diversity index

The diversity index of zooplankton increased with the increase of macrophyte biomass.

随着湖泊水草生物量的增加,浮游动物的多样性指数也随之而增加.

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The essential elements of the spatial structure of landscape are patch, corridor, matrix by GIS, we study on landscape of soil erosion about following parameter: ratio of area, diversity index, dominance index and multiplicity.

在GIS支持下研究了宜昌地区土壤侵蚀强度景观的面积对比、多样性指数、优势度指数和多度等参数。

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Shannon landscape diversity index increases from 1.53 to 3.14 means landscape variety increased.

1.53到3.14，景观多样性增加。

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The results showed that the first four DCCA axes were significantly correlated to agricultural land ratio, landscape diversity index, forest land ratio, and landscape contagion index.

结果表明，DCCA排序的前4轴分别与农业用地比率、景观多样性指数、森林比率显著相关。

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The data which have been collected for the last three years are used for biological evaluation of the river itself, and to calculate Trent biotic index, Chandler score system and Shannon diversity index.

根据三年来所收集到的资料，计算了Trent生物指数，Chandler记分制以及Shannon多样性指数，并对图们江的污染状况作出生物学评价，上游地段属于清洁水到中污染；

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The seasonal ecological features of phytoplankton community including its species composition, population size, dominant species, saprobic indicator, diversity index and diatom biotic index were preliminarily studied at 22 sampling stations in the Chaohu Lake, Anhui Province.

对巢湖浮游植物在22个样点，四季采样，进行了种类组成、种群数量、优势种、污染指示种，多样性指数及硅藻指数等群落生态学的初步研究。

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Theres is tile lowest diversity index in the climax Desert-glasslands-Crested Larkcommunity.

顶极群落荒漠草原—凤头百灵群落多样性指数最低.

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Both the species richness index and diversity index of the community were low.

群落物种丰富度和多样性指数低.

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The landscape diversity index, evenness increased and the dominance index decreasing.

景观多样性指数增加、均匀度增加，优势度下降，破碎化严重。

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In addition, the diversity index of winter bird in the region was 2 000 8 and evenness index 0 531 9.

南洞庭湖冬季鸟类的多样性指数为20008，均匀性指数为05319。

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Along with altitude increasing, predominant index generally increases, but species diversity index and evenness index decrease.

随海拔升高, 优势度指数普遍递增, 物种多样性指数和均匀度指数递减.

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Phytoplankton Shannon Wiener diversity index varied between 0 97 and 2 75, with the maximum found in August.

多样性指数是：A>B>C；浮游植物香农-威纳多样性指数为0.97～2.75。

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Along with the restoration stages, the dominance index decreased while the species richness index, evenness index and Shannon-Wiener diversity index increased gradually and come to the highest value in the plots after 32-year restoration.

土壤种子库物种多样性的变化表现为，随着演替的进行，优势度指数逐渐减小，而丰富度指数、均匀性指数和Shannon-Wiener多样性指数逐渐增大，恢复到32年时达到最大。

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In 2004, for Yichun, ecological surplus is 13.2 ha/ cap, ecological diversity index is 0.88 and development capacity index is 1.26, ecological footprint of 10~ 4 yuan GDP is 2.61 ha;

宜春2004年生态盈余1.32ha/cap，生物多样性指数0.88，发展能力指数1.26，万元GDP生态足迹2.61ha；

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The results of this study suggest that modified fractal dimension is superior to fractal dimension and diversity index in describing landscape diversity at both the individual patch and landscape levels.

此外，从本项研究所用的三种格局分析方法的结果来看，修改分维数Dm比分维数D和景观多样性指数H能更好地描述景观和斑块的空间格局。

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Both the richness and diversity index of soil bacteria tend to change with soil development obviously.

土壤细菌丰富度，多样性指数均随土壤发育呈现明显的时间趋势。

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The change of diversity index of patches was not obvious.

