ordination axis 中文意思是什麼

ordination axis 解釋
定序軸
  • ordination : n. 1. 整理；排列；分數。2. 頒布法令。3. 委任；受委任。4. 【宗教】聖職授任，按手禮。
  • axis : n （ pl axes ）1 軸，軸線。2 【植物；植物學】莖軸。3 【解剖學】第二頸椎，第二脊骨。4 【政治學】軸...
  1. The result of dca ordination shows that diffirent plant communities and their distributing area vary with the environmental grads in the ordination graph when the first axis of dca denotes altitude change and the sencond axis of dca denotes change of water equivalent in the soil

    Dca排序結果表明， dca第一軸反映海拔變化， dca第二軸表示土壤含水量的變化，隨著環境梯度變化，不同的植物群落在排序圖上也有各自的分佈范圍。
  2. The first axis of dca ordination reflects a synthetic environmental gradient, positively correlated with precipitation, humidity, heating, primary productivity, and potential evaporation etc. the second axis of dca represents changes in altitude and longitude

    Dca排序第一軸表現了一個綜合的環境梯度，即從左到右，降水、濕度、熱量、初級生產力、潛在蒸發量逐漸增強， dca第二軸反應了海拔和經度的變化，即從上到下，海拔降低、經度增加。
  3. The dcca ordination improves relativity between species and environmental factors. so it avails to exp lain the ecology meanings of ordination axis. but compared with dca ordination graph, the points distribution of two - dimension graph of dcca ordination is much thicker and more concentrated, which causes the limit of plant community types much more obscure

    Dcca排序大大提高了種與環境的相關性，更有利於排序軸生態意義的解釋，但其二維排序圖與dca排序圖相比，點的分佈更加緊湊、集中，使得群落類型間的界限變得更加模糊，因而如果同分類方法結合使用， dca在樣地和物種排序上的效果好於dcca和cca 。
  4. The changes of the length and the width of streets are reflected by the first axis of the two - dimensional ordination diagram of dca and the changes of the human disturbance and habitat types by the other one. using diversity indices, the analysis shows mat human disturbances and habitat types are influential factors for the street grassland type diversity

    第一軸表示道路寬度和長度變化；第二軸反映綠地類別從路心池綠地類別向便道綠地類別變化以及生境由車輛干擾向行人干擾變化採用豐富度指數、多樣性指數和均勻度指數對城區街道植被的街道綠地類別多樣性的分析結果表明：街道綠地類別多樣性受到行人干擾、城區生境類型等因素不同程度的影響。
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