Marine Environmental Science, Xiamen University,
Xiamen 361005, China;
4.China Agricultural University, Yantai 264670, China

Received:2009-08-07 Online:2010-03-25 Published:2010-06-20

摘要/Abstract

摘要： 2008年5-11月,对黄河口滨岸潮滩2种表现型翅碱蓬的K、Ca、Mg含量与累积的季节变化进行了研究。结果表明,中潮滩翅碱蓬(JP1)和低潮滩翅碱蓬(JP2)不同器官生物量均具有明显季节动态,总体表现为JP1＞JP2,且均符合抛物线模型。二者枯落物量均呈递增变化,符合指数增长模型;JP1、JP2不同部分K、Ca、Mg含量的变化模式差异较大,其中K含量大多符合抛物线/线性模型,而Ca、Mg含量大多呈Gauss曲线变化;JP1、JP2不同时期各部分的K、Ca、Mg含量差异明显,其中JP1根、叶和枯落物的K、Ca、Mg含量大多高于JP2,而JP2茎的Ca、Mg含量则高于JP1;JP1、JP2不同部分K、Ca、Mg的相关性、储量及累积速率差异明显,茎、叶分别为JP1、JP2K的主要储库(43.02％±20.80％和48.03％±4.31％),而叶均是Ca、Mg的主要储库(40.38％±18.34％,50.58％±20.73％和62.96％±10.56％,58.02％±10.62％);JP1、JP2不同器官生物量及其K、Ca、Mg含量、储量、累积速率的变化及差异主要与其生态学特性、不同器官营养功能及所处生境的水盐状况有关。

Abstract: The seasonal changes of potassium (K), calcium (Ca), and magnesium (Mg) and their accumulation in different phenotypes of Suaeda salsa in the intertidal zone of the Yellow River estuary were studied from May to November 2008. The biomass of different organs of S. salsa in the middle (JP1) and low (JP2) tidal flats showed significant seasonal dynamics, and the values of JP1 were generally greater than those of JP2, according to a parabola model. The amounts of JP1 and JP2 bulk litter increased during the growing season, and could be described by an exponential growth model. The changing patterns of K, Ca, and Mg content in different parts of JP1 and JP2 were different: Changes of K content almost accorded with parabola or linear models, while changes of Ca and Mg contents generally accorded with Gauss curves. The K, Ca, and Mg contents in different parts of JP1 and JP2 at different time periods were significantly different, and the values in the root, leaf and litter of JP1 were much greater than those of JP2, while the Ca, Mg contents in the stem of JP2 were much greater than those of JP1. In addition, the correlations, storage, and accumulation rates of K, Ca, and Mg in different plant parts were also significantly different. In general, the stem and leaf were the main K storage sites, providing 43.02%±20.80% of total storage in JP1 and 48.03%±4.31% in JP2. The leaf was the main storage site for Ca and Mg, providing 40.38%±18.34% and 50.58%±20.73% of the total storage in JP1 and 62.96%±10.56% and 58.02%±10.62% in JP2. Further studies indicated that the differences of biomass, nutrient (K, Ca, Mg) content, storage and accumulation rate in different plant parts between JP1 and JP2 were mainly due to their ecological characteristics, nutrient function of the different organs, and the water or salinity status in the S. salsa habitat.

中图分类号:

S545
Q945.12

牟晓杰,孙志高,王玲玲,孙万龙. 黄河口滨岸潮滩不同表现型翅碱蓬K、Ca、Mg含量与累积的季节变化[J]. 草业学报, 2010, 19(3): 177-190.

MOU Xiao-jie, SUN Zhi-gao, WANG Ling-ling, SUN Wan-long. Seasonal changes of potassium, calcium, and magnesium and their accumulation in different phenotype Suaeda salsa communities in a tidal flat of the Yellow River estuary[J]. Acta Prataculturae Sinica, 2010, 19(3): 177-190.

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