Effects of exogenous carbon and nitrogen addition on the key process of carbon cycle in grassland ecosystem: a review
HE Yun-long1,2, QI Yu-chun1, PENG Qin1, DONG Yun-she1, YAN Zhong-qing1,2, Li Zhao-lin1,2
1. Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China; 2. Graduate University of Chinese Academy of Sciences, Beijing 100049, China
Abstract:Human activities result in a large amount of active nitrogen (N) depositing from atmosphere to biosphere.Then N deposition has inconsistently influenced in the key process of carbon (C) cycle in the grassland ecosystem.In this paper,we review the processes of C cycle (plant photosynthesis,aboveground and belowground biomass,soil respiration,litter decomposition and soil organic carbon content) responding to different N-addition levels and years in the grassland ecosystem,and analyze possible the causes of various in these processes.Simultaneously,we analysis that these processes respond to exogenous C addition.Furthermore,we analysis the mechanisms of microbes driving these processes under exogenous C and N addition.C availability is one of most controllers in the key processes of C cycle in grassland ecosystems.This paper throughout the above these works strongly emphasizes that conducting the related research will play important roles in scientific managing resources and increasing soil C sink in China.
贺云龙, 齐玉春, 彭琴, 董云社, 闫钟清, 李兆林. 外源碳氮添加对草地碳循环关键过程的影响[J]. 中国环境科学, 2018, 38(3): 1133-1141.
HE Yun-long, QI Yu-chun, PENG Qin, DONG Yun-she, YAN Zhong-qing, Li Zhao-lin. Effects of exogenous carbon and nitrogen addition on the key process of carbon cycle in grassland ecosystem: a review. CHINA ENVIRONMENTAL SCIENCECE, 2018, 38(3): 1133-1141.
Galloway J N, Townsend A R, Erisman J W, et al. Transformation of the nitrogen cycle:recent trends, questions, and potential solutions[J]. Science, 2008,320:889-892.
[2]
Harpole W S, Potts D L, Suding K N. Ecosystem responses to water and nitrogen amendment in a California grassland[J]. Global Change Biology, 2007,13(11):2341-2348.
[3]
LeBauer D S, Treseder K K. Nitrogen limitation of net primary productivity in terrestrial ecosystems is globally distributed[J]. Ecology, 2008,89(2):371-379.
[4]
Li W B, Jin C J, Guan D X, et al. The effects of simulated nitrogen deposition on plant root traits:a meta-analysis[J]. Soil Biology and Biochemistry, 2015,82:112-118.
[5]
Xu W H, Wan S Q. Water-and plant-mediated responses of soil respiration to topography, fire, and nitrogen fertilization in a semiarid grassland in northern China[J]. Soil Biology and Biochemistry, 2008,40:679-687.
[6]
Yue K, Peng Y, Peng C H, et al. Stimulation of terrestrial ecosystem carbon storage by nitrogen addition:a meta-analysis[J]. Scientific Reports, 2016,6:19895-19904.
[7]
Treseder K K. Nitrogen additions and microbial biomass:a meta-analysis of ecosystem studies[J]. Ecology Letters, 2008, 11(10):1111-1120.
[8]
Phillips R P, Fahey T J. Fertilization effects on fineroot biomass, rhizosphere microbes and respiratory fluxes in hardwood forest soils[J]. New Phytologist, 2007,176(3):655-664.
Luo Q P, Gong J R, Yang L L, et al. Impacts of nitrogen addition on the carbon balance in a temperate semiarid grassland ecosystem[J]. Biology and Fertility of Soils, 2017,53:911-927.
[11]
Peng Q, Dong Y S, Qi Y C, et al. Effects of nitrogen fertilization on soil respiration in temperate grassland in Inner Mongolia, China[J]. Environmental Earth Sciences, 2011,62(6):1163-1171.
[12]
Qi Y C, Liu X C, Dong Y S, et al. Differential responses of short-term soil respiration dynamics to the experimental addition of nitrogen and water in the temperate semi-arid steppe of Inner Mongolia, China[J]. Journal of Environmental Sciences-China, 2014,26(4):834-845.
[13]
Janssens I A, Dieleman W, Luyssaert S, et al. Reduction of forest soil respiration in response to nitrogen deposition[J]. Nature Geoscience, 2010,3(5):315-322.
[14]
Zhang C P, Niu D C, Hall S J, et al. Effects of simulated nitrogen deposition on soil respiration components and their temperature sensitivities in a semiarid grassland[J]. Soil Biology and Biochemistry, 2014,75:113-123.
