Chin J Plan Ecolo ›› 2012, Vol. 36 ›› Issue (12): 1237-1247.doi: 10.3724/SP.J.1258.2012.01237

• Research Articles • Previous Articles     Next Articles

Spatial pattern of vegetation precipitation use efficiency and its response to precipitation and temperature on the Qinghai-Xizang Plateau of China

YE Hui1,2, WANG Jun-Bang2*, HUANG Mei2, and QI Shu-Hua1   

  1. 1School of Geography and Environment, Jiangxi Normal University, Nanchang 330022, China;

    2Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
  • Received:2012-02-20 Revised:2012-07-27 Online:2012-11-28 Published:2012-12-01
  • Contact: WANG Jun-Bang E-mail:jbwang@igsnrr.ac.cn

Abstract:

Aims Precipitation use efficiency (PUE) is a key to understanding the coupling between ecosystem carbon and water cycles. Our objective was to probe the spatial PUE pattern and its response to climate on the Qinghai-Xizang Plateau to better understand mechanisms of vegetation productivity and improve ecosystem process models.
Methods GLOPEN-CEVSA model was applied to estimate net primary production (NPP) by using the Fraction of Photosynthetically Active Radiation Absorbed by Vegetation (MOD15A2), and spatially interpolated meteorological data in 2000–2008. The modeled NPP was significantly correlated with the observed above-ground net primary productivity (R2 = 0.49, p < 0.001, n = 97). The PUE was calculated as the ratio of NPP to the annual sum of precipitation.
Important findings The spatial pattern of PUE showed large differences among vegetation types. Crops had the highest PUE, and alpine meadow had higher PUE than alpine steppe. These differences were related to the precipitation and temperature distribution on the plateau. The PUE was relatively stable and the lowest value of (0.026 ± 0.190) g C·m–2·mm–1 (mean ± standard deviation) with the highest coefficient of variance (CV) of 721% was where precipitation was < 90 mm. Where precipitation was 90–300 mm, PUE was relatively stable and also low ((0.029 ± 0.074) g C·m–2·mm–1) with relatively high CV (252%). Together precipitation and air temperature in this precipitation range explained 43.4% of the spatial variance of PUE, and the effect of precipitation was 1.7 times that of temperature (p < 0.001). The area with precipitation from 300–650 mm, mainly covered by alpine steppe (45%), had relatively high PUE ((0.123 ± 0.191) g C·m–2·mm–1) with a CV of 155%. The significant correlation of PUE with climate factors explained 97.8% spatial variance of PUE. Temperature had the dominant role, having 1.5 times the effect of precipitation. With increasing precipitation, PUE reached a peak of 0.26 g C·m–2·mm–1 at 650 mm of precipitation and then showed a decreasing trend. The precipitation of the mountainous Nyingchi region, Xizang, is >845 mm, and the region is mainly covered with evergreen needleleaf forest. It has relatively high PUE ((0.210 ± 0.246) g C·m–2·mm–1) with a minimum CV of 117%. Temperature and precipitation together explained 93.1% of the spatial variation of PUE for Nyingchi. Precipitation was negatively correlated with PUE and its effect was 3.5 times that of temperature.

