干旱区生态环境知识资源中心(Arid): 乌鲁木齐市土地生态安全综合评价

Arid

	乌鲁木齐市土地生态安全综合评价
其他题名	Comprehensive ecological security assessment: A case study of Urumqi City
	王一山; 张飞; 陈瑞; 齐亚霄; 刘长江
来源期刊	干旱区地理
ISSN	1000-6060
出版年	2021
卷号	44 期号:2 页码:1000-6060
中文摘要	土地生态环境是人类生产生活的重要场所,其安全状况与人类社会的可持续发展息息相关。通过选取干旱区城市乌鲁木齐市为研究对象,针对乌鲁木齐市2017年土地生态环境现状,应用生态系统服务价值(ESV)评估、景观生态安全指数(LES)、压力-状态-响应(PSR)模型共同构建乌鲁木齐市土地生态安全评价体系。结果表明:(1)2017年乌鲁木齐市ESV为220.70*10~8元, 97.48%的区域为中低ESV区域,ESV最重要的贡献来源是林草地,最主要的贡献区域是乌鲁木齐县和达坂城区,不同区域ESV差异明显。(2)乌鲁木齐市具备典型的干旱区城市景观特征,景观整体分布相对协调,但具备生态优势的景观分布还较少。景观生态安全(LES)指数从空间上表现为西低东高,且总体水平偏低,同时各区域的LES指数还有一定的分类组团特征,高值区域集中在达坂城区、乌鲁木齐县、米东区等边缘区域,中心城区的LES指数普遍较差,受人类活动影响深刻。(3)乌鲁木齐市各区域土地生态安全主要分布在敏感级和相对安全级之间,整体处于中等水平,边缘区域普遍高于中心区域,边缘区域中乌鲁木齐县的土地生态安全水平最高,中心区域中高新区土地生态安全水平最高。随着城市扩张和人口增长,土地侵占、资源消耗等矛盾加剧,部分区域的土地生态安全已经受到一定程度的破坏,能够维持现有水平,主要凭借乌鲁木齐市各区域的自然本底(状态),人类活动的恶劣影响(压力)和积极改善作用(响应)尚不明显。
英文摘要	For this study, we select the city of Urumqi, which is located in an arid region of China, as the research area and take 2017 as the time node. Then, we select 20 indicators in three aspects of nature, society, and economy to comprehensively characterize the level of LES in Urumqi. Combined with ecosystem services and landscape perspectives, spatial characteristics are described. The results show the following: (1) In 2017, the ESV in Urumqi was 22.07 billion yuan and 97.48% of its area was in the low- to-medium ESV domain. The most important source of ESV contribution were forest-grasslands, and the main contributing area was Urumqi County and Dabancheng District. Obvious differences were observed in the regional ESVs. (2) Urumqi has urban landscape characteristics that are typical of arid areas, and the overall distribution of its landscape is relatively coordinated. However, the landscape distribution having ecological advantages is currently small. The LES is spatially expressed aswest low and east high, and the overall level is relatively low. Meanwhile, the LESs in various regions exhibit certain classification features. High-value areas are concentrated in edge areas such as Dabancheng District, Urumqi County, and Midong District. In the marginal areas, the LES in the central urban area is generally poor and is deeply affected by human activities. (3) The land ecological security of the various regions of Urumqi City is mainly distributed between the sensitive and relative security levels. Overall ecological security of the city is at a medium level; the edge areas generally exhibited a higher level of ecological security than that exhibited by the central areas. Urumqi County has the highest land ecological security level in the edge area, and high-tech zones have the highest level of land ecological security. With urban expansion and population growth, land encroachment and resource consumption and other similar parameters have intensified. Moreover, the land ecological security in some regions has been destroyed to a certain extent; and it can maintain the current level mainly relying on the natural background (state) of each region in Urumqi. The adverse effects (stress) and positive improvement (response) of human activities are not yet obvious. At present, there is much room for improving the level of land ecological security in Urumqi. Areas with low levels of land ecological security are still concentrated in areas with frequent human activities. Unused land occupies a large proportion in the study area. The desertification situation of Urumqi is still very serious. Forest-grasslands and land covered by water are important to maintain the ecological safety of the land in this area. However, the landscape conditions are relatively poor. In the future, we must pay attention to the land use and environmental protection planning in the study area, especially the protection of forest-grassland and land covered by water. Simultaneously, to avoid the continued deterioration of the land ecological security level, a long-term dynamic monitoring mechanism for the land ecological environment should be established to strengthen the control of land development.
中文关键词	压力-状态-响应(PSR)模型 ; 生态系统服务价值 ; 景观生态安全 ; 土地生态安全评价 ; 乌鲁木齐
英文关键词	PSR model ecosystem service value landscape ecological security land ecological security assessment Urumqi City
类型	Article
语种	中文
国家	中国
收录类别	CSCD
WOS类目	Environmental Sciences & Ecology
CSCD记录号	CSCD:6950257
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/354262
作者单位	王一山, 新疆大学资源与环境科学学院;;新疆大学, 智慧城市与环境建模普通高校重点实验室;;绿洲生态教育部重点实验室, 乌鲁木齐;;乌鲁木齐, 新疆;;新疆 830046;;830046, 中国.; 陈瑞, 新疆大学资源与环境科学学院;;新疆大学, 智慧城市与环境建模普通高校重点实验室;;绿洲生态教育部重点实验室, 乌鲁木齐;;乌鲁木齐, 新疆;;新疆 830046;;830046, 中国.; 齐亚霄, 新疆大学资源与环境科学学院;;新疆大学, 智慧城市与环境建模普通高校重点实验室;;绿洲生态教育部重点实验室, 乌鲁木齐;;乌鲁木齐, 新疆;;新疆 830046;;830046, 中国.; 刘长江, 新疆大学资源与环境科学学院;;新疆大学, 智慧城市与环境建模普通高校重点实验室;;绿洲生态教育部重点实验室, 乌鲁木齐;;乌鲁木齐, 新疆;;新疆 830046;;830046, 中国.; 张飞, 新疆大学资源与环境科学学院;;新疆大学;;中亚地理信息开发利用国家测绘地理信息局工程技术研究中心, 智慧城市与环境建模普通高校重点实验室;;绿洲生态教育部重点实验室;;中亚地理信息开发利用国家测绘地理信息局工程技术研究中心, 乌鲁木齐;;乌鲁木齐;;乌鲁木齐, 新疆;;新疆;;新疆 830046;;830046;;830002, 中国.
推荐引用方式 GB/T 7714	王一山,张飞,陈瑞,等. 乌鲁木齐市土地生态安全综合评价[J],2021,44(2):1000-6060.
APA	王一山,张飞,陈瑞,齐亚霄,&刘长江.(2021).乌鲁木齐市土地生态安全综合评价.干旱区地理,44(2),1000-6060.
MLA	王一山,et al."乌鲁木齐市土地生态安全综合评价".干旱区地理 44.2(2021):1000-6060.