子午岭林区中华鼢鼠（Myospalax fontanieri）危害因素调查研究

摘要

对子午岭林区中华鼢鼠危害因素进行了调查研究,结果表明：中华鼢鼠危害程度与不同林龄结构、土层厚度、坡向有关.中华鼢鼠的危害随着林地年龄的增加呈现出先略微升高（≤5a）、后降低的趋势;随着林地土层厚度的增加而提高;不同坡向的危害程度由高到低为半阴坡、半阳坡、阴坡、阳坡.%The factors of Chinese zoker's damage were surveyed and researched.The results suggested that : the Chinese zokor's damage was related with the forest age,soil depth and slope orientation.With the increase of forest age,the damage of Chinese zokor was a slight rise in the first(forest age ≤ 5a),and then decreased;the damage of Chinese zokor was enhanced with soil depth increase;the sequence of damage level from high to low is semi-shade slope,semi-sunny shade slope,sunny slope.