index of abundance 中文意思是什麼
index of abundance
解釋
數量指數-
The studying method of flora adopted by this thesis are follows : the statistics of the dominant families and genera, along with single families and genera, abundance index ( ai ), similarity coefficient of genus ( scg ), floristic spectrum analysis ( fsa ), principal components analysis ( pca ), as well as agglomerative classification analysis ( aca )
16 ；單種屬占總屬數的39 39 ，其種數僅占總種數的門26 ；而6個優勢科中所含的種數佔到總種數的903 ， 9個優勢屬中所含的種數占總種數的47 -
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。 -
Many studies had attempted to characterize chemical weathering process by focusing on geochemisty of river particulate and sediment. the sediment geochemistry may reflect and compare with the carbonates and silicates weathering degree by introducing the chemical index of alteration ( cia ) and new sediment index of variation ( siv ) and elemental molar abundance ratio of the sediment. the one main objective of this study would provide and compare the relative weathering intensities of silicates and carbonates with the different basins
2沉積物地球化學與化學風化進程和機械剝蝕率化學風化指數與化學風化率屬于表徵化學風化作用意義不同的函數，前者為相對概念反映流域巖石在原巖基礎上己發生淋溶作用的深度，主要受到了氣候因子的深刻影響（中國流域沉積物化學風化指數由北到南呈有規則的遞增序列，氣候因子對風化進程的影響掩蓋了巖性的巨大差異） ，而化學風化率含義是指單位流域面積巖石風化淋溶產生的離子絕對總量。 -
Considered that the maturity of deep - formation source rocks is relative high and the practical tested geochemical index ( remnant organic carbon, hydrogen index etc ) can not objectively reflect the original abundance and original hydrocarbon - generating potential of organic matter in source rocks, original hydrocarbon - generating potential and original organic carbon of organic matter are restored from progressive recurrence using chemical kenetic models to calculate hydrocarbon - generating rate in this paper
本文利用化學動力學模型計算的生烴率，建立並實現了通過逐步遞推來恢復有機質的原始生烴潛力和原始有機碳。研究結果表明，松遼盆地北部深層恢復后的生烴潛力可達到恢復前的46倍，原始豐度可達到恢復前的2 . 2倍。
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