Soil organic carbon (SOC) and soil total nitrogen (STN) in arid regions are important components of global C and the N cycles, and their response to climate change will have important implications for both ecosystem processes and global climate feedbacks. Grassland ecosystems of Funyun County in the southern foot of the Altay Mountains are characterized by complex topography, suggesting large variability in the spatial distribution of SOC and STN. However, there has been little investigation of SOC and STN on grasslands in arid regions with a mountain-basin structure. Therefore, we investigated the characteristics of SOC and STN in different grassland types in a mountain-basin system at the southern foot of the Altai Mountains, north of the Junggar Basin in China, and explored their potential influencing factors and relationships with meteorological factors and soil properties. We found that the concentrations and storages of SOC and STN varied significantly with grassland type, and showed a decreasing trend along a decreasing elevation gradient in alpine meadow, mountain meadow, temperate typical steppe, temperate steppe desert, and temperate steppe desert. In addition, the SOC and STN concentrations decreased with depth, except in the temperate desert steppe. According to Pearson's correlation values and redundancy analysis, the mean annual precipitation, soil moisture content and soil available N concentration were significantly positively correlated with the SOC and STN concentrations. In contrast, the mean annual temperature, pH, and soil bulk density were significantly and negatively correlated with the SOC and STN concentrations. The mean annual precipitation and mean annual temperature were the primary factors related to the SOC and STN concentrations. The distributions of the SOC and STN concentrations were highly regulated by the elevation-induced differences in meteorological factors. Mean annual precipitation and mean annual temperature together explained 97.85% and 98.38% of the overall variations in the SOC and STN concentrations, respectively, at soil depth of 0–40 cm, with precipitation making the greatest contribution. Our results provide a basis for estimating and predicting SOC and STN concentrations in grasslands in arid regions with a mountain-basin structure.
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Anh P T Q, Gomi T, MacDonald L H, et al. 2014. Linkages among land use, macronutrient levels, and soil erosion in northern Vietnam: a plot-scale study. Geoderma, 232–234: 352–362.
Bai J H, Deng W, Zhang Y X. 2001. Spatial distribution of nitrogen and phosphorus in soil of Momoge Wetland. Journal of Soil and Water Conservation, 15(4): 79–81. (in Chinese)
Bai J H, Deng W, Zhu Y M, et al. 2002. Comparactive study on the distribution characteristics of soil organic matter and total nitrogen in wetlands-A case study of Xianghai and Horqin nature reserve. Scientia Geographica Sinica, 22(2): 232–237. (in Chinese)
Bai J H, Deng W, Zhu Y M, et al. 2004a. Spatial variability of nitrogen in soils from land/inland water ecotones. Communications in Soil Science and Plant Analysis, 35(5–6): 735–749.
Bai Y F, Han X G, Wu J G, et al. 2004b. Ecosystem stability and compensatory effects in the Inner Mongolia grassland. Nature, 431(7005): 181–184.
Bao S D. 2005. Soil Chemical Analysis of Agriculture (3rd ed.). Beijing: Chinese Agriculture Press, 42–58. (in Chinese)
Bond-Lamberty B, Thomson A. 2010. Temperature-associated increases in the global soil respiration record. Nature, 464(7288): 579–582.
Callesen I, Liski J, Raulund-Rasmussen K, et al. 2003. Soil carbon stores in Nordic well-drained forest soils—relationships with climate and texture class. Global Change Biology, 9(3): 358–370.
Camargo L A, Júnior J M, Pereira G T, et al. 2013. Spatial correlation between the composition of the clay fraction and contents of available phosphorus of an Oxisol at hillslope scale. CATENA, 100: 100–106.
Chang X F, Zhu X X, Wang S P, et al. 2014. Impacts of management practices on soil organic carbon in degraded alpine meadows on the Tibetan Plateau. Biogeosciences, 11(13): 3495–3503.
Chen L T, Jing X, Flynn D F B, et al. 2017b. Changes of carbon stocks in alpine grassland soils from 2002 to 2011 on the Tibetan Plateau and their climatic causes. Geoderma, 288: 166–174.
