摘要
在系统分析香草兰生物学特性的基础上，选取了与其关系密切的年均温、极端低温、最冷月均温、年降水量、年雨日数、年相对湿度和年日照时数等７个因子作为指标，以我国引种试种成功地指标之较低水平为生产性种植范围的下限值，以盛产地（参考原产地）之平均水平为上限值，采用灰色理论中的定权聚类方法对海南岛香草兰生态适宜性进行了研究。结果表明，香草兰最适宜种植区和适宜种植区分别约占全岛总面积的１１％（分别含３县市和２县市），基本适宜种植区约占４４％（含８县市），不适宜种植区约占３３％（含５县市），比较符合实际。
Astudywas conductedontheecologicaladaptability of Vanilla planifolia on Hainan Is-land byusing the cluster method of fixed weight in grey theory based o on a systemativeanalysis of its biological characteristics. Seven climatic factors were chosen as divisional in-dexes . including mean annual temperature. extremely low temperature . monthly minimumtemperature. annual precipitation.annual precipitation days.annual relative humidity and an-nual sunshine-hour. and low level of indexes obtained from the place of successful introduc-tion and trial-planting in China was considered as the lower limit of the production-scaleplanting range while the mean level of indexes from the places of major producing counties(referring to the places to which Vanilla planifolia is indigenous) as the higher limit compari-son of the data with actual cnnditions indicates that results are identical with reality. Thestudy shows that the planting area with optimum and good. general. and worst accounted re-spectively for 11%(3 and 2 counties or cities separately). 44%(8 countles or cities). and33%(5 counties or cities) of the total area in Hainan Island.
出处
《热带作物学报》
CSCD
1995年第2期84-92,共9页
Chinese Journal of Tropical Crops
关键词
香草兰
灰色理论
生态适宜性
类型
Vanilla planifolia Grey theory Ecological adaptability Typical regional division
