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Acta Geographica Sinica >

2011 , Vol. 66 >Issue 1: 47 - 58

DOI: https://doi.org/10.11821/xb201101005

Responses of Vegetation Changes to Climatic Variations in Hulun Buir Grassland in Past 30 Years

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  • 1. Hulun Buir Grassland Ecosystem Observation and Research Station, Beijing 100081, China;
    2. Ministry of Agriculture Key Laboratory of Resource Remote Sensing and Digital Agriculture, Beijing 100081, China;
    3. Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China;
    4. Graduate University of Chinese Academy of Sciences, Beijing 100049, China

Received date: 2010-07-08

  Revised date: 2010-09-15

  Online published: 2011-01-25

Supported by

Open Project of Hulun Buir Grassland Ecosystem Observation and Research Station, No.2010-10; Open Project of the Ministry of Agriculture Key Laboratory of Resource Remote Sensing and Digital Agriculture, No.RDA0803; No. RDA0903; Basic Research Project of the Ministry of Science and Technology, No.2007FY110300

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Abstract

Global warming, a global concern, has led to significant vegetation changes especially in the past 30 years. The Hulun Buir Grassland in Inner Mongolia, one of the world's three prairies, is undergoing a process of prominent warming and drying. It is necessary to investigate the effects of climatic variations (temperature and precipitation) on vegetation changes for a better understanding of acclimation to climatic change. NDVI (Normalized Difference Vegetation Index), which can reflect characteristics of plant growth, vegetation coverage, biomass, and so on, is used as an indicator in monitoring vegetation changes. GIMMS NDVI from 1981 to 2006 and MODIS NDVI from 2000 to 2009 were adopted and integrated in this study to extract the time series characteristics of vegetation change conditions in Hulun Buir. The responses of vegetation coverage changes to climatic variations from the yearly, seasonal and monthly time scales were analyzed combined with temperature and precipitation data of seven meteorological sites. In the past 30 years, vegetation coverage change was closely correlated with climatic factors, and the correlations were different on different time scales. Annual average of vegetation change was better correlated with precipitation, suggesting that rainfall was the main factor for driving vegetation change. Correlations between seasonal average of vegetation coverage and climatic factors showed that the sensitivity of vegetation growth to hydrothermal condition change was different in different seasons. The sensitivity of vegetation growth to temperature in summer was higher than in the other seasons, while that of vegetation growth to rainfall in both summer and autumn was higher, especially in summer. Correlations between monthly average of vegetation coverage and climatic factors during growing seasons showed that the response of vegetation change to temperature in April and May was stronger, indicating that the temperature effect occurred in the early stage of vegetation growth. Correlations between NDVI of the current month and precipitation of the month before the current month were better from May to August, showing a hysteresis response of vegetation growth to rainfall. Grasses turned green and began to grow in April, and the impacts of temperature on grass growth was obvious, therefore, the increase of NDVI in April might be due to an advanced growing season caused by climatic warming. In summary, relationships between annual variation of monthly vegetation and climatic factors represent temporal rhythm controls of temperature and precipitation on grass growth.

Key words： climatic change; NDVI; temperature; precipitation; Hulun Buir; Inner Mongolia

Cite this article

ZHANG Geli, XU Xingliang, ZHOU Caiping, ZHANG Hongbin, OUYANG Hua . Responses of Vegetation Changes to Climatic Variations in Hulun Buir Grassland in Past 30 Years[J]. Acta Geographica Sinica, 2011 , 66(1) : 47 -58 . DOI: 10.11821/xb201101005

References

[1] IPCC. Climate Change 2007: Synthesis Report. Oslo: Intergovernmental Panel on Climate Change, 2007.



[2] Ding Yihui, Ren Guoyu, Shi Guangyu et al. National assessment report of climate change (I): Climate change in China andits future trend. Advances in Climate Change Research, 2006, 2(1): 3-8. [丁一汇, 任国玉, 石广玉等. 气候变化国家评估报告(I): 中国气候变化的历史和未来趋势. 气候变化研究进展, 2006, 2(1): 3-8.]



[3] Parmesan C, Yohe G. A globally coherent fingerprint of climate change impacts across natural systems. Nature, 2003, 421(6918): 37-42.



[4] Zhou L M, Tucker C J, Kaufmann R K et al. Variations in northern vegetation activity inferred from satellite data ofvegetation index during 1981 to 1999. Journal of Geophysical Research-Atmospheres, 2001, 106(D17): 20069-20083.



[5] Myneni R B, Keeling C D, Tucker C J et al. Increased plant growth in the northern high latitudes from 1981 to 1991.Nature, 1997, 386(6626): 698-702.



