[1]贾语非,王秀荣*.贵阳市花溪区2008—2018年景观生态风险时空动态[J].山地学报,2023,(2):180-191.[doi:10.16089/j.cnki.1008-2786.000740]
　JIA Yufei,WANG Xiurong*.Spatio-Temporal Dynamics of Landscape Ecological Risks in Huaxi District of Guiyang City, Guizhou, China(2008-2018)[J].Mountain Research,2023,(2):180-191.[doi:10.16089/j.cnki.1008-2786.000740]
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贵阳市花溪区2008—2018年景观生态风险时空动态
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2023年第2期
页码:
180-191
栏目:
山地环境
出版日期:
2023-03-25

文章信息/Info

Title:
Spatio-Temporal Dynamics of Landscape Ecological Risks in Huaxi District of Guiyang City, Guizhou, China(2008-2018)
文章编号:
1008-2786-(2023)2-180-12
作者:
贾语非; 王秀荣*
(贵州大学 林学院, 贵阳 550025)
Author(s):
JIA Yufei; WANG Xiurong*
(College of Forestry in Guizhou University, Guiyang 550025, China)
关键词:
景观生态风险;  时空演变;  空间统计分析;  贵州花溪区
Keywords:
landscape ecological risk;  spatio-temporal evolution;  spatial statistical analysis;  Huaxi district;  Guizhou
分类号:
Q149
DOI:
10.16089/j.cnki.1008-2786.000740
文献标志码:
A
摘要:
贵州省贵阳市花溪区是“国家级生态示范区”,具备生态保护典型性及文旅产业代表性。近二十年来,发展文旅产业和快速城镇化给花溪区带来了一系列生态风险。研究花溪区生态风险变化,对合理指导城镇发展意义重大。当前有关花溪区生态风险的相关研究仅阐述了景观类型及生态风险的时空变化情况,对其变化原因分析不足,缺乏实践指导意义。本文基于花溪区景观生态风险评价结果,结合土地利用动态度模型及相关政策,采用空间统计学方法对其2008—2018年景观类型的相互转移、景观生态风险的空间分布及空间自相关特征进行分析,结果表明:(1)花溪区耕地面积显著减少,建设用地面积快速增加。耕地及乔灌地向建设用地转化以及耕地、乔灌地之间的相互转化是景观类型转变的主要模式。人类活动引起的景观转化对总体景观格局的影响不断增强。(2)花溪区高生态风险区域随城市建设向区域西北侧转移,分布更为集中,低生态风险区域稳定分布在东、北及西南侧,较为分散,总体景观生态风险空间分布呈现高建设强度区域生态风险高、山区城郊生态风险低的特征; 低生态风险区域面积先下降后上升,较高、高生态风险等级区域的面积先上升后下降,较低、中等生态风险区域变化相对稳定。(3)花溪区景观生态风险空间自相关性显著,局部自相关模式以高-高及低-低单元聚集为主,同时低-高及高-低聚集单元持续存在,区域空间异质性持续增强,人地矛盾突出。基于以上结论,本研究提出了统筹集约发展、合理推行建设,保护基本农田、支持第一产业,重视水文过程、把控岸线开发等建议。本研究可为贵州花溪区安全合理进行城镇发展提供指导,为后续相关研究提供借鉴。
Abstract:
Huaxi district of Guiyang city, Guizhou province, China is a national ecological demonstration area and also it is selected as the first batch of national tourism demonstration areas. With rapid urbanization, a series of ecological risks emerged in Huaxi, which need a systematic analysis of the ecological risk change mechanisms to rationally guide urban development. Past research tried to interpret the spatial and temporal changes of landscape types and ecological risks in Huaxi; however, it lacked a comprehensive analysis of the underlying reasons for these changes. In this study, it conducted an assessment of landscape ecological risks in Huaxi and statistically analyzed the mutual transformation of landscape types, spatial distribution, and spatial auto-correlation of landscape ecological risks from 2008 to 2018 by application of dynamic degree model and related policies of land use.
The analysis results are as follows:(1)In Huaxi district, the area of cultivated land decreased significantly, whereas that of construction land increased rapidly. The main pattern of landscape type transformation included the transformation of cultivated land and arbor and shrub lands to construction land, and the mutual transformation between the cultivated land and arbor and shrub lands. The effect of human-induced landscape transformation on the overall landscape pattern strengthened.(2)The area of high ecological risk in Huaxi shifted to the northwest of the region with urban construction and was more concentrated, whereas the area of low ecological risk was steadily distributed in the east, north, and southwest and was more scattered. According to the overall spatial distribution of the landscape ecological risk, the areas of high building intensity had high ecological risk; the outskirts and mountain areas had low ecological risk. The size of the low ecological risk area first decreased and then increased, and that of the high ecological risk area first increased and then decreased. However, the area of low and medium ecological risks remained relatively stable.(3)The spatial auto-correlation of the landscape ecological risk in Huaxi was significant. The local auto-correlation model was dominated by high-high and low-low unit aggregations, although low-high and high-low unit aggregations persisted. The regional spatial heterogeneity continued to increase, with the conflict between human activities and the natural environment being prominent. Based on these findings, it proposed to coordinate intensive development; reasonably implement construction; protect basic farmland; support primary industry; concern hydrological processes, and control shoreline development. This study provides a new insight into a safe and reasonable urban development roadmap in Huaxi as well as study orientation for similar ecological demonstration areas in China.

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备注/Memo

备注/Memo:
收稿日期(Received date): 2020-05-06; 改回日期(Accepted date):2023-04-08
基金项目(Foundation item): 国家自然科学基金(31760228)。[National Natural Science Foundation of China(31760228)]
作者简介(Biography): 贾语非(1994-),男,贵州贵阳人,硕士研究生,主要研究方向:地景规划与生态修复。[JIA Yufei(1994-),male,born in Guiyang,Guizhou province.M.Sc. candidate,research on landscape planning and ecological restoration]E-mail:jyf881986@163.com
*通讯作者(Corresponding author): 王秀荣(1972-),女,河南人,博士,教授,主要研究方向:园林植物、景观规划与生态修复。[WANG Xiurong(1972-),female, born in Henan. Ph.D., professor, research on landscape plants, landscape planning and ecological restoration]E-mail:wxr7211@126.com
更新日期/Last Update: 2023-03-30