| Brief Communication |
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| Seasonal and inter-annual variations in carbon fluxes and evapotranspiration over cotton field under drip irrigation with plastic mulch in an arid region of Northwest China |
| Jie BAI1, Jin WANG2, Xi CHEN1, GePing LUO1, Hao SHI3, LongHui LI3, JunLi LI1 |
1 State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences,
Urumqi 830011, China;
2 Wulanwusu Agrometeorological Experiment Station, Shihezi Meteorological Administration, Shihezi 832003, China;
3 Plant Functional Biology & Climate Change Cluster, University of Technology, Sydney, NSW 2007, Australia |
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Abstract Xinjiang is the largest semi-arid and arid region in China, and drip irrigation under plastic mulch is widely used in this water-limited area. Quantifying carbon and water fluxes as well as investigating their environmental drivers over cotton fields is critical for understanding regional carbon and water budgets in Xinjiang, the largest cotton production basin of China. In this study, an eddy covariance (EC) technique was used to measure the carbon and water fluxes of cotton field under drip irrigation with plastic mulch in the growing seasons of 2009, 2010, 2012 and 2013 at Wulanwusu Agrometeorological Experiment Station, a representative oasis cropland in northern Xinjiang. The diurnal patterns of gross primary production (GPP), net ecosystem exchange (NEE) and evapotranspiration (ET) showed obviously sinusoidal variations from June to September, while the diurnal ecosystem respiration (Res) was stable between daytime and nighttime. The daytime hourly GPP and ET dis-played asymptotic relationships with net solar radiation (Rnet), while showed concave patterns with raising vapor pressure deficit (VPD) and air temperature (Ta). The increases in hourly GPP and ET towards the maximum occurred over half ranges of VPD and Ta. The seasonal variations of GPP, NEE and ET were close to the cotton phenology, which almost reached the peak value in July. The cumulative GPP averaged 816.2±55.0 g C/m2 in the growing season (from April to October), and more than half of GPP was partitioned into NEE (mean value of –478.6±41.4 g C/m2). The mean seasonal ET was 501.3±13.9 mm, and the mean water use efficiency (WUE) was 1.0±0.1 (mg C/g H2O)/d. The agro-ecosystem behaved as a carbon sink from squaring to harvest period, while it acted as a carbon source before the squaring time as well as after the harvest time.
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Received: 31 March 2014
Published: 10 April 2015
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| Fund: This work was supported by the West Light Foundation of the Chinese Academy of Sciences (XBBS201110), the National Natural Science Foundation of China (41101101) and the Chi-nese Academy of Sciences Key Deployment Project (KZZD- EW-08-02-02). |
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Corresponding Authors:
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| Asner G P, Archer S, Hughes R F, et al. 2003. Net changes in regional woody vegetation cover and carbon storage in Texas Drylands, 1937–1999. Global Change Biology, 9: 316–335.Aubinet M, Moureaux C, Bodson B, et al. 2009. Carbon seques-tration by a crop over a 4-year sugar beet/winter wheat/seed potato/winter wheat rotation cycle. Agricultural and Forest Meteorology, 149: 407–418.Baldocchi D D. 2003. Assessing the eddy covariance technique for evaluating carbon dioxide exchange rates of ecosystems: past, present and future. Global Change Biology, 9: 479–492.Chakraborty D, Nagarajan S, Aggarwal P, et al. 2008. Effect of mulching on soil and plant water status, and the growth and yield of wheat (Triticum aestivum L.) in a semi-arid environ-ment. Agricultural Water Management, 95: 1323–1334.Conaty W C, Mahan J R, Neilsen J E, et al. 2014. Vapour pressure deficit aids the interpretation of cotton canopy temperature response