Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.3390/rs8010006 |
Urban Land-Cover Change and Its Impact on the Ecosystem Carbon Storage in a Dryland City | |
Yan, Yan1,2; Zhang, Chi1,3; Hu, Yunfeng4; Kuang, Wenhui4 | |
通讯作者 | Zhang, Chi |
来源期刊 | REMOTE SENSING
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ISSN | 2072-4292 |
出版年 | 2016 |
卷号 | 8期号:1 |
英文摘要 | Lack of research into the complexity in urban land conversion, and paucity of observational data of soil organic carbon (SOC) beneath impervious surface area (ISA) limit our understanding of the urbanization effects on carbon (C) pools in dryland cities. Employing Landsat TM images acquired in 1990 and 2010, a hybrid classification method consisting of Linear Spectral Mixture Analysis and decision tree classification was applied to retrieve the land cover (water, ISA, greenspace, cropland, and remnant desert) of the largest dryland city in ChinaUrumqi. Based on vegetation carbon (VEGC) and SOC density data determined through field observations and literature reviews, we developed Urumqi’s C pool maps in 1990 and 2010, and assessed the urbanization impacts on ecosystem C. Our results showed that ISA tripled from 1990 to 2010 displacing remnant desert and cropland. The urban landscape, especially the greenspaces, became obviously fragmented. In 2010, more than 95% of the urban ecosystem C was SOC, 48% of which under the ISA. The city lost 19% of C stock from 1990 to 2010. About 82% of the ecosystem C loss was caused by the conversion of remnant desert and cropland into ISA, mainly in the northern city. |
英文关键词 | land-cover change ecosystem organic C soil organic C vegetation C Urumqi |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
收录类别 | SCI-E |
WOS记录号 | WOS:000369495800004 |
WOS关键词 | IMPERVIOUS SURFACE ; SOIL CARBON ; MULTITEMPORAL LANDSAT ; CLASSIFICATION ; URBANIZATION ; ACCURACY ; STOCKS ; AREA ; SEQUESTRATION ; BIODIVERSITY |
WOS类目 | Remote Sensing |
WOS研究方向 | Remote Sensing |
来源机构 | 中国科学院新疆生态与地理研究所 ; 中国科学院地理科学与资源研究所 |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/195931 |
作者单位 | 1.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, Urumqi 830011, Peoples R China; 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 3.Hubei Univ Sci & Technol, Sch Resources Environm Sci & Engn, Xianning 437100, Peoples R China; 4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China |
推荐引用方式 GB/T 7714 | Yan, Yan,Zhang, Chi,Hu, Yunfeng,et al. Urban Land-Cover Change and Its Impact on the Ecosystem Carbon Storage in a Dryland City[J]. 中国科学院新疆生态与地理研究所, 中国科学院地理科学与资源研究所,2016,8(1). |
APA | Yan, Yan,Zhang, Chi,Hu, Yunfeng,&Kuang, Wenhui.(2016).Urban Land-Cover Change and Its Impact on the Ecosystem Carbon Storage in a Dryland City.REMOTE SENSING,8(1). |
MLA | Yan, Yan,et al."Urban Land-Cover Change and Its Impact on the Ecosystem Carbon Storage in a Dryland City".REMOTE SENSING 8.1(2016). |
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