干旱区生态环境知识资源中心(Arid): 我国典型土壤中铜对白符跳(Folsomia candida)的毒性阈值及其预测模型

Arid

	我国典型土壤中铜对白符跳(Folsomia candida)的毒性阈值及其预测模型
其他题名	Toxicity Thresholds and Prediction Model of Copper to Soil-Dwelling Springtail (Folsomia candida) in Chinese Soils
	李星; 林祥龙; 孙在金; 赵龙; 何飞; 韩颖; 侯红
来源期刊	环境科学研究
ISSN	1001-6929
出版年	2020
卷号	33 期号:3 页码:744-750
中文摘要	为确定我国土壤中Cu对白符跳的毒性阈值并建立其预测模型,以外源添加的方式研究了我国9种典型土壤(江西红壤、安徽黄棕壤、重庆紫色土、云南黄红壤、湖南水稻土、山东潮土、黑龙江黑土、新疆灰漠土、陕西垆土)中Cu对模式生物白符跳(Folsomia candida)存活率与繁殖率的影响.结果表明:白符跳存活率对Cu毒害的敏感性远低于繁殖率. 9种土壤中基于w(TCu)实测值推导的土壤Cu对白符跳繁殖率的EC_(50)(半数效应浓度)变化范围为65~668 mg/kg,表明不同土壤中Cu的毒性阈值差异显著,但基于w(Cu_(Ca))(Cu_(Ca)为CaCl_2溶液提取的Cu)推导的不同土壤中EC_ (50)的差异有所减小.相关性分析表明,基于w(TCu)实测值推导的EC_(50)值与土壤pH、w(CaCO_3)均呈显著正相关,相关系数分别为 0.801和0.670.进一步利用回归分析建立了基于pH和w(OM)的土壤Cu对白符跳繁殖的EC_(50)预测模型lg(EC_(50))= 0.213+0.288pH+0.016 w(OM),基于该模型预测与推导的EC_(50)值之间相关性较好.研究显示,氯化钙提取态Cu的存在能在一定程度上解释不同土壤中Cu对白符跳繁殖的 EC_(50)值的差异,pH和w(OM)可较好地预测不同土壤中Cu对白符跳繁殖的EC_(50)值.
英文摘要	To determine the toxicity thresholds of Cu to springtails in Chinese soils and establish prediction model of Cu toxicity, the effects of exogenous Cu on the survival and reproduction of model organism-Folsomia Candida were studied in nine typical types of soils (red soil in Jiangxi, yellow-brown soil in Anhui, purple soil in Chongqing, yellowish-red soil in Yunnan, paddy soil in Hunan, fluvoaquic soil in Shandong, black soil in Heilongjiang, gray desert soil in Xinjiang and loessal soil in Shaanxi). The results showed that sensitivity of the survival to Cu toxicity was much lower than that of reproduction. The EC_(50) (concentration causing 50% toxic effect) of soil Cu for the reproduction based on measured total Cu concentrations ranged from 65 mg/kg to 668 mg/kg, indicating that very significant differences of Cu toxicity thresholds in different soils. However, when calculated based on CaCl_2 extracted Cu, the EC_(50) values between different soils were much smaller. The correlation analysis showed that both soil pH and calcium carbonate content were significantly and positively correlated with the EC_(50) value based on the measured total Cu, and the correlation coefficients were 0.801 and 0.670, respectively. The further developed prediction model of Cu toxicity thresholds for reproduction based pH and organic matter using regression analysis was that lg(EC_(50)) = 0.213 + 0.288pH + 0.016w(OM), and the predicted EC_(50) well correlated with calculated EC_(50). This study showed that to some extent the existence of CaCl_2 extracted Cu could explain the differences of EC_(50) for the reproduction between soils, and soil pH and organic matter could well predict the EC_(50) of Cu for the reproduction between soils.
中文关键词	铜 ; 白符跳 ; 氯化钙提取态Cu ; 土壤理化性质 ; 毒性阈值 ; 预测模型
英文关键词	copper Folsomia candida calcium chloride-extracted fraction soil properties toxicity threshold prediction model
类型	Article
语种	中文
收录类别	CSCD
WOS类目	Environmental Sciences & Ecology
CSCD记录号	CSCD:6671022
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/353624
作者单位	李星, 西南科技大学生命科学与工程学院, 绵阳, 四川 621010, 中国. 韩颖, 西南科技大学生命科学与工程学院, 绵阳, 四川 621010, 中国. 林祥龙, 中国环境科学研究院, 环境基准与风险评估国家重点实验室, 北京 100012, 中国. 孙在金, 中国环境科学研究院, 环境基准与风险评估国家重点实验室, 北京 100012, 中国. 赵龙, 中国环境科学研究院, 环境基准与风险评估国家重点实验室, 北京 100012, 中国. 侯红, 中国环境科学研究院, 环境基准与风险评估国家重点实验室, 北京 100012, 中国. 何飞, 云南农业大学资源与环境学院, 昆明, 云南 650201, 中国.
推荐引用方式 GB/T 7714	李星,林祥龙,孙在金,等. 我国典型土壤中铜对白符跳(Folsomia candida)的毒性阈值及其预测模型[J],2020,33(3):744-750.
APA	李星.,林祥龙.,孙在金.,赵龙.,何飞.,...&侯红.(2020).我国典型土壤中铜对白符跳(Folsomia candida)的毒性阈值及其预测模型.环境科学研究,33(3),744-750.
MLA	李星,et al."我国典型土壤中铜对白符跳(Folsomia candida)的毒性阈值及其预测模型".环境科学研究 33.3(2020):744-750.