基于地理探测器的山东省莱阳市耕地类型时空分布及其影响因素

戴玉婷; 齐斐; 董明明; 孙蕾; 孟琳; 刘霞

doi:10.13961/j.cnki.stbctb.2023.04.026

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基于地理探测器的山东省莱阳市耕地类型时空分布及其影响因素

试验研究

- 基于地理探测器的山东省莱阳市耕地类型时空分布及其影响因素
- Spatio-temporal Distribution of Cultivated Land Types and Their Influencing Factors in Laiyang City of Shandong Province Based on Geographical Detectors
- 水土保持通报 2023年43卷第4期页码：211-219
- 作者机构：
  
  1. 南京林业大学南方现代林业协同创新中心江苏省水土保持与生态修复重点实验室,江苏,南京,210037
  2. 江苏省水利科学研究院,江苏,南京,210017
  3. 山东省水文中心,山东,济南,250002
- 作者简介：
- 基金信息：
  
  国家自然科学基金项目“沂蒙山区退耕坡地土壤结构与入渗动态及其分形学机理”(31070627)，“坡式经济林地土壤水分运移动态及内在机理”(32071840)
- DOI：10.13961/j.cnki.stbctb.2023.04.026
  中图分类号： S127
- 纸质出版：2023
- 稿件说明：
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戴玉婷, 齐斐, 董明明, 等. 基于地理探测器的山东省莱阳市耕地类型时空分布及其影响因素[J]. 水土保持通报, 2023,43(4):211-219.

Dai Yuting, Qi Fei, Dong Mingming, et al. Spatio-temporal Distribution of Cultivated Land Types and Their Influencing Factors in Laiyang City of Shandong Province Based on Geographical Detectors[J]. Bulletin of Soiland Water Conservation, 2023, 43(4): 211-219.
戴玉婷, 齐斐, 董明明, 等. 基于地理探测器的山东省莱阳市耕地类型时空分布及其影响因素[J]. 水土保持通报, 2023,43(4):211-219. DOI： 10.13961/j.cnki.stbctb.2023.04.026.

Dai Yuting, Qi Fei, Dong Mingming, et al. Spatio-temporal Distribution of Cultivated Land Types and Their Influencing Factors in Laiyang City of Shandong Province Based on Geographical Detectors[J]. Bulletin of Soiland Water Conservation, 2023, 43(4): 211-219. DOI： 10.13961/j.cnki.stbctb.2023.04.026.

摘要

[目的

]

探索不同耕地类型的空间分布、动态变化及其影响因素，为该区域耕地保护、可持续农业发展和水土保持综合治理提供科学指导。[方法

]

以山东省莱阳市为研究区，基于2019—2021年高分遥感数据，结合野外调查，采用动态变化度、土地利用转移矩阵及地理探测器等方法，对耕地类型进一步细分为水浇地、旱平地、旱坡地、旱梯田、撂荒地等5类，并探讨其空间分布影响因素、年际时空分布格局及其易变化区域识别。[结果

]

①研究区耕地占土地总面积的54.44%，整体呈现南多北少，西多东少的特征；以旱梯田为主，所占比例为61.19%；其次为水浇地、旱平地和旱坡地，撂荒地仅占0.33%。②单因子探测器结果表明，地貌类型、坡度及土壤类型是影响耕地类型分布的主导因素，因子交互作用时，影响因子的解释力q值均达0.3以上。③2019—2021年耕地总体动态度为-0.25%，面积减少4.73 km

，主要由旱梯田、旱坡地、旱平地、水浇地转化为建设用地，多发生在城镇周边，且以低丘陵区坡度小于5°的棕壤土居多。[结论

]

研究区耕地类型以旱梯田为主，分布在低丘陵区且坡度较平缓(耕作质量较好)的耕地类型易发生变化，从而使耕地面积持续减少。因此，应加强对高质量耕地的保护措施。

Abstract

[Objective] The temporal and spatial variation characteristics of cultivated land types and their influencing factors were studied in order to provide a theoretical basis for policy-making regarding cultivated land protection

sustainable agricultural development

and soil and water conservation in this region. [Methods] The study was conducted for Laiyang City in Shandong Province. High-resolution remote sensing data from 2019 to 2021 were combined with field observations in order to divide cultivated land types into five categories: irrigated land

arid flat land

arid sloping land

arid terrace land

and abandoned land. We determined the spatio-temporal distribution and variation of different types of cultivated land and their influencing factors

and identified the variable regions by using dynamic change degree

land use transfer matrix

and geographic detector. [Results] ① Cultivated land of Laiyang City accounted for 54.44% of the total land area

with an overall distribution pattern of more cultivated land in the southern and western areas of the city

and less in the northern and eastern areas of the city. Arid terrace land accounted for 61.19% of the total cultivated land area

which was followed by irrigated land

arid flat land

and arid sloping land. Abandoned land accounted for only 0.33% of the total cultivated land area. ② The analysis of single factor detector showed that landform type

slope

and soil type were the three main factors affecting the distribution of cultivated land type

and the (q values) were all above 0.3 when the factors interacted with each other. ③ From 2019 to 2021

the net rate of cultivated land conversion was -0.25%. The total area decreased 4.73 km2

mainly due to conversion of arid terrace land

arid sloping land

arid flat land

and irrigated land to construction land. This conversion mostly occurred in the urban area located in the low hilly area with a slope of less than 5° and a brown soil type. [Conclusion] The mainly cultivated land type is dry terraced field. Cultivated land distributed in low hilly area with gentle slopes (representing cultivated land with good quality) is easy to change. As the area continues to decrease

the protection measures of high-quality cultivated land should be strengthened.

关键词

Keywords

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