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Alpine grassland fPAR change over the Northern Tibetan Plateau from 2002 to 2011
Chen Baoxiong1; Zhang Xianzhou2; Sun Yufang1; Wang Jingsheng2; He Yongtao2
2017
Source PublicationAdvances in Climate Change Research
ISSN1674-9278
Volume8Issue:2Pages:108
AbstractIn this study, two different methods including Digital Camera and Reference Panel (DCRP) and traditional in situ fPAR observation for measuring the in situ point fPAR of very short alpine grass vegetation were compared, and the Moderate Resolution Imaging Spectroradiometer (MODIS) fPAR products were evaluated and validated by in situ point data on the alpine grassland over the Northern Tibetan Plateau, which is sensitive to climate change and vulnerable to anthropogenic activities. Results showed that the MODIS alpine grassland fPAR product, examined by using DCRP, and traditional in situ fPAR observation had a significant relationship at the spatial and temporal scales. The decadal MODIS fPAR trend analysis showed that, average growing season fPAR increased by 1.2×10 ?4 per year and in total increased 0.86% from 2002 to 2011 in alpine grassland, when most of the fPAR increments occurred in southeast and center of the Northern Tibetan Plateau, the alpine grassland tended to recover from degradation slightly. However, climatic factors have influenced the various alpine grassland vegetation fPAR over a period of 10 years; precipitation significantly affected the alpine meadow fPAR in the eastern region, whereas temperature considerably influenced the alpine desert steppe fPAR in the west region. These findings suggest that the regional heterogeneity in alpine grassland fPAR results from various environmental factors, except for vegetation characteristics, such as canopy structure and leaf area.
Language英语
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/82084
Collection中国科学院地理科学与资源研究所
Affiliation1.Rural Energy & Environment Agency, Ministry of Agriculture of the People's Republic of China
2.中国科学院地理科学与资源研究所
Recommended Citation
GB/T 7714
Chen Baoxiong,Zhang Xianzhou,Sun Yufang,et al. Alpine grassland fPAR change over the Northern Tibetan Plateau from 2002 to 2011[J]. Advances in Climate Change Research,2017,8(2):108.
APA Chen Baoxiong,Zhang Xianzhou,Sun Yufang,Wang Jingsheng,&He Yongtao.(2017).Alpine grassland fPAR change over the Northern Tibetan Plateau from 2002 to 2011.Advances in Climate Change Research,8(2),108.
MLA Chen Baoxiong,et al."Alpine grassland fPAR change over the Northern Tibetan Plateau from 2002 to 2011".Advances in Climate Change Research 8.2(2017):108.
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