Analysis on the Change of Vegetation Growth in Junggar Basin during 1982-2013

doi:10.13466/j.cnki.lyzygl.2016.05.008

Abstract

Abstract: Junggar basin is located in the northern part of Xinjiang,China.It is the second largest inland basin in China.It is necessary to understand the vegetation trends and responses to climatic change and human activities in recent decades,so as to better understand the vegetation states and trends and to make more reasonable desertification control strategy.The long time series GIMMS NDVI data from 1982 to 2013 were used to analyze the changes of vegetation.And the CRU climate datasets,including temperature,precipitation and cloud cover from 1982 to 2013 were used to analyze the influence of climatic factors on NDVI in Junggar basin.Results show that:33.03% of Junggar basin shows vegetation degradation,and about 20% of the area shows vegetation restoration.The area of vegetation degradation is mainly distributed in the arid area,where the vegetation cover is sparse.The area of vegetation restoration is mainly located in the vegetation dense area.During the past 32 years,temperatures increased significantly in Junggar Basin,which increased the water evaporation in the ardi regions while the rainfall is relative stable,so that the drought area becomes more droughty and the NDVI decreased because of the drought.While in the semi-humid region of Junggar basin,the increased temperature in recent 32 years promotes the growth of vegetation.Human activities in the past 32 years didn't impose significant influence on the vegetation growth in Junggar basin,indicating that the land desertification control needs a longer period and we should continue to strengthen the monitoring of the regional desertification state and process.

Key words: Junggar basin, NDVI, climate change, vegetation dynamic monitoring

CLC Number:

Q948

DIAO Mingjun, XIA Chaozong. Analysis on the Change of Vegetation Growth in Junggar Basin during 1982-2013[J]. FOREST RESOURCES WANAGEMENT, 2016, (5): 39-46.

References

[1] IPCC.Summary for policymakers[R]//Solomon S,Qin D,Manning Z,et al.Climate Change 2007:The Physical Science Basis.Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change.Cambridge:Cambridge University Press,2007:5.
[2] Melillo J M,McGuire A D,Kicklighter D W,et al.Global climate change and terrestrial net primary production[J].Nature,1993,363(6426):234-240.
[3] Herrmann S M,Anyambab A,Tucker C J.Recent trends in vegetation dynamics in the African Sahel and their relationship to climate[J].Glob.Environ.Change,2005,15:394-404.
[4] Huxman T E,Smith S D.Photosynthesis in an invasive grass and native forb at elevated CO₂ during an El Nino year in the Mojave Desert[J].Oecologia,2001,128:193-201.
[5] Whitford W.Ecology of Desert Systems[M].London :demic Press,2002:43.
[6] Lioubimtseva E.Climate change in arid environments:revisiting the past to understand the future[J].Phys.Geogr.,2004,28:502-530.
[7] Jarlan L,Tourre Y,Mougin E,et al.Dominant patterns of AVHRR NDVI interannual variability over the Sahel and linkages with key climate signals(1982-2003)[J].Geophys.Res.Lett.,2005,32:104-107.
[8] Donohue R J,Timr M,Roderick M L.Climate-related trends in Australian vegetation cover as inferred from satellite observations,1981-2006[J].Glob.Change Biol.,2009,15:1025-1039.
[9] Yi Yin,Hongyan Liu,Guo Liu,et al.Vegetation responses to mid-Holocene extreme drought events and subsequent long-term drought on the southeastern Inner Mongolian Plateau[J].China,Agric.For.Meteorol.2013,178:3-9;2013,179:3-9.
[10] Poultera B,Pederson N,Hongyan Liu,et al.Recent trends in inner Asian forest dynamics to temperature and precipitation indicate high sensitivity to climate change[J].China,Agric.For.Meteorol.2013,178,32-35;2013,179:32-35.
[11] Chase T N,Pielke Sr R A,Knaff J A,et al.A comparison of regional trends in 1979-1997 depth-averaged tropospheric temperatures[J].International Journal of Climatology,2000,20(5):503-518.
[12] Rouse,J.W.,Haas,R.H.,Schell,J.A,et al.Monitoring vegetation sys-tems in the great plains with ERTS[M]//Third Earth Resources Technology Satellite-1 Symposium-Volume I:Technical Presentations.NASA SP-351,1974:09.
[13] Baret,F.& G.Guyot.Potentials and limits of vegetation indices for LAI and APAR assessment[J].Remote Sensing of the Environment,1991,35:161-173.
[14] Bunn A G,Goetz S J.Trends in satellite-observed circumpolar photosynthetic activity from 1982 to 2003:the influence of seasonality,cover type,and vegetation density[J].Earth Interactions,2006,10(12):1-19.
[15] Nemanill R R.Increased plant growth in the northern high latitudes from 1981 to 1991[J].Nature,1997,386(6626):698-702.
[16] Nemani R R,Keeling C D,Hashimoto H,et al.Climate-driven increases in global terrestrial net primary production from 1982 to 1999[J].science,2003,300(5625):1560-1563.
[17] Zhou L,Tucker C J,Kaufmann R K,et al.Variations in northern vegetation activity inferred from satellite data of vegetation index during 1981 to 1999[J].Journal of Geophysical Research:Atmospheres,2001,106(D17):20069-20083.
[18] Ichii,K.,Kondo,M.,Okabe,Y.,et al.Recent changes in terrestrial gross primary productivity in Asia from 1982 to 2011[J].Remote Sensing of Environment,2013,5:6043-6062.2013.
[19] Haijing Tian,Chunxiang Cao,Wei Chen,et al.Response of vegetation activity dynamic to climatic change and ecological restoration programs in Inner Mongolia from 2000 to 2012[J].Ecological Engineering,2015,82:276-289.
[20] Zhitao Wu,Jianjun Wu,Jinghui Liu,et al.Increasing terrestrial vegetation activity of ecological restoration program in the Beijing-Tianjin sand source region of China[J].Ecological Engineering,2013,52:37-50.
[21] 殷贺,李正国,王仰麟,等.基于时间序列植被特征的内蒙古荒漠化评价[J].地理学报,2011,66(5):653-661.
[22] 蔡博峰,于嵘.基于遥感的植被长时序趋势特征研究进展及评价 [J].遥感学报,2009(6):1170-1186.
[23] 滑永春.基于MODIS京津风沙源工程治理区植被变化监测[D].北京:北京林业大学,2010.
[24] 刘巽浩.大西北种树种草要遵循自然与经济规律[J].中国农业资源与区划,2000,21(2):8-10.