| 张治国，魏海霞.桑沟湾国家城市湿地公园 19 种植物比叶面积和叶干物质含量比较[J].广东农业科学,2021,48(3):64-71 |
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桑沟湾国家城市湿地公园 19 种植物比叶面积和叶干物质含量比较 |
| Comparisons of Specific Leaf Area and Leaf Dry Matter Contents of Nineteen Plant Species in the Sanggou Bay National Wetland Park |
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| DOI：10.16768/j.issn.1004-874X.2021.03.008 |
| 中文关键词: 桑沟湾国家城市湿地公园 生活型 比叶面积 叶干物质含量 适应策略 |
| 英文关键词: Sanggou Bay National Wetland Park life form specific leaf area leaf dry matter content adaptation strategy |
| 基金项目:山东省自然科学基金（ZR2020MC036）；枣庄学院博士科研启动基金（2018BS032，2018BS033） |
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| 中文摘要: |
| 【目的】比叶面积（SLA）和叶干物质含量（LDMC）与植物生长和资源利用效率紧密相关，研究湿地植物种间和种内 SLA 和 LDMC 的差异能够指示植物对湿地环境的适应机制，为湿地资源的保护和合理开发提供一定的理论依据。【方法】以胶东半岛桑沟湾国家城市湿地公园 19 种植物为研究对象，分别测定其 SLA 和LDMC，并与鲁西南微山湖红荷湿地测定的数据进行比较分析。【结果】桑沟湾湿地 19 种植物的 SLA 和 LDMC均表现出显著种间差异，变异系数分别为 27.8% 和 30.1%，其中禾本科和豆科植物具有较小的 SLA 和较高的LDMC。从生活型来看，草本植物 SLA 显著大于木本植物，而 LDMC 显著低于木本植物；挺水植物 SLA 显著小于陆生植物，而 LDMC 显著高于陆生植物。SLA 和 LDMC 之间在不同生活型中均呈显著负相关关系。对于在桑沟湾湿地和红荷湿地均有分布的物种来说，桑沟湾湿地植物具有更小的 SLA 和更高的 LDMC。【结论】桑沟湾湿地植物较小的 SLA 和较高的 LDMC 主要受到该地区大风环境以及较为贫瘠土壤的影响，反映该地区植物为适应生存环境可能采取资源保守型利用策略。 |
| 英文摘要: |
| 【Objective】Specific leaf area (SLA) and leaf dry matter content (LDMC) are closely associated with plant growth and resource utilization efficiency. The inter- and intraspecific differences in SLA and LDMC of wetland plants can indicate the adaptation mechanisms of plants to wetland environments, and the research will provide a theoretical basis for the protection and rational development of wetland resources.【Method】The SLA and LDMC of 19 plant species in the Sanggou Bay National Wetland Park were measured, and the data were further compared with those collected in the Red Lotus Wetland of Weishan Lake in southwest Shandong.【Result】There were significant differences in SLA and LDMC among the nineteen species, and the coefficients of variation were 27.8% and 30.1%, respectively. Gramineae and Leguminosae species had lower SLA and higher LDMC. For the life form, the SLA of herbs was significantly higher than that of woody plants, while the LDMC was significantly lower than that of woody plants.
The emergent plants had significantly lower SLA and higher LDMC than that of terrestrial plants. There was a significant negative correlation between SLA and LDMC in different life forms. For the plant species distributed in both Sanggo Bay Wetland and Red Lotus Wetland, plants in the Sanggou Bay Wetland had lower SLA and higher LDMC.【Conclusion】The lower SLA and higher LDMC of plants in the Sanggou Bay Wetland were mainly induced by both the strong wind and poor soil in the region, reflecting that resource conservation strategies may be adopted for the plants in this area to adapt to the survival
environment. |
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