1) homogeneous anomaly index
均匀异常指数
1.
Hemispherical mean monthly abnormal geopotential height fields are divided into hemispherical homogeneous and inhomogeneous parts,and corresponding homogeneous anomaly index ξ and inhomogeneous anomaly index η constructed.
将半球月平均位势高度场异常分解为半球均匀和非均匀两部分,构造了均匀异常指数ξ和非均匀异常指数η。
2) inhomogeneous anomaly index
非均匀异常指数
1.
Hemispherical mean monthly abnormal geopotential height fields are divided into hemispherical homogeneous and inhomogeneous parts,and corresponding homogeneous anomaly index ξ and inhomogeneous anomaly index η constructed.
将半球月平均位势高度场异常分解为半球均匀和非均匀两部分,构造了均匀异常指数ξ和非均匀异常指数η。
3) evenness index
均匀度指数
1.
The results showed that insect species and number were greatly different at different altitude levels and time,and Diptera,Hymenoptera and Coleoptera were more stable dominant populations in all researched ones;insect dominance indexes were different at different altitude levels and time,but insect diversity indexes were close;evenness indexes were slightly higher at mid.
结果表明:昆虫种类和数量随时间和海拔高度的变化而有较大差别,在本次调查中双翅目、膜翅目、鞘翅目在衡山是比较稳定的优势种群;优势度指数因海拔高度、采集标本时间不同而有差异;不同采集时间不同海拔高度的多样性指数相差不大;中海拔地区的均匀度指数在每个采集时间里都较高、低海拔地区的稍高。
2.
And the species diversity index (Shannon-Wiener index H′,Simpson index D) ,the richness index (R0,R1),the dominance index (C) and the evenness index (E) were measured in Calligonum L.
根据野外调查资料,应用生物多样性的原理和方法计测了群落的物种丰富度指数(R0、R1)、物种多样性指数(H′、D)、均匀度指数(E)以及优势度指数(C)以分析中国沙拐枣属天然群落的群落学特征。
3.
Different land use types of vegetation situation in Wufendigou Model of Huangpuchuan watershed were analysed,using diversity index,richness index,evenness index and community structure,respectively.
分别用多样性指数、丰富度指数、均匀度指数和群落的结构特征对皇甫川流域五分地沟试验示范区内不同土地利用类型的植被状况进行分析。
4) evenness index
均匀性指数
1.
The algal diversity of four tributaries of Yangtze River was assessed applying the diversity index, richness index and evenness index.
应用多样性指数、丰富度指数和均匀性指数对长江4条支流水域的藻类多样性进行了评价。
2.
The species diversity index and evenness index are 2.
60 14,均匀性指数为 0 。
5) uniformity index
均匀度指数
1.
The main research included the composition of the algae phytoplankton,biological species,biomass,biological indicator,uniformity index,diversity index and physical-chemical monitor,et al.
研究内容:浮游藻类的组成、生物种类、生物数量、指示生物、均匀度指数、多样性指数及理化对照监测等。
2.
The differences of advantage,diversity index and uniformity index of insect community in different altitude of Jiangping strict of Huping Mountain were analyzed The lowest index of advantage of insect community was in an altitude of 900m,with a slight increase in elevation.
对湖南壶瓶山江坪地区不同海拔高度的昆虫群落优势度、多样性指数和均匀度指数的差异进行了分析。
6) variation index
不均匀指数
1.
Two dimension Fast Fourier Transform (2DFFT) is introduced to get the geometry feature and amplitude feature of basis weight variation ,which are based to construct the variation index of paper sheet to express the sheet formation.
通过光吸收方法测量纸页局部定量，得到定量在纸页平面的二维分布函数，通过傅立叶变换得到纸页局部定量变化的几何分布特征和幅度分布特征，并以此为基础构成表征纸页均匀的特征参数—不均匀指数。
补充资料：迁移效率指数、偏好指数和差别指数
迁移效率指数、偏好指数和差别指数
迁移效率指数、偏好指数和差别指数迁移效率指数是用于测定两地间人口迁移效率的指标。它是净迁移对总迁移之比。计算公式为:EIM一摇寿纂拼又‘。。上式中，}人么夕一材方}为i、]两地净迁移人数;从少+材户为i、]两地总迁移人数;El入了为迁移效率指数。 EIM的取值范围为。至100，如某一地区的值越大，反映迁移的的影响也越大。如果计算i地区与其他一切地区之间的人口迁移效率指数EIM厂，则: }艺材。一芝Mj、}EIM汀艺。+乏M，(j笋i) 迁移偏好指数是从一个地区向另一地区的实际迁移人数与期望迁移人数之比。计算公式为:____M.___材尸2行一:一二子一一不石一二，么M“ 了厂‘.厂‘、八 }二不十二六二1 、厂厂7上式中，M“为从i地迁到j地的实际迁移量;艺材。为总的人口迁移量;尸为总人口;M尸I，j为迁移偏好指数。通过计算迁移偏好指数，可以反映各地区的相对引力。 迁移差别指数是反映具有某种特征的迁移人口与非迁移人口区别的指数。例如，专业技术人员的人数所占比重，各种文化程度人数所占比重等，以便研究人才流失和其他间题。计算公式为:M‘从IMD、一翌不丝xl。。 .义V‘ N上式中，M为迁移人数;M，为具有i特征的迁移人数;N为非迁移人数;N‘为具有i特征的非迁移人数;了八了D、为迁移差别指数。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条