北川县地震前后生态用地的空间格局演变  

Spatial Pattern Evolution of Ecological Land UseBefore and After the Earthquake in Beichuan County

作　　者：何燕敏 林孝先 蔡小虎[3] 杜忠 HE Yan-min;LIN Xiao-xian;CAI Xiao-hu;DU Zhong(School of Geographical Sciences,China West Normal University,Nanchong Sichuan 637009,China;College of Resources and Environmental Engineering,Mianyang Teachers'College,Mianyang Sichuan 621016,China;Sichuan Academy of Forestry,Chengdu Sichuan 610081,China)

机构地区：[1]西华师范大学地理科学学院,四川南充637009 [2]绵阳师范学院资源环境工程学院,四川绵阳621016 [3]四川省林业科学研究院,成都610081

出　　处：《西华师范大学学报（自然科学版）》2024年第4期381-387,共7页Journal of China West Normal University(Natural Sciences)

基　　金：四川省自然科学基金面上项目(2023NSFSC0193);西华师范大学科研创新团队项目(CXTD2020-3);若尔盖国家公园综合科学考察项目(510201202077920)。

摘　　要：针对区域规划中生态用地时空格局不能及时更新和获取的问题,通过转移矩阵、土地利用动态度和重心转移模型,从生态用地现状、变化、效应及政策启示等方面对北川县震前、震后生态用地空间格局的演变进行了全面分析。结果表明:2008—2018年北川县生态用地呈减少趋势,共计转出生态用地1215.69 hm^(2),生态用地主要流失方向为建设用地;10年间生态用地呈现“西多东少,中部集中”的空间格局,各类生态用地的重心集中在中部及西部,总体较稳定,但在东西方向有轻微波动。In order to solve the problem that the temporal and spatial pattern of ecological land use cannot be updated and obtained in time in regional planning,the spatial pattern evolution of ecological land use before and after the earthquake in Beichuan county is comprehensively analyzed from the aspects of present situation,changes,effects and policy enlightenment through transfer matrix,land use dynamics and gravity center transfer model.The results show that the ecological land in Beichuan county was on a decreasing trend from2008 to 2018,with a total loss of 1215.69 hm^(2),mainly transferred to construction land;in the past 10 years,the ecological land has presented a spatial pattern of“more in the west but less in the east,and concentrated in the central area”;the gravity centers of all kinds of ecological lands are concentrated in the middle and west parts,which is generally stable,but there are slight fluctuations in the east-west direction.

关 键 词：生态用地 空间格局 转移矩阵 演变分析 地震 

分 类 号：F301.2[经济管理—产业经济]