The adaptability of the national sugarbeet variety test in 2002 was analyzed through statistical parameter of variance and coefficient of variability from variety locus of test data 摘要通過對(duì)2002年國家甜菜品種區(qū)城試驗(yàn)結(jié)果的統(tǒng)計(jì)分析,求得各參試品種的適應(yīng)性統(tǒng)計(jì)參數(shù)品種地點(diǎn)互作方差估計(jì)值和變異系數(shù),據(jù)此對(duì)參試品種進(jìn)行適應(yīng)性分析。
The studies of in - layer heterogeneity are as follows : the text depicts the characteristics of heterogeneity by calculating the coefficient of variability , kmax / k and k . max / k . min of sand layers of different sedimentous microfacies ; divides interlayer into two types , and counts their numbers , thickness , frequency and density of a single sand layer according to the characteristics of lithology and logging , finally summarizes the characteristics of interlayer distributing ; sets up five in - layer heterogeneity models and points out that the primary models are model a and c . the studies of between - layer heterogeneity are as follows : the text depicts sand layers " growth and distributing conditions by calculating the lamination factor , sandstone density and overlap coefficient ; makes certain the lithology and thickness of interlayer by the method of contrasting the typical curves 層內(nèi)非均質(zhì)性研究,通過計(jì)算不同沉積微相砂體滲透率的變異系數(shù)、突進(jìn)系數(shù)以及級(jí)差來說明主要儲(chǔ)集微相的非均質(zhì)特征;據(jù)巖性及電性特征,將層內(nèi)夾層分為兩類,統(tǒng)計(jì)單砂層段內(nèi)夾層的個(gè)數(shù)、累積夾層厚度、夾層頻率及夾層密度,并且根據(jù)夾層頻率及密度平面分布圖統(tǒng)計(jì)出每層的頻率相對(duì)高值區(qū)和低值區(qū),總結(jié)夾層分布特征;根據(jù)物性參數(shù)隨深度的變化趨勢(shì)建立了五種儲(chǔ)層層內(nèi)物性非均質(zhì)模式,指出研究區(qū)內(nèi)以a型和c型模式為主。