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首页> 外文期刊>Wood and Fiber Science >TECHNICAL NOTE: EFFECT OF SOIL ON THE pH OF TREATED WOOD IN GROUND CONTACT
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TECHNICAL NOTE: EFFECT OF SOIL ON THE pH OF TREATED WOOD IN GROUND CONTACT

机译：技术说明：土壤对处理后木材中酸碱度的影响

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摘要

The pH of treated wood in ground contact will influence the type and activity of decay and nondecay microorganisms present as well as the solubility and leaching of metallic biocides. To determine the soil effect on the pH of treated wood in ground contact, southern pine sapwood samples commercially treated with five copper-based preservatives along with untreated pine were placed in pots filled with five different soils. The pH of the wood samples after a 12-wk exposure to basic soils increased, asanticipated. However, the pH of wood in acidic soils was more complex than expected with the treated wood pH always greater than soil pH. Two possible chemical mechanisms to explain the nonintuitive results for treated wood in acidic soils are given.
机译：处理过的木材与地面接触时的pH值将影响所存在的腐烂和非腐烂微生物的类型和活性，以及​​金属杀生物剂的溶解度和浸出。为了确定土壤对经地面处理的木材的pH值的影响，将用五种铜基防腐剂与未经处理的松树进行商业处理的南方松边材样品放入装有五种不同土壤的花盆中。预期12周暴露在碱性土壤中后，木材样品的pH值会升高。但是，酸性土壤中的木材pH值比预期的要复杂得多，处理后的木材pH值始终大于土壤pH值。给出了两种可能的化学机理来解释酸性土壤中处理过的木材的非直观结果。

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