短期模拟增温对黄河三角洲滨海湿地芦苇光响应特征的影响

doi:DOI:10.5846/stxb201611242401

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 中科院海岸带环境过程与生态修复重点实验室 > 近岸生态与环境实验室

	短期模拟增温对黄河三角洲滨海湿地芦苇光响应特征的影响
	孙宝玉 ; 韩广轩 ; 陈亮 ; 王安东 ; 吴立新 ; 赵敏
刊名	生态学报
	2017-09-12
卷号	38 期号:1 页码:167-176
关键词	short-term warming photosynthetic -light response curve light responsive parameters Phragmites australis coastal wetland Yellow River Delta 短期增温光响应曲线光合参数芦苇滨海湿地黄河三角洲
ISSN号	1000-0933
DOI	DOI:10.5846/stxb201611242401
其他题名	Effect of short-term experimental warming on photosynthetic characteristics of Phragmites australis in a coastal wetland in the Yellow River Delta, China
产权排序	(1) 中国科学院烟台海岸带研究所中国科学院海岸带环境过程与生态修复重点实验室 ; (2) 中国科学院大学 ; (3) 聊城大学环境与规划学院 ; (4) 山东省黄河三角洲国家级自然保护区 ; (5) 山东省东营市国土资源局
文献子类	Article
英文摘要	The coastal wetland in the Yellow River Delta has a shallow underground water level and is affected by both fresh and salt water. As a result,the conditions of the soil water and the presence of salt become the main factors affecting the key processes of the ecosystem. In addition, owing to global warming the average near-surface air temperature of the Yellow River Delta has risen significantly in the last 50 years (1961-2010). Warming can affect plant photosynthesis and photosynthetic characteristics both directly and indirectly,which affects the evolution of the coastal wetlands in the Yellow River Delta. A manipulative warming experiment was conducted in a coastal wetland of the Yellow River Delta using infrared heaters. The light response curve of Phragmites australis was measured during the growing season. During each light response curve measurement, soil environmental parameters were measured simultaneously, including soil temperature, moisture, and salinity. Based on soil moisture conditions, the entire growing season could be divided into three periods, the drought period, flooding period, and wet period. The results obtained were (1) During the drought period, soil temperature was significantly increased by warming by approximately 3.3 ℃, soil moisture increased by 9.4%, and soil salt content increased by 16.7% compared to the control. Similarly, photosynthesis of P. australis was suspended under intensive irradiation due to increased salt concentration. Meanwhile, warming significantly decreased the maximum net photosynthetic rate (Pnmax), dark respiration rate (Rd),light compensation point (LCP),and light saturation point (LSP). (2) During the flooding period, no significant differences in soil temperature, moisture, and salt content under warming were discovered. However, photosynthesis of P. australis was suspended due to the saturated soil water content. (3) During the wet period, warming increased the soil temperature at 10 cm depth by 3.0 ℃ and increased the soil moisture by 2.9%; however, had no effect on soil salt content compared to the control. Meanwhile, warming increased the photosynthetic rate under middle and high light conditions and increased Pnmax, Rd, and LSP significantly by 27.7%, 14.9%,and 23.3%, respectively. (4) During the entire growing season, soil temperature at 10 cm depth was significantly increased by warming by 2.9 ℃ and soil salt content was increased by 7.0% compared to the control. However, no significant effect on light responsive parameters occurred under warming conditions. Therefore,the effect of warming on photosynthesis is obviously controlled by the conditions of the soil water and concentration of salt in the wetland ecosystem.
WOS关键词	Plant Sciences
WOS研究方向	Plant Sciences ; 植物科学
语种	中文
CSCD记录号	CSCD:6151819
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/24263]
专题	烟台海岸带研究所_近岸生态与环境实验室烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
作者单位	1.山东省东营市国土资源局 2.山东省黄河三角洲国家级自然保护区; 3.中国科学院烟台海岸带研究所中国科学院海岸带环境过程与生态修复重点实验室; 4.中国科学院大学; 5.聊城大学环境与规划学院;
推荐引用方式 GB/T 7714	孙宝玉,韩广轩,陈亮,等. 短期模拟增温对黄河三角洲滨海湿地芦苇光响应特征的影响[J]. 生态学报,2017,38(1):167-176.
APA	孙宝玉,韩广轩,陈亮,王安东,吴立新,&赵敏.(2017).短期模拟增温对黄河三角洲滨海湿地芦苇光响应特征的影响.生态学报,38(1),167-176.
MLA	孙宝玉,et al."短期模拟增温对黄河三角洲滨海湿地芦苇光响应特征的影响".生态学报 38.1(2017):167-176.