脱贫期间诏安县土地生态安全时空演化  

Spatiotemporal evolution of land ecological security in Zhao'an County during poverty alleviation

作　　者：柳建玲 李胜鹏 范胜龙 LIU Jianling;LI Shengpeng;FAN Shenglong(College of Public Administration,Fujian Agriculture and Forestry University,Fuzhou 350002,China)

机构地区：[1]福建农林大学公共管理学院,福州350002

出　　处：《生态科学》2021年第4期130-138,共9页Ecological Science

基　　金：国家自然科学基金项目(41671173,41271191)。

摘　　要：区域脱贫攻坚期间土地利用结构、方式等变化对土地生态安全具有重要影响。选取福建省诏安县为研究区域,借助空间主成分分析法对诏安县2014和2017年的土地生态安全状态进行评价,利用空间自相关分析、地理探测器识别诏安县土地生态安全时空演化特征和驱动因素。结果表明:(1)2014—2017年诏安县土地生态安全等级较高(Ⅳ级、Ⅴ级)的土地面积呈减少趋势,减少了约33.41%;(2)2014与2017年诏安县土地生态安全空间均表现为正向相关性、集聚分布状态,并呈现由南向北递增、由中向东西部递减的趋势;(3)人为因素是诏安县脱贫攻坚期间土地生态安全状态变化的主导因素。研究认为,诏安县土地总体为生态安全状态,但仍有部分土地生态安全等级降低,区域不安全土地聚集效应显著。建议加强区域土地生态安全协调治理,坚持扶贫开发与生态保护并重,做好脱贫攻坚与乡村振兴相衔接的生态保护修复。Changes in land use structure and methods during regional poverty alleviation have significant influence on land ecological security.Zhao'an County,Fujian Province was selected as the study area.The land ecological security status of Zhao'an County in 2014 and 2017 was evaluated by means of spatial principal component analysis.The spatial and temporal evolution characteristics and drivers of land ecological security in Zhao'an County were identified through the methods of using spatial autocorrelation analysis and geographic detectors factor.The results showed are as follows.(1)The land area of higher ecological security(IV andⅤ)in Zhao'an County presented a decreasing trend from 2014 to 2017 with a decrease of about 33.41%.(2)The spaces of ecological safety of land demonstrated a positive correlation,agglomeration and distribution,and showed a trend of increasing from south to north and decreasing from middle to east and west in Zhao'an County in 2014 and 2017.(3)Human factors were the main factors that changed the state of land ecological security during the poverty alleviation period in Zhao'an County.According to the research,the land was generally in an ecologically safe state in Zhao'an County,but the ecological safety level of some land was reduced,and the regional unsafe land accumulation effect was significant.It is recommended to strengthen the coordinated governance of regional land ecological security,adhere to the equal emphasis on poverty alleviation and development and ecological protection,and make a great effort to achieve ecological protection and restoration in related to poverty alleviation and rural rejuvenation.

关 键 词：脱贫期间 土地生态安全评价 空间自相关 地理探测器 转移矩阵 

分 类 号：X826[环境科学与工程—环境工程] F301.24[经济管理—产业经济]