湖北农业科学 ›› 2021, Vol. 60 ›› Issue (22): 92-100.doi: 10.14088/j.cnki.issn0439-8114.2021.22.021

• 园艺·特产 • 上一篇    下一篇

三生空间视角下巴里坤县景观生态安全时空演变及耦合分析

赵娟1,2, 张云霞1,2, 张永福1,2   

  1. 1.新疆大学资源与环境科学学院,乌鲁木齐 830046;
    2.教育部绿洲生态重点实验室,乌鲁木齐 830046
  • 收稿日期:2020-11-30 出版日期:2021-11-25 发布日期:2021-12-10
  • 通讯作者: 张永福,副教授,主要从事国土资源评价与规划研究,(电子信箱)870587570@qq.com。
  • 作者简介:赵娟(1992-),女,河南驻马店人,硕士,主要从事国土资源利用与评价研究,(电话)18299197924(电子信箱)1459912574@qq.com。

Spatio-temporal evolution and coupling analysis of landscape ecological security in Balikun county from the perspective of Sansheng space

ZHAO Juan1,2, ZHANG Yun-xia1,2, ZHANG Yong-fu1,2   

  1. 1. School of Resources and Environmental Science,Xinjiang University,Urumqi 830046,China;
    2. The Oasis Ecology Key Laboratory of the Ministry of Education,Urumqi 830046,China
  • Received:2020-11-30 Online:2021-11-25 Published:2021-12-10

摘要: 基于“三生空间”视角,探究典型干旱区的景观生态安全演变特征,综合运用景观生态学、地统计学和耦合协调模型,系统分析巴里坤县2013—2019年景观生态安全时空变化特征和耦合协调特征。结果显示,①巴里坤县内牧草生态空间和其他生态空间占据主导地位,2019年牧草生态空间和农村生活空间面积分别减少了22.94%和26.49%,其余各生态空间面积有所增加。②研究区景观生态安全值总体呈上升趋势,2019年基本安全区和较安全区占比超过57.88%。③巴里坤县各景观单元评价小区景观生态安全值Moran's I指数均为正值,空间上存在正相关性,主要表现为高-高聚集和低-低聚集,其中2013—2016年表现为趋同性,2016—2019年表现为趋异性。2013和2016年各评价单元景观生态安全值半变异拟合最优模型为指数模型,2019年为线性模型,且随机因素(人为活动)引起的系统总变异呈下降趋势。④三生空间景观生态安全值耦合协调度逐年上升,其中基本协调、中度协调和高度协调区面积不断增加,分别增加了8 907.15、2 541.46和4 797.08 km2,严重失调区和中度失调区分别减少了10 750、5 490.38 km2

关键词: 三生空间, 景观生态安全, 耦合协调分析, 巴里坤县

Abstract: Based on the perspective of “Sansheng space”,we explored the evolution characteristics of landscape ecological security in typical arid areas,and comprehensively used landscape ecology, geostatistics and coupling coordination model. The spatio-temporal change characteristics and coupling coordination characteristics of landscape ecological security in Balikun county from 2013 to 2019 were analyzed systematically. The results showed that,①the forage ecological space and other ecological spaces in Balikun county were dominant, and the areas of forage ecological space and rural living space decreased by 22.94% and 26.49% respectively in 2019, while the areas of other ecological spaces increased. ②The landscape ecological security value of the study area showed an overall upward trend, and the proportion of basic safe areas and safer areas was more than 57.88% in 2019. ③ the Moran's I index of landscape ecological security value of each landscape unit in Balikun county was positive, and there was a positive correlation in space, which was mainly characterized by high-high aggregation and low-low aggregation, including convergence from 2013 to 2016 and divergence from 2016 to 2019. The semi-variation fitting optimal model of landscape ecological security value of each evaluation unit in 2013 and 2016 was exponential model, 2019 was linearl model, and the total variation of system caused by random factors (human activities) showed a downward trend. ④The coupling coordination degree of landscape ecological security value of Sansheng space increased year by year, in which the areas of basic coordination, moderate coordination and high coordination increased by 8 907.15 km2, 2 541.46 km2 and 4 797.08 km2 respectively, while 10 750 km2 and 5 490.38 km2 decreased in severe and moderately maladjusted areas, respectively.

Key words: Sansheng space, landscape ecological security, coupling coordination analysis, Balikun county

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