各种斑块的多样性指数变化不明显.

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Spatial diversity index was cited to describe the wild life habitat pattern quantitatively. And the habitat pattern change of wild animals and red-crowned cranes ( Grus japonensis), as indicator species, between 1988 and 1998 was analyzed.

引用空间多样性指数（S d）对本区野生动物生境格局和指示物种丹顶鹤的生境格局进行了定量描述，并分析了其十年间的生境格局变化。

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Pattern indexes such as AI, CONTAG, SHDI, and SHEI and so on have good correlations with aridity index. Climate in upper and middle reaches is relative humid, degrees of fragmentation; diversity and evenness here are much higher than lower reaches.

流域格局指数AI、CONTAG、SHDI、SHEI等与干燥度指数有很好的相关性；中上游地区气候相对湿润，景观破碎化程度较高，多样性、均匀度明显高于下游。

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The results showed that parameters Index of Diversity(ⅰ), Variance of Phenotypic Frequency ( VPF), Variance of Phenotypic Value ( VPV) and Coefficient of Variation ( CV) are more effective on evaluating different methods for core collection selection among 8 studied parameters.

结果表明，在所选8个参数中，多样性指数、表型方差、表型频率方差及变异系数为对比不同核心种质取样方法间优劣的有效参数；

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The distribution of fungi is characterized by in the diameter of 0.25 mm. the smaller the aggregate size, the higher the diversity index.

＜0.25mm，团聚体粒径越小，真菌的多样性指数越高。

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The result showed that the genetic diversity index of all traits were relatively large, grain weight per plant had the highest genetic diversity index, followed by TGW and panicle length.

结果表明：各性状的遗传多样性指数较大，且多样性指数最高是单株粒重，其次是千粒重和穗长；

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The richness, abundance index correction, diversity index and evenness index of the microbial community DNA sequence of Sichuan bacon and Sichuan sausage were changed with storage time.

4四川腊肉和香肠微生物群落DNA序列的丰富度指数、修正丰富度指数、多样性指数及均匀度指数随着加工贮藏时间的变化而变化。

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The Shannon Wiener diversity index in mature phase was the largest, and it got higher with the increase of growth stage.

成熟期原生林Shannon Wiener多样性指数最高，呈现出随生长年代的增加而增大的趋势。

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There was some difference between bacon and sausage in the variation and magnitude of diversity index and evenness index and microbial community DNA sequence.

腊肉和香肠微生物群落DNA序列多样性指数和均匀度指数变化规律及幅度有一定差异。

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The plant diversity index in the low-water period is higher than that in the high-water period, but the plant evenness index in the low-water period is lower than that in the high-water period.

枯水期时河口湿地植物物种多样性比丰水期时高，但其均匀度比丰水期时低；

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The structure of grasshopper community in different environment in Luo River region was compared using species-abundance model, diversity index, similarity analysis, principal component analysis and stepwise regression.

应用种-多度分布模型、多样性指数、相似性分析、主成分（PCA）分析及多元逐步回归等方法比较了洛河流域不同生境的蝗虫群落结构。

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From 1954 to 1990, the diversity index increases from 2.30 to 2.60, the dominance index decreases from 0.59 to 0.45, and the fragmentation index of high quality landscapes increases from 0.33 to 0.42. These changes mostly ascribe to urban land expanding and culture pond enlargement.

从1954年到1990年，景观多样性从2.30上升到了2.60，优势度由0.59下降到0.45，高功能景观破碎度由0.33上升到0.42。

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There was no significant difference of diversity index between the tree layer and the shrub layer.

乔木层与灌木层之间多样性各项指标总体无显著差别.

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The undergrowth vegetation species diversity index of Simpson index, Pielou evenness index and species richness index are all improved after the management measures take in to implementation.

封禁后各项经营措施下的林下植被的Simpson物种多样性指数、Pielou均匀度指数和物种丰富度指数都有所提高。

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