耕地利用可持续集约化时空差异分析 ——以江西省为例
CSTR:
作者:
作者单位:

1.江西农业大学经济管理学院;2.江西省乡村振兴战略研究院

作者简介:

通讯作者:

中图分类号:

基金项目:

国家自然科学基金项目(71864017,42467067,72164014);湖南省教育厅优秀青年科学研究项目(20B303)


Analysis of spatial and temporal differences in sustainable intensification of cultivated land use: a case study of Jiangxi Province
Author:
Affiliation:

1.School of Economics and Management, Jiangxi Agricultural University;2.Jiangxi Provincial Rural Revitalization Strategy Research Institute

Fund Project:

National Natural Science Foundation Project (71864017, 42467067, 72164014); Excellent Youth Scientific Research Project of Hunan Provincial Education Department (20B303)

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    耕地利用可持续集约化为破解粮食安全与资源环境约束之间的矛盾提供了一种新的研究范式。本文运用能值核算法测度了江西省2001至2021年耕地利用过程中的投入产出流,以评估其耕地利用可持续集约化(SICLU)水平,并利用主成分分析法探究了SICLU水平与社会经济发展水平的协调程度。结果表明:1)在耕地利用过程中,表土净损失是耕地系统恢复力的1.75倍,给耕地保护带来巨大压力;农产品产出上升38.59%,废弃物排放上升21.75%。2)耕地生态系统能值生产率(EPR)和能值产出率(EYR)分别上升32.86%和35.52%;环境负载率(ELR)下降13.19%,环境经济效率(EE)上升9.07%。各地级市的能值生产率在整个研究期间未低于5.45,除南昌市外,其他地级市的能值产出率呈波动上升(范围为5.51~18.74),环境负载率为1.64~5.78,环境经济效率为0.30~1.09。3)江西省SICLU指数呈波动上升趋势,2020年达到峰值33.70,总体上升24.26%,且各地级市均有所上升,其自西南向东北的空间格局未发生明显变化。4)虽然各地级市的SICLU水平与社会经济发展水平不协调,但社会经济发展对SICLU水平的影响日益显著。相关部门应优化耕地系统投入结构,降低表土净损失;改善农作物种植结构和空间布局,完善生态补偿制度;因地制宜,促进SICLU与社会经济的协调发展。

    Abstract:

    Sustainable intensification of cultivated land use provides a new research paradigm for addressing the contradiction between food security and resource and environmental constraints. This study employs the energy accounting method to measure the input-output flow in cultivated land use in Jiangxi Province from 2001 to 2021, assessing the level of sustainable intensification of cultivated land use (SICLU). Additionally, principal component analysis is used to explore the degree of coordination between SICLU and the level of socio-economic development. The results indicate that: 1) From the input-output perspective, the net loss of topsoil during cultivated land use is 1.75 times greater than the resilience of the cultivated land system, placing significant pressure on land protection. Agricultural output and waste discharge increased by 38.59% and 21.75%, respectively. 2) The energy productivity (EPR) and energy output rate (EYR) of the cultivated land ecosystem in Jiangxi Province increased by 32.86% and 35.52%, respectively. The environmental load ratio (ELR) decreased by 13.19%, while environmental economic efficiency (EE) rose by 9.07%. Throughout the study period, emergy productivity in each prefecture-level city remained above 5.45. The emergy output rate fluctuated between 5.51 and 18.74 (excluding Nanchang City), with ELR fluctuating between 1.64 and 5.78, and EE ranging from 0.30 to 1.09. 3) The SICLU index in Jiangxi Province displayed a fluctuating upward trend, peaking at 33.70 in 2020, reflecting an overall increase of 24.26%. All prefecture-level cities showed an increase, with the spatial pattern remaining unchanged, progressing from southwest to northeast. 4) Although SICLU levels are not aligned with socio-economic development levels, the influence of socio-economic development on SICLU is becoming increasingly evident. It is recommended that relevant departments optimize the input structure of the cultivated land system to reduce topsoil loss, improve crop planting structures and spatial layouts, and enhance the ecological compensation system. Localized strategies should be implemented to promote the coordinated development of SICLU and socio-economic progress.

    参考文献
    相似文献
    引证文献
引用本文

刘桂英,赵妞,杨梦琦,黄净远. 耕地利用可持续集约化时空差异分析 ——以江西省为例[J]. 农业现代化研究, 2024, 45(6): 1001-1012
LIU Guiying, ZHAO Niu, YANG Mengqi, HUANG Jingyuan. Analysis of spatial and temporal differences in sustainable intensification of cultivated land use: a case study of Jiangxi Province[J]. Research of Agricultural Modernization, 2024, 45(6): 1001-1012

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2024-06-27
  • 最后修改日期:2024-11-04
  • 录用日期:2024-11-07
  • 在线发布日期: 2025-01-24
  • 出版日期:
文章二维码
您是第位访问者
版权所有:《农业现代化研究》编辑部
地址:湖南省长沙市芙蓉区远大二路644号
电话:0731-84615231    E-mail:nyxdhyj@isa.ac.cn
技术支持:北京勤云科技发展有限公司