[15]
Li Y, Liu Y H, Wu S M, et al. Microbial properties explain temporal variation in soil respiration in a grassland subjected to nitrogen addition[J]. Scientific Reports, 2015,5:18496-18506.
[16]
Yan L M, Chen S P, Huang J H, et al. Differential responses of auto-and heterotrophic soil respiration to water and nitrogen addition in a semiarid temperate steppe[J]. Global Change Biology, 2010,16(8):2345-2357.
[17]
Eberwein J R, Oikawa P Y, Allsman L A, et al. Carbon availability regulates soil respiration response to nitrogen and temperature[J]. Soil Biology and Biochemistry, 2015,88:158-164.
[18]
Liang L L, Grantz D A, Jenerette G D. Multivariate regulation of soil CO2 and N2O pulse emissions from agricultural soils[J]. Global change biology, 2016,22(3):1286-1298.
[19]
Jiang X Y, Haddix M L, Cotrufo M F. Interactions between biochar and soil organic carbon decomposition:effects of nitrogen and low molecular weight carbon compound addition[J]. Soil Biology and Biochemistry, 2016,100:92-101.
[20]
Liu C, Lu M, Cui J, et al. Effects of straw carbon input on carbon dynamics in agricultural soils:a meta-analysis[J]. Global Change Biology, 2014,20(5):1366-1381.
Lu C Q, Tian H Q, Liu M L, et al. Effect of nitrogen deposition on China's terrestrial carbon uptake in the context of multifactor environmental changes[J]. Ecological Applications, 2012,22(1):53-75.
Zhang L, Yang Y X, Zhan X Y, et al. Responses of a dominant temperate grassland plant (Leymus chinensis) to elevated carbon dioxide and nitrogen addition in China[J]. Journal of Environmental Quality, 2010,39(1):251-259.
Niu S L, Zhang Y F, Yuan Z Y, et al. Effects of interspecific competition and nitrogen seasonality on the photosynthetic characteristics of C3 and C4 grasses[J]. Environmental and Experimental Botany, 2006,57(3):270-277.
[32]
Zhang Y F, Niu S L, Xu W H, et al. Species-specific response of photosynthesis to burning and nitrogen fertilization[J]. Journal of Integrative Plant Biology, 2008,50(5):565-574.
[33]
Nakaji T, Fukami M, Dokiya Y, et al. Effects of high nitrogen load on growth, photosynthesis and nutrient status of Cryptomeria japonica and Pinus densiflora seedlings[J]. Trees, 2001,15(8):453-461.
Drake J E, Gallet-Budynek A, Hofmockel KS, et al. Increases in the flux of carbon belowground stimulate nitrogen uptake and sustain the long-term enhancement of forest productivity under elevated CO2[J]. Ecology Letters, 2011,14(4):349-357.
[39]
Lu M, Zhou X H, Luo Y Q, et al. Minor stimulation of soil carbon storage by nitrogen addition:a meta-analysis[J]. Agriculture Ecosystems and Environment, 2011,140(1/2):234-244.
[40]
Ryals R, Silver W L. Effects of organic matter amendments on net primary productivity and greenhouse gas emissions in annual grasslands[J]. Ecological Applications, 2013,23(1):46-59.
[41]
Dornbush M E. Grasses, litter, and their interaction affect microbial biomass and soil enzyme activity[J]. Soil Biology and Biochemistry, 2007,39(9):2241-2249.
[42]
Torok K, Szitar K, Halassy M, et al. Long-term outcome of nitrogen immobilization to restore endemic sand grassland in Hungary[J]. Journal of Applied Ecology, 2014,51(3):756-765.
[43]
Liu L L, Greaver T L. A global perspective on belowground carbon dynamics under nitrogen enrichment[J]. Ecology Letters, 2010,13(7):819-828.
[44]
Nguyen C. Rhizodeposition of organic C by plants:mechanisms and controls[J]. Agronomie, 2003,23(5/6):375-396.
Fang H J, Cheng S L, Yu G R, et al. Responses of CO2 efflux from an alpine meadow soil on the Qinghai Tibetan Plateau to multi-form and low-level N addition[J]. Plant and Soil, 2012, 351(1/2):177-190.
[47]
Treseder K K. A meta-analysis of mycorrhizal responses to nitrogen, phosphorus, and atmospheric CO2 in field studies[J]. New Phytologist, 2004,164(2):347-355.
[48]
Luo Y Q, Zhao X Y, Andren O, et al. Artificial root exudates and soil organic carbon mineralization in a degraded sandy grassland in northern China[J]. Journal of Arid Land, 2014,6(4):423-431.
