Chin J Plan Ecolo ›› 2016, Vol. 40 ›› Issue (12): 1245-1256.doi: 10.17521/cjpe.2015.0389

• Research Articles • Previous Articles     Next Articles

Changes in normalized difference vegetation index of deserts and dunes with precipitation in the middle Heihe River Basin

Fang LI1,2, Wen-Zhi ZHAO2,*   

  1. 1Research Institute of Grassland Science, Chinese Academy of Agricultural Sciences, Hohhot 010010, China
    and
    2Institute of Northwestern Eco-environment and Resource, Chinese Academy of Sciences, Linze Inland River Basin Research Station, Chinese Ecosystem Research Network, Lanzhou 730000, China
  • Online:2016-12-30 Published:2016-12-31
  • Contact: Wen-Zhi ZHAO

Abstract: AimsPrecipitation is the major water source for desert ecosystems, with its temporal dynamics significantly driving the changes of ecosystem structure and function in desert regions. The objectives of this study are to evaluate the changes in normalized difference vegetation index (NDVI) with seasonal precipitation and different climate years in two cover types (desert and dune).MethodsBased on the daily rainfall dataset of 2000-2012 in the middle Heihe River Basin in Northwest China and the NDVI extracted from the moderate resolution imaging spectroradiometer (MODIS) images, we performed linear regression analysis to examine the correlation of NDVIINT (accumulated NDVI) with precipitation in two cover types (desert and dune). Two measures of the precipitation are Pc (cool-season precipitation from last September to late February) and Pw (warm-season precipitation in between March and August), while NDVI was characterized with NDVIINT-pys (previous-year during the different climate years (dry: 2001-2003, wet: 2004-2007)) and the different periods of a growing season (i.e. whole growing season from May through September, early growing season in between May and June, and late growing season in between July and September).Important findings We found that: (1) the determinants of growing season NDVIINT and their order were NDVIINT-pys > Pc > Pw for the deserts, while the order was Pw > NDVIINT-pys for the dunes. The determinants and their order of NDVIINT in early growing season were NDVIINT-pys > Pc for the desert, while they were NDVIINT-pys > Pc = Pw for the late growing season. However, for the dunes, NDVIINT of the early and late growing season appeared determined by NDVIINT-pys and Pw, respectively. (2) During the dry and wet periods, precipitation was not a significant factor influencing NDVIINT for the desert and dune. However, significant increases in NDVIINTwere observed at dune under wet condition. With the wet years continued, the length of the wet years become an important determinant of NDVIINT at both cove types, particularly at dune. In addition, it appeared that different changes in NDVI with precipitation existed between the two cover types, but with very similar effects of time-lag. These findings provide useful references for further understanding the mechanisms of NDVI changes with precipitation.

Key words: accumulated normalized difference vegetation index (NDVIINT), precipitation of cold season, precipitation of warm season, dry and wet climate period, lag time, ecohydrology

Fig. 1

The locations of study area."

Table 1

Vegetation and soil characteristics of desert and dune ecosystem located in study area (mean ± SE)"

特征 Characteristics 沙质荒漠 Dune 砾质荒漠 Desert
植被特征
Vegetation properties
灌木盖度 Shrub cover (%) 12.2 ± 2.8 11.2 ± 1.4
草本盖度 Grass cover (%) 17.5 ± 2.1 2.4 ± 0.3
植被高度 Vegetation height (cm) 67 ± 23 19 ± 9
归一化植被指数均值
Average normalized difference vegetation index (NDVI)1)
0.132 ± 0.014 0.075 ± 0.008
物种丰富度 Species richness 18 11
建群种 Dominant species 泡泡刺 Nitraria sphaerocarpa,
沙拐枣 Calligonum mongolicum
红砂 Reaumurta soongorica,
泡泡刺 Nitraria sphaerocarpa
土壤特征
Soil properties
砂粒-粉粒-黏粒 Sandy-silt-clay (0-20 cm) (%) 90-7-32) 73-23-43)
容重 Bulk density (0-20 cm) (g·m-3) 1.57 ± 0.104) 1.63 ± 0.193)
总孔隙度 Pore space (0-20 cm) (%) >39 39 ± 73)
土壤水分 Soil water content5) (0-20 cm)(%) 1.78 ± 0.46 2.10 ± 0.68
土壤水分 Soil water content5) (20-40 cm)(%) 2.09 ± 0.42 2.81 ± 0.62
土壤水分 Soil water content5) (40-60 cm)(%) 2.13 ± 0.60 2.27 ± 0.31
土壤水分 Soil water content5) (60-180 cm)(%) 2.02 ± 2.23 1.79 ± 0.33

