| Research article |
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| How precipitation and grazing influence the ecological functions of drought-prone grasslands on the northern slopes of the Tianshan Mountains, China? |
HUANG Xiaotao1,2,3,4, LUO Geping3,4,*( ), CHEN Chunbo3,4, PENG Jian5,*(), ZHANG Chujie5, ZHOU Huakun1,2,4, YAO Buqing1,2,4, MA Zhen1,2,4, XI Xiaoyan6 |
1Qinghai Provincial Key Laboratory of Restoration Ecology for Cold Regions, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810008, China
2Key Laboratory of Adaptation and Evolution of Plateau Biota, Chinese Academy of Sciences, Xining 810008, China
3State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China
4University of Chinese Academy of Sciences, Beijing 100049, China
5Xinjiang Grassland Technical Popularization Station, Urumqi 830049, China
6Qinghai Environmental Sciences Research and Design Institute Co. Ltd., Xining 810007, China |
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Abstract Drought-prone grasslands provide a critical resource for the millions of people who are dependent on livestock for food security. However, this ecosystem is potentially vulnerable to climate change (e.g., precipitation) and human activity (e.g., grazing). Despite this, the influences of precipitation and grazing on ecological functions of drought-prone grasslands in the Tianshan Mountains remain relatively unexplored. Therefore, we conducted a systematic field investigation and a clipping experiment (simulating different intensities of grazing) in a drought-prone grassland on the northern slopes of the Tianshan Mountains in China to examine the influences of precipitation and grazing on aboveground biomass (AGB), soil volumetric water content (SVWC), and precipitation use efficiency (PUE) during the period of 2014-2017. We obtained the meteorological and SVWC data using an HL20 Bowen ratio system and a PR2 soil profile hydrometer, respectively. We found that AGB was clearly affected by both the amount and seasonal pattern of precipitation, and that PUE may be relatively low in years with either low or excessive precipitation. The PUE values were generally higher in the rapid growing season (April-July) than in the entire growing season (April-October). Overall, moderate grazing can promote plant growth under water stress conditions. The SVWC value was higher in the clipped plots than in the unclipped plots in the rapid growing season (April-July), but it was lower in the clipped plots than in the unclipped plots in the slow growing season (August-October). Our findings can enhance the understanding of the ecological effects of precipitation and grazing in drought-prone grasslands and provide data that will support the effective local grassland management.
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Received: 29 April 2019
Published: 10 January 2021
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Corresponding Authors:
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About author: PENG Jian (E-mail: pengjian1213@163.com)
*LUO Geping (E-mail: luogp@ms.xjb.ac.cn);
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| Cite this article:
HUANG Xiaotao, LUO Geping, CHEN Chunbo, PENG Jian, ZHANG Chujie, ZHOU Huakun, YAO Buqing, MA Zhen, XI Xiaoyan. How precipitation and grazing influence the ecological functions of drought-prone grasslands on the northern slopes of the Tianshan Mountains, China?. Journal of Arid Land, 2021, 13(1): 88-97.
URL:
http://jal.xjegi.com/10.1007/s40333-020-0078-6 OR http://jal.xjegi.com/Y2021/V13/I1/88
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| [1] |
Bai Y F, Wu J G, Clark C M, et al. 2012. Grazing alters ecosystem functioning and C:N:P stoichiometry of grasslands along a regional precipitation gradient. Journal of Applied Ecology, 49(6): 1204-1215.
doi: 10.1111/j.1365-2664.2012.02205.x
|
|
|
| [2] |
Derner J D, Boutton T W, Briske D D. 2006. Grazing and ecosystem carbon storage in the North American Great Plains. Plant and Soil, 280: 77-90.
doi: 10.1007/s11104-005-2554-3
|
|
|
| [3] |
Gherardi L A, Sala O E. 2019. Effect of interannual precipitation variability on dryland productivity: A global synthesis. Global Change Biology, 25(1): 269-276.
doi: 10.1111/gcb.14480
pmid: 30338886
|
|
|
| [4] |
Guo T, Weise H, Fiedler S, et al. 2018. The role of landscape heterogeneity in regulating plant functional diversity under different precipitation and grazing regimes in semi-arid savannas. Ecological Modelling, 379: 1-9.
doi: 10.1016/j.ecolmodel.2018.04.009
|
|
|
| [5] |
Heisler-White J L, Knapp A K, Kelly E F. 2008. Increasing precipitation event size increases aboveground net primary productivity in a semi-arid grassland. Oecologia, 158(1): 129-140.
doi: 10.1007/s00442-008-1116-9
pmid: 18670792
|
|
|
| [6] |
Hu Z M, Yu G R, Zhou Y L, et al. 2009. Partitioning of evapotranspiration and its controls in four grassland ecosystems: application of a two-source model. Agricultural and Forest Meteorology, 149(9): 1410-1420.
