CAJ | 학술논문

鼠妇是生态系统中林间落叶的重要分解者,对促进生态系统的物质循环和能量流动有重要作用.应用Taylor的幂法则、Iwao m-m回归分析法及6个聚集指标,对黄河三角洲地区杨树林地鼠妇的空间分布型和抽样技术做了研究.结果表明,鼠妇呈聚集分布,分布的基本成分是个体群,其聚集性随密度的增加而增大.聚集的原因与鼠妇自身喜欢阴暗潮湿的习性和林地的环境因素有关.运用Iwao m-m回归中的2个参数α和β值,确定了在不同精度下的理论抽样数及序贯抽样数.
서부시생태계통중림간락협적중요분해자,대촉진생태계통적물질순배화능량류동유중요작용.응용Taylor적멱법칙、Iwao m-m회귀분석법급6개취집지표,대황하삼각주지구양수임지서부적공간분포형화추양기술주료연구.결과표명,서부정취집분포,분포적기본성분시개체군,기취집성수밀도적증가이증대.취집적원인여서부자신희환음암조습적습성화임지적배경인소유관.운용Iwao m-m회귀중적2개삼수α화β치,학정료재불동정도하적이론추양수급서관추양수.
Sowbugs are important decomposer, feeding on dead wood and leaves. This procession can accelerate material cycling and energy flow in forest ecosystem. In the study,the spatial distribution pattern of sowbugs in poplars forests was analyzed using Taylor's power law,Iwao's distribution function,and six aggregation indices. The results showed that the spatial distribution pattern of sowbug was aggregated,and the basic component of the distribution was individual colony whose aggregation intensity increased with density. The aggregation of sowbugs was due to their behavior and some environmental factors. Using the parameters α and β in Iwao's m-m regression equation,the optimal and sequential sampling numbers were determined.