Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.13562 |
Response of vegetation phenology to urbanization in the conterminous United States | |
Li, Xuecao1; Zhou, Yuyu1; Asrar, Ghassem R.2; Mao, Jiafu3; Li, Xiaoma1; Li, Wenyu4 | |
2017-07-01 | |
发表期刊 | GLOBAL CHANGE BIOLOGY
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ISSN | 1354-1013 |
EISSN | 1365-2486 |
出版年 | 2017 |
卷号 | 23期号:7 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Peoples R China |
英文摘要 | The influence of urbanization on vegetation phenology is gaining considerable attention due to its implications for human health, cycling of carbon and other nutrients in Earth system. In this study, we examined the relationship between change in vegetation phenology and urban size, an indicator of urbanization, for the conterminous United States. We studied more than 4500 urban clusters of varying size to determine the impact of urbanization on plant phenology, with the aids of remotely sensed observations since 2003-2012. We found that phenology cycle (changes in vegetation greenness) in urban areas starts earlier (start of season, SOS) and ends later (end of season, EOS), resulting in a longer growing season length (GSL), when compared to the respective surrounding urban areas. The average difference of GSL between urban and rural areas over all vegetation types, considered in this study, is about 9 days. Also, the extended GSL in urban area is consistent among different climate zones in the United States, whereas their magnitudes are varying across regions. We found that a tenfold increase in urban size could result in an earlier SOS of about 1.3 days and a later EOS of around 2.4 days. As a result, the GSL could be extended by approximately 3.6 days with a range of 1.6-6.5 days for 25th similar to 75th quantiles, with a median value of about 2.1 days. For different vegetation types, the phenology response to urbanization, as defined by GSL, ranges from 1 to 4 days. The quantitative relationship between phenology and urbanization is of great use for developing improved models of vegetation phenology dynamics under future urbanization, and for developing change indicators to assess the impacts of urbanization on vegetation phenology. |
英文关键词 | phenology response urban expansion urban size urbanization vegetation type |
领域 | 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000402514900023 |
WOS关键词 | LAND-SURFACE PHENOLOGY ; GROSS PRIMARY PRODUCTIVITY ; URBAN HEAT-ISLAND ; GREEN-UP DATE ; CLIMATIC VARIATION ; DECIDUOUS FORESTS ; SPRING PHENOLOGY ; MODIS ; CARBON ; GROWTH |
WOS类目 | Biodiversity Conservation ; Ecology ; Environmental Sciences |
WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/17021 |
专题 | 气候变化 资源环境科学 |
作者单位 | 1.Iowa State Univ, Dept Geol & Atmospher Sci, Ames, IA 50011 USA; 2.Pacific Northwest Natl Lab, Joint Global Change Res Inst, College Pk, MD 20740 USA; 3.Oak Ridge Natl Lab, Climate Change Sci Inst, Oak Ridge, TN 37831 USA; 4.Tsinghua Univ, Ctr Earth Syst Sci, Key Lab Earth Syst Modeling, Minist Educ, Beijing 100084, Peoples R China |
推荐引用方式 GB/T 7714 | Li, Xuecao,Zhou, Yuyu,Asrar, Ghassem R.,et al. Response of vegetation phenology to urbanization in the conterminous United States[J]. GLOBAL CHANGE BIOLOGY,2017,23(7). |
APA | Li, Xuecao,Zhou, Yuyu,Asrar, Ghassem R.,Mao, Jiafu,Li, Xiaoma,&Li, Wenyu.(2017).Response of vegetation phenology to urbanization in the conterminous United States.GLOBAL CHANGE BIOLOGY,23(7). |
MLA | Li, Xuecao,et al."Response of vegetation phenology to urbanization in the conterminous United States".GLOBAL CHANGE BIOLOGY 23.7(2017). |
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