摘要
通过模型的建立、抽样技术的研究表明 ,山杨根腐病是一种根病 ,以感病株数为病害的数量指标 .用扩散型指数法和回归模型分析法研究其空间格局 ,山杨根腐病的空间格局是一个相对静态的均匀分布空间格局 ,随着时间的变化空间格局也将发生变化 .
Root rot of moutain poplar was studied with establishing model and sampling technique.The results showed that,root rot is a kind of root disease,the quantitative index is disease plant numbers.The space distribution was studied with the method of diffusion and regression analysis,it's a uniform distribution of relative statics,the space distribution will change with the time changing.
出处
《延边大学农学学报》
2001年第1期1-7,共7页
Agricultural Science Journal of Yanbian University
基金
<九五>国家攻关项目!(96 - 0 11- 0 1- 0 2 )
关键词
山杨根腐病
空间分布格局
抽样技术
root rot of moutain poplar
space distribution setup
sampling technique