globalchange  > 过去全球变化的重建
DOI: 10.3390/rs11131593
WOS记录号: WOS:000477049000084
论文题名:
Winter Wheat Green-up Date Variation and its Diverse Response on the Hydrothermal Conditions over the North China Plain, Using MODIS Time-Series Data
作者: Guo, Linghui1,2; Gao, Jiangbo3; Hao, Chengyuan1; Zhang, Linlin3,4; Wu, Shaohong3,4; Xiao, Xiangming2
通讯作者: Gao, Jiangbo
刊名: REMOTE SENSING
ISSN: 2072-4292
出版年: 2019
卷: 11, 期:13
语种: 英语
英文关键词: winter wheat ; green-up date ; hydrothermal conditions ; North China Plain
WOS关键词: GROSS PRIMARY PRODUCTION ; CLIMATE-CHANGE ; NONLINEAR RESPONSE ; SPRING PHENOLOGY ; VEGETATION PHENOLOGY ; CARBON UPTAKE ; YIELD ; TEMPERATURE ; IMPACTS ; NDVI
WOS学科分类: Remote Sensing
WOS研究方向: Remote Sensing
英文摘要:

Vegetation phenology plays a critical role in the dynamic response of terrestrial ecosystems to climate change. However, the relationship between the phenology of winter wheat and hydrothermal factors is inadequate, especially in typical agricultural areas. In this study, the possible effects of preseason climate changes on the green-up date (GUD) of winter wheat over the North China Plain (NCP) was investigated, using the MODIS EVI 8-day time-series data from 2000 to 2015, as well as the concurrent monthly mean temperature (T-m), mean maximum (T-max) and minimum temperature (T-min) and total precipitation (TP) data. Firstly, we quantitatively identified the time lag effects of winter wheat GUD responses to different climatic factors; then, the major driving factors for winter wheat GUD were further explored by applying multiple linear regression models. The results showed that the time lag effects of winter wheat GUD response to climatic factors were site- and climatic parameters-dependent. Negative temperature effects with about a 3-month time lag dominated in most of the NCP, whereas positive temperature effects with a zero-month lag were most common in some of the southern parts. In comparison, total precipitation had a negative zero-month lag effect in the northern region, but two lagged months occurred in the south. Regarding the time lag effects, the explanation power of climatic factors improved relatively by up to 77%, and the explanation area increased by 41.20%. Additionally, change in winter wheat GUD was primarily determined by temperature rather than by TP, with a marked spatial heterogeneity of the T-max and T-min effect. Our results confirmed different time lag effects from different climatic factors on phenological processes in spring, and further suggested that both T-max and T-min should be considered to improve the performance of spring phenology models.


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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/141298
Appears in Collections:过去全球变化的重建

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作者单位: 1.Henan Polytech Univ, Sch Surveying & Land Informat Engn, Jiaozuo 454000, Henan, Peoples R China
2.Univ Oklahoma, Ctr Spatial Anal, Dept Microbiol & Plant Biol, Norman, OK 73019 USA
3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, 11A Datun Rd, Beijing 100101, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China

Recommended Citation:
Guo, Linghui,Gao, Jiangbo,Hao, Chengyuan,et al. Winter Wheat Green-up Date Variation and its Diverse Response on the Hydrothermal Conditions over the North China Plain, Using MODIS Time-Series Data[J]. REMOTE SENSING,2019-01-01,11(13)
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