Spatial-temporal Evolution and Driving Factors of Ecological Land Use in Fuxian Lake Basin

Yin Juan; Zi Benfei; Yang Liyong; Chen Jingyi

doi:10.13961/j.cnki.stbctb.2020.06.033

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Spatial-temporal Evolution and Driving Factors of Ecological Land Use in Fuxian Lake Basin

- Spatial-temporal Evolution and Driving Factors of Ecological Land Use in Fuxian Lake Basin
- Bulletin of Soiland Water Conservation Vol. 40, Issue 6, Pages: 228-235(2020)
- 作者机构：
  
  1. 玉溪师范学院地理与国土工程学院,云南,玉溪,653100
  2. 玉溪市基础地理信息中心,云南,玉溪,653100
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2020.06.033
  CLC： F301.24
- Published：2020
- 稿件说明：
移动端阅览
Yin Juan, Zi Benfei, Yang Liyong, et al. Spatial-temporal Evolution and Driving Factors of Ecological Land Use in Fuxian Lake Basin[J]. Bulletin of Soiland Water Conservation, 2020, 40(6): 228-235.
DOI：

Yin Juan, Zi Benfei, Yang Liyong, et al. Spatial-temporal Evolution and Driving Factors of Ecological Land Use in Fuxian Lake Basin[J]. Bulletin of Soiland Water Conservation, 2020, 40(6): 228-235. DOI： 10.13961/j.cnki.stbctb.2020.06.033.

摘要

[目的

]

研究生态用地时空演变规律及形成机制，为维持区域生态平衡和保障生态文明建设提供科学参考。[方法

]

运用土地利用变化幅度、洛伦兹曲线、基尼系数、回归分析及GIS技术等方法，分析2010-2018年抚仙湖流域生态用地时空演变特征及其形成机理。[结果

]

①抚仙湖流域生态用地以耕地、林地和水域及水利设施用地为主。8 a来，耕地面积减少5.15 km

，林地面积减少1.94 km

，草地面积减少0.81 km

，园地面积减少0.19 km

，其他土地面积减少1.40 km

，水域及水利设施用地面积增加0.03 km

。②流域各种生态用地空间分布差异较大，耕地、林地空间分布较均匀，洛伦兹曲线比较靠近绝对均匀线，基尼系数居0~0.25之间。草地、园地、水域及水利设施用地和其他土地分布相对集中，洛伦兹曲线下凹程度较大，基尼系数多处于0.5之上。生态用地空间分布不均的趋势有所加强。③从驱动机制来看，导致流域生态用地时空变化的主要驱动因素为人口密度、城镇化水平、政策、到主要公路距离、到水域距离、到城镇建成区距离。[结论

]

研究时段内，抚仙湖流域生态用地时空变化较显著，其变化是自然条件、社会经济条件及空间区位条件多种因素协同作用的结果。

Abstract

[Objective] The spatial and temporal evolution and formation mechanism of ecological land was studied in order to provide scientific reference for maintaining regional ecological balance and ensuring the construction of ecological civilization.[Methods] The land use change amplitude

Lorentz curve

Gini coefficient

regression analysis and GIS technology were used to comprehensively analyze the spatial-temporal evolution characteristics of ecological land in Fuxian Lake basin from 2010 to 2018

and discuss its formation mechanism.[Results] ① The main types of ecological land use in Fuxian Lake basin were cultivated land

forest land

water area and water conservancy facilities. In the past 8 years

the area of arable land

woodland

grassland

garden land and other land decreased by 5.15

1.94

0.81

0.19 and 1.40 km2

respectively

while the area of water and water conservancy facilities increased by 0.03 km2. ② The spatial distribution of various ecological land in the river basin was quite different

the spatial distribution of cultivated land and forest land was relatively uniform. The Lorentz curve was relatively close to the absolute uniform line

and the Gini coefficient was 0~0.25. The distribution of grassland

garden land

water area and water conservancy facilities

unused land were relatively concentrated. The Lorentz curve was more concave

and the Gini coefficient was mostly above 0.5. The uneven spatial distribution of ecological land has strengthened. ③ From the perspective of driving mechanism

the main driving factors that driving the temporal and spatial changes of ecological land in the river basin were population density

urbanization level

policy

distance to major roads

distance to waters

and distance to urban built-up areas.[Conclusion] During the study period

the temporal and spatial changes of the ecological land in Fuxian Lake basin were significant

which is the result of the synergistic effect of various factors

such as natural conditions

socio-economic conditions and spatial location conditions.

关键词

Keywords

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