期刊论文

Liu, Liming(liulm@cau.edu.cn)

中文

农业工程学报

1002-6819

2016

32

21

252-263

10.11975/j.issn.1002-6819.2016.21.035

国家自然科学基金

本校为其他机构

针对普通线性回归分析以空间平稳数据为假设,而忽视空间数据局部变化特征的缺陷;该文以上海市西郊的青浦区为案例区,通过构建景观生态质量评价指标体系,采用综合指标评价法和等距离空间分类法,对该区184个行政村的景观生态质量进行评价和等级划分;引入局部线性地理加权回归模型用以评估压力类因素对景观生态质量的影响;对比线性回归模型、地理加权回归模型和局部线性地理加权回归3个模型在解释青浦区行政村景观生态质量空间差异的精度。结果表明:2014年青浦区各行政村的景观生态质量指数的变化幅度为0.03~5.49,呈现西部高,东部低的特征;景观生态质量与8种压力类影响因素的关系随着空间位置的改变...

The spatial stationary data are usually used in most ordinary linear regression analysis, which often has limitation of ignoring the local variations of spatial data. In this paper, in order to evaluation and classification of landscape ecological quality of 184 administrative villages in the western suburbs of Qingpu district in Shanghai City, we constructed evaluation index system of landscape ecological quality. The comprehensive index evaluation method and the equal distance space classification method were used. A new technique called local linear geographically weighted regression model ...