黄河三角洲不同水位梯度下芦苇植被生态特征及其与环境因子相关关系

生态学杂志

黄河三角洲不同水位梯度下芦苇植被生态特征及其与环境因子相关关系

管博^1,2,栗云召¹,夏江宝²,董洪芳³,吕振波⁴,于君宝^1**

(¹中国科学院海岸带环境过程与生态修复重点实验室(烟台海岸带研究所)，山东烟台 264003； ²山东省黄河三角洲生态环境重点实验室(滨州学院)，山东滨州 256603； ³山东省黄河三角洲可持续发展研究院管理中心，山东东营 257091； ^4山东省海洋生态修复重点实验室(山东省海洋资源与环境研究院)，山东烟台 264006)

出版日期:2014-10-10 发布日期:2014-10-10

Ecological characteristics of Phragmites australis vegetation at different water table levels and their relation to environmental factors in the Yellow River Delta.

GUAN Bo^1,2, LI Yun-zhao¹, XIA Jiang-bao², DONG Hong-fang³, LU Zhen-bo⁴, YU Jun-bao^1**

(¹Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, Shandong, China; ² Key Laboratory for EcoEnvironmental Sciences in Yellow River Delta, Binzhou University, Binzhou 256603, Shandong, China; ^3 The Administration Center of the Yellow River Delta Sustainable Development Institute of Shandong Province, Dongying 257091, Shandong, China; ⁴ Shandong Key Laboratory of Marine Ecological Restoration, Shandong Marine Fisheries Research Institute, Yantai 264006, Shangdong, China)

Online:2014-10-10 Published:2014-10-10

摘要/Abstract

摘要：

对黄河三角洲滨海湿地不同水位条件下芦苇植被生态特征进行动态调查，并分析其与土壤理化性质的相关关系。结果表明：芦苇湿地土壤电导率随水位梯度变化差异显著，长期水淹的芦苇区土壤电导率最低；在不同水位梯度下，芦苇生态特征表现出较强的差异性，相比之下，在水位较高的条件下，芦苇株高、茎粗、盖度和生物量均为最高值，产量达到了10 t·hm^-2；研究区土壤营养元素含量总体均处于较低水平，且不同水位条件下营养元素在各土层中的分布具有一定的差异；相关性分析表明，土壤粘粒、粗粘粒、细粉粒、粗粉粒与土壤营养元素均呈现不同程度的相关性，土壤有效磷含量与高度、茎粗、盖度、生物量均呈极显著正相关，因此土壤有效磷可能是黄河三角洲滨海湿地芦苇植被生长的限制性营养因子。

关键词: 地表径流, 土体构型, 产流机制, 壤中流, 氢氧稳定同位素

Abstract: The ecological characteristics of Phragmites australis wetlands at different water table levels in the Yellow River Delta and the related soil environmental factors were studied. The results showed that soil electrical conductivities (EC) of P. australis wetlands were significantly different at different water table levels. The lowest EC value occurred in the highest water table area. The ecological characteristics of P. australis wetlands showed great differences at different water table levels. The maximum values of plant height, shoot diameter, vegetation coverage and plant biomass occurred at the highest water table level. The plant biomass at the highest water table level was 10 t·hm^-2. The contents of soil nutrient elements in the study area were at relatively low levels, and also showed significant differences among the different soil layers. The correlation analysis showed that the soil nutrient elements had various correlations with the contents of soil clay, coarse clay, fine silt, and coarse silt. The content of soil available phosphorus showed highly significant positive correlation with plant height, shoot diameter, vegetation coverage, and plant biomass. Therefore, it can be concluded that the soil available phosphorus is a limiting nutritional factor of plant growth in the coastal wetland of the Yellow River Delta.

Key words: hydrogen and oxygen isotope, overland flow, soil architecture, interflow, runoff gene-ration mechanism

管博1,2,栗云召1,夏江宝2,董洪芳3,吕振波4,于君宝1**. 黄河三角洲不同水位梯度下芦苇植被生态特征及其与环境因子相关关系[J]. 生态学杂志.

GUAN Bo1,2, LI Yun-zhao1, XIA Jiang-bao2, DONG Hong-fang3, LU Zhen-bo4, YU Jun-bao1**. Ecological characteristics of Phragmites australis vegetation at different water table levels and their relation to environmental factors in the Yellow River Delta.[J]. cje.

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