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油料作物害虫优势种暗黑、大黑等蠐螬种群在花生和大豆田内的数量空间结构多数属于嵌纹分布,其次为核心分布和P-E核心分布,个别属于随机分布。6种聚集指标测定背屬于聚集分布?荽?提出了“Z”字形9点、每点1平方尺的取样调查方法。经过试验对比、示范和较大面积推广,比现行的双对角綫5点、每点1平方米的取样调查方法工效提高2.8倍,(?)上量仅为原来的1/5,省工省时,准确性较高,深受群众欢迎,前者完全可以取代后者。
The majority of the population structure of the dominant species such as dark black and big black in peanut and soybean fields were found to be embedded in the mosaic pattern, followed by the core distribution and P-E core distribution, which were randomly distributed. The six kinds of aggregation index measurement dorsal belong to the aggregation distribution ?, ?, “Z” shape 9 points, each 1 square feet sampling survey method. After experimental comparison, demonstration and promotion of larger area, the sampling efficiency of 2.8 times higher than that of the current double diagonal 5 points sampling survey method of 1 square meter per point (?) Is only 1/5 of the original, Time-saving, high accuracy, well received by the masses, the former can completely replace the latter.