| 不同管理措施对长江口围垦湿地芦苇群落土壤呼吸的影响 |
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| 引用本文： | 杨淑慧,任文玲,仲启铖,王开运,张超.不同管理措施对长江口围垦湿地芦苇群落土壤呼吸的影响[J].浙江农业学报,2011,23(6):0. |
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| 作者姓名： | 杨淑慧 任文玲 仲启铖 王开运 张超 |
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| 作者单位： | 华东师范大学 资源与环境科学学院,上海市城市化生态过程与生态恢复重点实验室,上海 200062 |
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| 基金项目： | 国家科技部“十一五”科技支撑重大项目(2006BAC01A14); 上海市科委科技创新行动计划(10dz1200602,10dz1200902) |
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| 摘 要： | 以崇明东滩的长江口典型芦苇湿地作为试验地点,通过对研究样地冬春季土壤呼吸及表层土壤温度、含水量的测定,探讨不同刈割期和还田处理对湿地芦苇土壤呼吸的影响。结果表明,晚期刈割且还田措施显著增加了土壤呼吸强度,而早期刈割且不还田措施显著降低了土壤呼吸强度。湿地土壤呼吸与土壤温度和水分的相关性分析显示,土壤呼吸与表层土壤温度具有显著的指数关系,而与表层含水量的关系较低,二者的共同作用可以解释土壤呼吸变化的88%～93%,表明不同的管理措施可显著影响湿地生态系统中的土壤碳排放。
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| 关 键 词： | 管理措施 长江口围垦湿地 芦苇群落 土壤呼吸 |
Effects of different management practices on soil respiration of Phragmites communities in Yangtze River reclaimed wetlands |
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| YANG Shu-hui
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REN Wen-ling
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ZHONG Qi-cheng
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WANG Kai-yun
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ZHANG Chao.Effects of different management practices on soil respiration of Phragmites communities in Yangtze River reclaimed wetlands[J].Acta Agriculturae Zhejiangensis,2011,23(6):0. |
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| Authors: | YANG Shu-hui REN Wen-ling ZHONG Qi-cheng WANG Kai-yun ZHANG Chao |
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| Institution: | School of Resources and Environmental Science, East China Normal University, Key Laboratory of Urbanization and Ecological Restoration, Shanghai 200062, China |
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| Abstract: | Mowing and straw returning of Phragmites are two main management practices in the wetland ecosystem.A field experiment was conducted at Dongtan wetland,Chongming Island near Yangtze River estuary to determine the effects of different management practices on soil respiration of wetland ecosystem.The results indicated that late winter mowing and straw returning significantly increased the strength of soil respiration,whereas early winter mowing and no straw returning significantly reduced the strength of soil... |
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| Keywords: | management practices Yangtze River reclaimed wetlands Phragmites communities soil respiration |
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