to water deficit. Functional Plant Biology, 41(5): 535–546.Da?delen N, Ba?al H, Y?lmaz E, et al. 2009. Different drip irriga-tion regimes affect cotton yield, water use efficiency and fiber quality in western Turkey. Agricultural Water Management, 96: 111–120.Deng M. 2009. Studies on water resources strategy in Xinjiang. China Water Resources, 17: 23–27. (in Chinese)Dong H Z, Li W J, Tang W, et al. 2009. Early plastic mulching increases stand establishment and lint yield of cotton in saline fields. Field Crops Research, 111: 269–275.Duiker S W, Lal R. 2000. Carbon budget study using CO2 flux measurements from a no till system in central Ohio. Soil & Tillage Research, 54: 21–30.Duursma R A, Bartona C V M, Lin Y S, et al. 2014. The peaked response of transpiration rate to vapour pressure deficit in field conditions can be explained by the temperature optimum of photosynthesis. Agricultural and Forest Meteorology, 189–190: 2–10.Grismer M E. 2002. Regional cotton lint yield, ETc and water value in Arizona and California. Agricultural Water Manage-ment, 54: 227–242.Ham J M, Kluitenberg G J. 1994. Modeling the effect of mulch optical properties and mulch-soil contact resistance on soil heating under plastic mulch culture. Agricultural and Forest Meteorology, 71(3–4): 403–424.Hou X Y, Wang F X, Han J J, et al. 2010. Duration of plastic mulch for potato growth under drip irrigation in an arid region of Northwest China. Agricultural and Forest Meteorology, 150(1): 115–121.Hutmacher R B, Krieg D R. 1983. Photosynthetic rate control in cotton: stomatal and nonstomatal factors. Plant Physiology, 73(3): 658–661.Ibragimov N, Evett S R, Esanbekov Y, et al. 2007. Water use efficiency of irrigated cotton in Uzbekistan under drip and furrow irrigation. Agricultural Water Management, 90: 112–120.Ko J, Piccinni G. 2009. Characterizing leaf gas exchange re-sponses of cotton to full and limited irrigation conditions. Field Crops Research, 112: 77–89.Lasslop G, Reichstein M, Papale D, et al. 2010. Separation of net ecosystem exchange into assimilation and respiration using a light response curve approach: critical issues and global eval-uation. Global Change Biology, 16: 187–208.Lei H M, Yang D W. 2010. Seasonal and inter-annual variations in carbon dioxide exchange over a cropland in the North China Plain. Global Change Biology, 16: 2944–2957.Li F M, Guo A H, Wei H. 1999. Effects of clear plastic film mulch on yield of spring wheat. Field Crops Research, 63: 79–86.Li F M, Wang J, Xu J Z, et al. 2004. Productivity and soil response to plastic film mulching durations for spring wheat on entisols in the semiarid Loess Plateau of China. Soil & Tillage Re-search, 78: 9–20.Li L H, Chen X, Tol C V C, et al. 2013. Growing season net eco-system CO2 exchange of two desert ecosystems with alkaline soils in Kazakhstan. Ecology and Evolution, 4(1): 14–26.Li L, Vuichard N, Viovy N, et al. 2011a. Importance of crop vari-eties and management practices: evaluation of a process-based model for simulating CO2 and H2O fluxes at five European maize (Zea mays L.) sites. Biogeosciences, 8: 1721–1736.Li Z G, Zhang R H, Wang X J, et al. 2011b. Carbon dioxide fluxes and concentrations in a cotton field in northwestern China: ef-fects of plastic mulching and drip irrigation. Pedosphere, 21(2): 178–185.Li Z G, Zhang R H, Wang X J, et al. 2012. Growing season carbon dioxide exchange in flooded non-mulching and non-flooded mulching cotton. PLoS ONE, 7(11): e50760, doi: 10.1371/journal. pone.0050760.Li Z Q, Yu G R, Wen X F, et al. 2005. Energy balance closure at ChinaFLUX sites. Science in China (Earth Sciences), 48: 51–62.Liu Y, Li S Q, Yang S J, et al. 2013. Diurnal and seasonal soil CO2 flux patterns in spring maize fields on the Loess Plateau, Chi-na. Acta Agriculturae Scandinavica (Soil & Plant Science), 60(3): 245–255.Macfarlane C, White D A, Adams M A. 2004. The apparent feed-forward responseto vapour pressure deficit of stomata in droughted, field-grown Eucalyptus globulus