doi: 10.1016/j.agrformet.2009.03.014
|
|
|
| [7] |
Huang X T, Luo G P, He H L, et al. 2017a. Ecological effects of grazing in the northern Tianshan Mountains. Water, 9(12): 932, doi: 10.3390/w9120932.
doi: 10.3390/w9120932
|
|
|
| [8] |
Huang X T, Luo G P, Wang X X. 2017b. Land-atmosphere exchange of water and heat in the arid mountainous grasslands of Central Asia during the growing season. Water, 9(10): 727, doi: 10.3390/w9100727.
doi: 10.3390/w9100727
|
|
|
| [9] |
Huang X T, Luo G P, Han Q F. 2018. Temporospatial patterns of human appropriation of net primary production in Central Asia grasslands. Ecological Indicators, 91: 555-561.
doi: 10.1016/j.ecolind.2018.04.045
|
|
|
| [10] |
Huang Z, Miao H T, Liu Y, et al. 2018. Soil water content and temporal stability in an arid area with natural and planted grasslands. Hydrological Processes, 32(25): 3784-3792.
doi: 10.1002/hyp.v32.25
|
|
|
| [11] |
Jiang Y B, Zhang Y J, Zhu J T, et al. 2017. Effects of community structure on precipitation-use efficiency of grasslands in northern Tibet. Journal of Vegetation Science, 28(2): 281-290.
doi: 10.1111/jvs.2017.28.issue-2
|
|
|
| [12] |
Leroy G, Hoffmann I, From T, et al. 2018. Perception of livestock ecosystem services in grazing areas. Animal, 12(12): 2627-2638.
doi: 10.1017/S1751731118001027
pmid: 29757124
|
|
|
| [13] |
Liu H, Zang R, Chen H Y H. 2016. Effects of grazing on photosynthetic features and soil respiration of rangelands in the Tianshan Mountains of Northwest China. Scientific Reports, 6: 30087, doi: 10.1038/srep30087.
doi: 10.1038/srep30087
pmid: 27452980
|
|
|
| [14] |
Luo G P, Han Q F, Zhou D C, et al. 2012. Moderate grazing can promote aboveground primary production of grassland under water stress. Ecological Complexity, 11: 126-136.
doi: 10.1016/j.ecocom.2012.04.004
|
|
|
| [15] |
Marshall M, Tu K, Brown J. 2018. Optimizing a remote sensing production efficiency model for macro-scale GPP and yield estimation in agroecosystems. Remote Sensing of Environment, 217: 258-271.
doi: 10.1016/j.rse.2018.08.001
|
|
|
| [16] |
Martínez-García E, Rubio E, García-Morote F A, et al. 2017. Net ecosystem production in a Spanish black pine forest after a low burn-severity fire: Significance of different modelling approaches for estimating gross primary production. Agricultural and Forest Meteorology, 246: 178-193.
|
|
|
| [17] |
Milchunas D G, Lauenroth W K. 1993. Quantitative effects of grazing on vegetation and soils over a global range of environments. Ecological Monographs, 63(4): 327-366.
|
|
|
| [18] |
Ming G H, Hu H C, Tian F Q, et al. 2018. Precipitation alters plastic film mulching impacts on soil respiration in an arid area of Northwest China. Hydrology and Earth System Sciences, 22(5): 3075-3086.
|
|
|
| [19] |
Moreno-de las Heras M, Bochet E, Monleón V, et al. 2018. Aridity induces nonlinear effects of human disturbance on precipitation-use efficiency of Iberian woodlands. Ecosystems, 21: 1295-1305.
|
|
|
| [20] |
Mueller K E, Blumenthal D M, Pendall E, et al. 2016. Impacts of warming and elevated CO2 on a semi-arid grassland are non-additive, shift with precipitation, and reverse over time. Ecology Letters, 19(8): 956-966.
pmid: 27339693
|
|
|
| [21] |
Ojeda J J, Caviglia O P, Irisarri J G N, et al. 2018. Modelling inter-annual variation in dry matter yield and precipitation use efficiency of perennial pastures and annual forage crops sequences. Agricultural and Forest Meteorology, 259: 1-10.
|
|
|
| [22] |
Paruelo J M, Lauenroth W K, Burke I C, et al. 1999. Grassland precipitation-use efficiency varies across a resource gradient. Ecosystems, 2: 64-68.
|
|
|
| [23] |
Peng S S, Piao S L, Shen Z H, et al. 2013. Precipitation amount, seasonality and frequency regulate carbon cycling of a semi-arid grassland ecosystem in Inner Mongolia, China: A modeling analysis. Agricultural and Forest Meteorology, 178-179: 46-55.
|
|
|
| [24] |
Pickering C M, Growcock A J. 2009. Impacts of experimental trampling on tall alpine herbfields and subalpine grasslands in the Australian Alps. Journal of Environmental Management, 91(2): 532-540.
