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An analysis of spatiotemporal patterns in Chinese agricultural productivity between 2004 and 2014

机译:2004年至2014年中国农业生产率的时空格局分析

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摘要

Understanding spatiotemporal patterns in Chinese agriculture is extremely important for national sustainable development. We apply the Estimation System of Agricultural Productivity (ESAP) model in this study to calculate this variable across China between 2004 and 2014 and further analyze spatiotemporal patterns at the municipal level using Moran's I and Local Indicators of Spatial Association (LISA) indices. The results of this study reveal that input factors have been dynamically embedded within this system and can therefore be utilized to avoid overestimates of agricultural productivity via the ESAP model, while the dependence of productivity on climatic factors also determines inter-annual variability and spatial patterns. The results of this analysis show that average agricultural productivity has tended to decrease spatially from south-to-north and from east-to-west across China, while generally increasing temporally between 2004 and 2014. The data presented in this study reveal a strong positive spatial correlation between values for agricultural productivity in municipal administrative areas, to the extent that identified LISA agglomeration types can mostly be categorized as either "high-high" (HH) or "low-low" (LL).
机译:了解中国农业的时空格局对于国家可持续发展极为重要。我们使用本研究中的农业生产力估算系统(ESAP)模型来计算2004年至2014年间中国的这一变量,并使用Moran的I和地方空间协会指标(LISA)进一步分析市级时空格局。这项研究的结果表明,输入因子已经动态地嵌入到该系统中,因此可以通过ESAP模型用于避免高估农业生产率,而生产率对气候因子的依赖性也决定了年际变化和空间格局。分析结果表明,中国的平均农业生产率从南到北和从东到西在空间上呈下降趋势,而在2004年至2014年之间总体上呈暂时性增长。在确定的LISA集聚类型可以大致分为“高-高”(HH)或“低-低”(LL)的范围内,市政行政区农业生产率的值之间的空间相关性。

著录项

  • 来源
    《Ecological indicators》 |2019年第10期|591-600|共10页
  • 作者单位

    Hubei Univ Fac Resources & Environm Sci Wuhan 430062 Hubei Peoples R China|Chinese Acad Sci Inst Geog Sci & Nat Resources Res Beijing 100101 Peoples R China|Hubei Prov Key Lab Reg Dev & Environm Response Wuhan 430062 Hubei Peoples R China;

    Hubei Univ Fac Resources & Environm Sci Wuhan 430062 Hubei Peoples R China|Hubei Prov Key Lab Reg Dev & Environm Response Wuhan 430062 Hubei Peoples R China;

    Chinese Acad Sci Inst Geog Sci & Nat Resources Res Beijing 100101 Peoples R China;

    Nanjing Univ Sch Geog & Oceanog Sci Nanjing 210023 Jiangsu Peoples R China;

    Hubei Univ Fac Resources & Environm Sci Wuhan 430062 Hubei Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Agricultural productivity; ESAP; Spatiotemporal patterns; China;

    机译:农业生产力;ESAP;时空模式;中国;

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