黄土高原泾河流域长时间序列的归一化植被指数动态变化及其驱动因素分析

doi:10.3724/SP.J.1258.2012.00511

摘要/Abstract

摘要：

泾河流域土地开发历史悠久, 是黄土高原水土流失的典型区域。研究气候变化和人类活动影响下泾河流域的植被覆盖变化及其原因, 对黄土高原的植被恢复、水土保持和景观管理等都具有重要意义。该研究应用GIMMS归一化植被指数NDVI、土地覆盖分类数据和气候数据, 采用趋势分析和相关分析方法, 研究了泾河流域1982-2005年植被覆盖变化趋势及其驱动因素。研究表明: 泾河流域24年间79.64%的区域NDVI无显著变化趋势, NDVI趋势显著增加的区域占16.33%, 主要集中在流域中部和南部, NDVI趋势显著减小的区域占4.03%, 主要集中在流域北部。流域所有气象站点的降水量均无显著变化趋势, 气温均呈显著升高趋势。分析发现气候变化不能很好地解释NDVI趋势的空间分异, 人为因素更为重要。从土地利用分析结果来看, NDVI不同趋势下各土地利用类型比例无明显变化, 但NDVI显著增加区以耕地为主, 显著减小区以草地为主, 由此推断NDVI的显著增加趋势主要由耕地NDVI增加引起, 显著减小趋势可能与林地减少和草地退化有关。通过分析不同分区的土地利用数据和社会经济资料, 着重探讨了造成植被覆盖显著变化趋势的人为因素。

关键词: 气候, 土地利用, 泾河流域, 归一化植被指数(NDVI), 趋势分析, 植被覆盖

Abstract:

Aims As a typical region of soil erosion on the Loess Plateau, the Jinghe River watershed has had long-term land exploitation and soil erosion. Our objective was to study trends in the change of vegetation cover and to explore driving factors, including both climatic and anthropogenic aspects.
Methods We calculated normalized difference vegetation index (NDVI) trends using GIMMS NDVI data from 1982 to 2005 in the Jinghe River watershed. Its trends were compared with precipitation and air temperature trends calculated from climate data from the 19 meteorological stations in the watershed. A 3 × 3 pixel buffer area centered on each station was used to analyze relationships between climate and vegetation. Anthropogenic factors were represented by land use data obtained from the Resource-Environment Database of the Chinese Academy of Sciences. We analyzed the proportion of each land type in areas of different NDVI trends to illustrate the effects of human activities.
Important findings NDVI had no significant trends in 79.64% of the Jinghe River watershed in the 24-year period. NDVI had significant positive trends in 16.33% of the area, located in the middle and southern parts of the watershed. NDVI had significant negative trends in 4.03% of the area, located in the northern part of the watershed. Precipitation had no significant trends, and temperature had significant positive trends forall of the 19 weather stations. The spatial differences of NDVI trends could not explained by changes in precipitation and air temperature. The anthropogenic factors seemed more important. Land use analysis indicated that the percentages of land use types in areas of different NDVI trends changed little. Plantation was dominant in the area where NDVI had significant positive trends, and grassland was dominant in the area where NDVI had significant negative trends. Results suggest that the changes in plantations resulted in the significant positive trends of NDVI, and woodland loss and grassland degeneration resulted in the significant negative trends of NDVI.

Key words: climate, land use, Jinghe River watershed, normalized difference vegetation index (NDVI), trend analysis, vegetation cover

孙晓鹏, 王天明, 寇晓军, 葛剑平. 黄土高原泾河流域长时间序列的归一化植被指数动态变化及其驱动因素分析. 植物生态学报, 2012, 36(6): 511-521. DOI: 10.3724/SP.J.1258.2012.00511

SUN Xiao-Peng, WANG Tian-Ming, KOU Xiao-Jun, GE Jian-Ping. Normalized difference vegetation index dynamic change and its driving factor analysis with long time series in the Jinghe River watershed on the Loess Plateau of China. Chinese Journal of Plant Ecology, 2012, 36(6): 511-521. DOI: 10.3724/SP.J.1258.2012.00511

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链接本文: https://www.plant-ecology.com/CN/10.3724/SP.J.1258.2012.00511

https://www.plant-ecology.com/CN/Y2012/V36/I6/511

图/表 6

图1 泾河流域位置及主要植被分布(据中国科学院中国植被图编辑委员会, 2001)。

Fig. 1 The location and vegetation distribution of Jinghe River watershed (According to the Editorial Board of Vegetation Map of China, Chinese Academy of Sciences, 2001).

