干旱区生态环境知识资源中心(Arid): 生化尾水胁迫下湿地植物生理特性变化

Arid

	生化尾水胁迫下湿地植物生理特性变化
其他题名	Changes of Physiological Characteristics of Wetland Plants under Biochemical Tail Water Stress
	张国珍; 亢瑜; 尚兴宝
来源期刊	水生态学杂志
ISSN	1674-3075
出版年	2020
卷号	41 期号:3 页码:123-128
中文摘要	检测植物处理污水厂生化尾水的效果和分析植物生理生长特性,为西北干旱半干旱地区人工湿地污水处理系统合理配置土著湿地植物提供理论依据。在复合垂直流- 水平流人工湿地中种植芦苇和香蒲,生活污水处理装置的二级生化出水胁迫,植物移栽成活后和收割之前分别检测植物的生理、生长指标和光合参数。结果表明,C OD_(Cr)、NH_4~+-N、TN、TP的去除率,种植植物期间分别为79.32%、85.69%、82.17%、91.76%,植物收割后分别为 71.34%、58.45%、60.49%、89.86%;芦苇最高株高达到380 cm,香蒲最高株高达到320 cm;地上部分生物量香蒲最高达到4.15kg,芦苇最高达到7.55 kg;香蒲的净光合速率(P_n)分别增加了6.35%、3.99%、22.39%,芦苇的净光合速率(P_n)则分别增加了42.20%、5.26%、 8.96%。2种湿地植物在污水胁迫下表现出一定的防御能力,但是抗污能力存在一定的差异。
英文摘要	Wetland plants are important components of constructed wetland wastewater treatment systems. Pollutant removal efficiency in constructed wetlands is closely related to the growth and physiological characteristics of wetland plants. We examined the physiological characteristics of two plants (Phragmites australis and Typha) in a constructed wetland designed for purifying effluent from a secondary wastewater treatment plant (WWTP) and pollutant removal efficiency was analyzed. The objective was to provide a theoretical basis for the rational allocation of wetland plants for constructed wetland wastewater treatment systems designed for the arid and semi-arid regions of northwest China. Phragmites australis and Typha plants were transplanted to an artificial wetland with descending and ascending vertical flows and horizontal subsurface flow and stressed by the effluent from a secondary WWTP. The plant physiology, growth indicators and photosynthetic parameters of the two plants were tested after survival and before harvest over three days. The removal rates of COD_(Cr), NH_4~+-N, TN and TP were, respectively, 79.32%, 85.69%, 82.17%, and 91.76% during the plant growing period and 71.34%, 58.45%, 60.49% and 89.86% after the plants were harvested. The maximum height and above ground biomass of Phragmites australis were up to 380 cm and 7.55 kg, and the height and aboveground biomass of Typha were up to 320 cm and 4.15 kg. The net photosynthetic rate (Pn) of Typha for each treatment increased by 6.35%, 3.99%, and 22.39%, respectively, and the net photosynthetic rate (Pn) of Phragmites australis increased by 42.20%, 5.26%, and 8.96%, respectively. The two wetland plants showed some tolerance to wastewater stress, but the pollutant resistance of the two plants differed.
中文关键词	生化尾水 ; 胁迫 ; 生理特性 ; 芦苇 ; 香蒲
英文关键词	biochemical tail water stress physiological characteristics Phragmites australis Typha
类型	Article
语种	中文
收录类别	CSCD
WOS类目	Environmental Sciences & Ecology
CSCD记录号	CSCD:6768114
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/353834
作者单位	张国珍, 兰州交通大学环境与市政工程学院, 兰州, 甘肃 730070, 中国.; 亢瑜, 兰州交通大学环境与市政工程学院, 兰州, 甘肃 730070, 中国.; 尚兴宝, 中国市政工程华北设计研究总院有限公司, 天津 300074, 中国.
推荐引用方式 GB/T 7714	张国珍,亢瑜,尚兴宝. 生化尾水胁迫下湿地植物生理特性变化[J],2020,41(3):123-128.
APA	张国珍,亢瑜,&尚兴宝.(2020).生化尾水胁迫下湿地植物生理特性变化.水生态学杂志,41(3),123-128.
MLA	张国珍,et al."生化尾水胁迫下湿地植物生理特性变化".水生态学杂志 41.3(2020):123-128.