Labill. Plant, Cell & Environment, 27: 1268–1280.Monteith J L. 1995. A reinterpretation of stomatal responses to humidity. Plant, Cell & Environment, 18: 357–364.Okuda H, Noda K, Sawamoto T, et al. 2007. Emission of N2O and CO2 and uptake of CH4 in soil from a Satsuma mandarin or-chard under mulching cultivation in central Japan. Journal of the Japanese Society for Horticultural Science, 76(4): 279–287.Oweis T Y, Farahani H J, Hachum A Y. 2011. Evapotranspiration and water use of full and deficit irrigated cotton in the Medi-terranean environment in northern Syria. Agricultural Water Management, 98: 1239–1248.Papale D, Reichstein M, Aubinet M, et al. 2006. Towards a stand-ardized processing of Net Ecosystem Exchange measured with eddy covariance technique: algorithms and uncertainty estima-tion. Biogeosciences, 3: 571–583.Ramakrishna A, Tam H M, Wani S P, et al. 2006. Effect of mulch on soil temperature, moisture, weed infestation and yield of groundnut in northern Vietnam. Field Crops Research, 95(2–3): 115–125.Reichstein M, Falge E, Baldocchi D, et al. 2005. On the separation of net ecosystem exchange into assimilation and ecosystem respiration: review and improved algorithm. Global Change Biology, 11: 1424–1439.Statistic Bureau of Xinjiang Uygur Autonomous Region. 1990–2012. Xinjiang Statistical Yearbook. Beijing: China Sta-tistics Press. (in Chinese)Suyker A E, Verma S B, Burba G G, et al. 2005. Gross primary production and ecosystem respiration of irrigated maize and irrigated soybean during a growing season. Agricultural and Forest Meteorology, 131: 180–190.Tang L S, Li Y, Zhang J H. 2005. Physiological and yield re-sponses of cotton under partial rootzone irrigation. Field Crops Research, 94: 214–223.Tarara J M, Ham J M. 1999. Measuring sensible heat flux in plas-tic mulch culture with aerodynamic conductance sensors. Ag-ricultural and Forest Meteorology, 95: 1–13.Vickers D, Mahrt L. 1997. Quality control and flux sampling problems for tower and aircraft data. Journal of Atmospheric and Oceanic Technology, 14: 512–526.Wang C, Isoda A, Wang P. 2004. Growth and yield performance of some cotton cultivars in Xinjiang, China, an arid area with short growing period. Journal of Agronomy and Crop Science, 190: 177–183.Wang W, Liao Y C, Guo Q. 2013. Seasonal and annual variations of CO2 fluxes in rain-fed winter wheat agro-ecosystem of Lo-ess Plateau, China. Journal of Integrative Agriculture, 12(1): 147–158.Wang X F, Ma M G, Huang G H, et al. 2012. Vegetation primary production estimation at maize and alpine meadow over the Heihe River Basin, China. International Journal of Applied Earth Observation and Geoinformation, 17: 94–101.Whitley R, Zeppel M, Armstrong N, et al. 2008. A modified Jar-vis-Stewart model for predicting standscale transpiration of an Australian native forest. Plant and Soil, 305: 35–47.Whitley R, Macinnis-Ng C, Hutley L B, et al. 2011. Is productivity of mesic savannas light limited or water limited? Results of a simulation study. Global Change Biology, 17: 3130–3149.Whitley R, Taylor D, Macinnis-Ng C, et al. 2012. Developing an empirical model of canopy water flux describing the common response of transpiration to solar radiation and VPD across five contrasting woodlands and forests. Hydrological Pro-cesses, 27: 1133–1146.Williams M, Malhi Y, Nobre A, et al. 1998. Seasonal variation in net carbon exchange and evapotranspiration in a Brazillian rain forest. Plant, Cell & Environment, 21: 953–968.Wilson K, Goldstein A, Falge E, et al. 2002. Energy balance clo-sure at FLUXNET sites. Agricultural and Forest Meteorology, 113(1–4): 223–243.Yong J W G, Wong S C, Farquhar G D. 1997. Stomatal responses to changes in vapour pressure difference between leaf and air. Plant, Cell & Environment, 20: 1213–1216.Zhou S Q, Wang J, Liu J X, et al. 2012. Evapotranspiration of a drip-irrigated, film-mulched cotton field in northern Xinjiang, China. Hydrological Processes, 26: 1169–1178. |
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