Chen Y, Huang Y, Sun W J. 2017a. Using organic matter and pH to estimate the bulk density of afforested/reforested soils in northwest and northeast China. Pedosphere, 27(5): 890–900.
Chen Y Z, Mu S J, Sun Z G, et al. 2016. Grassland carbon sequestration ability in China: a new perspective from terrestrial aridity zones. Rangeland Ecology & Management, 69(1): 84–94.
Conant R T, Paustian K. 2002. Spatial variability of soil organic carbon in grasslands: implications for detecting change at different scales. Environmental Pollution, 116(Suppl.1): 127–135.
Cui X Y, Wang Y F, Niu H S, et al. 2005. Effect of long-term grazing on soil organic carbon content in semiarid steppes in Inner Mongolia. Ecological Research, 20(5): 519–527.
Dai W H, Huang Y. 2006. Relation of soil organic matter concentration to climate and altitude in zonal soils of China. CATENA, 65(1): 87–94.
De Neve S, Hofman G. 2000. Influence of soil compaction on carbon and nitrogen mineralization of soil organic matter and crop residues. Biology and Fertility of Soils, 30(5–6): 544–549.
Dixon R K, Solomon A M, Brown S, et al. 1994. Carbon pools and flux of global forest ecosystems. Science, 263(5144): 185–190.
Dorji T, Odeh I O A, Field D J, et al. 2014. Digital soil mapping of soil organic carbon stocks under different land use and land cover types in montane ecosystems, Eastern Himalayas. Forest Ecology and Management, 318: 91–102.
Dorrepaal E, Toet S, Van Logtestijn R S P, et al. 2009. Carbon respiration from subsurface peat accelerated by climate warming in the subarctic. Nature, 460(7255): 616–619.
England J R, Paul K I, Cunningham S C, et al. 2016. Previous land use and climate influence differences in soil organic carbon following reforestation of agricultural land with mixed-species plantings. Agriculture, Ecosystems & Environment, 227: 61–72.
Fang J Y, Liu G H, Xu S L. 1996. Soil carbon pool in China and its global significance. Journal of Environmental Sciences, 8(2): 249–254.
Fang J Y, Yang Y H, Ma W H, et al. 2010. Ecosystem carbon stocks and their changes in China's grasslands. Science China Life Sciences, 53(7): 757–765.
Fu Q, Li B, Hou Y, et al. 2017. Effects of land use and climate change on ecosystem services in Central Asia's arid regions: a case study in Altay Prefecture, China. Science of the Total Environment, 607–608: 633–646.
Fu X L, Shao M G, Wei X R, et al. 2010. Soil organic carbon and total nitrogen as affected by vegetation types in Northern Loess Plateau of China. Geoderma, 155(1–2): 31–35.
Gansert D. 1994. Root respiration and its importance for the carbon balance of beech saplings (Fagus sylvatica L.) in a montane beech forest. Plant and Soil, 167(1): 109–119.
Ganuza A, Almendros G. 2003. Organic carbon storage in soils of the Basque Country (Spain): the effect of climate, vegetation type and edaphic variables. Biology and Fertility of Soils, 37(3): 154–162.
Gao Z Q, Fang H J, Bai J H, et al. 2016. Spatial and seasonal distributions of soil phosphorus in a short-term flooding wetland of the Yellow River Estuary, China. Ecological Informatics, 31: 83–90.
Garten C T Jr, Post III W M, Hanson P J, et al. 1999. Forest soil carbon inventories and dynamics along an elevation gradient in the southern Appalachian mountains. Biogeochemistry, 45(2): 115–145.
Garten C T Jr, Hanson P J. 2006. Measured forest soil C stocks and estimated turnover times along an elevation gradient. Geoderma, 136(1–2): 342–352.
Giardina C P, Ryan M G. 2000. Reply: soil warming and organic carbon content. Nature, 408(6814): 790.
He N P, Wang R M, Zhang Y H, et al. 2014. Carbon and nitrogen storage in inner Mongolian grasslands: relationships with climate and soil texture. Pedosphere, 24(3): 391–398.
