The relationship between NDVI and precipitation on the Tibetan Plateau

Ding, M. D.; Zhang, Yili; Liu, Linshan; Zhang, Wei; Wang, Zhaofeng; Bai, Weihua

doi:10.1007/s11442-007-0259-7

Cited by 150 publications

(89 citation statements)

References 9 publications

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“…3) were shown in alpine steppe, alpine meadow, and alpine desert steppe over the past 32 years. Precipitation was less than 200 mm in the northwestern part of the Tibetan Plateau (Ding et al 2007) because the southwest warm and humid air flow, the southeast monsoon, and the Siberian High regulated the precipitation. Thus, the slight increment resulted in a drastic changing trend during the observed period.…”

Section: Discussionmentioning

confidence: 99%

The response of vegetation dynamics of the different alpine grassland types to temperature and precipitation on the Tibetan Plateau

Sun

Qin

Yang

2015

Environ Monit Assess

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The spatiotemporal variability of the Normalized Difference Vegetation Index (NDVI) of three vegetation types (alpine steppe, alpine meadow, and alpine desert steppe) across the Tibetan Plateau was analyzed from 1982 to 2013. In addition, the annual mean temperature (MAT) and annual mean precipitation (MAP) trends were quantified to define the spatiotemporal climate patterns. Meanwhile, the relationships between climate factors and NDVI were analyzed in order to understand the impact of climate change on vegetation dynamics. The results indicate that the maximum of NDVI increased by 0.3 and 0.2 % per 10 years in the entire regions of alpine steppe and alpine meadow, respectively. However, no significant change in the NDVI of the alpine desert steppe has been observed since 1982. A negative relationship between NDVI and MAT was found in all these alpine grassland types, while MAP positively impacted the vegetation dynamics of all grasslands. Also, the effects of temperature and precipitation on different vegetation types differed, and the correlation coefficient for MAP and NDVI in alpine meadow is larger than that for other vegetation types. We also explored the percentages of precipitation and temperature influence on NDVI variation, using redundancy analysis at the observation point scale. The results show that precipitation is a primary limiting factor for alpine vegetation dynamic, rather than temperature. Most importantly, the results can serve as a tool for grassland ecosystem management.

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Section: Discussionmentioning

confidence: 99%

The response of vegetation dynamics of the different alpine grassland types to temperature and precipitation on the Tibetan Plateau

Sun

Qin

Yang

2015

Environ Monit Assess

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“…The Qinghai-Tibet Plateau alpine meadow region was the most sensitive to climate change (Ding et al, 2007;Xu and Liu, 2007;Li et al, 2010;Zhang et al, 2013). Human activities, such as the ''Green for Green" program, livestock overgrazing, and poor livestock management may also profoundly affect the vegetation growth in this areas .…”

Section: Discussionmentioning

confidence: 99%

Notable shifting in the responses of vegetation activity to climate change in China

Chen

Wang

et al. 2015

Physics and Chemistry of the Earth, Parts A/B/C

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a b s t r a c tThe weakening relationship between inter-annual temperature variability and vegetation activity in the Northern Hemisphere over the last three decades has been reported by a recent study. However, how and to what extent vegetation activity responds to climate change in China is still unclear. We applied the Pearson correlation and partial correlation methods with a moving 15-y window to the GIMMS NDVI dataset from NOAA/AVHRR and observed climate data to examine the variation in the relationships between vegetation activity and climate variables. Results showed that there was an expanding negative response of vegetation growth to climate warming and a positive role of precipitation. The change patterns between NDVI and climate variables over vegetation types during the past three decades pointed an expending negative correlation between NDVI and temperature and a positive role of precipitation over most of the vegetation types (meadow, grassland, shrub, desert, cropland, and forest). Specifically, correlation between NDVI and temperature (P NDVI-T ) have shifted from positive to negative in most of the station of temperature-limited areas with evergreen broadleaf forests, whereas precipitationlimited temperate grassland and desert were characterized by a positive P NDVI-P . This study contributes to ongoing investigations of the effects of climate change on vegetation activity. It is also of great importance for designing forest management strategies to cope with climate change.

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“…Therefore, its variability is important for many ecological processes as well as for human activities in this region. The normalized difference vegetation index (NVDI) is found highly correlated with precipitation variations in the grassland with medium vegetation cover (Ding et al 2007), Precipitation gradually decreases from southeast to northwest, from approximately 700 mm to less than 50 mm annually (Liu and Yin 2002). Correspondingly, the vegetation cover also varies from forest in the southeast to desert in the northwest.…”

Section: Precipitationmentioning

confidence: 98%

Recent land cover changes on the Tibetan Plateau: a review

2009

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This paper reviews the land cover changes on the Tibetan Plateau during the last 50 years partly caused by natural climate change and, more importantly, influenced by human activities. Recent warming trends on the plateau directly influence the permafrost and snow melting and will impact on the local ecosystem greatly. Human activities increased rapidly on the plateau during the last half century and have significant impacts on land use. Significant land cover changes on the Tibetan Plateau include permafrost and grassland degradation, urbanization, deforestation and desertification. These changes not only impact on local climate and environment, but also have important hydrological implications for the rivers which originate from the plateau. The most noticeable disasters include the flooding at the upper reaches of Yangtze River and droughts along the middle and lower reaches of Yellow River. Future possible land cover changes under future global climate warming are important but hard to assess due to the deficits of global climate model in this topographically complex area. Integrated investigation of climate and ecosystems, including human-beings, are highly recommended for future studies.

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The relationship between NDVI and precipitation on the Tibetan Plateau

Cited by 150 publications

References 9 publications

The response of vegetation dynamics of the different alpine grassland types to temperature and precipitation on the Tibetan Plateau

The response of vegetation dynamics of the different alpine grassland types to temperature and precipitation on the Tibetan Plateau

Notable shifting in the responses of vegetation activity to climate change in China

Recent land cover changes on the Tibetan Plateau: a review

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