NDVI-indicated long-term vegetation dynamics in Mongolia and their response to climate change at biome scale

被引:69
|
作者
Bao, Gang [1 ,2 ]
Bao, Yuhai [1 ]
Sanjjava, Amarjargal [3 ]
Qin, Zhihao [2 ,4 ]
Zhou, Yi [2 ]
Xu, Guang [5 ,6 ]
机构
[1] Inner Mongolia Normal Univ, Inner Mongolia Key Lab Remote Sensing & Geog Info, Hohhot, Peoples R China
[2] Nanjing Univ, Int Inst Earth Syst Sci, Nanjing, Jiangsu, Peoples R China
[3] Mongolian Acad Sci, Inst Geog, Ulaanbaatar, Mongolia
[4] Chinese Acad Agr Sci, Inst Agroresources & Reg Planning, Beijing 100193, Peoples R China
[5] Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing, Peoples R China
[6] Univ Chinese Acad Sci, Beijing, Peoples R China
基金
中国国家自然科学基金;
关键词
climate change; vegetation dynamics; NDVI; Mongolia; biome scale; NET PRIMARY PRODUCTION; TIME-SERIES; NORTHERN CHINA; TREND ANALYSIS; INDEX; TEMPERATURE; MODIS; GROWTH; AVHRR; VARIABLES;
D O I
10.1002/joc.4286
中图分类号
P4 [大气科学(气象学)];
学科分类号
0706 ; 070601 ;
摘要
Based on the vegetation map of Mongolia, Global Inventory Monitoring and Modelling Studies (GIMMS) normalized difference vegetation index (NDVI) (1982-2006), the Moderate Resolution Imaging Spectroradiometer (MODIS) NDVI (2000-2010), and temperature and precipitation data derived from 60 meteorological stations, this study has thoroughly examined vegetation dynamics in Mongolia and their responses to regional climate change at biome scale. To ensure continuity and consistency between the two NDVI datasets, the MODIS NDVI was first calibrated to the GIMMS NDVI based on the overlapping period of 2000-2006. Good calibration results with R-2 values of 0.86-0.98 between the two NDVI datasets were obtained and can detect subtle trends in the long-term vegetation dynamics of Mongolia. The results indicated that for various biomes, although NDVI changes during 1982-2010 showed great variation, vegetation greening for all biomes in Mongolia seem to have stalled or even decreased since 1991-1994, particularly for meadow steppe (0.0015 year(-1)), typical steppe (-0.0010 year(-1)), and desert steppe (-0.0008 year(-1)), which is an apparent turning point (TP) of the vegetation growth trend in Mongolia. A pronounced drying trend (from -4.399 mm year(-1) in meadow steppe since 1990 to -2.445 mm year(-1) in alpine steppe since 1993) occurred between 1990 and 1994, and persistently warming temperatures (0.015 degrees C year(-1) in alpine steppe to 0.070 degrees C year(-1) in forest and meadow steppe) until recently have likely played a major role in this NDVI trend reversal. However, the NDVI TP varied by biome, month, and climate and was not coupled exactly with climatic variables. The impact on climate of both same-time and lagged-time temperature and precipitation effects also varied strongly across biomes and months. On the whole, climate-related vegetation decline and associated potential desertification trends will likely be among the major sources of ecological pressure for each biome in Mongolia, which could intensify environmental problems like sandstorms in other East Asian regions.
引用
收藏
页码:4293 / 4306
页数:14
相关论文
共 50 条
  • [1] Global patterns of NDVI-indicated vegetation extremes and their sensitivity to climate extremes
    Liu, Guo
    Liu, Hongyan
    Yin, Yi
    [J]. ENVIRONMENTAL RESEARCH LETTERS, 2013, 8 (02):
  • [2] NDVI-Based Vegetation Change in Inner Mongolia from 1982 to 2006 and Its Relationship to Climate at the Biome Scale
    Guo, Linghui
    Wu, Shaohong
    Zhao, Dongsheng
    Yin, Yunhe
    Leng, Guoyong
    Zhang, Qingyu
    [J]. ADVANCES IN METEOROLOGY, 2014, 2014
  • [3] Vegetation Dynamics and Phenological Shifts in Long-term NDVI Time Series in Inner Mongolia, China
    Gong, Zhe
    Kawamura, Kensuke
    Ishikawa, Naoto
    Goto, Masakazu
    Tuya, Wulan
    Alateng, Dalai
    Yin, Ting
    Ito, Yutaka
    [J]. JARQ-JAPAN AGRICULTURAL RESEARCH QUARTERLY, 2020, 54 (01): : 101 - 112
  • [4] NDVI-Based Long-Term Vegetation Dynamics and Its Response to Climatic Change in the Mongolian Plateau
    Bao, Gang
    Qin, Zhihao
    Bao, Yuhai
    Zhou, Yi
    Li, Wenjuan
    Sanjjav, Amarjargal
    [J]. REMOTE SENSING, 2014, 6 (09) : 8337 - 8358
  • [5] Long-term effects of climate change on vegetation and carbon dynamics in peat bogs
    Heijmans, Monique M. P. D.
    Mauquoy, Dmitri
    van Geel, Bas
    Berendse, Frank
    [J]. JOURNAL OF VEGETATION SCIENCE, 2008, 19 (03) : 307 - U54
  • [6] RECONSTRUCTION OF TREE-LINE VEGETATION RESPONSE TO LONG-TERM CLIMATE CHANGE
    PAYETTE, S
    FILION, L
    DELWAIDE, A
    BEGIN, C
    [J]. NATURE, 1989, 341 (6241) : 429 - 431
  • [7] Long-Term Dynamics and Response to Climate Change of Different Vegetation Types Using GIMMS NDVI3g Data over Amathole District in South Africa
    Afuye, Gbenga Abayomi
    Kalumba, Ahmed Mukalazi
    Ishola, Kazeem Abiodun
    Orimoloye, Israel Ropo
    [J]. ATMOSPHERE, 2022, 13 (04)
  • [8] Using AVHRR lunar observations for NDVI long-term climate change detection
    Cao, Changyong
    Vermote, Eric
    Xiong, Xiaoxiong
    [J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2009, 114
  • [9] Long-term vegetation trends and driving factors of NDVI change on the slopes of Mount Kilimanjaro
    Khalefa, Ehsan
    Pepin, Nicholas
    Teeuw, Richard
    [J]. International Journal of Environmental Studies, 2024,
  • [10] Long-term change in storm hydrographs in response to peatland vegetation change
    Grayson, R.
    Holden, J.
    Rose, R.
    [J]. JOURNAL OF HYDROLOGY, 2010, 389 (3-4) : 336 - 343