2004•Guizhou kexueRequires access

THE ESTABLISHMENT OF SPATIAL MODELS FOR WEED SEED DISPERSAL

Jihuai Wang, QI Guo-zheng

Abstract

In order to make optimal strategies for weed control by simulation and model analysis, we designed and did an indoor experiment of weed seed dispersal by wind. Based on the experimental data, in this paper, spatial model of weed seed dispersal has been built. The results show: dispersal of weed seed in any direction obeys an approximate Gaussian distribution; under the experimental conditions, spatial distribution type of weed seed dispersal will change with variation of wind speed. Well-known Howard et al.'s model~(〔5〕) of weed dispersal is a special example of the model built in this paper. Accordingly, We infer that the distribution type described by Howard's model is similar to that of dispersal of weed seed in the height under the condition of middle speed.

About this research paper

What this paper is about

Why it matters

A significance statement is not available in the OpenAlex record.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

Key concepts: Biological dispersal, Weed, Seed dispersal, Spatial distribution, Seed dispersal syndrome, Distribution (mathematics), Weed control, Gaussian