抛秧稻无株行距规格 ,因而秧苗在田间水平向上的分布明显有别于手插稻 ,这是两种稻作方式原初的、根本性的分异点之一。研究表明 ,抛秧稻秧苗水平向上的分布总体虽呈均匀随机型 ,但按Dirichlet棋盘形嵌图方法得到的具体各穴所占的凸多边形形状、面积各异 ,整体与局部呈分形特征 ,这种分布格局直接影响植株的空间分布 ,强化了个、群体的不整齐性 ,加上垂直方向上产生的植株生育效应 ,使冠层错落 ,冠层小气候温、光、湿、风等有所改善。在水平分布上的随机性 ,局部产生了大小不等无苗空档 ,空档周围的植株生长有一定的调节补偿作用 ,只要空档见方面积小于 10 0 0 cm2对群体产量不会产生影响。 Throwing rice without row spacing specification, so the seedlings in the horizontal distribution of the field is clearly different from the hand inserted rice, which is two kinds of rice original, fundamental differences. The results showed that although the horizontal distribution of rice seedlings raised by throwing rice was generally uniform, the shapes of convex polygons occupied by the specific points obtained by the Dirichlet embedding method were different in area and the whole was partly fractal. The species distribution pattern directly affected the spatial distribution of plants, enhanced the irregularity of individuals and groups, coupled with the plant growth effect in the vertical direction, which made the canopy scattered, the canopy microclimate was warm, light, wet and wind improved . In the horizontal distribution of randomness, the local size of seedlings generated from different levels of neutral, plant growth around the gap has a certain role in the regulation and compensation, as long as the square area of ​​less than 10 0 0 cm2 does not have an impact on population output.