摘要
利用地理统计学的方法，对二化螟直冬幼虫的田间全查数据进行分析，通过全方位上的半方差图和Ｋｒｉｇｉｎｇ估计后的空间分布。结合二化螟的生物学特性和以往的概率拟合确定，该田块的二化螟越冬幼虫在０．２－０．３ｍ的扩散中心的四周扩散，在形成１．８－２．０ｍ的聚集区，各聚集区间则为均匀２，同时对未取样点的值进行相应的估计。
Geostatistic methods,omnisemivariogram and punctural kriging,were applied to study the spatial pattern of dipausing larva of striped rice borer at a rice field.Combined with the probabilistic fitting and the biology of striped rice borer,the result showed that the pattern was formed by many homogeneous mass patches distributing in the field with the centre of 0.2～0.3m and the range of 1.8～2.0m.The vatues of the unsampled points were estimated by kriging estimation.
出处
《生态学报》
CAS
CSCD
北大核心
1999年第2期250-253,共4页
Acta Ecologica Sinica
关键词
二化螟
地理统计学
空间分布
概率拟合
Chilo supperssalis Walker,spatial pattern,geostatistics,probabilistic fitting.
