种多样性 meaning in English
species diversity
Examples
- Changes of species diversity on degenerated steppe after light harrow
退化草原轻耙处理过程中植物种多样性变化的研究 - Acoording to the comparison among bird species in five different habitats in jinzhongshan , the results indicate that the highest bird species diversity index is in scrub and farmland ( 3 . 04 ) , and the lowest in water area ( 2 . 14 )
本文还对金钟山鸟类保护区的5种不同生境类型的鸟类种类组成作了比较，结果表明灌丛农田的鸟种多样性指数最高，为3 . 04 ；水域的鸟种多样性指数最低，为2 . 14 。 - The results were following : ( l ) generally , all four indices showed the similar variation patterns in species diversity ; ( 2 ) generally speaking , the order of species diversity indices changed with the pattern : shrub layer tree layer herb layers ; ( 3 ) the species diversity of evergreen broadleaved forests was larger than that of warm conifer forests ; ( 4 ) the species diversity of forests in meizi lake area has been affected by human factors
结果表明： ( 1 )梅子湖森林植被样地物种多样性测度的结果，上述4种指标总体上表现出相同的变化趋势。门）总体看来， 14个样地的物种多样性指数在群落不同层次的变化规律为：灌木层乔木层草本层。 （ 3 ）不同植被类型的物种多样性特征是：常绿阔叶林暖性针叶林。 - The research results mainly show : ( 1 ) the ecological degradation characteristics of wuxi county include : some soil is thin and barren and its water and fertility conservation abilities are poor , gradual degradation of soil results in decrease of vegetation diversity and the vegetation community structure gradually inclines tc simplicity from complexity . the types of soil and water loss in wuxi county mainly involve surface erosion and gully erosion . according to investigation , surface erosion area occupies 80 % or so or erosion area , in which the slope farmlands surface erosion area accounts for about 70 % of farmland erosion area
研究结果主要包括： ( 1 )巫溪县生态退化特征表现：作为生物生长基质的部分土壤薄而贫瘠，保水保肥能力差，部分地区基岩裸露，土壤的不断退化导致植物种多样性减少，植物种群结构逐步由复杂趋向简单化；县内水土流失的类型主要包括面蚀和沟蚀两大类，据调查，面蚀面积占侵蚀总面积的80左右，其中坡耕地面蚀占耕地侵蚀面积的70左右。