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作 者:邓南荣[1] 张金前[1] 冯秋扬[1] 程炯[1] 韦素琼[2]
机构地区:[1]广东省生态环境与土壤研究所,广东广州510650 [2]福建师范大学自然资源研究中心,福建福州350007
出 处:《生态环境学报》2009年第3期984-989,共6页Ecology and Environmental Sciences
基 金:广东省科技攻关基金项目(2008A060206049;2008A020100010);广东省基金项目(8151065003000009)
摘 要:以我国东南沿海地区农村工业化典型地区晋江市为研究区,利用1985年、1995年、2000年、2005年4期的Landsat TM影像及1997年、2001年的1∶5万土地利用现状图作为数据源,通过影像目视解译提取晋江市农村居民点用地空间信息,然后运用景观生态学原理和定量分析方法,对晋江市20a来农村居民点景观格局动态变化及其驱动因子进行分析。结果表明:(1)从1985到2005年间,晋江市农村居民点用地增加了5325.93hm2,年均扩展率为266.30hm2·a-1;(2)20a来农村居民点规模不断扩大,平均规模增长了77.74%;在空间形态上,农村居民点边界越来越破碎;在空间分布上,斑块间邻近距离不断缩短,平均最邻近距离缩短了37.44%,呈现出集中连片、密集分布的特点;(3)驱动力分析结果表明,20a来晋江市农村居民点景观格局动态变化主要受到区域经济发展、农村工业化、农村居住环境、国家政策制度等因素共同影响。Jinjiang city is a typical cases of rural industrialization in the south-eastern coastal of China. Based on four periods Land- sat TM images of 1985, 1995, 2000 and 2005, and 1 : 50 000 ratio land-use map of 1997 and 2001, through images eye-viewing to translate the land space information of Jinjiang rural residential area, and applying the theory of landscape ecology and the method of quantitative analysis, the landscape pattern changes of rural residential area and their driving forces in Jinjiang city in the recent 20 years were analyzed. The results showed that: (1) From 1985 to 2005, the area of rural residential area of Jinjiang city increased by 5 325.93 hm2, the annual mean expanding rate was 266.30 hm2.a-1; (2) The residential area in Jinjiang city increase continuously within these 20 years, The mean patch size (MPS) increased by 77.74%; For spacial formation, The boundaries of rural residential area were becoming more and more broken; For special distribution, the blocks neighbor distances are continuously shorten, The mean nearest neighbor distance (MNND) decreased by 37.44%, showing the characters of agglomerate distribution; (3) The driving force analysis indicated that the main correlated driving forces of rural residential area landscape pattern changes of these 20 years in Jinjiang city were regional economic development, rural industrialization, rural residential environment and national policy.
分 类 号:X21[环境科学与工程—环境科学]
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