川西北高原家畜数量与生态环境因子的统计关系及其生态意义  

Statistical Relationships between Ecological Factors and Livestock Population of Northwest Sichuan Plateau and Its Ecological Significances

作　　者：赵益新[1] 赵珂[2] 阮晓冬[3] 

机构地区：[1]西南民族大学生命科学与技术学院,四川成都610041 [2]中国科学院地球环境研究所,陕西西安710075 [3]成都信息工程学院,四川成都610225

出　　处：《成都信息工程学院学报》2009年第6期601-604,共4页Journal of Chengdu University of Information Technology

基　　金：国家十一五科技支撑资助项目(2007BAC30B01)

摘　　要：通过收集川西北高原地区近20年来的5个主要生态环境因子与牦牛、绵羊、山羊数量的数据资料,在建立二次多项式模型的基础上,进行了单因子边际分析。分析结论:牦牛和绵羊数量与生态环境因子间的多项式回归方程具有显著性,山羊数量与生态环境因子间的多项式回归方程不具有显著性。从而,提出了家畜生长的最适宜生态环境条件,为当地的畜牧业生产发展规划以及生态环境资源合理开发利用提供了科学的依据。In this paper, by collecting the data of five major ecological factors and the number of yak, sheep, goats in Northwest Plateau of Sichuan in recent 20 years, single factor＇s marginal analysis is conducted based on the establishment of quadratic polynomial model. Conclusions： polynomial regression equation between the number of yaks and sheep and ecological factors is significant; the number of goats and ecological factors do not have a significant polynomial regression equation. Thus, the optimum environmental conditions for the growth of livestock are obtained, which provides important scientific consultancy for the local husbandry production, as well as making the best use of ecological resources.

关 键 词：生态环境因子 最适宜生态环境条件 线性化变换 多项式回归分析 显著性检验 单因子边际分析 

分 类 号：X171.1[环境科学与工程—环境科学]