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.
出处
《草业科学》
CAS
CSCD
北大核心
1995年第2期13-16,共4页
Pratacultural Science
基金
国家自然科学基金
