高山特有蔬菜资源——卵叶韭的调查

Survey on Distribution Status of Allium ovalifolium Hand.-Mzt.Resources in Highland

为了解高山特有蔬菜卵叶韭资源现状,以湖北五峰土家族自治县大花坪的卵叶韭为重点,采用走访调查法和典型样地调查法,对大花坪卵叶韭的主要栖地进行系统调查。结果表明:卵叶韭主要分布在海拔1800～2100m山坡的阔叶乔木和灌木混交林下,地被植物盖度在35%～80%。大花坪卵叶韭面积11.3hm2,最大密度为每平方米228株。该地卵叶韭种群数量和生境减少很快,有濒临灭绝的危险,亟待加强保护措施研究。

In order to comprehend the present status of Allium ovalifolium Hand.-Mzt.germplasm resources in Wufeng Dahuaping,a systematic investigation on the main habitats of Allium ovalifolium Hand.-Mzt.was conducted based on ethnobotanist theory,combined with field study and representative plot survey.The results showed that Allium ovalifolium Hand.-Mzt.in Dahuaping distributed mainly under the deciduous broad leaf mixed forest where the altitude was 1 800-2 100m.The ground coverage by plant was 35%-80%.The total area of Allium ovalifolium Hand.-Mzt.in this area was 11.3hm 2.The maximum density was 228 plants per square meter.The population number decreased very quickly,which indicated that Allium ovalifolium Hand.-Mzt.was facing extinct danger and studies on protecting measures must be strengthened immediately.