春季降雨分配变化对黄河三角洲滨海湿地优势种的影响
文献类型：期刊论文
| 作者 | 周英锋3; 贾文丽1; 马澍1,2 |
| 刊名 | 山东林业科技
 |
| 出版日期 | 2022 |
| 卷号 | 52期号:3页码:36-42 |
| 关键词 | 春季降雨分配 水盐运移 植被特征 滨海湿地 黄河三角洲 |
| ISSN号 | 1002-2724 |
| 其他题名 | Effects of spring rainfall distribution on soil respiration in a coastal wetland of the Yellow River Delta |
| 文献子类 | 期刊论文 |
| 英文摘要 | Changes of rainfall seasonal pattern would affect carbon cycling in coastal wetlands by influencing the transport of water and salt in soils. Seed germination and plant growth in coastal wetlands are sensitive to rainfall availability in spring,but the underlying mechanism of spring rainfall distribution on soil respiration is still unclear. An in-situ spring rainfall control field experiment with five treatments (+73%,+56%,control,-56% and -73% in spring,but the annual total rainfall remained the same) were set up to explore the effects of spring rainfall distribution on soil respiration of a coastal wetland on the Yellow River Delta. Soil water content in spring significantly increased with the increasing rainfall partitioning in spring,while that in autumn significantly decreased. The seasonal variation of soil salinity was opposite to soil moisture, and soil salinity showed strongest fluctuations in spring compared with other seasons. The total belowground biomass and the proportion of belowground biomass in deep soil layer increased with the increasing spring rainfall partitioning,while the proportion of belowground biomass in shallow soil layer showed an opposite pattern. Mean annual soil respiration rate was decreased with the decreasing spring rainfall partitioning,and was significantly different between +73% and -73% treatments (P<0.05). Soil respiration rate differed among different seasons. Soil respiration rate in spring and summer increased with the increasing rainfall partitioning in spring,but decreased in autumn and winter. However,the positive effect of increased spring rainfall partitioning on soil respiration in spring and summer was much greater than the negative effect in autumn and winter. Mean annual soil respiration was closely related to soil moisture and soil salinity in spring,and remarkably affected by the proportion of belowground biomass of different soil layers and total belowground biomass. |
| 语种 | 中文 |
| CSCD记录号 | CSCD:7010601 |
| 源URL | [http://ir.yic.ac.cn/handle/133337/34191]  |
| 专题 | 中国科学院黄河三角洲滨海湿地试验站 |
| 作者单位 | 1.聊城大学地理与环境学院,山东聊城252000; 2.中国科学院黄河三角洲滨海湿地生态系统野外科学观测研究站,山东东营257000 3.山东省黄河三角洲国家级自然保护区管理委员会,山东东营257500; |
| 推荐引用方式 GB/T 7714 | 周英锋,贾文丽,马澍. 春季降雨分配变化对黄河三角洲滨海湿地优势种的影响[J]. 山东林业科技,2022,52(3):36-42. |
| APA | 周英锋,贾文丽,&马澍.(2022).春季降雨分配变化对黄河三角洲滨海湿地优势种的影响.山东林业科技,52(3),36-42. |
| MLA | 周英锋,et al."春季降雨分配变化对黄河三角洲滨海湿地优势种的影响".山东林业科技 52.3(2022):36-42. |
入库方式： OAI收割
来源：烟台海岸带研究所
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