Table 2

Major characteristics of precipitation in the study area during the different hydrological years in the study basin"

年份 Years 降水 Precipitation (mm) 气候期 Climate period 年份 Year 降水 Precipitation (mm) 气候期 Climate period
1999 75.8 非干旱或湿润期
No dry or wet period
2008 111.6 非干旱或湿润期
No dry or wet period
2000 118.4 2009 87.3
2001 55.7 干旱期
Dry period
2010 143.5
2002 106.4 2011 188.1
2003 62.5 2012 105.8
2004 134.3 湿润期
Wet period
2013 113.2
2005 116.2 平均值* 109.7
2006 122.2 Mean*
2007 140.2

Fig. 2

Distribution of precipitation in Linze County. “a”, the precipitation data from 1968 to 2000; “b”, the precipitation data from 2001 to 2012."

Table 3

F-statistical analysis of frequency and precipitation of small (<5 mm) and large rainfall (>10 mm) events during 1968-2000 and 2001-2012 in different seasons (spring, summer, fall and winter)"

降水 Precipitation 因素 Factor 自由度 df F p
<5 mm降水 precipitation 发生次数 Frequency 季节 Season 3 18.433 <0.001
时间段 Period of time 1 6.223 0.014
季节×时间段 Season × Period of time 3 3.206 0.025
降水量 Precipitation 季节 Season 3 30.218 <0.001
时间段 Period of time 1 3.305 0.071
季节×时间段 Season × Period of time 3 2.950 0.034
>10 mm降水 precipitation 发生次数 Frequency 季节 Season 3 27.355 <0.001
时间段 Period of time 1 0.477 0.491
季节×时间段 Season × Period of time 3 0.606 0.612
降水量 Precipitation 季节 Season 3 25.799 <0.001
时间段 Period of time 1 0.147 0.702
季节×时间段 Season × Period of time 3 1.150 0.331

Fig. 3

Relationships between the growing season accumulated normalized difference vegetation index (NDVIINT) (early growing season, late growing season) and precipitation during the wet and dry years in dune and desert ecosystems. Triangles, rectangles and circles indicated NDVIINT in dry years (2001-2003), wet years (2004-2007), and normal years (2000, 2008-2012), respectively. R2, Rd2, Rw2 and p, pd, pw indicated the adjusted coefficient of determination and the probability values of significance test at dry and wet climate period (2001-2007), dry years, wet years."

Fig. 4

Changes of precipitation during the wet and dry years at dune and desert."

Fig. 5

Changes of accumulated normalized difference vegetation index (NDVIINT) during the wet and dry years at dune and desert. Triangles, rectangles and circles indicated NDVIINT in dry years (2001-2003), wet years (2004-2007) and no-trend years (2000, 2008-2012), respectively. The number of consecutive wet years is indicated in the quadratic function of the independent variable (x)."

