| 南汇东滩湿地不同植被类型土壤酶时空分布特征 |
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| 引用本文： | 武鹏玲,吴铭轩,胡阳,何宁,王沁怡,张生乐,汪茂秋,钟胜财,方淑波.南汇东滩湿地不同植被类型土壤酶时空分布特征[J].上海海洋大学学报,2023,32(4):750-762. |
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| 作者姓名： | 武鹏玲 吴铭轩 胡阳 何宁 王沁怡 张生乐 汪茂秋 钟胜财 方淑波 |
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| 作者单位： | 上海海洋大学海洋生态与环境学院,上海海洋大学水产与生命学院,上海海洋大学海洋生态与环境学院,上海海洋大学海洋生态与环境学院,上海海洋大学海洋生态与环境学院,上海海洋大学海洋生态与环境学院,上海海洋大学海洋生态与环境学院,上海海洋大学海洋生态与环境学院;上海海洋大学水环境与生态工程研究中心,上海海洋大学海洋生态与环境学院 |
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| 基金项目： | 国家重点科研项目(批准号:2017YFC0506002)、国家基础研究项目(批准号:2013CB430400)、上海市海洋局HHK 2015-02。 |
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| 摘 要： | 本文主要研究了2019年上海南汇东滩海三棱藨草湿地土壤酶全年时空分布及影响因素特征。依据海三棱藨草植被空间分布的差异，重点研究了海三棱藨草植被区、互花米草植被区、互花米草-海三棱藨草植被混合区以及对照区域光滩4个不同区域土壤酶的差异及其影响因素。研究结果如下：(1)南汇东滩海三棱藨草湿地中，不同植被类型土壤酶活性不同：脲酶活性最大值有海三棱藨草区>光滩区>互花米草区>混合区；土壤蔗糖酶活性最大值有海三棱藨草区>互花米草区>混合区＞光滩区；碱性磷酸酶活性最大值有光滩区>海三棱藨草区>混合区>互花米草区；过氧化氢酶活性最大有混合区>海三棱藨草区>互花米草区＞光滩区；（2）混合植被区脲酶和蔗糖酶活性低于单一植被区，互花米草入侵降低了脲酶蔗糖酶酶活性，降低了海三棱藨草湿地的土壤肥力；（3）不同植被类型区域土壤酶活性受环境因子影响不同，植被类型决定了土壤肥力进而影响了酶活力。
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| 关 键 词： | 海三棱藨草 土壤酶 理化因子 土壤肥力 |
| 收稿时间： | 2020/5/24 0:00:00 |
| 修稿时间： | 2021/6/22 0:00:00 |
Spatiotemporal patterns of soil enzymes in different vegetation types in the Dongtan wetland of Nanhui |
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| WU Pengling,WU Mingxuan,HU Yang,HE Ning,WANG Qinyi,ZHANG Shengle,WANG Maoqiu,ZHONG Shengcai,FANG Shubo.Spatiotemporal patterns of soil enzymes in different vegetation types in the Dongtan wetland of Nanhui[J].Journal of Shanghai Ocean University,2023,32(4):750-762. |
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| Authors: | WU Pengling WU Mingxuan HU Yang HE Ning WANG Qinyi ZHANG Shengle WANG Maoqiu ZHONG Shengcai FANG Shubo |
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| Institution: | College of Marine Ecology and Environment, Shanghai Ocean University,College of Aquatic Products and Life, Shanghai Ocean University,College of Marine Ecology and Environment, Shanghai Ocean University,College of Marine Ecology and Environment, Shanghai Ocean University,College of Marine Ecology and Environment, Shanghai Ocean University,College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai 201306, China,College of Marine Ecology and Environment, Shanghai Ocean University,College of Marine Ecology and Environment, Shanghai Ocean University;Research Center of Water Environment & Ecological Engineering, Shanghai Ocean University, Shanghai,College of Marine Ecology and Environment, Shanghai Ocean University |
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| Abstract: | : The spatial and temporal distribution of soil enzymes and their influencing factors were studied in the east wetland of Nanhui, Shanghai in 2019.According to the spatial distribution difference of Scirpus mariqueter vegetation and different elevation, the differences of soil enzymes and their influencing factors in 5 different areas of Scirpus mariqueter vegetation, Spartina alterniflora area, Spartina alterniflora and Scirpus mariqueter mixture area, higher elevation mixture area, and lower elevation mixture area were studied.The results were as follows :(1) the soil enzyme activities of different vegetation types were increased in the Scirpus mariqueter regions of the Nanhui Scirpus mariqueter wetlands.The highest activity of urease and sucrase was found in Scirpus mariqueter region,the highest activity of catalase was found in Spartina alterniflora region;the activity of urease and sucrase in mixed vegetation area was lower than that in single vegetation area,the invasion of Spartina alterniflora reduced the activity of urease and sucrase.(2) Elevation affects soil enzyme activity, urease activity and alkaline phosphatase are more active in lower elevation vegetation areas, sucrose is more active with higher elevation, and catalase is more active in vegetation suitable for growth.(3)The invasion of interfloral Spartina alterniflora reduced the soil fertility of Scirpus mariqueter.The physical and chemical factors affecting the enzyme activity were different between the Spartina alterniflora area and the Scirpus mariqueter area, and the variation trend of physicochemical factors in season was also different.(4) Soil enzyme activities in regions with different vegetation types are affected by different environmental factors, and vegetation types determine soil fertility and thus affect enzyme activities. |
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| Keywords: | Scirpus mariqueter soil enzyme physical and chemical factors soil fertility |
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