四川省甘孜州菌草资源现状及其开发利用建议

Status and Development Suggestions of Juncao Resources in Garze Pre⁃fecture,Sichuan Province

通过野外调查与资料整理等方式,对甘孜州菌草种类及资源现状进行了分析。结果表明:甘孜州菌草资源有5目5科13属13种,其中蕨类植物、被子植物种数分别占资源总种数的7.69%、92.31%。被子植物中单子叶植物、双子叶植物种数分别占资源总种数的76.92%、15.39%,禾本科(Gramineae)有9属9种,是绝对优势科。州内菌草植物区系包含9类,其中热带成分所占比例最大(53.85%),其次是温带成分(23.08%)。垂直空间内,菌草科、属、种数自下而上均呈先缓后陡的下降趋势,1000~3000 m资源最丰富;水平空间内,泸定、康定、巴塘、九龙、雅江等地资源最丰富,东西部高山峡谷最适宜菌草生长。州内菌草现多用于牲畜饲料与旅游观赏。针对甘孜州菌草资源现状,对其开发利用提出了四点建议。

Through feild investigation and data compilation,the species and resource status of Juncao in Garze Prefecture were analyzed.Results showed that,totally 13 species of Juncao were found in Garze Prefecture belonged to 13 genera,5 families and 5 orders.Among them,the number of ferns and angio⁃sperms accounted for 7.69%and 92.31%of the total number of species respectively.The monocotyledon⁃ous and dicotyledonous species of angiosperms accounted for 76.92%and 15.39%of the total number of species respectively.There were 9 genera and 9 species in Gramineae,which was the absolute dominant family.Gegraphically,the Juncao resources contained 9 areal-types in Garze Prefecture,most of which were distributed in tropical zone(53.85%),followed by temperate zone(23.08%).In the vertical space,the numbers of Juncao families,genera,and species showed a downward trend of slowly decreasing first and then suddenly decreasing from bottom to top,and the resources were most abundant in 1000~3000 m.In the horizontal space,Luding,Kangding,Batang,Jiulong,Yajiang had the richest resources,and the eastern and western alpine valleys were most suitable for the growth of Juncao.Juncao in Garze Prefec⁃ture were now mostly used for livestock feed and tourism.In view of the current situation of Juncao re⁃sources in Garze Prefecture,four suggestions were put forward for its development and utilization.