Position: Home > Articles > Soil microbial biomass in degenerated and recovered grasslands of Huangfuchuan watershed.
Chinese Journal of Ecology
2005,24
(5)
578-580+584
皇甫川流域退化草地和恢复草地土壤微生物生物量的研究
作 者：
邵玉琴
;敖晓兰
;宋国宝
;刘瑞凤
;李华
单 位：
内蒙古大学生命科学学院;省部共建国家重点实验室培育基地-内蒙古草地生态学重点实验室 呼和浩特010021
关键词：
内蒙古皇甫川流域;退化草地;恢复草地;土壤微生物生物量
摘 要：
土壤微生物生物量常被作为植物所需营养元素的转化因子和资源库,是表明土壤发育状况和生化强度的一项主要指标。在内蒙古伊盟准格尔旗皇甫川流域,对退化草地和恢复草地土壤微生物生物量进行了研究。结果表明,土壤微生物生物量的垂直分布依次为0～10>10～20>20～30>30～40>40～50cm,随土层加深而递减;0～10cm土层细菌和丝状微生物生物量超过其他土层;恢复草地各土层中的土壤微生物生物量均高于退化草地;恢复草地的土壤微生物生物量与土壤肥力密切相关。
译 名：
Soil microbial biomass in degenerated and recovered grasslands of Huangfuchuan watershed.
作 者：
SHAO Yuqin,AO Xiaolan,SONG Guobao,LIU Ruifeng,LI Hua (College of Life Sciences,Inner Mongolia University,Hohhot 010021, China; Key Laboratory of Inner Mongolia Grassland Ecology,Hohhot 010021, China)
关键词：
Huangfuchuan Watershed,degenerated grassland,recovered grassland,soil microbial biomass.
摘 要：
Soil microbial biomass was investigated in degenerated and recovered grasslands of Huangfuchuan watershed,in Inner Mongolia,China.The results showed that the vertical distribution of total soil microbial biomass in both degenerated and recovered grasslands was in order of 0～10>10～20>20～30>30～40>40～50 cm,which decreased with soil depths.Total bacteria and filamentous microbial biomass in 0～10cm were more than that in the other soil layers.Compared with the degenerated grassland,the biomass of soil microbial was higher in the recovered grassland.The distribution characteristics of soil microbial biomass in natural grassland was significantly related to soil fertility factors.The status of recovered grassland was superior to that of degenerated grassland,which meant that to recover grassland is the key measure to improve soil quality and to protect the ecological environment of Huangfuchuan watershed.
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