[1] Austin AT, Vitousek P (1998). Nutrient dynamics on a precipitation gradient in Hawai'i. Oecologia, 113, 519-529. CrossRef
[2] Bai YF, Wu JG, Qi X, 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. CrossRef
[3] Cao MK (曹明奎), Yu GR (于贵瑞), Liu JY (刘纪远), Li KR (李克让) (2004). Multi-scale observation and cross-scale mechanistic modeling on terrestrial ecosystem carbon cycle. Science in China Series D: Earth Sciences (中国科学D辑: 地球科学), 34, (Supp1. II), 1-14. CrossRef
[4] Fan JW, Shao QQ, Liu JY Wang JB, Harris W, Chen ZQ, Zhong HP, Xu XL and Liu RG (2010). Assessment of effects of climate change and grazing activity on grassland yield in the three rivers headwaters region of Qinghai-Tibet Plateau, China. Environmental Monitoring and Assessment, 170, 571-584. CrossRef
[5] Fan JW (樊江文), Shao QQ (邵全琴), Wang JB (王军邦), Chen ZQ (陈卓奇), Zhong HP (钟华平) (2011). An Analysis of Temporal-spatial Dynamics of Grazing Pressure on Grassland in Three Rivers Headwater Region. Chinese Journal of Grassland (中国草地学报). CrossRef
[6] Fang JY (方精云), Liu GH (刘国华), Xu SL (徐嵩龄) (1996). Carbon storage in terrestrial ecosystem in China In: Wang GC (王庚辰), Wen YP (温玉璞) eds. The Measurement of Greenhouse Gas and Their Release and Related Processes. Environment Science Press, Beijing, 109-128. CrossRef
[7] Fang JY(方精云), Liu GH (刘国华), Xu SL (徐嵩龄) (1996). Biomass and net production of forest vegetation in China. Acta Ecologica Sinica (生态学报), 16, 497-508. CrossRef
[8] Feng S (冯松), Tang MC (汤懋苍), Wang DM (王冬梅) (1998). New evidence of the Tibet Plateau as promoter area of Chinese climate change. Chinese Science Bulletin (科学通报), 43, 633-636. CrossRef
[9] Feng ZW (冯宗炜), Wang XK (王效科), Wu G (吴刚) (1999). Biomass and productivity of forest ecosystem in China. Science Press, Beijing. CrossRef
[10] Fischer R, Turner NC (1978). Plant productivity in the arid and semiarid zones. Annualsa Review of Plant Physiology, 29, 277-317. CrossRef
[11] Halse SA, Scanlon MD, Cocking JS, Smith MJ, Kay WR. (2007). Factors affecting river health and its assessment over broad geographic ranges: the Western Australian experience. Environmental Monitoring and Assessment, 134, 161-175. CrossRef
[12] Hu ZM, Yu GR, Fan JW, Zhong HP, Wang SQ, Li SG (2010). Precipitation-use efficiency along a 4500-km grassland transect. Global Ecology and Biogeography, 19, 842-851. CrossRef
[13] Hu ZM (胡中民), Yu GR (于贵瑞), Wang QF (王秋凤), Zhao FH (赵风华) (2009). Ecosystem level water use efficiency: A review. Acta Ecologica Sinica (生态学报), 29, 1498-1507. CrossRef
[14] Huxman TE, Smith MD, Fay PA, Knapp AK, Shaw MR, Loik ME, Smith SD, Tissue DT, Zak JC, Weltzin JF, Pockman WT, Sala OE, Haddad BM, Harte J, Koch GW, Schwinning S, Small EE, Williams DG (2004). Convergence across biomes to a common rain-use efficiency. Nature, 429, 651-654. CrossRef
[15] Lauenroth WK, Burke IC, Paruelo JM (2000). Patterns of production and precipitation-use efficiency of winter wheat and native grasslands in the central Great Plains of the United States. Ecosystems, 3, 344-351. CrossRef
[16] Le Houérou HN (1984). Rain use efficiency: a unifying concept in arid-land ecology. Journal of Arid Environments, 7, 213-247. CrossRef
[17] Li KR (李克让), Huang M (黄玫), Tao B (陶波) (2009). Process-Based Modeling on the Response and Adaptation of Chinese Terrestrial Ecosystems to Global Change. China Meteorological Press, Beijing. CrossRef
[18] Lieth H (1975). Modeling the primary production of the world. In: Lieth H, Whittaker RH Eds. Primary Productivity of the Biosphere. Springer, Berlin, Heidelberg, New York, 237-263. CrossRef
[19] Liu ML (刘明亮) (2001). Land-Use/Land Cover Change and Terrestrial Ecosystem Phytomass Carbon Pool and Production in China (中国土地利用/土地覆被变化与陆地生态系统植被碳库和生产力研究). PhD dissertation, Institute of Remote Sensing Applications, Chinese Academy of Sciences, Beijing. CrossRef
[20] Liu X, Chen B (2000). Climatic warming in the Tibetan Plateau during recent decades. International Journal of Climatology, 20, 1729-1742. CrossRef
[21] Liu YH (刘勇洪), Niu Z (牛铮), Xu YM (徐永明), Wang CY (王长耀), Li GC (李贵才) (2006). Design of land cover classification system for China and its application research based on MODIS data. Transactions of the Chinese Society of Agricultural Engineering (农业工程学报), 22, 99-104. CrossRef
[22] Lu L (卢玲), Li X (李新), Huang CL (黄春林), Frank Veroustraete (2007). Analysis of the spatio-temporal characteristics of water use efficiency of vegetation in west china. Journal of Glaciology and Geocryology (冰川冻土), 29, 777-784. CrossRef
[23] Paruelo JM, Lauenroth WK, Burke IC, Sala OE (1999). Grassland precipitation-use efficiency varies across a resource gradient. Ecosystems 2, 64-68. 
