您好,欢迎访问北京市农林科学院 机构知识库!

Typical Greening Species Based on Five "Capability Indicators" Under the Artificial Control of Negative Ion Releasing Capacity

文献类型: 外文期刊

作者: Li, Shaoning 1 ; Yu, Di 1 ; Zhao, Na 1 ; Li, Tingting 1 ; Li, Bin 1 ; Xu, Xiaotian 1 ; Lu, Shaowei 1 ;

作者机构: 1.Beijing Acad Agr & Forestry Sci, Inst Forestry & Fruit Tree Res, Beijing 100093, Peoples R China

2.Beijing Yanshan Forest Ecosyst Observat & Res Stn, Beijing 100093, Peoples R China

3.Shenyang Agr Univ, Coll Forestry, Shenyang 110866, Peoples R China

关键词: open top box; negative air ions; capacity indicators; release capacity

期刊名称:FORESTS ( 影响因子:2.5; 五年影响因子:2.7 )

ISSN:

年卷期: 2025 年 16 卷 7 期

页码:

收录情况: SCI

摘要: Negative air ions (NAIs) can purify the atmosphere and maintain human health. In this study, we selected six tree species, Pinus tabuliformis, Pinus bungeana, Acer truncatum, Sophora japonica, Koelreuteria paniculata, Quercus variabilis, Robinia pseudoacacia, and Populus tomentosa, and we established for the first time five "capacity indicators" to characterize and judge the capacity of plants to release negative ions: they comprised the release contribution rate L, release coefficient n, release rate s, instantaneous current number v, and total level of release Z. These indicators were used to assess the ability of the plants to release NAIs by themselves. The results showed the following. (1) The daily variations in L and n show "W" and "concave" shapes, respectively, and the contribution capacity at night is significantly higher than that during the day. The diurnal variations in s, v, and Z all showed a "bimodal" pattern. The NAI release rate and release level of each tree species during the day were significantly higher than those at night. (2) The trees released the most NAIs during the day at approximately 10:00, while Robinia pseudoacacia and Populus tomentosa peaked with a 2 h lag (12:00). The NAI release capacity of each tree species was the worst at 13:00. (3) During the growing season, the self-contribution effects L and n of the plants were the strongest in May. The release rates and release levels s, v, and Z were the lowest in August. The coniferous plants released NAIs at the fastest rate in September and broad-leaved plants in July, with the highest release levels. In this study, the plants released the most NAIs from 10:00 a.m. to 11:00 a.m., which is the best time to travel. Quercus variabilis was preferentially recommended in the pairing of species of tree with the quickest NAI release and the highest total number released, followed by Koelreuteria paniculata and Sophora japonica.

  • 相关文献
作者其他论文 更多>>