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农学学报 ›› 2024, Vol. 14 ›› Issue (1): 44-52.doi: 10.11923/j.issn.2095-4050.cjas2023-0168

• 土壤肥料 资源环境 生态 • 上一篇    下一篇

耕地质量与景观格局指数的关系研究——以江西省鹰潭市为例

邹恒宇1,2(), 叶英聪1,2(), 匡丽花1,2   

  1. 1 江西农业大学国土资源与环境学院,南昌330045
    2 江西农业大学农业农村部鄱阳湖流域农业资源与生态重点实验室,南昌330045
  • 收稿日期:2023-07-25 修回日期:2023-09-15 出版日期:2024-01-16 发布日期:2024-01-16
  • 通讯作者:
    叶英聪,男,1989年出生,江西赣州人,讲师,主要从事3S技术与土地资源利用方面的研究。通信地址:330045 江西省南昌市经济技术开发区志敏大道1101号,E-mail:
  • 作者简介:

    邹恒宇,男,2001年出生,江西抚州人,硕士研究生,研究方向:土地资源管理。通信地址:330045 江西省南昌市经济技术开发区志敏大道1101号,E-mail:

  • 基金资助:
    江西省教育厅科学技术研究项目“耕地质量多样性与景观格局的空间关联规则分析”(GJJ210451)

Study on the Relationship Between Cultivated Land Quality and Landscape Pattern Index--Taking Yingtan City of Jiangxi Province as An Example

ZOU Hengyu1,2(), YE Yingcong1,2(), KUANG Lihua1,2   

  1. 1 College of Land Resources and Environment, Jiangxi Agricultural University, Nanchang 330045, Jiangxi, China
    2 Key Laboratory of Agricultural Resources and Ecology in Poyang Lake Watershed of Ministry of Agriculture and Rural Affairs, Jiangxi Agricultural University, Nanchang 330045, Jiangxi, China
  • Received:2023-07-25 Revised:2023-09-15 Online:2024-01-16 Published:2024-01-16

摘要:

研究耕地质量与景观格局间的关系,可以为加强国家耕地质量保护和提升提供科学依据。利用江西省鹰潭市2022年耕地质量数据,在耕地质量评价的基础上综合分析鹰潭市的总体耕地质量状况。选取斑块面积、斑块占景观比例、边界密度、斑块密度、景观形状指数、平均斑块大小、景观分离度、蔓延度指数和香农多样性指数等景观格局指数在Fragstats 4.2软件中进行计算,再将耕地面积加权平均国家自然等别、利用等别、经济等别指数分别与选取的耕地景观格局指数进行相关性分析。研究得出,耕地质量国家自然等指数与耕地边界密度呈极显著负相关,相关系数为-0.393(P<0.01);耕地质量国家利用等指数与耕地平均斑块大小和香农多样性指数呈极显著正相关,相关系数分别为0.343(P<0.01)和0.416(P<0.01);耕地质量国家经济等指数与耕地边界密度呈极显著负相关,相关系数为-0.381(P<0.01)。因此部分景观格局指数与耕地质量之间存在明显的相关性,可以在一定程度上反映该区域内耕地质量与景观格局指数间的关联。研究结果可为从景观格局角度实现耕地质量的提升与保护工作提供科学参考,对国家层面做出优化区域耕地空间布局决策也具有一定的现实意义。

关键词: 耕地质量, 景观格局指数, 相关性分析, 空间异质性, 鹰潭市

Abstract:

Studying the relationship between cultivated land quality and landscape patterns can provide a scientific basis for strengthening the protection and enhancement of national cultivated land quality. Using 2022 cultivated land quality data in Yingtan City, Jiangxi Province, the study comprehensively analyzed the overall cultivated land quality situation in Yingtan based on the cultivated land quality evaluation. Landscape pattern indices such as patch area, percent of landscape, edge density, patch density, landscape shape index, mean patch size, landscape division index, contagion index, and Shannon’s diversity index were selected to calculate in Fragstats 4.2 software, and then cultivated land area weighted average national natural level index, cultivated land area weighted average national use level index and cultivated land area weighted average national economic level index were correlated with the selected cultivated landscape pattern indices, respectively. It was concluded that the cultivated land quality national natural level index was significantly and negatively correlated with the edge density of cultivated land, with a correlation coefficient of -0.393 (P<0.01); the cultivated land quality national use level index was significantly and positively correlated with the mean patch size of cultivated land and the Shannon’s diversity index, with correlation coefficients of 0.343 (P<0.01) and 0.416 (P<0.01), respectively; the cultivated land quality national economic level index was significantly and negatively correlated with the edge density of cultivated land, with a correlation coefficient of -0.381 (P<0.01). Thus, there was a clear correlation between some of the landscape pattern indices and cultivated land quality, which could reflect to some extent the correlation between cultivated land quality and landscape pattern indices within the region. The results of the study can provide scientific references for the improvement and protection of cultivated land quality from the perspective of landscape pattern, and also have certain practical significance for the national level decision-making on the optimization of regional spatial layout of cultivated land.

Key words: cultivated land quality, landscape pattern index, correlation analysis, spatial heterogeneity, Yingtan City