A Method for Collection and Quantification of Falling Dust on Plant Leaf Surface

Abstract

The invention discloses a method for collecting and quantifying dust fall of plant leaf surfaces. The method comprises the following steps that before an experiment, a clean and dry needle filter is numbered and weighed as w1; a syringe is connected with the needle filter and a piston is pulled out for standby application; leaf blades of which dust falls on the leaf surfaces are collected and placed into the numbered syringe, and the syringe with an nozzle upwards is brought back to a laboratory for measurement; the leaf blades are directly cleaned in distilled water directly in the syringe and taken out to be dried after the cleaning; the piston inserted in the syringe slowly filter out cleaning fluid in the syringe; after the filtering, the needle filter is removed to be dried and weighed as W2, quality difference w2-w1 of the filter is dust fall quality of the blade leaf surface; after the leaf blades are dried, the leaf blade area S is measured by a leaf area meter, and therefore the amount of the dust fall per leaf area D is (W2-W1) / S. The method for collecting and quantifying the dust fall of the plant leaf surfaces can effectively and accurately collect all dust grains of the plant leaf surfaces, quantitatively obtain the amount of dust fall of the leaf surfaces per area, and be used for subsequent physico-chemical analysis.

Description

technical field [0001] The invention belongs to the field of ecological and environmental protection, and specifically relates to a method for collecting and quantifying dust falling on plant leaf surfaces, which is used to effectively and accurately collect all dust falling particles on plant leaf surfaces, quantitatively obtain the dust falling amount per unit area of ​​leaf surface, and use it for subsequent physical and chemical analysis . Background technique [0002] With the rapid development of industrialization and urbanization in modern society, dust from construction sites, road dust, industrial smoke, and vehicle exhaust emissions have all increased significantly, resulting in serious atmospheric particulate matter pollution, which is not only harmful to human health, but also affects the ecological environment, including urban greening. Plants and crops. The typical form of atmospheric particulate matter harming plants is leaf surface dustfall. Atmospheric dust...

AI Technical Summary

Problems solved by technology

The ordinary filter paper used in this method usually has a very thick pore size, which is unable to retain the actually finer dust particles, resulting in the loss of dust fall; moreover, the fragile ordinary filter paper also causes a lot of quality loss after repeated processing. In addition, there is also a loss of dust in the transfer link of the leaves harvested from the field; soaking the leaves for too long can also easily cause leaf area errors

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