|Table of Contents|

Relationship Between the Surface Characteristics of Eight Tree Leaves and Dust Retention

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2019年17
Page:
89-94
Research Field:
Publishing date:

Info

Title:
Relationship Between the Surface Characteristics of Eight Tree Leaves and Dust Retention
Author(s):
LIN Xingyu; LI Haimei; LI Yanhua; JIANG Yuemei
(College of Landscape Architecture and Forestry，Qingdao Agricultual University，Qingdao,Shandong 266109)
Keywords:
dust retention per unit leaf area; leaf surface structure; roughness; fitting relation
PACS:
-
DOI:
10.11937/bfyy.20183853
Abstract:
The dust retention ability of 8 tree species in Chengyang district of Qingdao city was studied by washing method and weight difference method.Scanning electron microscope (JEOL7500F)，scanning probe microscope (SPI3800-SPA-400,Seiko Instruments Inc.) and Image J were used to study the surface roughness，leaf hair quantity，stomatal size and stomatal density.The relationship between dust retention ability and leaf surface characteristics of 8 tree species was analyzed.The results showed that the seasonal dedust of the 8 tree species was shown to be in the autumn>spring>summer.The dust retention per unit leaf area of Prunus cerasifera，Platanus orientalis and Populus tomentosa was larger than that of Fraxinux pennsylvanica and Salix matsudana，and the dust retention per unit leaf area of Prunus cerasifera was the largest，averaging 2.044 7 g?m-2.The smallest Salix matsudana was 0.574 7 g?m-2,while the former was 3.6 times larger than the latter.By analyzing the relationship between leaf surface structure and dust retention，it is concluded that plants with waxy layer or obvious reticulate structure，rough leaf surface with obvious folds，groove or villi on leaf surface，more stomata and large opening have stronger dust retention capacity.There was a significant positive correlation between leaf roughness，leaf hair quantity，stomatal size，stomatal density and dust retention per unit leaf area，indicating that the greater the leaf roughness，stomatal size and stomatal density，the greater the number of leaf hairs and the greater the dust retention in leaves.

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Last Update: 2019-09-24