doi: 10.1016/j.jenvman.2009.09.022
pmid: 19854561
|
|
|
| [25] |
Ren H R, Zhou G S, Zhang F. 2018. Using negative soil adjustment factor in soil-adjusted vegetation index (SAVI) for aboveground living biomass estimation in arid grasslands. Remote Sensing of Environment, 209: 439-445.
|
|
|
| [26] |
Ren H Y, Eviner V T, Gui W Y, et al. 2018. Livestock grazing regulates ecosystem multifunctionality in semi-arid grassland. Functional Ecology, 32(12): 2790-2800.
|
|
|
| [27] |
Ren W B, Hu N N, Hou X Y, et al. 2017. Long-term overgrazing-induced memory decreases photosynthesis of clonal offspring in a perennial grassland plant. Frontiers in Plant Science, 8: 419, doi: 10.3389/fpls.2017.00419.
doi: 10.3389/fpls.2017.00419
pmid: 28484469
|
|
|
| [28] |
Shi G X, Yao B Q, Liu Y J, et al. 2017. The phylogenetic structure of AMF communities shifts in response to gradient warming with and without winter grazing on the Qinghai-Tibet Plateau. Applied Soil Ecology, 121: 31-40.
|
|
|
| [29] |
Striker G G, Mollard F P O, Grimoldi A A, et al. 2011. Trampling enhances the dominance of graminoids over forbs in flooded grassland mesocosms. Applied Vegetation Science, 14(1): 95-106.
|
|
|
| [30] |
Stuart-Haëntjens E, de Boeck H J, Lemoine N P, et al. 2018. Mean annual precipitation predicts primary production resistance and resilience to extreme drought. Science of the Total Environment, 636: 360-366.
|
|
|
| [31] |
Sun J, Du W P. 2017. Effects of precipitation and temperature on net primary productivity and precipitation use efficiency across China’s grasslands. GIScience & Remote Sensing, 54(6): 881-897.
|
|
|
| [32] |
White S R, Bork E W, Cahill Jr. J F. 2014. Direct and indirect drivers of plant diversity responses to climate and clipping across northern temperate grassland. Ecology, 95(11): 3093-3103.
doi: 10.1890/14-0144.1
|
|
|
| [33] |
Wittmer M H O M, Auerswald K, Schönbach P, et al. 2010. Do grazer hair and faeces reflect the carbon isotope composition of semi-arid C3/C4 grassland? Basic and Applied Ecology, 11(1): 83-92.
doi: 10.1016/j.baae.2009.10.007
|
|
|
| [34] |
Xu M, Wu H, Kang S C. 2018. Impacts of climate change on the discharge and glacier mass balance of the different glacierized watersheds in the Tianshan Mountains, Central Asia. Hydrological Processes, 32(1): 126-145.
|
|
|
| [35] |
Xu X, Sherry R A, Niu S L, et al. 2013. Net primary productivity and rain-use efficiency as affected by warming, altered precipitation, and clipping in a mixed-grass prairie. Global Change Biology, 19(9): 2753-2764.
pmid: 23649795
|
|
|
| [36] |
Yang S L, Hao Q, Liu H Y, et al. 2019. Impact of grassland degradation on the distribution and bioavailability of soil silicon: Implications for the Si cycle in grasslands. Science of the Total Environment, 657: 811-818.
|
|
|
| [37] |
Zhang D B, Yao P W, Na Z, et al. 2016. Soil water balance and water use efficiency of dryland wheat in different precipitation years in response to green manure approach. Scientific Reports, 6: 26856, doi: 10.1038/srep26856.
doi: 10.1038/srep26856
pmid: 27225842
|
|
|
| [38] |
Zhang G L, Biradar C M, Xiao X M, et al. 2018. Exacerbated grassland degradation and desertification in Central Asia during 2000-2014. Ecological Applications, 28(2): 442-456.
doi: 10.1002/eap.1660
pmid: 29205627
|
|
|
| [39] |
Zhang H F, Sun Y, Chang L, et al. 2018. Estimation of grassland canopy height and aboveground biomass at the quadrat scale using unmanned aerial vehicle. Remote Sensing, 10(6): 851, doi: 10.3390/rs10060851.
|
|
|
| [40] |
Zhang R P, Liang T G, Guo J, et al. 2018. Grassland dynamics in response to climate change and human activities in Xinjiang from 2000 to 2014. Scientific Reports, 8: 2888, doi: 10.1038/s41598-018-21089-3.
doi: 10.1038/s41598-018-21089-3
pmid: 29440664
|
|
|
| [41] |
Zhou G Y, Luo Q, Chen Y J, et al. 2018. Effects of livestock grazing on grassland carbon storage and release override impacts associated with global climate change. Global Change Biology, 25(3): 1119-1132.
doi: 10.1111/gcb.14533
pmid: 30466147
|
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