[6] Fang Jingyun, Piao Shilong, He Jinsheng et al. Vegetation of China invigorated in last 20 years. Science in China: Series C,2003, 33(6): 554-565. [方精云, 朴世龙, 贺金生等. 近20 年来中国植被活动在增强. 中国科学: C 辑, 2003, 33(6):554-565.]



[7] Li Xia, Li Xiaobing, Wang Hong et al. Impact of climate change on temperate grassland in northern China. Journal ofBeijing Normal University: Natural Science, 2006, 42(6): 618-623. [李霞, 李晓兵, 王宏等. 气候变化对中国北方温带草原植被的影响. 北京师范大学学报: 自然科学版, 2006, 42(6): 618-623.]



[8] Pettorelli N, Vik J O, Mysterud A et al. Using the satellite-derived NDVI to assess ecological responses to environmentalchange. Trends in Ecology & Evolution, 2005, 20(9): 503-510.



[9] Sha Wanying, Shao Xuemei, Huang Mei. The effects of Chinese climate warming on the natural area vordline since 1980s.Science in China: Series D, 2002, 32(4): 317-326. [沙万英, 邵雪梅, 黄玫. 20 世纪80 年代以来中国的气候变暖及其对自然区域界线的影响. 中国科学: D辑, 2002, 32(4): 317-326.]



[10] Luo Ling,Wang Zongming, Song Kaishan et al. Research on the correlation between NDVI and climatic factors ofdifferent vegetations in the Northeast China. Acta Botanica Boreali-Occidentalia Sinica, 2009, (4): 800-808. [罗玲, 王宗明, 宋开山等. 1982-2003 年中国东北地区不同类型植被NDVI 与气候因子的关系研究. 西北植物学报, 2009, (4):800-808.]



[11] Chen Xiaoqiu, Wang Heng. Spatial and temporal variations of vegetation belts and vegetation cover degrees in InnerMongolia from 1982 to 2003. Acta Geographica Sinica, 2009, 64(1): 84-94. [陈效逑, 王恒. 1982-2003 年内蒙古植被带和植被覆盖度的时空变化. 地理学报, 2009, 64(1): 84-94.]



[12] Wu Ruifen, Huo Zhiguo, Cao Yanfang et al. Phenophase change of typical herbaceous plants in Inner Mongolia in springand its response to climate warming. Chinese Journal of Ecology, 2009, 28(8): 1470-1475. [吴瑞芬, 霍治国, 曹艳芳等.内蒙古典型草本植物春季物候变化及其对气候变暖的响应. 生态学杂志, 2009, 28(8): 1470-1475.]



[13] Guo Zhixing, Zhang Xiaoning, Wang Zongming et al. Responses of vegetation phenology in Northeast China to climatechange. Chinese Journal of Ecology, 2010, 29(3): 578-585. [国志兴, 张晓宁, 王宗明等. 东北地区植被物候对气候变化的响应. 生态学杂志, 2010, 29(3): 578-585.]



[14] Chen Xiaoqiu, Zheng Ting. Spatial patterns of aboveground biomass and its climatic attributions in typical steppe of InnerMongolia. Scientia Geographica Sinica, 2008, 28(3): 369-374. [陈效逑, 郑婷. 内蒙古典型草原地上生物量的空间格局及其气候成因分析. 地理科学, 2008, 28(3): 369-374.]



[15] Tucker C J. Red and photographic infrared linear combinations for monitoring vegetation. Remote Sensing ofEnvironment, 1979, 8(2): 127-150.



[16] Cheng Hongfang, Zhang Wenbo, Chen Feng. Advances in researches on application of remote sensing method toestimating vegetation coverage. Remote Sensing for Land & Resources, 2008, (1): 13-18. [程红芳, 章文波, 陈锋. 植被覆盖度遥感估算方法研究进展. 国土资源遥感, 2008, (1): 13-18.]



[17] Sun Yanling, Guo Peng, Yan Xiaodong et al. Dynamics of vegetation cover and its relationship with climate change andhuman activities in Inner Mongolia. Journal of Natural Resources, 2010, 25(3): 407-414. [孙艳玲, 郭鹏, 延晓冬等. 内蒙古植被覆盖变化及其与气候、人类活动的关系. 自然资源学报, 2010, 25(3): 407-414.]



[18] Ma Yuling, Yu Weihong, Fang Xiuqi. Change of grass growth in the Hulun Buir steppe in response to global warming.Arid Land Geography, 2004, 27(1): 29-34. [马玉玲, 余卫红, 方修琦. 呼伦贝尔草原对全球变暖的响应. 干旱区地理,2004, 27(1): 29-34.]