Hevia G G, Buschiazzo D E, Hepper E N, et al. 2003. Organic matter in size fractions of soils of the semiarid Argentina. Effects of climate, soil texture and management. Geoderma, 116(3–4): 265–277.
Hodge A, Robinson D, Fitter A. 2000. Are microorganisms more effective than plants at competing for nitrogen? Trends in Plant Science, 5(7): 304–308.
Hossain M F, Chen W, Zhang Y. 2015. Bulk density of mineral and organic soils in the Canada’s arctic and sub-arctic. Information Processing in Agriculture, 2(3–4): 183–190.
Hu C, Li F, Xie Y H, et al. 2018. Soil carbon, nitrogen, and phosphorus stoichiometry of three dominant plant communities distributed along a small-scale elevation gradient in the East Dongting Lake. Physics and Chemistry of the Earth, Parts A/B/C, 103: 28–34, doi: 10.1016/j.pce.2017.04.001.
Jing W L, Feng M, Yang Y P. 2013. A statistical downscaling approach of NCEP/NCAR reanalysis temperature data. Journal of Geo-information Science, 15(6): 819–828. (in Chinese)
Jobbágy E G, Jackson R B. 2000. The vertical distribution of soil organic carbon and its relation to climate and vegetation. Ecological Applications, 10(2): 423–436.
Kielland K. 1994. Amino acid absorption by arctic plants: implications for plant nutrition and nitrogen cycling. Ecology, 75(8): 2373–2383.
Lal R. 2004. Carbon sequestration in dryland ecosystems. Environmental Management, 33(4): 528–544.
Lemenih M, Itanna F. 2004. Soil carbon stocks and turnovers in various vegetation types and arable lands along an elevation gradient in southern Ethiopia. Geoderma, 123(1–2): 177–188.
Lepš J, Šmilauer P. 1988. Multivariate Analysis of Ecological Data Using CANOCO. Cambridge: Cambridge University Press, 166–169.
Li X B, Bai Y X, Wen W Y, et al. 2017. Effects of grassland degradation and precipitation on carbon storage distributions in a semi-arid temperate grassland of Inner Mongolia, China. Acta Oecologica, 85: 44–52.
Li Y Y, Dong S K, Wen L, et al. 2014. Soil carbon and nitrogen pools and their relationship to plant and soil dynamics of degraded and artificially restored grasslands of the Qinghai–Tibetan Plateau. Geoderma, 213: 178–184.
Lister T W, Burger J A, Patterson S C. 2004. Role of vegetation in mitigating soil quality impacted by forest harvesting. Soil Science Society of America Journal, 68(1): 263–271.
Liu W J, Chen S Y, Qin X, et al. 2012. Storage, patterns, and control of soil organic carbon and nitrogen in the northeastern margin of the Qinghai–Tibetan Plateau. Environmental Research Letters, 7(3): 035401.
Liu Z J, Yang X G, Chen F, et al. 2013. The effects of past climate change on the northern limits of maize planting in Northeast China. Climatic Change, 117(4): 891–902.
Liu Z P, Shao M A, Wang Y Q. 2013. Spatial patterns of soil total nitrogen and soil total phosphorus across the entire Loess Plateau region of China. Geoderma, 197–198: 67–78.
Motavalli P P, Palm C A, Parton W J, et al. 1995. Soil pH and organic C dynamics in tropical forest soils: evidence from laboratory and simulation studies. Soil Biology and Biochemistry, 27(12): 1589–1599.
Muñoz-Rojas M, Abd-Elmabod S K, Zavala L M, et al. 2017. Climate change impacts on soil organic carbon stocks of Mediterranean agricultural areas: a case study in Northern Egypt. Agriculture, Ecosystems & Environment, 238: 142–152.
Ni J. 2002. Carbon storage in grasslands of China. Journal of Arid Environments, 50(2): 205–218.
Njeru C M, Ekesi S, Mohamed S A, et al. 2017. Assessing stock and thresholds detection of soil organic carbon and nitrogen along an altitude gradient in an east Africa mountain ecosystem. Geoderma Regional, 10: 29–38.
Nocita M, Stevens A, Van Wesemael B, et al. 2015. Soil spectroscopy: an opportunity to be seized. Global Change Biology, 21(1): 10–11.
