钱凤魁, 逄然然, 于洋, 徐欢, 韩春兰. 辽宁省不同地貌区耕地景观格局与耕地质量空间关联特征及作用机制[J]. 中国生态农业学报 (中英文), 2023, 31(1): 113−124. DOI: 10.12357/cjea.20220392
引用本文: 钱凤魁, 逄然然, 于洋, 徐欢, 韩春兰. 辽宁省不同地貌区耕地景观格局与耕地质量空间关联特征及作用机制[J]. 中国生态农业学报 (中英文), 2023, 31(1): 113−124. DOI: 10.12357/cjea.20220392
QIAN F K, PANG R R, YU Y, XU H, HAN C L. Spatial correlation characteristics and mechanism of cultivated land landscape pattern and cultivated land quality in different geomorphic areas of Liaoning Province[J]. Chinese Journal of Eco-Agriculture, 2023, 31(1): 113−124. DOI: 10.12357/cjea.20220392
Citation: QIAN F K, PANG R R, YU Y, XU H, HAN C L. Spatial correlation characteristics and mechanism of cultivated land landscape pattern and cultivated land quality in different geomorphic areas of Liaoning Province[J]. Chinese Journal of Eco-Agriculture, 2023, 31(1): 113−124. DOI: 10.12357/cjea.20220392

辽宁省不同地貌区耕地景观格局与耕地质量空间关联特征及作用机制

Spatial correlation characteristics and mechanism of cultivated land landscape pattern and cultivated land quality in different geomorphic areas of Liaoning Province

  • 摘要: 探讨耕地景观格局与耕地质量的关联特征对实施耕地三位一体保护具有重要支撑作用。现有研究缺乏耕地景观格局指数对耕地质量的作用机制分析, 制约了从耕地景观格局角度提升耕地质量工作的发展。为此, 本文以辽宁省中部平原区、东部山地区和西部丘陵区为研究对象, 运用空间自相关分析法探讨不同地貌区耕地景观格局指数与耕地质量之间的关联特征, 应用空间误差模型分析各个耕地景观格局指数对不同地貌区耕地质量的具体作用影响。研究表明: 1)不同地貌区耕地景观格局综合指数和耕地质量整体呈现中部平原区较优, 西部丘陵区和东部山地区较差的综合特征。2)不同地貌区耕地景观格局综合指数与耕地质量之间存在正向关联性, 其中东部山地区最为显著, 相关系数为0.45; 中部平原区居中, 相关系数为0.24; 西部丘陵区较低, 相关系数仅为0.17。3)不同地貌区耕地景观格局指数对耕地质量作用影响机制不同。其中最大斑块指数对不同地貌区耕地质量提升均具有显著影响; 而景观形状指数、平均斑块大小、聚合度指数分别对中部平原区、东部山地区、西部丘陵区耕地质量提升影响较大。研究成果揭示了不同地貌区的耕地景观格局指数与耕地质量之间具有不同程度的正向关联性, 同时各个耕地景观格局指数对不同地貌区耕地质量作用影响不同, 为实现耕地景观格局与耕地质量高效协同作用提供借鉴。

     

    Abstract: Exploring the relationship between the landscape pattern and quality of cultivated land plays an important supporting role in the protection of cultivated land by trinity. Existing research lacks an analysis of the mechanism of cultivated land landscape pattern indexes on cultivated land quality, which restricts the development of cultivated land quality improvement from the perspective of cultivated land landscape patterns. Therefore, this study used the central plain, eastern mountainous area, and western hilly area of Liaoning Province as the research objects, and used the spatial autocorrelation analysis method to explore the correlation characteristics between the landscape pattern indexes of cultivated land and the quality of cultivated land in different geomorphic areas. The spatial error model was used to analyze the specific effects of each cultivated land landscape pattern index on the quality of cultivated land in different geomorphic areas. Research results showed that 1) the comprehensive index of cultivated land landscape pattern and the quality of cultivated land in different geomorphic areas generally showed comprehensive characteristics of ‘better’ in the central plain area and ‘worse’ in the western hilly and eastern mountain areas. 2) There was a positive correlation between the comprehensive index of cultivated land landscape pattern and the quality of cultivated land in different geomorphic areas, with the correlation coefficients of 0.45 in the eastern mountain area, 0.24 in the central plain area, and 0.17 in the western hilly area. 3) The influence mechanism of the cultivated land landscape pattern indexes on cultivated land quality differed in different geomorphic areas. Among them, the maximum patch index had a significant impact on the improvement of cultivated land quality in different geomorphic areas. The landscape shape index, the average patch size, and the aggregation index had a relatively large impact on the improvement of cultivated land quality in the central plain, eastern mountain, and western hilly areas, respectively. The research results revealed that there were different degrees of positive correlations between the cultivated land landscape pattern indexes and the quality of cultivated land in different geomorphic areas, and each cultivated land landscape pattern index had different effects on the quality of cultivated land in different geomorphic areas.

     

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