[24] Remmert H (Translated by Zhuang JS (庄吉珊)) (1988). Ecology, Science Press, Beiing. 
[25] Rosenzweig ML (1968). Net primary productivity of terrestrial communities: prediction from climatological data. American Naturalist. 102, 67-74. CrossRef
[26] Sala OE, Parton WJ, Lauenroth WK (1988). Primary production of the central grassland region of the United States. Ecology, 69, 40-45. CrossRef
[27] Stuart CF (Translated by Li B (李博), Zhao B (赵斌), Peng RH (彭容豪)) (2005). Principles of Terrestrial Ecosystem Ecology. Higher Education Press, Beijing. CrossRef
[28] Tang MC (汤懋苍), Li CQ (李存强) (1992). Evidence Analysis on the Tibet Plateau as Promoter Area of Chinese Climate Change. In: The China Society on Tibet Plateau (Eds.). Proceedings of the 1st International Symposium on the Tibetan Plateau. Sciences Press, Beijing, 42-48. 
[29] Wang JB (王军邦) (2004). Chinese Terrestrial Net Ecosystem Productive Model Applied Remote Sensing Data (中国陆地生态系统净初级生产力与净生态系统生产力模拟研究). PhD dissertation, Zhejiang University, Hangzhou. 
[30] Wang JB (王军邦) (2007). Modeling Carbon Fluxes of Terrestrial Ecosystem on Regional Scale through Coupling a Remote Sensing Model with on Ecosystem Process Model (基于遥感模型和过程模型耦合的区域陆地生态系统碳通量模拟研究). Post-doctoral work report, Institute of Geographical Sciences and Nature Resources Research, Chinese Academy of Sciences, Beijing. 
[31] Wang JB (王军邦), Liu JY (刘纪远), Shao QQ (邵全琴), Liu RG (刘荣高), Fan JW (樊江文), Chen ZQ (陈卓奇) (2009). Spatial-temporal patterns of net primary productivity for 1988-2004 based on GLOPEM-CEVSA model in the “Three-river Headwaters” region of Qinghai province, China. Chinese Journal of Plant Ecology (植物生态学报), 33, 254-269. CrossRef
[32] Wang JB, Liu JY, Cao MK, Liu YF, Yu GR, Li GC, Qi SH, Li KR. (2011). Modeling carbon fluxes of different forests by coupling a remote-sensing model with an ecosystem process model. International Journal of Remote Sensing, 32, 6539-6567. CrossRef
[33] Wang Y, Cao MK, Tao B, Li KR (2006). The characteristics of spatio-temporal patterns in precipitation in China under the background of global climate change. Geographical Research, 25, 1031-1041. CrossRef
[34] Yang YH, Fang JY, Fay PA, Bell JE, Ji C (2010). Rain use efficiency across a precipitation gradient on the Tibetan Plateau. Geophysical Research Letters, 37, L15702. CrossRef
[35] Yao TD (姚檀栋), Zhu LP (朱立平) (2006). The response of environmental changes on Tibetan Plateau to global changes and adaptation strategy. Advances in Earth Science (地球科学进展), 21, 459-464. CrossRef
[36] Yu GR (于贵瑞) (2009). Scientific Frontier on Human Activities and Ecosystem Changes. Higher Education Press, Beijing. CrossRef
[37] Yu GR (于贵瑞), Wang QF (王秋凤) (2010). Ecophysiology of Plant Photosynthesis, Transpiration, and Water Use. Science Press, Beijing. CrossRef
[38] Yu GR, Song X, Wang QF, Liu Y, Guan D, Yan J, Sun X, Zhang L, Wen X. (2008). Water use efficiency of forest ecosystems in eastern China and its relations to climatic variables. New Phytologist, 177, 927-937. CrossRef
[39] Zhao J (赵济), Chen CK (陈传康) (1999). Geography of China. Higher Education Press, Beijing. CrossRef
[40] Zheng D (郑度), Li BY (李炳元) (1999). Progress in studies on geographical environments of the Qinghai-Xizang Plateau. Scientia Geographica Sinica (地理科学), 19, 295-302. CrossRef
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[1] Lu Zhong-shu. Plant Growth Regutators in Relation to Plant Water Status[J]. Chin Bull Bot, 1985, 3(04): 1 -6 .
[2] Li Da Jue;Han Yun-zhou and Wan Li-ping. Studies on Germplasm Collections of Carthamus tinctorius IV Screening of the characterization of Seed Domancy[J]. Chin Bull Bot, 1990, 7(02): 50 -52 .
[3] . [J]. Chin Bull Bot, 1999, 16(增刊): 45 -46 .
[4] Yang Hong-yuan. Basic Principle and Method of Fluorescence Microscopy[J]. Chin Bull Bot, 1984, 2(06): 45 -48 .
[5] LU Jin-Yao;LUO Ai-Ling and LIANG Zheng. Some Improvement of TD-PAGE Technology[J]. Chin Bull Bot, 1998, 15(03): 69 -72 .
[6] LI Ling-Hao and CHEN Zuo-Zhong. The Global Carbon Cycle in Grassland Ecosystems and Its Responses to Global Change I . Carbon Flow Compartment Model, Inputs and Storage[J]. Chin Bull Bot, 1998, 15(02): 14 -22 .
[7] Huanhuan Xu, Jian Kang, Mingxiang Liang. Research Advances in the Metabolism of Fructan in Plant Stress Resistance[J]. Chin Bull Bot, 2014, 49(2): 209 -220 .
[8] . [J]. Chin Bull Bot, 2013, 48(1): 4 -5 .
[9] . [J]. Chin Bull Bot, 1996, 13(专辑): 45 .
[10] SHU Qun-Fang;ZHOU Lu;LI Wen-Bin;ZHANG LI-Ming and SUN Yong-Ru. Study on Gel Electrophoresis of Protein from Plant and Our Improved Methods[J]. Chin Bull Bot, 1998, 15(06): 73 -78 .