Ou Y, Rousseau A N, Wang L X, et al. 2017. Spatio-temporal patterns of soil organic carbon and pH in relation to environmental factors—A case study of the Black Soil Region of Northeastern China. Agriculture, Ecosystems & Environment, 245: 22–31.
Piao S L, Fang J Y, Zhou L M, et al. 2005. Changes in vegetation net primary productivity from 1982 to 1999 in China. Global Biogeochemical Cycles, 19(2): GB2027.
Piao S L, Fang J Y, Zhou L M, et al. 2007. Changes in biomass carbon stocks in China's grasslands between 1982 and 1999. Global Biogeochemical Cycles, 21(2): B2002, doi: 10.1029/2005GB002634.
Podwojewski P, Poulenard J, Nguyet M L, et al. 2011. Climate and vegetation determine soil organic matter status in an alpine inner-tropical soil catena in the Fan Si Pan Mountain, Vietnam. CATENA, 87(2): 226–239.
Reich P B, Hobbie S E, Lee T, et al. 2006. Nitrogen limitation constrains sustainability of ecosystem response to CO2. Nature, 440(7086): 922–925.
Román-Sánchez A, Vanwalleghem T, Peña A, et al. 2018. Controls on soil carbon storage from topography and vegetation in a rocky, semi-arid landscapes. Geoderma, 311: 159–166, doi: 10.1016/j.geoderma.2016.10.013.
Saikawa E, Prinn R G, Dlugokencky E, et al. 2014. Global and regional emissions estimates for N2O. Atmospheric Chemistry and Physics, 14(9): 4617–4641.
Sakin E. 2012. Organic carbon organic matter and bulk density relationships in arid-semi arid soils in southeast Anatolia region. African Journal of Biotechnology, 11(6): 1373–1377.
Simmons J A, Fernandez I J, Briggs R D, et al. 1996. Forest floor carbon pools and fluxes along a regional climate gradient in Maine, USA. Forest Ecology and Management, 84(1–3): 81–95.
Singh S K, Pandey C B, Sidhu G S, et al. 2011. Concentration and stock of carbon in the soils affected by land uses and climates in the western Himalaya, India. CATENA, 87(1): 78–89.
Six J, Paustian K. 2014. Aggregate-associated soil organic matter as an ecosystem property and a measurement tool. Soil Biology and Biochemistry, 68: A4–A9.
Sun J, Wang H M. 2016. Soil nitrogen and carbon determine the trade-off of the above-and below-ground biomass across alpine grasslands, Tibetan Plateau. Ecological Indicators, 60: 1070–1076.
Tian J H, Boitt G, Black A, et al. 2017. Accumulation and distribution of phosphorus in the soil profile under fertilized grazed pasture. Agriculture, Ecosystems & Environment, 239: 228–235.
Tsai C C, Chen Z S, Kao C I, et al. 2010. Pedogenic development of volcanic ash soils along a climosequence in Northern Taiwan. Geoderma, 156(1–2): 48–59.
Tsui C C, Tsai C C, Chen Z S. 2013. Soil organic carbon stocks in relation to elevation gradients in volcanic ash soils of Taiwan. Geoderma, 209–210: 119–127.
Velichko A A, Borisova О K, Zelikson E M, et al. 2010. Dynamics of carbon storage in phytomass and soil humus in Northern Eurasia during the last climatic macrocycle. Global and Planetary Change, 72(4): 257–264.
Vincent A G, Turner B L, Tanner E V J. 2010. Soil organic phosphorus dynamics following perturbation of litter cycling in a tropical moist forest. European Journal of Soil Science, 61(1): 48–57.
Wang J J, Bai J H, Zhao Q Q, et al. 2016. Five-year changes in soil organic carbon and total nitrogen in coastal wetlands affected by flow-sediment regulation in a Chinese delta. Scientific Reports, 6: 21137.
Wang M, Su Y Z, Yang X, 2014. Spatial distribution of soil organic carbon and its influencing factors in desert grasslands of the Hexi Corridor, Northwest China. PLoS ONE, 9(4): e94652.
