云南省昭通市土地利用时空变化特征及其驱动力
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云南财经大学研究生创新项目“土地利用结构与效益变化的耦合效应分析”(2017YUFEYC038)


Temporal and Spatial Variation Characteristics and Driving Forces of Land Use in Zhaotong City of Yunnan Province
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    摘要:

    [目的]对云南省昭通市土地利用时空变化特征及其驱动力进行分析,为揭示不同尺度区域土地利用变化规律提供科学依据。[方法]基于昭通市2009-2015年土地利用变更及调查数据,结合人口和社会经济数据,采用信息熵公式计算了昭通市各类用地结构信息熵及其均衡度,采用灰色关联分析方法计算了昭通市各类用地总面积与人口数量和经济社会发展要素之间的关联度。[结果]①2009-2015年,昭通市农用地总面积呈减少趋势变化,建设用地总面积和其他用地总面积呈上升趋势变化; ②昭通市耕地面积减少速率最快,土地综合变化度相较其他地区变化较小; ③昭通市及各县/区各类用地结构也逐步向均衡和稳定方向发展,鲁甸县和巧家县的各类用地结构均衡度最高; ④第一产业值、第三产业值、人口和城镇化率为建设用地变化主要驱动力,第二产业值为各区县农用地变化驱动力,国内生产总值均影响昭通市各个区县的农用地、建设用地和其他用地变化。[结论]云南省昭通市土地利用变化受人口、社会和经济等不同因素影响,各类土地逐步向均衡和稳定方向发展。

    Abstract:

    [Objective] This study analyzed the characteristics and driving forces of land use in Zhaotong City of Yunnan Province in order to provide scientific basis for revealing the law of land use change in different scales.[Methods] This study calculated land resource information entropy and equilibrium degree, and analyzed the relevancy degrees among the total area of various types of land and factors of population, society, economy based on data of land use change, population and economics from 2009 to 2015 in Zhaotong City of Yunnan Province.[Results] ① The total area of agricultural land showed a decreasing trend, and the construction land area and other land use area showed an upward trend from 2009 to 2015 in Zhaotong City; ② The cultivated land area had the fastest decrease rate in Zhaotong City, and the comprehensive change degree of land was smaller than those of other regions. ③ The land use structure in Zhaotong City, and other counties gradually equilibrated and got stable, and the land use structures in Ludian and Qiaojia County were mostly obvious. ④ The first industry value, the tertiary industry value, population and urbanization rate were the main driving forces for the change of construction land; the second industry value was the primary driving force of agricultural land change in counties and districts; the gross domestic product(GDP) affected the changes of agricultural land, construction land and other land uses in different districts and counties in Zhaotong City.[Conclusion] The land use structure was affected by different factors such as population, society and economy. All kinds of land gradually developed towards equilibrium and stability in Zhaotong City of Yunnan Province.

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程宪波,杨子生.云南省昭通市土地利用时空变化特征及其驱动力[J].水土保持通报,2018,38(2):166-170,177

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  • 收稿日期:2017-09-19
  • 最后修改日期:2017-10-23
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  • 在线发布日期: 2018-05-17
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