中国针茅属植物的地理分布

本文论述了中国针茅属植物的地理分布、生态特点及其与植被分布的关系。中国针茅属有32种1亚种及4变种，据该属各个种所处环境中的气候和土壤等因素的变化，不同种的分布也各异。属的分布区的类型属于吴征镒(1979)的中国植物区系分区的泛北极植物区中的6个植物亚区，即亚洲荒漠植物亚区，欧、亚森林植物亚区，青藏高原植物亚区，中国-喜马拉雅植物亚区，欧、亚草原植物亚区及中国-日本森林植物亚区。

ON GEOGRAPHICAL DISTRIBUTION OF THE GENUS STIPA L.IN CHINA

The present paper deals with geographical distribution, ecological features and relation of vegetion types of the genus Stipa L. in China. In the genus 32 species 1 subspecies and 4 varietes are recognized in China. Following Wu's floristic regionalization, species of Stipa in China fall into six subkingdoms of the Holartic Kingdom, i.e. , the Asiatic desert subkingdom, Eurasian forest subkingdom, Qinghai-Xizang plateau subkingdom, Sino-Himalayan forest subkingdom, Eurasian steppe subkingdom, and the Sino-Japanese forest subkingdom. Based on the study of morphology, ecology and distribution patterns of the genus it becomes clear that Stipa is an important constituent of steppe vegetation. They are distributed mainly west of moist forest zone, and species of this genus are found in meadow steppe, typical steppe, desert steppe, and alpine steppe, with some species also found in forest-steppe zone and mountain steppe zone.