沈阳东陵公园不同功能分区空气颗粒物与负离子变化

doi:10.13292/j.1000-4890.202009.036

摘要/Abstract

摘要： 随着城市化进程的加快，城市规模逐渐扩大并产生了一系列的生态环境问题，公园绿地作为城市绿化重要的拓展途径，能够有效缓解和改善城市及其周边的空气质量。本研究以东陵公园为对象，分析了公园内不同功能分区空气颗粒物和空气负离子浓度变化，探究了颗粒物与负离子的关系。结果表明：东陵公园不同功能分区内颗粒物浓度（TSP、PM₁₀、PM_2.5和PM_1.0）日变化中最低值出现在山林生态区13:00—16:00，最高值出现在文化景观区07:00—10:00；月变化中最低值出现在湖畔游憩区，时间为9月，最高值出现在文化景观区，时间为7月；不同功能分区内颗粒物浓度存在显著差异，文化景观区内颗粒物浓度显著高于其他功能分区，不同功能区内负离子浓度无显著性差异，负离子日变化中最低值出现在文化景观区07:00—10:00，最高值出现在山林生态区13:00—16:00；月变化中最低值出现在文化景观区，时间为7月，最高值出现在湖畔游憩区，时间为9月，不同功能分区内空气颗粒物与负离子浓度呈显著负相关（P<0.05），TSP、PM₁₀与负离子相关性较高；山林生态区内颗粒物与负离子浓度相关性最强，相关系数分别为-0.698、-0.647、-0.525和-0.485。

关键词: 公园绿地, 空气颗粒物, 功能分区, 相关性, 空气负离子

Abstract: With the acceleration of urbanization process, cities gradually expand and a series of eco-environmental problems have arisen. Park green space, as an important expansion path for urban greening, can effectively mitigate and improve air quality of city and its surroundings. We analyzed the variation of particulate matter and negative air ion concentrations in different functional areas of Dongling Park in Shenyang and explored the relationship between them. The results showed that, in different functional areas of Dongling Park, the lowest value of particulate matter concentration (TSP, PM₁₀, PM_2.5 and PM_1.0) during the day occurred in the mountain forest ecological area between 13:00-16:00, and the highest value occurred in the cultural landscape area between 07:00-10:00. For monthly variation, the lowest value appeared in the lakeside recreation area in September, and the highest value appeared in the cultural landscape area in July. The concentration of particulate matter in different functional areas was significantly different, with significantly higher values in the cultural landscape area than that of other functional areas. There was no significant difference in negative air ion concentration in different functional areas. The lowest value of diurnal variation of negative air ion concentration appeared in the cultural landscape area between 07:00-10:00, and the highest value appeared in the mountain forest ecological area between 13:00-16:00. The lowest value of monthly variation appeared in the cultural landscape area in July, and the highest value appeared in the lakeside recreation area in September. The particulate matter concentration in different functional areas showed a significantly negative correlation with negative air ion concentration (P<0.05). The correlation between TSP, PM₁₀ and negative air ion was higher. The particulate matter concentration in the mountain forest ecological area had strong correlation with negative air ion concentrations (TSP, PM₁₀, PM_2.5 and PM_1.0), with correlation coefficients of -0.698, -0.647, -0.525 and -0.485, respectively.

Key words: park green space, particulate matter, functional area, correlation, negative air ion.

韩静波, 张智, 张维康, 刘双芳, 彭泽群. 沈阳东陵公园不同功能分区空气颗粒物与负离子变化[J]. 生态学杂志, 2020, 39(9): 3099-3107.

HAN Jing-bo, ZHANG Zhi, ZHANG Wei-kang, LIU Shuang-fang, PENG Ze-qun. Variation of particulate matter and negative air ions in different functional areas of Dongling Park in Shenyang.[J]. Chinese Journal of Ecology, 2020, 39(9): 3099-3107.

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沈阳东陵公园不同功能分区空气颗粒物与负离子变化

Variation of particulate matter and negative air ions in different functional areas of Dongling Park in Shenyang.

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