Forest litter sampling and profile structure image acquisition method

A technology of image acquisition and litter, applied in the field of forest ecology, can solve problems such as porosity research of no litter profile

Inactive Publication Date: 2011-06-15
DALIAN UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To study the physical blocking mechanism of litter, it is more appropriate to start with the porosity

Method used

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  • Forest litter sampling and profile structure image acquisition method
  • Forest litter sampling and profile structure image acquisition method
  • Forest litter sampling and profile structure image acquisition method

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Embodiment Construction

[0018] The technical solution adopted in the present invention is: use polyethyl acrylate to fix the original natural structure of forest litter, cut off the surrounding litter to collect the selected litter module, and then solidify the litter module with paraffin to increase the hardness. Then, the section of the litter module solidified by paraffin is cut and planed, and the section is scanned after melting the paraffin of the planed part. The specific operation steps are as follows:

[0019] (1) Litter fixation:

[0020] First, determine the collection point in the sampling site. The litter at the collection point should be representative, uniform as much as possible, and free of large sticks; the size of the collection point can be determined according to the needs, preferably 30cm×30cm, too large to be difficult to retrieve, and easy to retrieve Deformation, too small is not representative; after marking around the collection point, fix it with polyethyl acrylate, polye...

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Abstract

The invention discloses a forest litter sampling and profile structure image acquisition method. The method comprises the steps: spraying liquid-state polyethylene acrylate on the litters at the collection spot, wherein the polyethylene acrylate can naturally volatilize after complete permeation; fixing the litters at the collection spot; cutting off the peripheral edges of a die; taking out the die to complete the sampling of the forest litters; heating paraffin to liquid state in a container; soaking the litter die in the paraffin liquid completely to enable the paraffin liquid to permeate in the gap of the litter die; naturally cooling to obtain solidified paraffin; cutting the solidified paraffin; polishing with a plane; placing the profile of the polished litter die in boiling water to dissolve the paraffin on the profile to obtain the profile structure of the litter die; and scanning the profile by a scanner to obtain the profile structure image. In the method, the litters can be sampled, processed and scanned to obtain the profile structure image of the litters without destructing the natural structure, thereby establishing the foundation for the profile porosity calculation of the forest litters and other related researches.

Description

technical field [0001] The invention relates to the technical field of forest ecology, in particular to a method for sampling forest litter and obtaining section scanning pictures. Background technique [0002] The research on forest litter at home and abroad can be traced back to the 19th century. Ebermayer (1876) in Germany made a classic report on the production and chemical composition of forest litter layers. However, it was not until the 1950s that forest litter was studied comprehensively and systematically. In the process of forest restoration and succession, forest litter is traditionally regarded as an ecological process that has an important impact on carbon cycle, coupled with the importance of water conservation and soil and water conservation, the role of soil and water conservation and nutrient cycle of forest litter Litter and its related research, such as litter fall and decomposition rate, have become the focus of research in the field of forest ecology fo...

Claims

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Application Information

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IPC IPC(8): G01N1/28G01N1/04G01N21/27
Inventor 李根柱王贺新张自川
Owner DALIAN UNIVERSITY
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