[49]
Kuzyakov Y, Bol R. Sources and mechanisms of priming effect induced in two grassland soils amended with slurry and sugar[J]. Soil Biology and Biochemistry, 2006,38(4):747-758.
[50]
Blagodatskaya E, Yuyukina T, Blagodatsky S, et al. Three-source-partitioning of microbial biomass and of CO2 efflux from soil to evaluate mechanisms of priming effects[J]. Soil Biology and Biochemistry, 2011,43(4):778-786.
[51]
Blagodatskaya E V, Blagodatsky S A, Anderson T H, et al. Contrasting effects of glucose, living roots and maize straw on microbial growth kinetics and substrate availability in soil[J]. European Journal of Soil Science, 2009,60(2):186-197.
[52]
Carreiro M M, Sinsabaugh R L, Repert D A, et al. Microbial enzyme shifts explain litter decay responses to simulated nitrogen deposition[J]. Ecology, 2000,81(9):2359-2365.
[53]
Peng Q, Qi Y C, Dong Y S, et al. Litter decomposition and the C and N dynamics as affected by N additions in a semi-arid temperate steppe, Inner Mongolia of China[J]. Journal of Arid Land, 2014,6(4):432-444.
Rahman M M, Tsukamoto J, Rahman M M, et al. Lignin and its effects on litter decomposition in forest ecosystems[J]. Chemistry and Ecology, 2013,29(6):540-553.
[56]
Liu J, Wu N N, Wang H, et al. Nitrogen addition affects chemical compositions of plant tissues, litter and soil organic matter[J]. Ecology, 2016,97(7):1796-1806.
[57]
Fang X, Zhao L, Zhou G Y, et al. Increased litter input increases litter decomposition and soil respiration but has minor effects on soil organic carbon in subtropical forests[J]. Plant and Soil, 2015, 392(1/2):139-153.
[58]
Barantal S, Schimann H, Fromin N, Hättenschwiler S. Nutrient and Carbon Limitation on Decomposition in an Amazonian Moist Forest[J]. Ecosystems, 2012,15(7):1039-1052.
[59]
Kuzyakov Y, Hill P W, Jones D L. Root exudate components change litter decomposition in a simulated rhizosphere depending on temperature[J]. Plant and Soil, 2007,290(1/2):293-305.
[60]
Riggs C E, Hobbie S E, Bach E M, et al. Nitrogen addition changes grassland soil organic matter decomposition[J]. Biogeochemistry, 2015,125(2):203-219.
[61]
Fang H J, Cheng S L, Yu G R, et al. Nitrogen deposition impacts on the amount and stability of soil organic matter in an alpine meadow ecosystem depend on the form and rate of applied nitrogen[J]. European Journal of Soil Science, 2014,65(4):510-519.
[62]
Riggs C E, Hobbie S E. Mechanisms driving the soil organic matter decomposition response to nitrogen enrichment in grassland soils[J]. Soil Biology and Biochemistry, 2016,99:54-65.
[63]
Jian S Y, Li J W, Chen J, et al. Soil extracellular enzyme activities, soil carbon and nitrogen storage under nitrogen fertilization:a meta-analysis[J]. Soil Biology and Biochemistry, 2016,101:32-43.
[64]
Fontaine S, Bardoux G, Abbadie L, et al. Carbon input to soil may decrease soil carbon content[J]. Ecology Letters, 2004,7(4):314-320.
[65]
Ryals R, Kaiser M, Torn M S, et al. Impacts of organic matter amendments on carbon and nitrogen dynamics in grassland soils[J]. Soil Biology and Biochemistry, 2014,68:52-61.
[66]
Diochon A, Gregorich E G, Kellman L, et al. Greater soil C inputs accelerate loss of C in cropping systems with low N input[J]. Plant and Soil, 2016,400(1/2):93-105.
[67]
Nguyen T T, Marschner P. Soil respiration, microbial biomass and nutrient availability in soil after repeated addition of low and high C/N plant residues[J]. Biology and Fertility of Soils, 2016,52(2):165-176.
[68]
Hartley I P, Hopkins D W, Sommerkorn M, et al. The response of organic matter mineralisation to nutrient and substrate additions in sub-arctic soils[J]. Soil Biology and Biochemistry, 2010,42(1):92-100.
[69]
Blagodatskaya E, Kuzyakov Y. Mechanisms of real and apparent priming effects and their dependence on soil microbial biomass and community structure:critical review[J]. Biology and Fertility of Soils, 2008,45(2):115-131.
[70]
Holden S R, Treseder K K. A meta-analysis of soil microbial biomass responses to forest disturbances[J]. Frontiers in Microbiology, 2013,4:17.
