农业景观破碎化时空演变特征及其驱动力研究——以株洲市为例
Study on the Spatial and Temporal Evolution Characteristics and Driving Force of Agricultural Landscape Fragmentation-Taking Zhuzhou City as an Example
史新泽 1黄丽媛 1刘珍1
作者信息
- 1. 湖南工业大学城市与环境学院 湖南,株洲 412007
- 折叠
摘要
科学评估农业景观破碎化程度是实现农业生态安全的基础,也是制定有效生态保护与恢复策略、优化农业生产布局的前提条件.本研究以湖南省株洲市为研究对象,探讨了2000-2020年间农业景观演变及其破碎化的时空特征,并运用地理探测器揭示了其驱动机制.研究发现:株洲市农业景观经历了明显的时空演变,耕地面积减少、林地增加,主要受退耕还林政策等影响;农业景观破碎化程度先升高后降低,总体呈现先提高后减小的趋势;人口密度、GDP密度和路网密度对破碎化程度具有较高的解释力,其中人口密度与GDP密度的交互作用影响最显著.本研究为农业景观保护和规划提供了科学依据.本研究为农业景观保护和规划提供了科学依据,有助于实现景观的可持续发展和空间连续性.
Abstract
Scientific evaluation of agricultural landscape fragmentation is fundamental to achieving agricultural ecological security and is also a prerequisite for formulating effective ecological protection and restoration strategies and optimizing agricultural production layout.In this study,we investigated the spatiotemporal characteristics of agricultural landscape evolution and fragmentation in Zhuzhou City,Hunan Province,from 2000 to 2020,and used geographic detectors to reveal its driving mechanism.The results showed that the agricultural landscape of Zhuzhou City has undergone obvious spatiotemporal evolution,with a decrease in cultivated land area and an increase in forestland,mainly influenced by policies such as returning farmland to forestland.The degree of agricultural landscape fragmentation first increased and then decreased,showing a general trend of increasing first and then decreasing.Density of population,GDP density,and road network density have a high explanatory power for fragmentation,with the interactive effect of population density and GDP density being the most significant.This study provides scientific basis for agricultural landscape protection and planning,and is helpful for achieving landscape sustainability and spatial continuity.
关键词
农业景观格局/景观破碎化/时空演变/驱动力研究Key words
agricultural landscape pattern/landscape fragmentation/space-time evolution/driving force research引用本文复制引用
基金项目
湖南省教育厅科研项目(2023)(23B0535)
出版年
2024
国家科技期刊平台
NSTL
万方数据