| How does the conversion of land cover to urban use affect net primary productivity? A case study in Shenzhen city, China | |
| Yu Deyong2; Shao Hongbo1,3,4; Shi Peijun2; Zhu Wenquan2; Pan Yaozhong2 | |
| 发表期刊 | AGRICULTURAL AND FOREST METEOROLOGY
 |
| ISSN | 0168-1923 |
| 2009-11-03 | |
| 卷号 | 149期号:11页码:2054-2060 |
| 关键词 | Urbanization Net Primary Productivity Ndvi Environmental Monitoring Land Use |
| 产权排序 | [Shao Hongbo] Qingdao Univ Sci & Technol, Inst Life Sci, Qingdao 266042, Peoples R China; [Yu Deyong; Shi Peijun; Zhu Wenquan; Pan Yaozhong] Beijing Normal Univ, State Key Lab Earth Surface Proc & Resource, Key Lab Environm Change & Nat Disaster, MOE Acad Disaster Reduct & Emergency Management, Beijing 100875, Peoples R China; [Shao Hongbo] Chinese Acad Sci, State Key Lab Soil Eros & Dryland Farming Loess P, Inst Soil & Water Conservat, Yangling 712100, Peoples R China; [Shao Hongbo] Chinese Acad Sci, Yantai Inst Costal Zone Res Sustainable Dev, Yantai 264003, Peoples R China |
| 通讯作者 | Shao, HB, Qingdao Univ Sci & Technol, Inst Life Sci, Qingdao 266042, Peoples R China |
| 作者部门 | 滨海湿地实验室 |
| 英文摘要 | China has made great economic achievements since the Reform and Opening policy implementation. Shenzhen as the representative city has experienced rapid urbanization and population growth. Urbanization strongly changes the nature of the land surface and has a large influence on the regional ecosystems. In the process of urbanization, fertile cropland and original forest are often destroyed. It is important to regularly monitor the effect of urbanization on the natural environment so as to allow us to control the encroachment to a reasonable extent. Net primary productivity (NPP) is an important productivity indicator of the ecosystem. We obtained land covers from Landsat TM images to quantify urbanization of Shenzhen between 1999 and 2005. We used the Moderate Resolution Imaging Spectroradiometer (MODIS-based) Normalized Difference Vegetation Index (NDVI) data, Landsat-based land cover map, meteorological data and other field data to drive the CASA productivity model and obtain net primary productivity for the study area. Finally, we estimated the effect of urban sprawl on regional NPP. The study on Landsat-based land cover maps indicated that a move towards urban is the most significant landscape change in Shenzhen City and urbanization has irreversibly transformed about 20.21% of Shenzhen's surface during 1999–2005. NPP loss mainly resulted from urbanization during 1999–2005 and totaled to 321.51 Gg of carbon, an average annual reduction of 45.93 Gg of carbon. For every square km of Shenzhen area, NPP was on average reduced by 0.0017 Gg of carbon during 1999–2005. The loss of NPP is equivalent to a reduction in absorption of 520.85 Gg CO2 and release of 385.81 Gg O2, so urbanization has a large influence on the regional net primary productivity.; China has made great economic achievements since the Reform and Opening policy implementation. Shenzhen as the representative city has experienced rapid urbanization and population growth. Urbanization strongly changes the nature of the land surface and has a large influence on the regional ecosystems. In the process of urbanization, fertile cropland and original forest are often destroyed. It is important to regularly monitor the effect of urbanization on the natural environment so as to allow us to control the encroachment to a reasonable extent. Net primary productivity (NPP) is an important productivity indicator of the ecosystem. We obtained land covers from Landsat TM images to quantify urbanization of Shenzhen between 1999 and 2005. We used the Moderate Resolution Imaging Spectroradiometer (MODIS-based) Normalized Difference Vegetation Index (NDVI) data, Landsat-based land cover map, meteorological data and other field data to drive the CASA productivity model and obtain net primary productivity for the study area. Finally, we estimated the effect of urban sprawl on regional NPP. The study on Landsat-based land cover maps indicated that a move towards urban is the most significant landscape change in Shenzhen City and urbanization has irreversibly transformed about 20.21% of Shenzhen's surface during 1999-2005. NPP loss mainly resulted from urbanization during 1999-2005 and totaled to 321.51 Gg of carbon, an average annual reduction of 45.93 Gg of carbon. For every square km of Shenzhen area, NPP was on average reduced by 0.0017 Gg of carbon during 1999-2005. The loss of NPP is equivalent to a reduction in absorption of 520.85 Gg CO(2) and release of 385.81 Gg O(2), so urbanization has a large influence on the regional net primary productivity. (C) 2009 Elsevier B.V. All rights reserved. |
| 文章类型 | Article |
| 资助机构 | National Natural Science Foundation of China [40801211]; Project of State Key Laboratory of Earth Surface Processes and Resources Ecology [070106, 2008-ZZ-05]; National Science Fund Project for Distinguished Young Scholars of the National Natural Science Foundation of China [40425008]; Chinese Academy of Sciences |
| 收录类别 | SCI |
| 语种 | 英语 |
| 关键词[WOS] | UNITED-STATES ; HUMAN APPROPRIATION ; SATELLITE DATA ; PHOTOSYNTHESIS ; BIODIVERSITY ; TERRESTRIAL ; ECOSYSTEMS ; IMPACT ; MODEL |
| 研究领域[WOS] | Agriculture ; Forestry ; Meteorology & Atmospheric Sciences |
| WOS记录号 | WOS:000270640300025 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.yic.ac.cn/handle/133337/4405 |
| 专题 | 中国科学院海岸带环境过程与生态修复重点实验室_滨海湿地实验室 |
| 作者单位 | 1.Qingdao Univ Sci & Technol, Inst Life Sci, Qingdao 266042, Peoples R China 2.Beijing Normal Univ, State Key Lab Earth Surface Proc & Resource, Key Lab Environm Change & Nat Disaster, MOE Acad Disaster Reduct & Emergency Management, Beijing 100875, Peoples R China 3.Chinese Acad Sci, State Key Lab Soil Eros & Dryland Farming Loess P, Inst Soil & Water Conservat, Yangling 712100, Peoples R China 4.Chinese Acad Sci, Yantai Inst Costal Zone Res Sustainable Dev, Yantai 264003, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yu Deyong,Shao Hongbo,Shi Peijun,et al. How does the conversion of land cover to urban use affect net primary productivity? A case study in Shenzhen city, China[J]. AGRICULTURAL AND FOREST METEOROLOGY,2009,149(11):2054-2060. |
| APA | Yu Deyong,Shao Hongbo,Shi Peijun,Zhu Wenquan,&Pan Yaozhong.(2009).How does the conversion of land cover to urban use affect net primary productivity? A case study in Shenzhen city, China.AGRICULTURAL AND FOREST METEOROLOGY,149(11),2054-2060. |
| MLA | Yu Deyong,et al."How does the conversion of land cover to urban use affect net primary productivity? A case study in Shenzhen city, China".AGRICULTURAL AND FOREST METEOROLOGY 149.11(2009):2054-2060. |
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