干旱区生态环境知识资源中心(Arid): 基于生境质量的绿洲城镇空间扩展模拟研究以黑河中游地区为例

Arid

	基于生境质量的绿洲城镇空间扩展模拟研究以黑河中游地区为例
其他题名	Simulation of urban spatial expansion in oasis towns based on habitat quality: a case study of the middle reaches of Heihe River
	李骞国; 王录仓; 严翠霞; 刘海洋
来源期刊	生态学报
ISSN	1000-0933
出版年	2020
卷号	40 期号:9 页码:2920-2931
中文摘要	绿洲是生态环境极为脆弱的区域。实现绿洲城镇化与生态安全的双赢,是干旱区面临的重大问题。传统城镇空间扩展模拟研究,只是单向考虑了城镇发展趋势,而较少兼顾区域生境质量的约束。利用1992、2000、2008、2015年四期Landsat TM、ETM +、OLI遥感影像数据,以黑河中游地区为例。从城镇空间扩展与生态环境协调发展的角度出发,通过InVEST模型与SLEUTH模型的结合,将生境质量的评估结果融入到城镇扩展模型中,对研究区20152030年城镇扩展的土地利用变化格局进行模拟。研究表明: ①生境质量整体较低,质量阶序和退化程度分异明显。高、中等级生境质量区域主要分布在黑河干流沿线和绿洲核心区,分别占5.69%、32.77%,生境退化程度高;低等级生境质量区域主要分布在戈壁荒漠区和城镇建设区,占61.54%,生境退化程度低。②生境质量对城镇空间扩展的约束作用显著。相比较无生境质量约束,2030年城镇建设用地面积和占用生态用地面积分别减少了27.08%、63.61%,并且,城镇斑块间连接性较好、集聚程度高,以填充式扩展为主。③城镇空间扩展总体体现了生境质量的要求。2030年新增城镇建设用地主要占用中、低等级生境质量区域,分别为34.88%、63.36%。绿洲平原区和山前洪积扇区生境质量约束较强,较2015年仅增长了51.53%、48.31%;绿洲边缘区生境质量约束性低,较2015年增长了110.18%,是未来城镇发展的潜力区。研究结果为绿洲城镇与生态环境协调发展提供科学依据。
英文摘要	The oasis is a region with extremely fragile ecological environment. It is a major problem for arid areas to realize the win-win situation of urbanization and ecological security in oasis. The traditional simulation of urban spatial expansion only considers the urban development trend unilaterally,but less think about the constraints of regional habitat quality. Based on the Landsat TM,ETM+,OLI remote sensing image data of 1992,2000,2008 and 2015,we took the middle reaches of Heihe River as an example. From the perspective of coordinated development of urban spatial expansion and ecological environment and through the combination of InVEST model and SLEUTH model,the assessment results of habitat quality were integrated into the urban expansion model to simulate the land use change pattern of urban expansion in the study area from 2015 to 2030. The results showed that: 1) the overall quality of habitat in the study area was low,and the order of quality and the degree of degradation were obviously different. The high and middle grade habitat quality areas were mainly distributed along the main stream of Heihe River and the core area of oasis,accounting for 5.69% and 32.77%, respectively,but with a high degree of habitat degradation. The low-grade habitat quality areas were mainly distributed in Gobi desert area and urban construction area,accounting for 61.54%,with a low degree of habitat degradation. 2) The restriction effect of habitat quality on urban spatial expansion was significant. Compared with the non-habitat quality constraints,the area of urban construction land and the area of ecological land occupied decreased by 27.08% and 63.61% in 2030,respectively. Moreover,the connectivity between urban patches was better and the degree of agglomeration was higher,and thefillingexpansion was the main type. 3) Urban spatial expansion generally reflects the requirements of habitat quality. In 2030,the newly added urban construction land mainly would occupy the middle and low grade habitat quality areas,accounting for 34.88% and 63.36%,respectively. The habitat quality of oasis plain and piedmont alluvial sector would be strongly constrained,which only increased by 51.53% and 48.31% compared with 2015. The constraint of habitat quality in oasis marginal area would be low,which increased by 110.18% compared with 2015. It would be the potential area of urban development in the future. The results of study provides scientific basis for the coordinated development of oasis towns and ecological environment.
中文关键词	城镇空间扩展模拟 ; 绿洲城镇 ; 生境质量 ; InVEST模型 ; SLEUTH模型 ; 黑河中游地区
英文关键词	simulation of urban spatial expansion oasis town habitat quality InVEST model SLEUTH model middle reaches of the Heihe River
类型	Article
语种	中文
收录类别	CSCD
WOS研究方向	Construction & Building Technology
CSCD记录号	CSCD:6723014
来源机构	西北师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/336470
作者单位	李骞国, 西北师范大学,地理与环境科学学院, 兰州, 甘肃 730070, 中国.; 王录仓, 西北师范大学,地理与环境科学学院, 兰州, 甘肃 730070, 中国.; 严翠霞, 西北师范大学,地理与环境科学学院, 兰州, 甘肃 730070, 中国.; 刘海洋, 西北师范大学,地理与环境科学学院, 兰州, 甘肃 730070, 中国.
推荐引用方式 GB/T 7714	李骞国,王录仓,严翠霞,等. 基于生境质量的绿洲城镇空间扩展模拟研究以黑河中游地区为例[J]. 西北师范大学,2020,40(9):2920-2931.
APA	李骞国,王录仓,严翠霞,&刘海洋.(2020).基于生境质量的绿洲城镇空间扩展模拟研究以黑河中游地区为例.生态学报,40(9),2920-2931.
MLA	李骞国,et al."基于生境质量的绿洲城镇空间扩展模拟研究以黑河中游地区为例".生态学报 40.9(2020):2920-2931.