Table 4

Linear regression models for the relationships between the accumulated normalized difference vegetation index (NDVIINT) of the entire- (May to September), early- (May to June), and late-growing-season (July to September) precipitation for different periods of the year at dunes and deserts"

研究区 Sites 线性回归方程 Linear regression formula R2 r2
生长季
Growing season
砾质荒漠 Desert pt = 1.037 + 0.003xc + 0.003xw R2 = 0.46* rc2 = 0.29*; rw2 = 0.17*
沙质荒漠 Dune pt = 1.480 + 0.005xc + 0.007xw R2 = 0.33* rc2 = 0.03; rw2 = 0.29*
早期 Early 砾质荒漠 Desert pt = 0.492 + 0.001xc + 0.001xs R2 = 0.26* rc2 = 0.23*; rs2 = 0.04
沙质荒漠 Dune pt = 0.734 + 0.001xc + 0.002xs R2 = 0.08 rc2 = 0.02; rs2 = 0.06
晚期 Late 砾质荒漠 Desert pt = 0.604 + 0.002xc + 0.002xw R2 = 0.42* rc2 = 0.22*; rw2 = 0.20*
沙质荒漠 Dune pt = 0.822 + 0.003xc + 0.002xw R2 = 0.35* rc2 = 0.01; rw2 = 0.34*

Table 5

Linear regression models for the relationships between the accumulated normalized difference vegetation index (NDVIINT) of the entire- (May to September), early- (May to June), and late-growing-season (July to September) precipitation and hydrological year precipitation (Ph) and the previous normalized difference vegetation index (NDVIINT-pys) at dune and desert"