Wang T, Kang F F, Cheng X Q, et al. 2017. Spatial variability of organic carbon and total nitrogen in the soils of a subalpine forested catchment at Mt. Taiyue, China. CATENA, 155: 41–52.
Wang Y G, Li Y, Ye X H, et al. 2010. Profile storage of organic/inorganic carbon in soil: from forest to desert. The Science of the Total Environment, 408(8): 1925–1931.
Wynn J G, Bird M I, Vellen L, et al. 2006. Continental-scale measurement of the soil organic carbon pool with climatic, edaphic, and biotic controls. Global Biogeochemical Cycles, 20(1): GB1007, doi: 10.1029/2005GB002576.
Xie Z B, Zhu J G, Liu G, et al. 2007. Soil organic carbon stocks in China and changes from 1980s to 2000s. Global Change Biology, 13(9): 1989–2007.
Yan L, Zhou G S, Wang Y H, et al. 2015. The spatial and temporal dynamics of carbon budget in the alpine grasslands on the Qinghai-Tibetan Plateau using the Terrestrial Ecosystem Model. Journal of Cleaner Production, 107: 195–201.
Yang Y H, Mohammat A, Feng J M, et al. 2007. Storage, patterns and environmental controls of soil organic carbon in China. Biogeochemistry, 84(2): 131–141.
Yang Y H, Fang J Y, Tang Y H, et al. 2008. Storage, patterns and controls of soil organic carbon in the Tibetan grasslands. Global Change Biology, 14(7): 1592–1599.
Yang Y H, Fang J Y, Smith P, et al. 2009. Changes in topsoil carbon stock in the Tibetan grasslands between the 1980s and 2004. Global Change Biology, 15(11): 2723–2729.
Yang Y H, Fang J Y, Guo D L, et al. 2010. Vertical patterns of soil carbon, nitrogen and carbon: nitrogen stoichiometry in Tibetan grasslands. Biogeosciences Discussions, 7(1): 1–24.
Yimer F, Ledin S, Abdelkadir A. 2006. Soil organic carbon and total nitrogen stocks as affected by topographic aspect and vegetation in the Bale Mountains, Ethiopia. Geoderma, 135: 335–344.
Yu P J, Li Q, Jia H T, et al. 2013. Carbon stocks and storage potential as affected by vegetation in the Songnen grassland of northeast China. Quaternary International, 306: 114–120.
Zhang C, Liu G B, Xue S, et al. 2013. Soil organic carbon and total nitrogen storage as affected by land use in a small watershed of the Loess Plateau, China. European Journal of Soil Biology, 54: 16–24.
Zhang X S. 2001. Ecological restoration and sustainable agricultural paradigm of mountain-oasis-ecotone-desert system in the north of the Tianshan Mountains. Acta Botanica Sinica, 43(12): 1294–1299. (in Chinese)
Zhang Z S, Craft C B, Xue Z S, et al. 2016. Regulating effects of climate, net primary productivity, and nitrogen on carbon sequestration rates in temperate wetlands, Northeast China. Ecological Indicators, 70: 114–124.
Zhao Q Q, Bai J H, Liu Q, et al. 2016. Spatial and seasonal variations of soil carbon and nitrogen content and stock in a tidal salt marsh with Tamarix chinensis, China. Wetlands, 36(Suppl.): 145–152.
Zhou G S, Wang Y H, Jiang Y L, et al. 2002. Carbon balance along the Northeast China Transect (NECT-IGBP). Science in China (Series C), 45(Suppl.): 18–29.
This research was supported by the National Science and Technology Support Program of China (2014BAC15B04). The authors are grateful to all of the staff at the Fuyun Grassland Ecology Station for their assistance in site selection and field measurements. We would also like to thank GUO Jia for his helpful comments on this manuscript.
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Bi, X., Li, B., Nan, B. et al. Characteristics of soil organic carbon and total nitrogen under various grassland types along a transect in a mountain-basin system in Xinjiang, China. J. Arid Land 10, 612–627 (2018). https://doi.org/10.1007/s40333-018-0006-1
- mountain-basin system
- grassland types
- soil organic carbon
- soil total nitrogen
- meteorological factors
- soil properties