绿春县野生潭清苏铁资源分布调查及保护对策

Distribution and Protection of Wild Cycas tanqingii in Luchun County of Yunnan Province

潭清苏铁是仅分布于云南省绿春县境内和越南黑水河流域的苏铁属植物一特有种．2008年3月采用样方调查法，分别在潭清苏铁分布区域的东、南、西、北4个区域5个海拔带共设立了20m×10m的样方85个，共记录到潭清苏铁633株，其中球茎〉20cm的2株，球茎10～20cm的21株，球茎〈10cm的610株，幼苗380株；成年株69株，开花株15株．并对其生境现状、保护状况及保护对策进行了分析．

Cycas tanqingii is an endemic species distributed in Luchun county of Yunnan province and Heishuihe valley in Vietnam. The resource of this species was investigated in March 2008 by using sample plot method. Totally 85 sample plots were set at 5 areas with different altitudes, the plot size was 20m × 10m. During this investigation, 633 individuals were recorded, among which, 2 trees with stem-bulb 〉 20cm, 21 trees with stem-bulb of 10 × 20cm, 610 trees with stem-bulb 〈 10cm, there were 380 seedlings. Sixty-nine individuals were mature trees, 15 individuals were in flowering age. According to the investigation results, the current status of this species including its habitat and conservation was summarized, and some strategies for future conservation were analyzed.