| 引用本文: |
袁志鹰,周小江,黄惠勇,曾光,黄培,何卫波,许光明,陈乃宏.湖南卷丹百合适生地环境指数特征分析及风险评价[J].湖南中医药大学学报,2018,38(7):750-754[点击复制] |
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| 湖南卷丹百合适生地环境指数特征分析及风险评价 |
| 袁志鹰,周小江,黄惠勇,曾光,黄培,何卫波,许光明,陈乃宏 |
| (湖南中医药大学, 湖南 长沙 410208;湖南省中药饮片标准化与功能工程技术中心, 湖南 长沙 410208;湖南省药食同源功能性食品工程技术中心, 湖南 长沙 410208;湖南中医药大学, 湖南 长沙 410208;湖南省药食同源功能性食品工程技术中心, 湖南 长沙 410208) |
| 摘要: |
| 目的 对湘产药食两用植物卷丹百合的适生地环境中的土壤、灌溉水和空气进行多维度质量评价及风险评估。方法 采用野外采样和实验室分析，对湖南龙山县卷丹百合的育种基地和生产基地土壤和灌溉水中的镉（Cd）、铬（Cr）、汞（Hg）、砷（As）、铅（Pb）、铜（Cu）6种重金属元素的含量特征进行分析，并对龙山百合基地的大气环境中的SO2、NO2、CO、O3、PM10、PM2.5 6项基础指标进行测定。利用单项污染指数法、综合污染指数法、潜在生态风险指数评价方法对研究区域进行环境质量评价。结果 研究区土壤中Cd、Cr、Hg、As、Pb、Cu的含量范围分别为0.16~0.29、2.30~6.63、0.08~0.30、10.33~26.44、2.00~11.60、10.60~36.44 mg/kg，灌溉水Pb、Cd、Cr、Cu、As、Hg的含量范围分别为：0.000 2~0.002 0、0.000 2~0.000 9、未检出、1个样本为0.000 1（其余未检出）、0.000 3~0.001 0、0.000 1~0.000 5 mg/L；当地大气环境SO2、NO2、PM10、PM2.5年平均值分别为16、13、60、34 μg/m3；CO 24 h平均值为0.9 mg/m3、O3日最大8 h平均值为94 μg/m3。龙山产地环境平均综合污染水平处于安全级别，污染水平为清洁级别，生态风险级别均为A级（低）。结论 龙山具有优良的卷丹百合产地环境，适合生产符合现代质量要求的绿色百合。但部分采样点土壤中Cd、Hg、As的Pi>1，或者接近临界值1，具有一定的潜在生态风险。 |
| 关键词: 卷丹百合 适生地环境 污染指数 风险评价 重金属 |
| DOI：10.3969/j.issn.1674-070X.2018.07.008 |
| 投稿时间：2017-09-25 |
| 基金项目:国家自然科学基金青年项目（81403206）；国家中医药管理局科研项目（ZYBZH-Y-HUN-24）；长沙市科技局重点项目（K1406032-11）；湖南中医药大学大学生研究性学习和创新性实验计划课题（2017-23）。 |
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| Analysis of Environmental Characteristics and Risk Assessment in Hunan Production Base of Lilium Lancifolium |
| YUAN Zhiying,ZHOU Xiaojiang,HUANG Huiyong,ZENG Guang,HUANG Pei,HE Weibo,XU Guangming,CHEN Naihong |
| (Hunan University of Chinese Medicine, Changsha, Hunan 410208, China;Hunan Engineering Technology Center of Standardization and Function of Chinese Herbal Decoction Pieces, Changsha, Hunan 410208, China;Hunan Engineering Technology Center of Functional Food Homology of Medicine, Changsha, Hunan 410208, China;Hunan University of Chinese Medicine, Changsha, Hunan 410208, China;Hunan Engineering Technology Center of Functional Food Homology of Medicine, Changsha, Hunan 410208, China) |
| Abstract: |
| Objective To assess the environment of Hunan production base of lilium lancifolium by the index of the soil, irrigation water and air quality. Methods The content distribution characteristics of cadmium (Cd), chromium (Cr), mercury (Hg), arsenic (As), plumbum (Pb) and cuprum (Cu) in Longshan region soils and irrigation water of ilium lancifolium base in Hunan province were analyzed. The six basic indexes of SO2, NO2, CO, O3, PM10 and PM2.5 in the atmospheric environment of Longshan lilium lancifolium base were determined. The environmental quality in research area was assessed by using single pollution index method, comprehensive pollution index method and potential ecological risk index. Results The content of Cd, chromium Cr, Hg, As, Pb and Cu of soil were in the range of 0.16~0.29, 2.30~6.63, 0.08~0.30, 10.33~26.44, 2.00~11.60, 10.60~36.44 mg/kg; the contents of Pb, Cd, Cr, Cu, As and Hg in the irrigated area were 0.000 2~0.002 0, 0.000 2~0.000 9,not detected, 0~0.000 1, 0.000 3~0.001 0 and 0.000 1~0.000 5 mg/L. The annual average values of SO2, NO2, PM10 and PM2.5 in the local atmospheric environment were 16, 13, 60 and 34 g/m3, respectively. The average value of CO (24 hours) was 0.9 mg/m3, and the maximum 8 hours for O3 was 94 μg/m3. According to the comprehensive pollution index and potential ecological risk index method, the average pollution level in Longshan area is in the security level, the pollution level is clean level, and the ecological risk grade is grade A (low). Conclusion Longshan has excellent production environment suitable for the growth of lilium lancifolium. However, the Pi of Cd, Hg and As in some soil samples are more than 1, or close to the critical value of 1, which has some potential ecological risk. |
| Key words: lilium lancifolium adaptive environment pollution index risk assessment heavy metals |
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