plant systematics meaning in English
植物分类学
Examples
- Plant endemism is the key problem in floristic study . analysis of endemism in a flora has significant implications in demonstrating floristic richness and diversity , the relationship between plants and their environment , and also in conserving biodiversity of the flora . in view of the situation that most of the past studies on endemism were qualitative , this study is the first tentative approach to the introduction of quantitative indices to the analysis of floristic endemism , with an purpose to push the study of endemism from qualitative to quantitative . four quantitative indices are introduced , i . e . level of endemism ( l ) , coefficient of endemism ( c ) , degree of endemism ( d ) and general index of endemism ( a ) . mathematical formulae have been given to each of the above indices and explanations for them have been presented , and the scope of their use in floristic studies has been delimited and exemplified in this paper . the result shows that they are of good applicability . the proposed indices embody full information of plant systematics and plant geography . with the aid of qualitative analysis , the application of the proposed indices will improve the comparability and precision of endemism study in floristics
过去有关特有现象的研究主要限于定性的分析，可比性和精确性较差.该文尝试引入特有现象的定量化指标，以推动特有现象的分析研究从定性水平向定量水平迈进.所引入的4种定量化指标分别是：特有水平、特有系数、特有度以及特有综合指数.对每种量化指标都给出了数学表达式，说明了其区系学意义，例证和界定了这些指标在植物区系分析中的应用，结果表明，它们有良好的适用性.这些指标充分地包含了植物系统学和植物区系学的信息.结合定性分析，这些指标的应用将增强植物区系研究的可比性，使植物区系特有现象的分析达到更精确的水平