研究区 Sites 线性回归方程 Linear regression formula R2 r2
生长季 Growing season 砾质荒漠 Desert pt = 0.384 + 0.003xh + 0.527pt-1 R2 = 0.73* rh2 = 0.40*; rt-12 = 0.34*
沙质荒漠 Dune pt = 0.659 + 0.005xh + 0.466pt-1 R2 = 0.60* rh2 = 0.35*; rt-12 = 0.24*
早期 Early 砾质荒漠 Desert pt = 0.245 + 0.001xc + 0.192pt-1 R2 = 0.47* rc2 = 0.20*; rt-12 = 0.27*
沙质荒漠 Dune pt = 0.427 + 0.001xc + 0.170pt-1 R2 = 0.49* rc2 = 0.01; rt-12 = 0.48*
晚期 Late 砾质荒漠 Desert pt = 0.140 + 0.002xh + 0.378pt-1 R2 = 0.70* rh2 = 0.34*; rt-12 = 0.36*
沙质荒漠 Dune pt = 0.262 + 0.004xh + 0.325pt-1 R2 = 0.50* rh2 = 0.33*; rt-12 = 0.17
1 Bai YF, Han XG, Wu JG, Chen ZZ, Li LH (2004). Ecosystem stability and compensatory effects in the Inner Mongolia grassland.Nature, 431, 181-184.
2 Bai YF, Wu JG, Xing Q, Pan QM, Huang JH, Yang DL, Han XG (2008). Primary production and rain use efficiency across a precipitation gradient on the Mongolia plateau.Ecology, 89, 2140-2153.
3 Byrne KM, Lauenroth WK, Adler PB (2013). Contrasting effects of precipitation manipulations on production in two sites within the central grassland region, USA.Ecosyst- ems, 16, 1039-1051.
4 Chang XX, Zhao AF, Zhao WZ, Chen HS (2003). Status of soil moisture in oasis and desert unirrigated vegetation region along middle reaches of Heihe River Basin.Journal of Soil and Water Conservation, 1, 126-129.(in Chinese with English abstract)[常学向, 赵爱芬, 赵文智, 陈怀顺 (2003). 黑河中游荒漠绿洲区免灌植被土壤水分状况. 水土保持学报, 1, 126-129.]
5 Chen XH, Duan ZH, He HZ (2009). Fractal characteristics of soil particle of desert-oasis ecotone.Soils, 41, 97-101.(in Chinese with English abstract)[陈小红, 段争虎, 何洪泽(2009). 荒漠-绿洲边缘区生态过渡带的土壤颗粒分形特征. 土壤, 41, 97-101.]
6 Dong YS, Qi YC, Liu JY, Geng YB, Domroes M, Yang XH, Liu LX (2005). Variation characteristics of soil respiration fluxes in four types of grassland communities under different precipitation intensity.Chinese Science Bulletin ,50, 583-591.(in Chinese with English abstract)[董云社, 齐玉春, 刘纪远, 耿元波, Domroes M, 杨小红, 刘立新 (2005). 不同降水强度4种草地群落土壤呼吸通量变化特征. 科学通报, 50, 472-480.]
7 Hamerlynck EP, Scott RL, Barron-Gafford GA (2013). Con- sequences of cool-season drought-induced plant mortality to chihuahuan desert grassland ecosystem and soil respiration dynamics.Ecosystems, 16, 1178-1191.
8 Hamerlynck EP, Scott RL, Barron-Gafford GA, Cavanaugh ML, Susan Moran M, Huxman TE (2012). Cool-season whole-plant gas exchange of exotic and native semiarid bunchgrasses.Plant Ecology ,213, 1229-1239.
9 Knapp AK, Burns CE, Fynn RWS, Kirkman KP, Morris CD, Smith MD (2006). Convergence and contingency in production-precipitation relationships in North American and South African C4 grasslands.Oecologia ,149, 456-464.
10 Knapp AK, Smith MD (2001). Variation among biomes in temporal dynamics of aboveground primary production.Science, 291, 481-484.
11 Li F, Zhao WZ, Liu H (2013). The response of aboveground net primary productivity of desert vegetation to rainfall pulse in the temperate desert region of northwest China.PLOS ONE, 8, e73003. doi:10.1371/journal.pone.0073003.
12 Li F, Zhao WZ, Liu H (2015). Productivity responses of desert vegetation to precipitation patterns across a rainfall gradient.Journal of Plant Research ,128, 284-295.
13 Li XB, Wang Y, Li KR (2000). NDVI sensitivity to seasonal and interannual rainfall variations in northern China.Acta Geographica Sinica, 55, 82-89.(in Chinese with English abstract)[李晓兵, 王瑛, 李克让 (2000). NDVI对降水季节性和年际变化的敏感性. 地理学报, 55, 82-89.]
14 Li YS (1983). The properties of water cycle in soil and their effect on water cycle for land in the loess region.Acta Ecological Sinica, 3, 91-101.(in Chinese with English abstract)[李玉山 (1983). 黄土区土壤水分循环特征及其对陆地水分循环的影响. 生态学报, 3, 91-101.]
