摘要
通过对杂木林（山脊）及取代杂木林的杉木丰产林（山坡）土壤微生物数量及活性连续两年周期的研究，结果表明；杉木林和杂木林土壤微生物总数、细菌、真菌、放线菌数量及土壤呼吸作用强度、氨化作用、纤维素分解作用强度具有明显季节变化，夏季和春季土壤微生物数量和活性较大，秋季次之，冬季最低．土壤微生物季节变化与林木年生长发育规律相吻合．与山脊上保留杂木林相比，杉木林（山坡）土壤有机物转化和合成强度有一定程度下降．
The amount and activities of soil microorganism in broad-leaved stand (rideg) and 70-yearold fast-growing,highyield Chinese fir plantation (hillside),which was originally occupied by hardwoods,were determinated in the two consecutive years in Anchaoxia,Xihuo,Nanping.The results showed that the tatol amount of mictoorganism,such as bacteria,fungi and actinomyces,the intensity of respiration, ammomification and decomposition of cellulose all displayed seasonal change in broad-leaved stand and Chinese fir plantation.The amount and its activities of microorganism appeared to be the greatest in Summer and Spring,the second in Autumn,the least in Winter.The seasonal change of soil microorganism coincided with the law of yearly growth and development for tree.The intensity of decomposition and recomposition of organic matter in Chinese fir plantation (hillside) droped to some extent compared with the original broad-leaved stand (ridge).
出处
《福建林学院学报》
CSCD
1996年第1期9-13,共5页
Journal of Fujian College of Forestry
基金
福建省自然科学基金
关键词
杉木林
杂木林
土壤微生物
季节变化
Chinese fir
broad-leaved stand
soil microorganism
seaeonal change
