地椒群落生物量初步研究  

A PRELIMINARY STUDY ON THE BIOMASS OF THYMUS MONGOLICUS COMMUNITY

作　　者：朱志诚[1] 贾东林[1] 

机构地区：[1]西北大学生物系

出　　处：《草业科学》1995年第2期13-16,共4页Pratacultural Science

基　　金：国家自然科学基金

摘　　要：对陕北森林草原地带由于水蚀、风蚀和过度放牧形成的一类次生草原群落──地椒群落６、７月分的地上和地下生物量及其空间变化进行了研究。结果表明，地椒群落６、７月份地上生物量分别为８７．７ｇ／ｍ２和７７．１３ｇ／ｍ２，地下生物量是２３６．４５ｇ／ｍ２和１６０ｇ／ｍ２。７月地上和地下生物量都偏低，这与地椒生长发育节律的物质分配有关。The paper studied the aboveground and underground biomasses and spacial change ofThymus mongolicus community in June and July.The result showed that the aboveground biomass was 87. 7g/m2 in June and77. 1 3g/m2 in July; The underground biomass was 236. 45g/m2 in June and 160g/m2 in July. The twobiomasses in July were lower than in June,this related to the material distribution of growth and developme-nt rhythm of Thymus mongolicus.

关 键 词：森林草原 牧草 地椒群落 生物量 

分 类 号：S812.3[农业科学—草业科学]