Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2016, Vol. 32 ›› Issue (34): 1-6.doi: 10.11924/j.issn.1000-6850.casb16030212

Special Issue: 农业气象

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Sabina chinensis: Blocking Effect on Atmospheric Particulates

Yan Guoxin1, Zhang Dequan2, Zou Yuqi1, Liu Jiakai1, Zhang Zhenming1   

  1. (1College of Nature Conservation, Beijing Forestry University, Beijing 100083; 2The Institute of Soil and Water Conservation in Erdos City, Erdos Inner Mongolia 017001)
  • Received:2016-03-30 Revised:2016-11-21 Accepted:2016-07-25 Online:2016-12-15 Published:2016-12-15

Abstract: The paper aims to research the ability of the individual tree to intercept atmospheric particulate matter. The authors analyzed the change rule of atmospheric particulate matter, such as PM2.5, PM10 and TSP in different heights of the tree crown of Sabina chinensis as well as different seasons, and evaluated the block effect of 3 heights of Sabina chinensis and analyzed 6 soluble ions of PM2.5 by IC (ion chromatography). The results indicated that: there were similar change rules of atmospheric particulate matter in different heights and all showed the minimum at noon, however, the block effect rate of 3 heights had great disparities and the maximum appeared in the middle part, especially on PM2.5 and the efficiency could reach 47.6%, then followed by the upper part, and the under part was the lowest; comparing different seasons, spring showed the highest concentration, followed by summer, while autumn showed the lowest concentration, what’s more, the gentlest fluctuation also appeared in autumn; Na and NH4 were at the highest concentration of soluble ions and Sabina chinensis was effective at blocking F- and Na , the efficiency was 87.62% and 68.27%, respectively.

CLC Number: