群叢指數 的英文怎麼說
中文拼音 [qúncóngzhǐshǔ]
群叢指數
英文
index of association-
Results demonstrate that with the succession going on from herbosa shrubs coniferous forest theropencedrymion evergreen broad - leaved forest, abundance and diversity index of species, biomass and productivity of vegetation all show a rising trend prior to the formation of a mature and stable biotic climax
結果表明:隨著草叢灌叢針葉林針闊混交林次生常綠闊葉林正向演替的進行,在未形成成熟而穩定的頂極群落之前,物種豐富度、物種多樣性指數、植被生物量及生產力都呈增大趨勢。We studied its distribution pattem by using the following measures f the test for fitting to the poisson, negative binomial and neyman a distribution. at the same time, we use negative binomial parametef, dispersal index, patchiness index, cassie s index and clumping index, estimated the aggregation intensity. the results showed that the distribution pattern is typically aggregated, and the intensity of aggregation vari
經統計分析,青島百合復合種群、各局部種群內個體的分佈格局離散分佈擬合的結果符合負二項分佈;各聚集強度參數中,叢生指標)和cassie指標(二k )均大於o ,負h項參數限)均較小,擴散系數k卜擴散型指數)和聚塊性指標( m m )均大於1 ,以上這些表明各個局部種群的分佈格局都為聚集分佈。
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