干旱区生态环境知识资源中心(Arid): 干旱区绿洲城市生态环境时空变化特征分析--以克拉玛依市为例

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	干旱区绿洲城市生态环境时空变化特征分析--以克拉玛依市为例
其他题名	Temporal and spatial variation characteristics of oasis urban ecological environment in arid region:A case study of Karamay City
	周玄德; 郭华东; 杨胜天; 孜比布拉·司马义; 邓祖涛; 梁滨
来源期刊	干旱区地理
ISSN	1000-6060
出版年	2021
卷号	44 期号:4 页码:1070-1082
中文摘要	干旱区绿洲城市生态环境极为脆弱,准确了解生态环境时空变动情况具有重要意义。选择典型的干旱绿洲城市克拉玛依市为研究对象,分别选取2001、2006、2011年和2016年4个时期的遥感影像,通过计算遥感生态指数表征生态环境质量状况,从变化趋势、空间分布、等级划分、变动特征及重心转移等方面进行分析。结果表明:(1)研究区遥感生态指数呈现波动性变化,整体水平不高,均维持在0.35上下波动,其中主要以低、较低等级的生态指数为主。(2)研究区生态指数等级变化主要表现为一个等级的变化,越级变化的较少,不同等级遥感生态指数区域面积在不同时间段的变化量、动态度差异显著。(3)低生态指数到高遥感生态指数的生态位表现为明显的上升趋势,生态位数值均较小,最大值仅0.3677,不同等级生态指数生态位的提升还有很大空间。(4)不同等级遥感生态指数的重心都出现了不同程度的偏移,其中高生态指数区域的空间移动性大,平均距离为42.60 km,低生态指数区域在空间上相对稳定。该研究探寻了人类活动过程中生态环境的时空变动规律,对干旱区绿洲城市的可持续发展具有一定的现实意义。
英文摘要	The ecological environment of oasis cities in arid regions is extremely fragile.Accurately understanding the spatiotemporal changes in the ecological environment of such cities due to urbanization is of great significance.Karamay,Xinjiang,China,which is an oasis city in an arid region,was selected as the research object in this study.It is located in the most vast and flat gobi desert;this area has become a gathering point of the petroleum and petrochemical industry,which has greatly stressed the fragile ecological environment.LandsatTM/ ETM+/OLI remote sensing images from four time periods (2001,2006,2011,and 2016) were collected,and a remote sensing ecological index was used to reflect the ecological environment.The variation degree,ecological niche,and gravity center methods were adopted to model the variation,spatial distribution,classification, variation characteristics,and gravity center transfer of the ecological environment.The following conclusions were obtained.(1) The remote sensing ecological index was not high in the study area and fluctuated approximately 0.35.The ecological index values were generally low.(2) Changes in the ecological index grade mainly manifested as rises and falls with few sudden increases.The areas of different types of remote sensing ecological index domains varied significantly among different time periods.(3) The changes in the ecological niche from low to high showed an obvious upward trend.This indicates that a higher ecological index level represents a higher ecological niche;in other words,better ecological environment quality improves the ability to obtain resources.However,the niche values of different types of remote sensing ecological indices were all small with a maximum value of 0.3677.Thus,there remains much space for improving the niche of different types of ecological indices.(4) The center of gravity of different types of remote sensing ecological indices shifted to different degrees.The regions with a high ecological index had strong spatial mobility with an average distance of 42.60 km,whereas regions with a low ecological index were relatively stable spatially.This study explored the temporal and spatial variations in the ecological environment due to human activities and found that urban farmland,park vegetation,residential greening,water,and other elements play a significant role in maintaining a good ecological environment.These results demonstrate humans'ability to protect the environment.However, there was serious ecological deterioration around the G217 National Highway,which reflects the ecological damage caused by human activities.The above conclusions show that the acceleration of urbanization and implementation of environmental protection need not be in conflict.Understanding the relationship between urban development and environmental protection is significant for the sustainable development of oasis cities in arid regions.
中文关键词	绿洲 ; 生态环境 ; 遥感生态指数 ; 时空变化 ; 克拉玛依市
英文关键词	oasis ecological environment remote sensing ecological index spatio-temporal variation Karamay City
类型	Article
语种	中文
收录类别	CSCD
WOS类目	Environmental Sciences & Ecology
CSCD记录号	CSCD:7034583
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/377626
作者单位	周玄德, 湖北经济学院旅游与酒店管理学院, 武汉, 湖北 430205, 中国.; 邓祖涛, 湖北经济学院旅游与酒店管理学院, 武汉, 湖北 430205, 中国.; 梁滨, 湖北经济学院旅游与酒店管理学院, 武汉, 湖北 430205, 中国.; 郭华东, 中国科学院对地观测与数字地球科学中心, 中国科学院数字地球重点实验室, 北京 100094, 中国.; 杨胜天, 新疆大学资源与环境科学学院, 乌鲁木齐, 新疆 830046, 中国.; 孜比布拉·司马义, 新疆大学资源与环境科学学院, 乌鲁木齐, 新疆 830046, 中国.
推荐引用方式 GB/T 7714	周玄德,郭华东,杨胜天,等. 干旱区绿洲城市生态环境时空变化特征分析--以克拉玛依市为例[J],2021,44(4):1070-1082.
APA	周玄德,郭华东,杨胜天,孜比布拉·司马义,邓祖涛,&梁滨.(2021).干旱区绿洲城市生态环境时空变化特征分析--以克拉玛依市为例.干旱区地理,44(4),1070-1082.
MLA	周玄德,et al."干旱区绿洲城市生态环境时空变化特征分析--以克拉玛依市为例".干旱区地理 44.4(2021):1070-1082.