[71]
Chen D M, Lan Z C, Hu S J, et al. Effects of nitrogen enrichment on belowground communities in grassland:Relative role of soil nitrogen availability vs. soil acidification[J]. Soil Biology and Biochemistry, 2015,89:99-108.
[72]
Alster C J, German D P, Lu Y, et al. Microbial enzymatic responses to drought and to nitrogen addition in a southern California grassland[J]. Soil Biology and Biochemistry, 2013, 64:68-79.
[73]
Bach E M, Hofmockel K S. Coupled carbon and nitrogen inputs increase microbial biomass and activity in prairie bioenergy systems[J]. Ecosystems, 2015,18(3):417-427.
[74]
Murugan R, Loges R, Taube F, et al. Changes in soil microbial biomass and residual indices as ecological indicators of land use change in temperate permanent grassland[J]. Microbial Ecology, 2014,67(4):907-918.
[75]
Nottingham A T, Griffiths H, Chamberlain P M, et al. Soil priming by sugar and leaf-litter substrates:A link to microbial groups[J]. Applied Soil Ecology, 2009,42(3):183-190.
[76]
Zeglin L, Stursova M, Sinsabaugh R, et al. Microbial responses to nitrogen addition in three contrasting grassland ecosystems[J]. Oecologia, 2007,154(2):349-359.
[77]
Tian X F, Hu H W, Ding Q, et al. Influence of nitrogen fertilization on soil ammonia oxidizer and denitrifier abundance, microbial biomass, and enzyme activities in an alpine meadow[J]. Biology and Fertility of Soils, 2014,50(4):703-713.
[78]
Farrer E C, Herman D J, Franzova E, et al. Nitrogen deposition, plant carbon allocation, and soil microbes:changing interactions due to enrichment[J]. American Journal of Botany, 2013,100(7):1458-1470.
[79]
Sun L J, Qi Y C, Dong Y S, et al. Interactions of water and nitrogen addition on soil microbial community composition and functional diversity depending on the inter-annual precipitation in a Chinese steppe[J]. Journal of Integrative Agriculture, 2015, 14(4):788-799.
[80]
Docherty K, Balser T, Bohannan B M, et al. Soil microbial responses to fire and interacting global change factors in a California annual grassland[J]. Biogeochemistry, 2012,109(1-3):63-83.
[81]
Zeng J, Liu X J, Song L, et al. Nitrogen fertilization directly affects soil bacterial diversity and indirectly affects bacterial community composition[J]. Soil Biology and Biochemistry, 2016,92:41-49.
[82]
Carey C J, Beman J M, Eviner V T, et al. Soil microbial community structure is unaltered by plant invasion, vegetation clipping, and nitrogen fertilization in experimental semi-arid grasslands[J]. Frontiers in Microbiology, 2015,6:14.
[83]
Hamer U, Potthast K, Makeschin F. Urea fertilisation affected soil organic matter dynamics and microbial community structure in pasture soils of Southern Ecuador[J]. Applied Soil Ecology, 2009,43(2/3):226-233.
[84]
Paterson E, Sim A. Soil-specific response functions of organic matter mineralization to the availability of labile carbon[J]. Global Change Biology, 2013,19(5):1562-1571.
[85]
Lemanski K, Scheu S. Incorporation of 13C labelled glucose into soil microorganisms of grassland:effects of fertilizer addition and plant functional group composition[J]. Soil Biology and Biochemistry, 2014,69:38-45.
[86]
Reischke S, Rousk J, Bååth E. The effects of glucose loading rates on bacterial and fungal growth in soil[J]. Soil Biology and Biochemistry, 2014,70:88-95.
[87]
German D P, Weintraub M N, Grandy A S, et al. Optimization of hydrolytic and oxidative enzyme methods for ecosystem studies[J]. Soil Biology and Biochemistry, 2011,43:1387-1397.
[88]
Sinsabaugh R L, Lauber C L, Weintraub M N, et al. Stoichiometry of soil enzyme activity at global scale[J]. Ecology Letters, 2008,11(11):1252-1264.
[89]
Veres Z, Kotroczó Z, Fekete I, et al. Soil extracellular enzyme activities are sensitive indicators of detrital inputs and carbon availability[J]. Applied Soil Ecology, 2015,92:18-23.
[90]
Gavrichkova O, Moscatelli M C, Kuzyakov Y, et al. Influence of defoliation on CO2 efflux from soil and microbial activity in a Mediterranean grassland[J]. Agriculture, Ecosystems and Environment, 2010,136(1/2):87-96.