15 Liu JL, Zhao WZ, Li FR (2015). Distribution of ground arthropod community in arid desert in the middle reaches of Heihe River.Arid Zone Research, 32, 1192-1200.(in Chinese with English abstract)[刘继亮, 赵文智, 李锋瑞 (2015). 黑河中游荒漠地面节肢动物分布特征. 干旱区研究, 32, 1192-1200.]
16 Liu YB, Zhang TG, Li XR, Zhang LJ, Bai Y, An LZ, Wang G (2006). Protective mechanism of desiccation tolerance inReaumuria soongorica, Leaf abscission and sucrose accumulation in the stem. Science in China Series C, Life Science ,36, 328-333.(in Chinese with English abstract)[刘玉冰, 张腾国, 李新荣, 张丽静, 白琰, 安黎哲, 王刚 (2006). 红砂(Reaumuria soongorica)忍耐极度干旱的保护机制: 叶片脱落和茎中蔗糖积累. 中国科学C辑: 生命科学, 36, 328-333.]
17 Meng XJ, Zhang SF, Zhang YY (2012). The temporal and spatial change of temperature and precipitation in Hexi corridor in recent 57 years.Acta Geographica Sinica, 67, 1482-1492.(in Chinese with English abstract)[孟秀敬, 张士锋, 张永勇 (2012). 河西走廊57年来气温和降水时空变化特征. 地理学报, 67, 1482-1492.]
18 Milchunas DG, Forwood JR, Lauenroth WK (1994). Produc- tivity of long-term grazing treatments in response to seasonal precipitation.Journal Range Management, 47, 133-139.
19 Noy-Meir I (1973). Desert ecosystems, environment and producers.Annual Review of Ecology and Systematics, 4, 25-51.
20 Oesterheld M, Loreti J, Semmartin M, Sala OE (2001). Inter-annual variation in primary production of a semi-arid grassland related to previous-year production.Journal of Vegetation Science, 12, 137-142.
21 Ospina S, Rusch GM, Pezo D, Casanoves F, Sinclair FL (2012). More stable productivity of semi natural grasslands than sown pastures in a seasonally dry climate.PLOS ONE, 7, e35555. doi:10.1371/journal.pone.0035555.
22 Peters D, Yao J, Browning D, Rango A (2014). Mechanisms of grass response in grasslands and shrublands during dry or wet periods.Oecologia, 174, 1323-1334.
23 Reichmann L, Sala OE, Peters D (2013). Precipitation legacies in desert grassland primary production occur through previous-year tiller density.Ecology, 94, 435-443.
24 Robertson TR, Bell CW, Zak JC, Tissue DT (2009). Precipita- tion timing and magnitude differentially affect above- ground annual net primary productivity in three perennial species in a Chihuahuan Desert grassland.The New Phytologist, 181, 230-242.
25 Robinson TM, La Pierre KJ, Vadeboncoeur MA, Byrne KM, Thomey ML, Colby SE (2013). Seasonal, not annual precipitation drives community productivity across ecosystems.Oikos, 122, 727-738.
26 Rustad LE (2008). The response of terrestrial ecosystems to global climate change: Towards an integrated approach.Science of the Total Environment, 404, 222-235.
27 Sala OE, Gherardi LA, Reichmann L, Jobbagy E, Peters D (2014). Legacies of precipitation fluctuations on primary production, theory and data synthesis. Philosophical Transactions of the Royal Society-Biological Sciences, 367, 3135-3144.
28 Shi Z, Thomey ML, Mowll W, Litvak M, Brunsell NA, Collins SL, Pockman WT, Smith MD, Knapp AK, Luo Y (2014). Differential effects of extreme drought on production and respiration, synthesis and modeling analysis.Biogeo- sciences, 11, 621-633.
29 Swetnam TW, Betancourt JL (1998). Mesoscale disturbance and ecological response to decadal climatic variability in the American Southwest.Journal of Climate, 11, 3128-3147.
30 Thomey ML, Collins SL, Vargas R, Johnson JE, Brown RF, Natvig DO, Friggens MT (2011). Effect of precipitation variability on net primary production and soil respiration in a Chihuahuan Desert grassland.Global Change Biology, 17, 1505-1515.
