Abstract:
Dendrocalamus latiflorus bamboo stumps occupied the stump space after selective cutting of old bamboos and bamboo shoots, which was an important reason for low efficiency of bamboo shoot forest. The test of bamboo stumps etching with potassium hydroxide solution showed that the erosion of strong alkali solution made the inner wall of the bamboo stump soften, the thin-walled cells were damaged, the vascular bundles were stripped and collapsed, and the structure and hardness of the outer wall were limited. The individual bamboo stump was physically inactivated, which was conducive to the participation of natural microorganisms in promoting decay. The strong alkali erosion resulted in significant changes in lignin, cellulose, hemicellulose and ash content of bamboo stumps, and 0.50 g/mL potassium hydroxide solution was the best treatment concentration in this experiment. When the stump chamber was treated with potassium hydroxide solution, the pH value decreased to weak alkalinity, and the potassium carbonates in the reactant were all environmentally friendly.
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