1. 西安建筑科技大学 建筑学院,陕西,西安,710055
2. 长安大学 建筑学院,陕西,西安,710061
纸质出版:2022
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李宏鹏, 田达睿, 谭静斌. 延安市2000—2020年耕地非农化时空格局演变及其影响因素[J]. 水土保持通报, 2022,42(4):330-337.
Li Hongpeng, Tian Darui, Tan Jingbin. Spatio-temporal Pattern Evolution and Influencing Factors of Cultivated Land Non-agriculturalization in Yan'an City[J]. Bulletin of Soiland Water Conservation, 2022, 42(4): 330-337.
李宏鹏, 田达睿, 谭静斌. 延安市2000—2020年耕地非农化时空格局演变及其影响因素[J]. 水土保持通报, 2022,42(4):330-337. DOI: 10.13961/j.cnki.stbctb.2022.04.041.
Li Hongpeng, Tian Darui, Tan Jingbin. Spatio-temporal Pattern Evolution and Influencing Factors of Cultivated Land Non-agriculturalization in Yan'an City[J]. Bulletin of Soiland Water Conservation, 2022, 42(4): 330-337. DOI: 10.13961/j.cnki.stbctb.2022.04.041.
[目的
]
分析陕西省延安市2000—2020年耕地非农化的时空变化特征与影响因素,为该市耕地保护的政策制定与防止耕地非农化提供理论依据。[方法
]
以延安市为研究对象,基于2000,2005,2010,2020年4期LUCC数据,运用核密度估计、地理探测器等方法开展研究,揭示黄土高原地区耕地非农化程度及其动因。[结果
]
①2000—2020年,延安市耕地非农化面积呈现出“增—减—增”的变化,累计耕地非农化总面积为7 865.28 hm
2
,耕地非农化率为8.45‰。②2000—2020年,延安市耕地非农化主要沿洛河、延河的河谷川道分布,集中发生于中部和南部,核密度最大值为155.03,位于宝塔区延安新城附近;耕地非农化的次集中区是黄陵县和洛川县,核密度最大值分别是75.95,51.77。③延安市耕地非农化现象主要发生在坡度较低,海拔中等,地形位指数较低的地区。④延安市耕地非农化最主要的影响因素是城镇人口、户籍人口、地区生产总值,其解释率分别为68.65%,68.45%,66.54%。[结论
]
延安市2000—2020年耕地非农化现象显著,时间变化呈现波动性,空间异质性较强,是自然、人口、社会经济综合作用的结果。
[Objective] The temporal and spatial variation characteristics and their the influencing factors of cultivated land conversion in Yan'an City from 2000 to 2020 were analyzed in order to provide a theoretical basis for policy-making regarding cultivated land protection and prevention of farmland conversion.[Methods] Land-use and land-cover change data for 2000
2005
2010
and 2020 were analyzed to reveal the degree and causes of non-agriculturalization in the Loess Plateau. The research was carried out by using the methods of kernel density estimation and geodetector.[Results] ① From 2000 to 2020
the non-agricultural area of cultivated land in Yan'an City changed following a pattern of increase-decrease-increase. The total non-agricultural area was 7 865.28 hectares
and the non-agricultural conversion rate of cultivated land was 8.45%. ② From 2000 to 2020
cultivated land conversion in Yan'an City was mainly located along the river valleys of the Luohe River and the Yanhe River. The non-agricultural conversion of cultivated land was concentrated in the central and southern regions
with a maximum kernel density of 155.03 located near Yan'an New City
Baota District. The sub-concentration areas of non-agricultural cultivated land were Huangling County and Luochuan County
with maximum kernel densities of 75.95 and 51.77
respectively. ③ The phenomenon of non-agriculturalization of cultivated land in Yan'an City mainly occurred in areas with low slope
medium altitude
and low topographic index. ④ The most important factors affecting the conversion of cultivated land in Yan'an City were urban population
registered population
and gross domestic product
with explanation rates of 68.65%
68.45%
and 66.54%
respectively.[Conclusion] The phenomenon of cultivated land conversion in Yan'an City from 2000 to 2020 was significant. The temporal changes were volatile
and the spatial heterogeneity was strong due to the comprehensive effects of nature
population
and social economy.
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