CAJ | 학술논문

采用烘干法和环刀法对土壤物理性质进行测定,重点了解岷江上游山地森林/干旱河谷交错带的不同植被类型下0~40 cm土壤含水量的变化。经过2007年4月、7月、9月、11月4个不同时期的测定,研究表明：同一植被类型下（除灌木林地）土壤含水量9月的最大,与当地的雨季呈现同增同减的关系,而灌木林地下土壤含水量呈现4—11月持续增加的变化。在同一月份中,不同植被下的土壤含水状况为：次生林地〉杨柳混交林地〉灌木林地〉针阔混交林地〉刺槐林地〉陡荒地〉平荒地〉岷江柏林地的变化关系,但是在9月和11月中,灌木林地下的土壤含水量却又远远高于其他植被下的土壤含水量。
채용홍간법화배도법대토양물이성질진행측정,중점료해민강상유산지삼림/간한하곡교착대적불동식피류형하0~40 cm토양함수량적변화。경과2007년4월、7월、9월、11월4개불동시기적측정,연구표명：동일식피류형하（제관목임지）토양함수량9월적최대,여당지적우계정현동증동감적관계,이관목임지하토양함수량정현4—11월지속증가적변화。재동일월빈중,불동식피하적토양함수상황위：차생임지〉양류혼교임지〉관목임지〉침활혼교임지〉자괴임지〉두황지〉평황지〉민강백임지적변화관계,단시재9월화11월중,관목임지하적토양함수량각우원원고우기타식피하적토양함수량。
Through analyzing the physical properties of soil,drying method and cutting ring method were used to determine,emphasising to know the change of 0～40 cm soil water content of different vegetation types in dry-hot valley and mountain forest in upper reaches of the Minjiang River.Through determining soil water constent in April,July,September and November,the results showed that the soil water content got maximum value in September under the same vegetation type except the shrub land,and appeared positive correlation with rainy season in this area,under the shrub land it constantly increased from April to November in 2007.In the same month,the status of soil water contents under different vegetation types were：secondary forestpopulus mixed with salixshrub landneedle-broad mixed forestblack locust foreststeep waste landflat waste landCupressus chengiana forest,but in September and November,the soil water contents under the shrub land were more than that under the other vegetation types.