The Effect of Regulating Soil pH on the Control of Pine Wilt Disease in a Black Pine Forest
The Effect of Regulating Soil pH on the Control of Pine Wilt Disease in a Black Pine Forest
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DOI：
10.3390/f14081583
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发表时间：
2023-08
期刊：
影响因子：
2.9
通讯作者：
Ying Fan;Lin Liu;Chuchen Wu;G. Yu;Zhengyu Wang;Jingjing Fan;Chengyi Tu
中科院分区：
文献类型：
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作者：
Ying Fan;Lin Liu;Chuchen Wu;G. Yu;Zhengyu Wang;Jingjing Fan;Chengyi Tu
松材线虫病（PWD）是一种对森林生态系统破坏性极强的病害，会导致森林大面积衰退和巨大的经济损失。由于土壤 pH 值在土壤微生物活动中起着至关重要的作用，并显着影响疾病的流行和严重程度，因此我们在黑松 (Pinus thunbergii) 森林中进行了一项调节土壤 pH 值以减轻 PWD 的实验。结果表明：（1）黑松林下土壤pH值为5.19±0.40，显着低于其他植被类型土壤pH值8.53±0.44。 (2)细磨贝壳粉(F-SP)是长期有效调节的最佳尺寸，但生石灰(QL)在提高土壤pH值方面表现出最强的功效，其次是F-SP和草木灰。调节作用随剂量的增加而增强。 (3)在原地试验中，F-SP和QL样地的部分有症状黑松得到明显改善，分别提高了15.9%和5.4%，转化为无症状树。应用 F-SP 可以可持续地缓解 PWD。本文首次进行了评估调节土壤 pH 值对控制 PWD 效果的研究。对于沿海地区人工林的合理规划和可持续发展具有重要的实用价值。
Pine wilt disease (PWD) is a highly destructive disease in forest ecosystems, resulting in extensive forest decline and substantial economic losses. As soil pH plays a critical role in soil microbial activity and significantly impacts the prevalence and severity of diseases, we conducted an experiment to regulate soil pH for alleviating PWD in a black pine (Pinus thunbergii) forest. The result reveals that: (1) The pH of the soil under a P. thunbergii forest was 5.19 ± 0.40, which was significantly lower than that of soils under other vegetation types at 8.53 ± 0.44. (2) Finely ground shell powder (F-SP) was the optimal size for long-term and efficient regulation, but quicklime (QL) exhibited the strongest efficacy in raising soil pH, followed by F-SP and plant ash. The regulation effect strengthened with the dosage amount. (3) In the situ experiments, part of symptomatic black pine in F-SP or QL plots were apparently improved and converted to asymptomatic trees separately by 15.9% and 5.4%. Applying F-SP can alleviate PWD in a sustainable way. This paper presents the first investigation to assess the effects of regulating soil pH for controlling PWD. It holds significant practical value for the rational planning and the sustainable development of artificial forests in coastal regions.