图2 泾河流域1982-2005年归一化植被指数(NDVI)趋势分析(A)及显著性检验(B)。

Fig. 2 Trend analysis (A) and significant test (B) of normalized difference vegetation index (NDVI) in Jinghe River watershed from 1982 to 2005.

图3 泾河流域气象站点1982-2005年降水量(A)和气温(B)趋势。

Fig. 3 Precipitation (A) and air temperature (B) trends of meteorological stations in Jinghe River watershed from 1982 to 2005.

表1 泾河流域站点缓冲区趋势分析

Table 1 Trend analysis of the station buffer area in Jinghe River watershed

站点编号 Station code	站点名称 Station name	NDVI趋势 NDVI trend	降水趋势 P trend	气温趋势 T trend	相关系数 Correlation coefficient
站点编号 Station code	站点名称 Station name	NDVI趋势 NDVI trend	降水趋势 P trend	气温趋势 T trend	r_NDVI_-_P	r_NDVI_-_T
53821	环县 Huanxian	-	+	+^**	0.6205^*	-0.3899
53829	庆阳 Qingyang	+	-	+^**	0.3764	-0.1807
53915	平凉 Pingliang	+	+	+^**	0.4417^*	0.0050
53923	西峰 Xifeng	+	+	+^**	0.3545	-0.1672
53924	灵台 Lingtai	+^*	-	+^**	0.4631^*	0.2400
53925	镇原 Zhenyuan	+	+	+^**	0.3725	-0.0002
53926	泾川 Jingchuan	+^**	-	+^*	0.4512^*	0.0367
53927	华亭 Huating	-	-	+^**	0.3920	-0.4566^*
53928	崇信 Chongxin	+	+	+^**	0.5196^*	0.0073
53929	长武 Changwu	+	-	+^**	0.4392^*	-0.1045
53930	华池 Huachi	-	+	+^**	0.3514	-0.4181^*
53934	合水 Heshui	+	+	+^**	0.4352^*	0.0788
53935	正宁 Zhengning	+	-	+^**	-0.0156	0.2346
53937	宁县 Ningxian	+^*	-	+^**	0.4052^*	0.2305
53938	旬邑 Xunyi	+^**	-	+^*	0.1580	0.1565
57023	彬县 Binxian	+	-	+^**	0.3563	0.0356
57029	礼泉 Liquan	+	-	+^**	0.2643	0.0235
57030	永寿 Yongshou	+^**	-	+^**	0.0117	0.3140
57033	泾阳 Jingyang	-	-	+^**	0.1206	-0.2314

表2 归一化植被指数(NDVI)趋势不显著、显著增加、显著减小区土地利用类型变化

Table 2 Changes of the land use types in no trend area, positive area and negative area of normalized diference vegetation index (NDVI)

图4 泾河流域1990-2005年粮食单位面积产量和复种指数的变化(据耿艳辉等, 2008)。

Fig. 4 Changes of grain yield per unit area and multiple crop index in Jinghe River watershed from 1990 to 2005 (According to Geng et al., 2008).

