论文部分内容阅读
以单株核桃为研究对象,通过花粉收集的方法分析了核桃雄花散粉期,花粉通量与散粉时间、传播距离、飘浮高度和气象因子的关系,以了解新疆南疆盆地核桃雄花散粉期花粉飞散时空格局及其影响因素。结果表明:新疆南疆盆地核桃雄花散粉持续时间约为1周,一日内12:00—14:00花粉通量最大;水平方向上花粉通量受风向影响,且随传播距离的增大逐渐减小;垂直方向上随高度的增加花粉通量逐渐减小;花粉通量与气温呈极显著正相关(P<0.01),与风速呈显著正相关(P<0.05)。花粉通量大小主要受气温和风向、风速的影响。
Based on the method of pollen collection, the relationship between the flowering stage, the pollen flux, the dispersal time, the propagation distance, the floating height and the meteorological factors of walnut were analyzed by means of pollen collection to understand the pollen scattering Space - time pattern and its influential factors. The results showed that the duration of pollination of male walnut was about 1 week in southern Xinjiang Basin, and the pollen flux was the highest from 12: 00-14: 00 in the first day. The pollen flux in the horizontal direction was affected by the wind direction and gradually decreased with the increase of propagation distance The pollen flux gradually decreased with increasing height in the vertical direction. Pollen flux and temperature had a significant positive correlation (P <0.01), and had a significant positive correlation with wind speed (P <0.05). Pollen flux size is mainly affected by temperature and wind direction, wind speed.