sampling pattern

The first concern in this chapter is to compute aggregation parameter which reflects the aggregation level of the spatial point pattern. Two new methods, K-function and distance sampling, are proposed.

本章首先给出了两种计算点格局聚集指数的方法，K-function以及邻体距离抽样方法。

Spatial Pattern of Ladybird Beetle on Chinese Cabbage and Its Sampling Techniques. The wind changed round suddenly last night and brought with it a heavy downpour.

大白菜上七星瓢虫空间格局及抽样技术研究昨晚风向突然变了，随之而来的是一场瓢泼大雨。

The spatial distribution pattern and sampling methods for the adult of litchi stink bug ( Tessaratoma papillosa Drury) are analysed with six species aggregation indices.

本文用6种聚集度指标研究了荔枝蝽成虫空间分布型和抽样技术。

Spatial distribution pattern and sampling method on eggs of Agrotis ipsilon

对小地老虎卵空间分布型及抽样技术的调查分析

Field distribution pattern of beet weevil larva and its sampling technique

甜菜象虫幼虫田间分布型及抽样研究

Spatial distribution pattern and sampling technique for fungal Sclerotinia disease in broccoli fields

西兰花菌核病空间分布格局及抽样技术研究

Field Pattern of Rice Grain Smut and Its Sampling Methods

稻粒黑粉病病株田间格局及抽样技术研究

Based on fixed and consecutive sampling of soil moisture in hilly area of Loess Plateau, the influence of topography and land use on the spatial-temporal pattern of soil moisture were analyzed.

采用1982～1985年和2002年两个时段的定点观测数据，系统分析了小流域尺度地形和土地利用类型对土壤水分时空格局的影响。

Study on Distribution Pattern and Sampling Technique of Eggs of Janus Piri

梨茎蜂卵空间分布型及抽样技术研究

A discussion is made on the function of the cornea lens in the compound eye the horsefly and the relation between sampling pattern of the visual information of the compound eye and adaptation state.

本文还讨论了憎黄虻复眼角膜透镜的作用以及该复眼对视觉信憎黄息抽样方式与适应状态的关系。

Weed survey was conducted by sampling methods of inverted W-pattern to the leafy vegetable fields with different planting histories and management systems in Guangzhou region in spring.

于春季利用倒置“W”取样法对广州地区不同种植年限及管理措施的叶菜田进行杂草群落调查。