参考文献 55

[1]	Alves Senna MC, Costa MH, Chipponelli Pinto LI, Acioli Imbuzeiro HM, Freitas Diniz LM, Pires GF (2009). Challenges to reproduce vegetation structure and dynamics in amazonia using a coupled climate-biosphere model. Earth Interactions, 13(11), 1-28.
[2]	Anderson RG, Goulden ML (2011). Relationships between climate, vegetation, and energy exchange across a montane gradient. Journal of Geophysical Research- Biogeosciences, 116, G01026.
[3]	Anyamba A, Tucker CJ (2005). Analysis of Sahelian vegetation dynamics using NOAA-AVHRR NDVI data from 1981-2003. Journal of Arid Environments, 63, 596-614. DOI URL
[4]	Betts RA, Cox PM, Lee SE, Woodward FI (1997). Contrasting physiological and structural vegetation feedbacks in climate change simulations. Nature, 387, 796-799.
[5]	Bi XL ( 毕晓丽), Wang H ( 王辉), Zhou R ( 周睿), Hong J ( 洪军), Suo AN ( 索安宁), Ge JP ( 葛剑平) (2006). Analysis on the livestock capability of the Jinghe River basin on the Loess Plateau. Acta Ecologica Sinica (生态学报), 26, 4219-4224. (in Chinese with English abstract)
[6]	Boelman NT, Stieglitz M, Griffin KL, Shaver GR (2005). Inter-annual variability of NDVI in response to long-term warming and fertilization in wet sedge and tussock tundra. Oecologia, 143, 588-597. DOI URL PMID
[7]	Chen CC ( 陈操操), Xie GD ( 谢高地), Zhen L ( 甄霖), Geng YH ( 耿艳辉), Leng YF ( 冷允法) (2008). Analysis on Jinghe watershed vegetation dynamics and evaluation on its relation with precipitation. Acta Ecologica Sinica (生态学报), 28, 925-938. (in Chinese with English abstract) DOI URL
[8]	Chi HK ( 池宏康) (1995). A study on the model for estimation winter wheat yield using spectral data of wheat field. Acta Phytoecologica Sinica (植物生态学报), 19, 337-344. (in Chinese with English abstract)
[9]	Cramer W, Bondeau A, Woodward FI, Prentice IC, Betts RA, Brovkin V, Cox PM, Fisher V, Foley JA, Friend AD, Kucharik C, Lomas MR, Ramankutty N, Sitch S, Smith B, White A, Young-Molling C (2001). Global response of terrestrial ecosystem structure and function to CO₂ and climate change: results from six dynamic global vegetation models. Global Change Biology, 7, 357-373.
[10]	Diodato N, Bellocchi G (2008). Modelling vegetation greenness responses to climate variability in a mediterranean terrestrial ecosystem. Environmental Monitoring and Assessment, 143, 147-159. URL PMID
[11]	Duchemin B, Guyon D, Lagouarde JP (1999). Potential and limits of NOAA-AVHRR temporal composite data for phenology and water stress monitoring of temperate forest ecosystems. International Journal of Remote Sensing, 20, 895-917.
[12]	Editorial Board of Vegetation Map of China, Chinese Academy of Sciences (中国科学院中国植被图编辑委员会) (2001). 1: 1000000 Vegetation Atlas of China (1: 1000000中国植被图集). Science Press, Beijing. (in Chinese)
[13]	Esteban-Parra MJ, Rodrigo FS, Castro-Diez Y (1998). Spatial and temporal patterns of precipitation in spain for the period 1880-1992. International Journal of Climatology, 18, 1557-1574.
[14]	Evans J, Geerken R (2004). Discrimination between climate and human-induced dryland degradation. Journal of Arid Environments, 57, 535-554. DOI URL
[15]	Fuller DO (1998). Trends in NDVI time series and their relation to rangeland and crop production in Senegal, 1987-1993. International Journal of Remote Sensing, 19, 2013-2018. DOI URL
[16]	Geng CX ( 耿春香), Zhang XX ( 张秀霞) (2003). Affecting factors analyze for ecological environment of oil field exploit in the Northwest. Environmental Protection Science (环境保护科学), 29, 40-41. (in Chinese with English abstract)
[17]	Geng YH ( 耿艳辉), Min QW ( 闵庆文), Cheng SK ( 成升魁), Chen CC ( 陈操操) (2008). Temporal and spatial distribu- tion of cropland-population-grain system and pressure index on cropland in Jinghe watershed. Transactions of the Chinese Society of Agricultural Engineering (农业工程学报), 24(10), 68-73. (in Chinese with English abstract)
[18]	Goward SN, Waring RH, Dye DG, Yang JL (1994). Ecological remote sensing at OTTER: satellite macroscale observa- tions. Ecological Applications, 4, 322-343. DOI URL
