Response Patterns of Vegetation Phenology along Urban-Rural Gradients in Urban Areas of Different Sizes

doi:10.1155/2020/7607936

	Response Patterns of Vegetation Phenology along Urban-Rural Gradients in Urban Areas of Different Sizes
	Luo, Xue 2; Zhang, Yuqing 2; Sun, Dongqi 1
刊名	COMPLEXITY
	2020-06-20
卷号	2020 页码:11
ISSN号	1076-2787
DOI	10.1155/2020/7607936
通讯作者	Zhang, Yuqing(zhangyuqing@lnnu.edu.cn) ; Sun, Dongqi(sundq@igsnrr.ac.cn)
英文摘要	On the basis of MODIS Enhanced Vegetation Index time series data and multisource data, such as nighttime light data and China City Statistical Yearbook data, we investigated the differences in vegetation phenology along urban-rural gradients in urban areas of different sizes between coastal and inland cities in Liaoning Province, China. The results showed that the following: (1) the iterative extraction of urban built-up areas using the threshold method based on nighttime light data combined with the definition of urban built-up areas had high accuracy. (2) Additionally, we found that the start of the growing season (SOS) in Liaoning Province occurred between day 100 and day 180, while the end of the growing season (EOS) occurred between days 260 and 330. The difference in the SOS between coastal cities (i.e., Dalian, Yingkou, Panjin, Jinzhou, Huludao, and Dandong) and inland cities (i.e., Chaoyang, Fuxin, Tieling, Shenyang, Fushun, Liaoyang, Benxi, and Anshan) was 1.70 days. However, the difference in the EOS was more significant, i.e., the EOS in coastal cities occurred 4.47 days later than that in the inland cities. (3) In urban areas of different sizes, the increment SOS and increment EOS of inland cities had negative correlations with urban size. Specifically, when the urban size increased 10-fold, the increment SOS and increment EOS advanced by 10.03 and 5.71 days, respectively. In contrast, the increment SOS and increment EOS of coastal cities had positive and negative correlations with the urban size, respectively. Specifically, when urban size increased 10-fold, increment SOS was delayed by 11.29 days while EOS was advanced by 8.83 days.
资助项目	National Natural Science Foundation of China[41771178] ; National Natural Science Foundation of China[41630749] ; National Natural Science Foundation of China[41471140] ; Program for Liaoning Innovative Talents in University[LR2017017] ; Liaoning Province Outstanding Youth Program[LJQ2015058]
WOS关键词	LAND-SURFACE PHENOLOGY ; SPRING PHENOLOGY ; CLIMATE-CHANGE ; HIGH-LATITUDES ; GREEN-UP ; URBANIZATION ; CHINA ; DYNAMICS ; PRECIPITATION ; MOUNTAINS
WOS研究方向	Mathematics ; Science & Technology - Other Topics
语种	英语
出版者	WILEY-HINDAWI
WOS记录号	WOS:000546142400003
资助机构	National Natural Science Foundation of China ; Program for Liaoning Innovative Talents in University ; Liaoning Province Outstanding Youth Program
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/162430]
专题	中国科学院地理科学与资源研究所
通讯作者	Zhang, Yuqing; Sun, Dongqi
作者单位	1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Reg Sustainable Dev Modeling, Beijing 100101, Peoples R China 2.Liaoning Normal Univ, Human Settlements Res Ctr, Dalian 116029, Peoples R China
推荐引用方式 GB/T 7714	Luo, Xue,Zhang, Yuqing,Sun, Dongqi. Response Patterns of Vegetation Phenology along Urban-Rural Gradients in Urban Areas of Different Sizes[J]. COMPLEXITY,2020,2020:11.
APA	Luo, Xue,Zhang, Yuqing,&Sun, Dongqi.(2020).Response Patterns of Vegetation Phenology along Urban-Rural Gradients in Urban Areas of Different Sizes.COMPLEXITY,2020,11.
MLA	Luo, Xue,et al."Response Patterns of Vegetation Phenology along Urban-Rural Gradients in Urban Areas of Different Sizes".COMPLEXITY 2020(2020):11.