查询词典 evenness

ResultThe species and the quantities of pests were smaller and the diversity index and evenness of insect community were higher in bagged apple orchard than in unbagged apple orchard.

结果白水地区套袋果园与常规果园相比较，套袋果园的害虫种类和数量均较少，昆虫群落的多样性指数和均匀度均比常规果园高。

It is shown in this paper that distributions of electric fields in five measuring slots of Uster Evenness Tester,and the errors caused by uneven electric fields were analysed.

文摘：实测了乌斯特纱线均匀度试验仪上5个电容测量槽的电场强度分布，分析了由测量槽不均匀电场所引入的误差。

3The study on the diversity of soil microbial community of Pinus bunging Zucc.et Endl 20 diferent microbial community in the soil were analyzed and compared by species richness index,diversity index and evenness index.The result showed that Species Composition,Quantity Variation and Bio-diversities ect.of soil microbial community differed.

3白皮松土壤微生物群落多样性研究运用丰富度指数、均匀度指数和多样性指数对不同生境的土壤微生物进行分析比较，结果表明，分布在20个样地的微生物各自组成了相应的群落，群落内属的种类、数量组成、多样性、均匀性等都是不同的。

The results show that the transgenic hybrid poplar can decrease the number of defoliating insects and lower the dominance of the dominant species, and increase the insect diversity and the evenness of insect pest subcommunity.

结果表明，转基因741杨能明显降低群落中食叶害虫的数量，同时，使群落中食叶害虫优势种的优势度降低。

According to landscape ecology, in accordance with the theory of urban planning, ecology and landscape, and based on qualitative and quantitative analysis, the paper firstly analyses landscape ecological construction indicators about green space such as landscape composition, landscape diversity index, landscape dominance index, landscape evenness index, landscape fragmentized degree, landscape corridor density, and public green plot area etc., and start the research of landscape ecological construction of green space system in Zhengzhou.

本文从景观生态学出发，结合城市规划、生态学、园林学等学科理论，采用定性分析与定量分析相结合方法，初次分析了郑州市绿地景观构成、绿地景观多样性指数、绿地景观优势度指数、绿地景观均匀度指数、绿地景观破碎度、绿地景观廊道密度及公共绿地斑块面积等景观生态建设指标，开启了郑州市绿地景观生态建设方面的研究工作。

It hived off thetopic of development and efficiency, it stressed the evenness under the target offairness.

改革开放以前，从总体上看，我国实行的是以地区间平衡为目标的内陆地区重点发展战略。

Under the background of digital DEM of maor mountain area, and through the program of Avenue in Arcview, the result of potential ravine highly inosculates with the real ravine. With the comparison of potential ravine and real ravine, it can reflect the developing tendency of ravine in this area. Through positioning with GPS and investigation in this area, we can divide the potential ravine of this area into three forms, that is parallel ravine area steep ripe ravine area and evenness swamp area. It can provide scientific reference for forest management and tree planting, and it is a new theory to prevent soil and water loss, and carry through the ravine controlling by people.

在数字化生成的帽儿山地区DEM基础上，通过二次开发生成的潜在沟系，具有与现实沟系高度的吻合性，并通过与现实沟系的比较，能客观的反映出该地区沟系发生、发展的趋势，借助于GPS的定位及实际踏查研究，可将帽儿山地区的潜在沟系划分为平行沟系区、陡坡显沟区和平坦沼泽区三种类型，可为合理的森林经营和植树造林提供科学的借鉴，并为防止水土流失，进行沟系治理提供了新的理论依据。

As a part of air intake system, intake manifolds have great effects on the distribution non-evenness of multi-cylinder engines.

进气管作为进气系统中的一部分，对多缸发动机的进气不均匀性有重要的影响。

The evenness index are highest, and the predominant index is lowest. The overgrazed scrub and grass clump has poorest vegetatio n

扰的明油子灌草丛植物种类和节肢动物种类比较丰富，但节肢动物群落优势度最高而均匀度最低；经受或存在放牧干扰的明

Further studies on biodiversity in the reforested land showed that shrub diversity increased but herb diversity decreased with reforested time. The evenness index changed little.

该流域人工林恢复结果表明，林龄的增加，土壤性质变化比较大，总氮含量与种植年龄呈现十分好的线性正相关，土壤质量也有较大的改善。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。