[19]	Guo ZH ( 郭志华), Peng SL ( 彭少麟), Wang BS ( 王伯荪), Zhang Z ( 张征) (1999). Estimation of radiation absorption by Guangdong vegetation using GIS and RS. Acta Ecologica Sinica (生态学报), 19, 441-447. (in Chinese with English abstract)
[20]	Holben BN (1986). Characteristics of maximum-value composite images from temporal AVHRR data. Interna- tional Journal of Remote Sensing, 7, 1417-1434.
[21]	Jeong SJ, Ho CH, Park TW, Kim J, Levis S (2011). Impact of vegetation feedback on the temperature and its diurnal range over the Northern Hemisphere during summer in a 2 × CO₂ climate. Climate Dynamics, 37, 821-833. DOI URL
[22]	Jiang D ( 江东), Wang NB ( 王乃斌), Yang XH ( 杨小唤), Liu HH ( 刘红辉) (2002). Principles of the interaction between NDVI profile and the growing situation of crops. Acta Ecologica Sinica (生态学报), 22, 247-253. (in Chinese with English abstract)
[23]	Jobbagy EG, Sala OE, Paruelo JM (2002). Patterns and controls of primary production in the patagonian steppe: a remote sensing approach: regional ecological analysis. Ecology, 83, 307-319.
[24]	Kepner WG, Rubio JL, Mouat DA, Pedrazzini F (2006). Desertification in the Mediterranean Region: a Security Issue. Springer, Dordrecht, The Netherlands. 614.
[25]	Law BE, Waring RH (1994). Remote-sensing of leaf area index and radiation intercepted by understory vegetation. Ecological Applications, 4, 272-279. DOI URL
[26]	Li BG ( 李本纲), Tao S ( 陶澍) (2000). Correlation between AVHRR NDVI and climate factors. Acta Ecologica Sinica (生态学报), 20, 898-902. (in Chinese with English abstract)
[27]	Liu JY, Zhang ZX, Xu XL, Kuang WH, Zhou WC, Zhang SW, Li RD, Yan CZ, Yu DS, Wu SX, Nan J (2010). Spatial patterns and driving forces of land use change in China during the early 21st century. Journal of Geographical Sciences, 20, 483-494. DOI URL
[28]	Liu XC, Xu ZX, Yu RH (2011). Trend of climate variability in China during the past decades. Climatic Change, 109, 503-516. DOI URL
[29]	Lucht W, Prentice IC, Myneni RB, Sitch S, Friedlingstein P, Cramer W, Bousquet P, Buermann W, Smith B (2002). Climatic control of the high-latitude vegetation greening trend and pinatubo effect. Science, 296, 1687-1689. URL PMID
[30]	Ma MG ( 马明国), Wang J ( 王建), Wang XM ( 王雪梅) (2006). Advance in the inter-annual variability of vegetation and its relation to climate based on remote sensing. Journal of Remote Sensing (遥感学报), 10, 421-431. (in Chinese with English abstract) DOI URL
[31]	Milich L, Weiss E (2000). GAC NDVI images: relationship to rainfall and potential evaporation in the grazing lands of the gourma (northern Sahel) and in the croplands of the Niger-Nigeria border (southern Sahel). International Journal of Remote Sensing, 21, 261-280.
[32]	Monteith JL (1981). Climatic variation and the growth of crops. Quarterly Journal of the Royal Meteorological Society, 107, 749-774. DOI URL
[33]	Morawitz DF, Blewett TM, Cohen A, Alberti M (2006). Using NDVI to assess vegetative land cover change in central Puget Sound. Environmental Monitoring and Assessment, 114, 85-106. URL PMID
[34]	Nemani RR, Keeling CD, Hashimoto H, Jolly WM, Piper SC, Tucker CJ, Myneni RB, Running SW (2003). Climate- driven increases in global terrestrial net primary production from 1982 to 1999. Science, 300, 1560-1563. URL PMID
[35]	Ostwald M, Chen DL (2006). Land-use change: impacts of climate variations and policies among small-scale farmers in the Loess Plateau, China. Land Use Policy, 23, 361-371. DOI URL
[36]	Piao SL, Fang JY, Ji W, Guo QH, Ke JH, Tao S, Woods K (2004). Variation in a satellite-based vegetation index in relation to climate in China. Journal of Vegetation Science, 15, 219-226.
[37]	Qi Q ( 齐清), Wang TM ( 王天明), Kou XJ ( 寇晓军), Ge JP ( 葛剑平) (2009). Temporal and spatial changes of vegetation cover and the relationship with precipitation in Jinghe Watershed of China. Chinese Journal of Plant Ecology (植物生态学报), 33, 246-253. (in Chinese with English abstract)
[38]	Slayback DA, Pinzon JE, Los SO, Tucker CJ (2003). Northern hemisphere photosynthetic trends 1982-99. Global Change Biology, 9, 1-15. DOI URL
