Temporal and Spatial Changes of Land Use and Their Eco-environmental Effects in Nanchang City from 2000 to 2020

Wang Linyan; Tang Jianglong; Zhang Xiaoping

doi:10.13961/j.cnki.stbctb.2022.04.036

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Temporal and Spatial Changes of Land Use and Their Eco-environmental Effects in Nanchang City from 2000 to 2020

- Temporal and Spatial Changes of Land Use and Their Eco-environmental Effects in Nanchang City from 2000 to 2020
- Bulletin of Soiland Water Conservation Vol. 42, Issue 4, Pages: 286-292(2022)
- 作者机构：
  
  东华理工大学测绘工程学院,江西,南昌,330013
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2022.04.036
  CLC： F301.24
- Published：2022
- 稿件说明：
移动端阅览
Wang Linyan, Tang Jianglong, Zhang Xiaoping. Temporal and Spatial Changes of Land Use and Their Eco-environmental Effects in Nanchang City from 2000 to 2020[J]. Bulletin of Soiland Water Conservation, 2022, 42(4): 286-292.
DOI：

Wang Linyan, Tang Jianglong, Zhang Xiaoping. Temporal and Spatial Changes of Land Use and Their Eco-environmental Effects in Nanchang City from 2000 to 2020[J]. Bulletin of Soiland Water Conservation, 2022, 42(4): 286-292. DOI： 10.13961/j.cnki.stbctb.2022.04.036.

摘要

[目的] 分析南昌市因土地利用变化引起的区域生态环境效应，定量研究该区域国土资源开发与生态环境的关系，为区域生态环境保护、生态文明建设和绿色发展提供科学支持。[方法] 运用土地利用转移矩阵和核密度分析模型演算土地利用变化时空变动轨迹，用生态环境质量指数和生态贡献率推理出土地利用变化对生态系统的影响。[结果] ①2000—2020年，南昌市土地利用变化主要以草地、耕地转为建设用地，林地、水域转为耕地，耕地转为水域为主； ②2000—2020年，南昌市土地利用变化空间集聚演变主要集中在西北方向，其中耕地转水域是研究区生态环境改善的主要原因，水域转耕地和耕地转建设用地是区域生态环境退化的主要原因。[结论] 南昌市2000，2010，2020年的生态环境质量指数为0.354，0.351和0.352，生态环境质量相对稳定，但区内质量指数呈现下降趋势，有必要及时严格控制城镇开发边界和落实生态红线保护政策。

Abstract

[Objective] The regional ecological environmental effects caused by land use changes in Nanchang City by determining the quantitative relationships between regional land and resource development and ecological environments were analyzed in order to providing support for regional ecological environmental protection

ecological civilization construction

and green development.[Methods] The temporal and spatial change trajectory of land use changes was calculated by using a land use transfer matrix and a nuclear density analysis model. The impact of land use changes on the ecosystem was deduced by an eco-environmental quality index and the ecological contribution rate.[Results] ① From 2000 to 2020

the land use change in Nanchang City was mainly from grassland and cultivated land to construction land

from forest land and water area to cultivated land

and from cultivated land to water area; ② From 2000 to 2020

the spatial agglomeration evolution of land use change in Nanchang City was mainly concentrated in the northwest

and the conversion of cultivated land to water area was the main reason for the improvement of the ecological environment in the study area. The conversion of water area to cultivated land

and cultivated land to construction land were the main reasons for the degradation of the regional ecological environment.[Conclusion] The eco-environmental quality index of Nanchang City in 2000

2010 and 2020 was 0.354

0.351

and 0.352. This index was relatively stable

but the eco-environmental quality index in the region showed a downward trend. It will be necessary to strictly control the boundary of urban development and to implement an ecological red-line protection policy in the future.

关键词

Keywords

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