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A Review on Alpine Grassland Phenology on the Tibetan Plateau |
Zhang Xiaoke1,Du Xindong1,Lu Xuyang2,Wang Xiaodan2 |
(1.School of Public Administration,Hehai University,Nanjing 210098,China;
2.Key Laboratory of Mountain Surface Processes and Ecological Regulation,
Institute of Mountain Hazards and Environment,Chinese Academy of Sciences,Chengdu 610041,China) |
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Abstract Vegetation phenology is the most intuitive and sensitive indicator of seasonal and inter-annual variability under environment conditions.The phenology monitoring methods mainly include field observation,phenology model,digital camera and remote sensing technology.On the Tibetan Plateau,the start of growing season for alpine grassland had four viewpoints:experiencing an advancing and advancing in fluctuating trend,a postponing trend and no change,respectively.Phenology phases experience interactions with climatic factors.These factors,such as temperature,precipitation,CO2 concentration,snow cover and extreme climate,play an important role in alpine grasslandgrowth.Meanwhile,phenology changes at different scales and the driving factors are uncertainty.Finally,the existing problems and the future research directions were discussed.
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Received: 21 January 2018
Published: 10 May 2019
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