农业资源与环境学报2025，Vol.42Issue(4)：866-876,11.DOI:10.13254/j.jare.2024.0293
东北黑土区耕地系统健康评价及障碍因子分析
Evaluation of cultivated land system health and diagnosis of its obstacle factors in the black soil region of northeast China:a case study of Zhaoyuan County,China
摘要
Abstract
To scientifically evaluate the cultivated land system health in Zhaoyuan County,Heilongjiang Province based on analyzing the spatial and temporal changes of arable land,the pressure-state-response(PSR)model was used to select 19 representative indexes to construct an evaluation index system for the cultivated land system health,assess the cultivated land system health from 2010 to 2020,and further diagnose the main obstacle factors affecting the cultivated system health with the obstacle degree model.The results were as follows:compared with 2010,the spatial distribution pattern of arable land in Zhaoyuan County in 2020 expanded to the south and the area of cultivated land increased.From 2010 to 2020,the overall of the cultivated land system health in Zhaoyuan County showed a downward trend,with the health index of the cultivated land system declining from 0.555 0 to 0.548 5.Moreover,the cultivated land system health was characterized by obvious spatial differentiation,the spatial distribution pattern had gradually evolved from high in the south and low in the north to high in the east and low in the west.From 2010 to 2020,the pressure on the cultivated land system in Zhaoyuan County decreased as a whole,and the cultivated land system had become less functionally stable and less able to cope.From 2010 to 2020,the use of diesel fuel,heavy metal contamination of soil,agricultural electricity supply,the proportion of employees in the primary sector,soil organic matter,and soil pH were identified as the primary obstacles to maintaining cultivated land system health.The study concluded that the overall cultivated land systems health in Zhaoyuan County was low and showed a decreasing trend over the study period.Several obstacles hindered the improvement of the cultivated land systems health.Therefore,in the future utilization and management of the cultivated land systems,we should continue to popularize conservation tillage technology,improve farmland infrastructure,and increase financial and technological inputs in order to improve the health level of cultivated land systems and ensure national food security.关键词
耕地系统/健康评价/压力-状态-响应/障碍因子/东北黑土区Key words
cultivated land system/health assessment/pressure-state-response/obstacle factor/northeast black soil area分类
资源环境引用本文复制引用
张慧,刘倩倩,李咏雪..东北黑土区耕地系统健康评价及障碍因子分析[J].农业资源与环境学报,2025,42(4):866-876,11.基金项目
国家自然科学基金项目(41402297) （41402297）
黑龙江省博士后资助项目(LBH-Z12032)National Natural Science Foundation of China(41402297) （LBH-Z12032）
Heilongjiang Postdoctoral Sustentation Fund,China(LBH-Z12032) （LBH-Z12032）
