- evenness index
- evenness indices
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均匀性指数的英文
例句与用法
- The t - test result shows that the species diversity index , evenness index and consume biomass are no significant differences between 12 years fore - and aft
T检验结果表明，多样性指数、均匀性指数的消费生物量， 12年前后的差异不显著( p 0 。 01 ) 。 - Principal components analysis showed that the first four principal components variance accumulation contribution rate amounts to 89 . 53 % , which reflected most of the variance information as listed characters above
通径分析结果显示，直接通径系数大小排序，产量因素性状依次为单株成铃单铃子棉重子指衣分；纤维品质性状依次为纺纱均匀性指数麦克隆值整齐度伸长率比强度2 . 5 %跨长。 - The research result of insect community development indicate : the differences to quantity and richness of pest , natural enemy and whole insect community among experiment sections are distinct . the dynamic uptrend of diversity and evenness indexes between harmless section and general section are analogical , but that of blank section and two manage sections is different
昆虫群落动态研究结果表明：各试验区间害虫、天敌及整个昆虫群落的数量与丰富度差异明显，无公害区与常规区各群落多样性指数、均匀性指数动态变化趋势一致，空白区与两处理区多样性指数、均匀性指数动态变化趋势差异较大。 - This showed that the exploity by human beings was tendentious and the management was increasing , which improved the socioeconomic benefits of the region on one hand , but decreased the landscape diversity , leading to the decrease of eco - environmental benefits of some areas in the basin on the other hand
( 4 )景观多样性指数和均匀性指数下降，优势度指数增高，表明人类对该地区土地开发利用的有目的性和管理程度的不断加强，这种结果一方面增加了地区的经济效益，另一方面也会降低该地区的生物生境的多样性。