中国农学通报2025，Vol.41Issue(28)：56-67,12.
成都平原精华灌区农田生态系统调查评价研究
Investigation and Evaluation of Farmland Ecosystem in Essence Irrigation District of Chengdu Plain
摘要
Abstract
The Chengdu Plain serves as the core area for constructing the'Tianfu Granary',and the protection of cultivated land is of great significance to national food security.This paper took a typical area within the essence irrigation district of Chengdu Plain as an example,employing various investigation and analysis methods to collect baseline data on the farmland ecosystem in the study area.An evaluation system was established focusing on ecological patterns,ecological health,ecological safety and ecological services,and corresponding indicators were defined.Decision weights were calculated using methods such as analytic hierarchy process(AHP),entropy weight method and expert scoring.Comprehensive evaluation and analysis of the farmland ecosystem in the essence irrigation district were then conducted.The results showed that:(1)from 2019 to 2022,the area of cultivated land in the study area showed a trend of decreasing first and then increasing,indicating that the protection of cultivated land had achieved initial success,and the background of farmland ecological environment was in good condition;(2)the fragmentation of farmland landscape in the study area was prominent,mainly due to factors such as property rights and road barriers,which lead to a low degree of cultivated land connectivity.The rural population per capita farmland was only 0.08 hm2,which is not conducive to the development of agricultural scale and mechanization;(3)the overall condition of the farmland ecosystem in the study area was relatively good,with 98.05%of the land in good or moderate condition,78.42%classified as safe or relatively safe,and 95.55%rated as healthy or relatively healthy.The high ecological service value made it suitable for agricultural production.The research methodology and findings could provide reference for the protection of cultivated land,quality improvement and the construction of'Tianfu granary'in Chengdu Plain,and provide reference for the evaluation of farmland ecosystem in other regions.关键词
成都平原/精华灌区/农田生态系统/生态本底/指标体系/调查评价Key words
Chengdu Plain/essence irrigation district/farmland ecosystem/ecological baseline/index system investigation and evaluation分类
资源环境引用本文复制引用
陈祖荧,敬发铭,陈达,徐争强,秦诗律,赵利..成都平原精华灌区农田生态系统调查评价研究[J].中国农学通报,2025,41(28):56-67,12.基金项目
2024年度四川省自然资源厅"揭榜挂帅"遴选课题"四川省国土综合整治监测监管技术体系研究"(ZDKJ-2024-005). （ZDKJ-2024-005）
