摘要
本文以宝鸡市耕地面积为研究对象,以宝鸡市2000~2012年耕地面积相关数据为基础,研究宝鸡市耕地面积变化,运用主成分分析法分析影响宝鸡市耕地面积变化的因素。研究结果表明:宝鸡市耕地面积从2000年的333 840公顷,缩减到2012年的299 600公顷,减少了34 240公顷,减少幅度为10.26%,呈减少趋势,主要是受到该市人口、经济和农业发展水平的影响,应该认清耕地的现状,提高保护耕地资源的意识。
The paper regards the cultivated land area in Baoji city as the research object and it is based on the data of cultivated land area in Baoji city from 2000 to 2012,and studies the characters of cultivated land dynamic change in Baoji city,then uses principal component analysis to analyze the factors that influence farmland change of Baoji city. The results show that in 2000 the cultivated land of Baoji city is 333 840 hectares,in 2012 it is just 299 600 hectares,decreased 34 240 hectares and the amplitude of reduce is 10. 26%,presents a decrease trend. The reasons are the population of Baoji,influence of the economic and agricultural development level. We should understand the current situation of the cultivated land and improve the consciousness of protecting cultivated land resources.
出处
《安庆师范学院学报(自然科学版)》
2015年第4期91-95,共5页
Journal of Anqing Teachers College(Natural Science Edition)
关键词
耕地面积
主成分分析法
驱动力分析
宝鸡市
change of the cultivated land
principal component analysis
driving force analysis
Baoji city