摘要
对腾格里沙漠东南缘包兰线沙坡头地区的人工植被固沙工程系统稳定性进行土壤微生物类群数量的研究,结果表明:1.不同年龄的人工植被沙丘的土壤微生物各类群数量均超过自然流动沙丘。2.36龄和28龄人工植被沙丘的土壤微生物各类群数量的垂直分布与自然被国家沙丘相比基本相似,从微生物各类群数量看,到目前为止,最长年限36龄人工植被沙丘与自然植被固定沙丘相比,还没有达到最稳定程度,人工植被固沙工程尚处在演变过程。
aving researched on the microbial number of artificial plantation-fixed sand dunes of differ-ent ages on Shapotou area of the southeastern margiii of Tengger desert,we got the following re-sults1)microbial number in all artificial plantation-fixed sand dunes is more than that of naturalmobile sand duiie;(2)the vertical distributions of microbial number of the artificial plantation-fixed sand dunes of 36 and 28 years are similar to that of natural stabilized dune. Therefore itshows that the artificial plai1tation-fixed dune of 36 years is not stable enough and it is still underthe processs of evolution.
出处
《内蒙古大学学报(自然科学版)》
CAS
CSCD
1995年第1期75-79,共5页
Journal of Inner Mongolia University:Natural Science Edition
基金
中国科学院沙坡头沙漠科学试验站基金
关键词
人工植被固沙
土壤
微生物
类群数量
artificial plantation-fixed sand dunes microbiaI number in sand dunes shapo-tou