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potential space niche
相关语句
  相似匹配句对
     T-SPACE
     ■-空间
短句来源
     H. L. potential.
     H. L.
短句来源
     SPACE
     空间
短句来源
     ON THE POTENTIAL MARKOV PROCESSES IN ABSTRACT SPACE
     抽象空间中的有势马尔科夫过程
短句来源
     CHEMICAL POTENTIAL AND CORRELATION OF PARTICLE SPACE
     化学势与粒子空间相关性
短句来源
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Based on the survey sampling far from the parent plants, the quantitative analysis on seed dispersal of Hordeum brevisubulatum (Trin.)Link on alkalized meadow in the Songnen Plain of China on six orientations was conducted.The results showed that due to the effect of wind direction, the greatest number of seeds disposed was in the northeast, which was 4 times more than the smallest number in the South west.The mean radius of the seed dispersal was about 130 cm.All seed disposal patterns per unit area in different...

Based on the survey sampling far from the parent plants, the quantitative analysis on seed dispersal of Hordeum brevisubulatum (Trin.)Link on alkalized meadow in the Songnen Plain of China on six orientations was conducted.The results showed that due to the effect of wind direction, the greatest number of seeds disposed was in the northeast, which was 4 times more than the smallest number in the South west.The mean radius of the seed dispersal was about 130 cm.All seed disposal patterns per unit area in different orientations fit, more or less, well with the weibull distribution.It refected that seed dispersal of the with barley provided the character of extending, far from the parent plants, their potential space niche under the natural conditions at the Songnen Plain.The number of seeds dispersed by sequence centrifugation far from the parent plants increased following a Logistic curve relevant to the expansion of accumulated unit area.The rates of increase were relatively lower in the east and northeast where seed disporsal was greater and the distance was farther from the parent plants.

根据顺序远离母株的取样调查,定量地分析了松嫩平原碱化草甸野大麦(Hordeum bre-visubulatum (Trin.) Link)在6 个方向上的种子散布格局。结果表明,在风的作用下,野大麦向东北方向散布的种子数量最多,比数量最少的西南方向多4 倍。种子散布半径平均约130cm 。不同方向单位面积的种子散布格局均较好地适合于Weibull分布,并反映出在松嫩平原自然条件下,野大麦具有远离母株扩大其潜在生态位空间的种子散布机制。不同方向野大麦顺序远离母株的种子散布数量均随着累积面积的增加呈Logistic曲线形式增长,其增长速率以种子散布数量多、距离远的东和东北方向相对较小

 
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