[19] Li Yunpeng, Na Risu, Li Pengtao et al. Remote sensing monitoring of grassland degradation and climate causes in HulunBuir Grassland. Acta Agriculturae Boreali-Sinica, 2006, 21(suppl. 1): 56-61. [李云鹏, 娜日苏, 刘朋涛等. 呼伦贝尔草原退化遥感监测与气候成因. 华北农学报, 2006, 21(增刊1): 56-61.]



[20] Guo Kezhen. Theory and Techniques of Ecological Water Conservancy in Pastoral Area. Hohhot: Inner Mongolia People'sPublishing House, 2004. [郭克贞. 牧区生态水利理论与技术探索. 呼和浩特: 内蒙古人民出版社, 2004.]



[21] Goetz S J, Fiske G J, Bunn A G. Using satellite time-series data sets to analyze fire disturbance and forest recovery acrossCanada. Remote Sensing of Environment, 2006, 101(3): 352-365.



[22] Kobayashi H, Dye D G. Atmospheric conditions for monitoring the long-term vegetation dynamics in the Amazon usingnormalized difference vegetation index. Remote Sensing of Environment, 2005, 97(4): 519-525.



[23] Holben B N. Characteristics of maximum-value composite images from temporal AVHRR data. International Journal ofRemote Sensing, 1986, 7(11): 1417-1434.



[24] Stow D, Petersen A, Hope A et al. Greenness trends of Arctic tundra vegetation in the 1990s: Comparison of two NDVIdata sets from NOAAAVHRR systems. International Journal of Remote Sensing, 2007, 28(21): 4807-4822.



[25] Zhang Hongbin, Yang Guixia, Wu Wenbin et al. Spatiotemporal characteristics of MODIS NDVI in Hulunber Grassland.Chinese Journal of Applied Ecology, 2009, 20(11): 2743-2749. [张宏斌, 杨桂霞, 吴文斌等. 呼伦贝尔草原MODISNDVI的时空变化特征. 应用生态学报, 2009, 20(11): 2743-2749.]



[26] Xin Zhongbao, Xu Jiongxin, Zheng Wei. Response of vegetation cover change to climate change and human activities inLoess Plateau. Science in China: Series D, 2007, 37(11): 1504-1514. [信忠保, 许炯心, 郑伟. 气候变化和人类活动对黄土高原植被覆盖变化的影响. 中国科学: D辑, 2007, 37(11): 1504-1514.]



[27] Xu Jianhua. Mathematical Methods in Contemporary Geography. Beijing: Higher Education Press, 2002. [徐建华. 现代地理学中的数学方法. 北京: 高等教育出版社, 2002.]



[28] Ma Mingguo, Dong Lixin, Wang Xuemei. Study on the dynamically monitoring and simulating the vegetation cover inNorthwest China in the past 21 years. Journal of Glaciology and Geocryology, 2003, 25(2): 232-236. [马明国, 董立新, 王雪梅. 过去21a中国西北植被覆盖动态监测与模拟. 冰川冻土, 2003, 25(2): 232-236.]



[29] Zhao Huiying. Recent 45 years climate climate change and its effects on ecological environment on Hulunbeier sandyland. Chinese Journal of Ecology, 2007, 26(11): 1817-1821. [赵慧颖. 呼伦贝尔沙地45 年来气候变化及其对生态环境的影响. 生态学杂志, 2007, 26(11): 1817-1821.]



[30] Sun Fenghua, Yang Suying, Chen Pengshi. Climatic warming-drying trend in Northeastern China during the last 44 yearsand its effects. Chinese Journal of Ecology, 2005,24(7):751-755. [孙凤华, 杨素英, 陈鹏狮. 东北地区近44 年的气候暖干化趋势分析及可能影响. 生态学杂志, 2005,24(7):751-755.]



[31] Cui Linli, Shi Jun, Yang Yinming et al. Ten-day response of vegetation NDVI to the variations of temperature andprecipitation in eastern China. Acta Geographica Sinica, 2009, 64(7): 850-860. [崔林丽, 史军, 杨引明等. 中国东部植被NDVI对气温和降水的旬响应特征. 地理学报, 2009, 64(7): 850-860.]



[32] Li Xia, Li Xiaobing, Chen Yunhao et al. Temporal responses of vegetation to climate variables in temperate steppe ofnorthern China. Acta Phytoecologica Sinica, 2007, 31(6):1054-1062. [李霞, 李晓兵, 陈云浩等. 中国北方草原植被对气象因子的时滞响应. 植物生态学报, 2007, 31(6):1054-1062.]
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