[39]	Sun XZ ( 孙新章), Xie GD ( 谢高地), Zhen L ( 甄霖) (2007). Effects of converting arable land into forest (grassland) and eco-compensation: a case study in Yuanzhou County, Guyuan City of Ningxia Hui Autonomous Region. Resources Science (资源科学), 29(2), 194-200. (in Chinese with English abstract)
[40]	Suo AN ( 索安宁), Zhao WZ ( 赵文喆), Wang TM ( 王天明), Yuan F ( 袁飞), Xiong Y ( 熊颖), Ge JP ( 葛剑平) (2007). Spatial-temporal succession characteristics of soil and water loss in the central Loess Plateau during the last 50 years. Journal of Beijing Forestry University (北京林业大学学报), 29(1), 90-97. (in Chinese with English abstract)
[41]	Tottrup C, Rasmussen MS (2004). Mapping long-term changes in savannah crop productivity in Senegal through trend analysis of time series of remote sensing data. Agriculture, Ecosystems and Environment, 103, 545-560.
[42]	Verburg PH (2006). Simulating feedbacks in land use and land cover change models. Landscape Ecology, 21, 1171-1183. DOI URL
[43]	Vermote E, Saleoup NE, Kaufman YJ, Duttonc E (1997). Data pre-processing: stratospheric aerosol perturbing effect on the remote sensing of vegetation: correction method for the composite NDVI after the pinatubo eruption. Remote Sensing Reviews, 15, 7-21. DOI URL
[44]	Vermote EF, Saleous NE (1995). Stratospheric aerosol perturb- ing effect on the remote sensing of vegetation: operational method for the correction of AVHRR composite NDVI. Atmospheric Sensing and Modelling, 2311, 19-29.
[45]	Wang CY ( 王长耀), Luo CF ( 骆成凤), Qi SH ( 齐述华), Niu Z ( 牛铮) (2005). A method of land cover classification for China based on NDVI-Ts space. Journal of Remote Sensing (遥感学报), 9, 93-99. (in Chinese with English abstract)
[46]	Wang TY ( 王天永) (1993). Potential danger and prevention countermeasures of soil erosion in Liupanshan and Ziwuling woodland. Soil and Water Conservation in China (中国水土保持), 7, 46-48. (in Chinese)
[47]	Wessels KJ, Prince SD, Malherbe J, Small J, Frost PE, VanZyl D (2007). Can human-induced land degradation be distinguished from the effects of rainfall variability? A case study in South Africa. Journal of Arid Environments, 68, 271-297.
[48]	Wessels KJ, Prince SD, Zambatis N, MacFadyen S, Frost PE, VanZyl D (2006). Relationship between herbaceous biomass and 1-km ² Advanced Very High Resolution Radiometer (AVHRR) NDVI in Kruger National Park, South Africa. International Journal of Remote Sensing, 27, 951-973. DOI URL
[49]	Xie GD ( 谢高地), Zhen L ( 甄霖), Chen CC ( 陈操操), Yang L ( 杨丽) (2007). The changes and their interactions of precipitation-landscape-runoff in Jinghe Watershed. Resources Science (资源科学), 29(2), 156-163. (in Chinese with English abstract)
[50]	Xie GD ( 谢高地), Zhen L ( 甄霖), Yang L ( 杨丽), Guo GM ( 郭广猛) (2005). Landscape stability and its pattern transition in Jinghe Watershed. Chinese Journal of Applied Ecology (应用生态学报), 16, 1693-1698. (in Chinese with English abstract) URL PMID
[51]	Xin ZB ( 信忠保), Xu JX ( 许炯心) (2007). Response of spatio-temporal variation of vegetation cover to climate change in Loess Plateau. Progress in Natural Science (自然科学进展), 17, 770-778. (in Chinese)
[52]	Xin ZB ( 信忠保), Xu JX ( 许炯心), Zheng W ( 郑伟) (2007). Effect of climate change and human activities on the vegetation cover in Loess Plateau. Science in China (Series D: Earth Sciences) (中国科学(D辑: 地球科学)), 37, 1504-1514. (in Chinese)
[53]	Yang L ( 杨丽), Xie GD ( 谢高地), Zhen L ( 甄霖), Leng YF ( 冷允法), Guo GM ( 郭广猛) (2005). Spatio-temporal changes of land use in Jinghe Watershed. Resources Science (资源科学), 27(4), 26-32. (in Chinese with English abstract)
[54]	Zhen L ( 甄霖), Xie GD ( 谢高地), Yang L ( 杨丽), Chen CC ( 陈操操), Guo GM ( 郭广猛), Liu XL ( 刘雪林) (2007a). Interactions between human activities and landuse patterns, and conflicts at the village level of Jinghe Watershed. Resources Science (资源科学), 29(2), 201-207. (in Chinese with English abstract)
[55]	Zhen L ( 甄霖), Xie GD ( 谢高地), Yang L ( 杨丽), Cheng SK ( 成升魁) (2007b). Challenges facing landscape manage- ment in the Jinghe Watershed of northwestern China by using participatory rural appraisal. China Population Resources and Environment (中国人口·资源与环境), 17(3), 129-133. (in Chinese with English abstract)

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