%A Zhou Yue, Jin Zhenzhou %T A RESEARCH ON THE VEGETATION TYPES OF THE DRY-HOT RIVER VALLEY IN YUANMOU I.UNITS BELOW ASSOCIATION %0 Journal Article %D 1987 %J Plant Diversity %R %P 1-3 %V 9 %N 04 %U {https://journal.kib.ac.cn/CN/abstract/article_32250.shtml} %8 1987-08-25 %X According to the method of the French--Swiss phytosociological school, and through the test of principal componcnt analysis, a systcmatical resc-arch on the vegetation of the dry-hot riyer valley in Yuanmou has been underta- ken, in which the main associations and their units have been accepted as follows: Ass. I Hcteropogonetum contorti,Subass. 1 bothriochloetosum,Fac. (1 ) Rumex hastatus Subass. 2 cymbopogonetosum ,Ass. E Hyparrhenietum eberhardtii,Ass. III Bothriochloetum pertusae