CAJ | 학술논문

为探讨不同择伐强度对人工杉阔混交林土壤温度的影响，分别对人工杉阔混交林不同择伐强度（中度34．4％、强度51．2％和极强度69．5％）3 a后的林地土壤温度（深度0－20 cm）进行实测与分析。结果表明，中度和强度择伐下，土壤温度升高范围为0．2－1．2℃，升高幅度在5．0％以内；极强度择伐下，土壤温度升高范围为1．3－3．3℃，升高幅度在5．3％－10．8％；林地土壤温度随择伐强度的增大而升高，0和5 cm的土壤温度升高幅度较大，尤其是极强度择伐。林地0－15 cm土壤温度与择伐强度具有显著相关性，而林地20 cm土壤温度与择伐强度具有相关性但不显著；一元二次方程能较好地模拟土壤温度与择伐强度的关系。不同强度择伐3a后，林地土壤温度随土壤深度的增加而降低，符合指数方程，且呈显著负相关。
위탐토불동택벌강도대인공삼활혼교림토양온도적영향，분별대인공삼활혼교림불동택벌강도（중도34．4％、강도51．2％화겁강도69．5％）3 a후적임지토양온도（심도0－20 cm）진행실측여분석。결과표명，중도화강도택벌하，토양온도승고범위위0．2－1．2℃，승고폭도재5．0％이내；겁강도택벌하，토양온도승고범위위1．3－3．3℃，승고폭도재5．3％－10．8％；임지토양온도수택벌강도적증대이승고，0화5 cm적토양온도승고폭도교대，우기시겁강도택벌。임지0－15 cm토양온도여택벌강도구유현저상관성，이임지20 cm토양온도여택벌강도구유상관성단불현저；일원이차방정능교호지모의토양온도여택벌강도적관계。불동강도택벌3a후，임지토양온도수토양심도적증가이강저，부합지수방정，차정현저부상관。
In order to explore the effects of different selective cutting intensity on soil temperature of Cunninghamia lanceolata-broadleaved mixed plantation, the measurement plots of different selective cuttings (medium intensity 34.4%, high intensity 51.2%, and over-high intensity 69.5%) were established to measure the shallow (0-20 cm) soil temperature, and its features and changes were analyzed three years later.The results showed that the mean soil temperature rose in the range from 0.2℃ to 1.2 ℃ under the selective cuttings of medium and high intensity , but the magnitude of change was less than 5%.The mean soil temperature rose in the range from 1.3 ℃to 3.3 ℃under the selective cutting of over-high intensity, with the magnitude between 5.3% and 10.8%.The soil temperature rose with the selective cutting intensity increasing under cutting there years later .The soil temperature of 0 cm and 5 cm changed significantly , especially under over-high selective cutting intensity .The soil temperature in the depth from 0 cm to 15 cm had significant correlation to the selective cutting intensity , but the correlation was insignificant in the depth of 20 cm, so the quadratic equation was ideal to simulate the correlativity between soil temperature and selective cutting intensity .Three years after the selective cutting with different intensities , the soil temperature decreased with increasing of the soil depth , displaying a significant negative correlation , and consistent with the exponential equation .