31 Wang H, Zhao WZ, Wu LY (2010). Change of soil physical properties with precipitation gradient in desert region of Hexi corridor.Bulletin of Soil and Water Conservation, 30, 46-51.(in Chinese with English abstract)[王蕙, 赵文智, 武利玉 (2010). 河西走廊荒漠区土壤物理性质沿降水梯度的变化. 水土保持通报, 30, 46-51.]
32 Wang M, Su YZ, Yang R (2013). Allocation patterns of above- and belowground biomass in desert grassland in the middle reaches of Heihe River, Gansu Province, China.Chinese Journal of Plant Ecology, 37, 209-219.(in Chinese with English abstract)[王敏, 苏永中, 杨荣, 杨晓 (2013). 黑河中游荒漠草地地上和地下生物量的分配格局. 植物生态学报, 37, 209-219.]
33 Wang SP, Song LC, Han YX, Lu DR (2011). Analysis on mean abrupt change of precipitation in Hexi corridor region in recent 50 years.Plateau Meteorology, 30, 1286-1293.(in Chinese with English abstract)[王素萍, 宋连春, 韩永翔, 陆登荣 (2011). 近50年河西走廊地区降水均值突变特征分析. 高原气象, 30, 1286-1293.]
34 Weltzin JF, Loik ME, Schwinning S, Williams DG, Fay PA, Haddad BM, Harte J, Huxman TE, Knapp AK, Lin GH, Pockman WT, Shaw MR, Small EE, Smith MD, Smith SD, Tissue DT, Zak JC (2003). Assessing the response of terrestrial ecosystems to potential changes in precipitation.Bioscience, 53, 941-952.
35 Williams CA, Albertson JD (2006). Dynamical effects of the statistical structure of annual rainfall on dryland vegetation.Global Change Biology, 12, 777-792.
36 Xu XH, He MZ (2010). Experimental Design, the Design- Expert And SPSS Application. Science Press, Beijing.(in Chinese) [徐向宏, 何明珠 (2010). 试验设计与Design- Expert、SPSS应用. 科学出版社, 北京.]
37 Yahdjian L, Sala OE (2006). Vegetation structure constrains primary production response to water availability in the Patagonian steppe. Ecology, 87, 952-962.
38 Yang HJ, Wu MY, Liu WX, Zhang Z, Zhang NL, Wan SQ (2011). Community structure and composition in response to climate change in a temperate steppe.Global Change Biology, 17, 452-465.
39 Zeng YJ, Wang YR, Zhang BL, Zhuang GH (2002). Repro- ductive characteristics ofReaumuria soongorica popula- tions. Acta Prataculturae Sinica, 11, 66-71.(in Chinese with English abstract)[曾彦军, 王彦荣, 张宝林, 庄光辉 (2002). 红砂种群繁殖特性的研究. 草业学报, 11, 66-71.]
40 Zeppel MJB, Wilks JV, Lewis JD (2014). Impacts of extreme precipitation and seasonal changes in precipitation on plants.Biogeosciences, 11, 3083-3093.
41 Zhao MS, Gou XH, Zhou FF, Xie YW, Su JD (2011). Changes inNDVI and its relationship with meteorological factors in the upper-middle Heihe river basin region. Journal of Lanzhou University (Natural Sciences), 47, 33-38.(in Chinese with English abstract)[赵铭石, 勾晓华, 周非飞, 颉耀文, 苏军德 (2011). 黑河中上游地区NDVI对气象因子的响应分析. 兰州大学学报(自然科学版), 47, 33-38.]
42 Zhao WZ, Chang XL (2014). The effect of hydrologic process changes onNDVI in the desert-oasis ecotone of the Hexi Corridor. Science China-Earth Sciences, 44, 1561-1571.(in Chinese with English abstract)[赵文智, 常学礼 (2014). 河西走廊水文过程变化对荒漠绿洲过渡带NDVI的影响. 中国科学: 地球科学, 44, 1561-1571.]
43 Zhao WZ, Liu B (2010). The response of sap flow in shrubs to rainfall pulses in the desert region of China.Agricultural and Forest Meteorology, 150, 1297-1306.
44 Zhou H, Zheng XJ, Tang LS, Li Y (2013). Differences and similarities between water sources ofTamarix ramosiss- ima, Nitraria sibirica and Reaumuria soongorica in the southeastern Junggar Basin. Chinese Journal of Plant Ecology, 37, 665-673.(in Chinese with English abstract)[周海, 郑新军, 唐立松, 李彦 (2013). 准噶尔盆地东南缘多枝柽柳、白刺和红砂水分来源的异同. 植物生态学报, 37, 665-673.]
45 Zhuang YL, Zhao WZ, Xie GX, Hu G (2008). The feature ofCalligonum mongolicum population and its expansion process in sandy habitat. Acta Ecologica Sinica, 28, 1399-1407.(in Chinese with English abstract)[庄艳丽, 赵文智, 谢国勋, 胡广录 (2008). 沙地生境沙拐枣(Calligonum mongolicum)种群特征及其扩张. 生态学报, 28, 1399-1407.]
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