Hao TX, Song L, Goulding K et al (2018) Cumulative and partially recoverable impacts of nitrogen
addition on a temperate steppe. Ecol Appl 28:237–248
Hautier Y, Niklaus PA, Hector A (2009) Competition for light causes plant biodiversity loss after
eutrophication. Science 324:636–638
Hautier Y, Tilman D, Isbell F et al (2015) Anthropogenic environmental changes affect ecosystem
stability via biodiversity. Science 348:336–340
Hobbie SE (2015) Plant species effects on nutrient cycling: revisiting litter feedbacks. Trends Ecol
Evol 30:357–363
Hou S, Yin J, Sistla S et al (2017) Long-term mowing did not alter the impacts of nitrogen
deposition on litter quality in a temperate steppe. Ecol Eng 102:404–410
Humbert J, Dwyer J, Andrey A et al (2016) Impacts of nitrogen addition on plant biodiversity in
mountain grasslands depend on dose, application duration and climate: a systematic review.
Glob Chang Biol 22:110–120
Isbell F, Tilman D, Polasky S et al (2013) Low biodiversity state persists two decades after cessation
of nutrient enrichment. Ecol Lett 16:454–460
Jiang C, Yu G, Fang H et al (2010) Short-term effect of increasing nitrogen deposition on CO 2 , CH 4
and N 2 O fluxes in an alpine meadow on the Qinhai-Tibetan Plateau, China. Atmos Environ
44:2920–2926
Jing X, Chen X, Tang M et al (2017) Nitrogen deposition has minor effect on soil extracellular
enzyme activities in six Chinese forests. Sci Total Environ 607–608:806–815
Kang L, Han X, Zhang Z et al (2007) Grassland ecosystems in China: review of current knowledge
and research advancement. Philos Trans R Soc A 362:997–1008
Lan Z, Bai Y (2012) Testing mechanisms of N-enrichment-induced species loss in a semiarid Inner
Mongolia grassland: critical thresholds and implications for long-term ecosystem responses.
Philos Trans R Soc A 367:3125–3134
Lan Z, Jenerette G, Zhan S et al (2015) Testing the scaling effects and mechanisms of N-induced
biodiversity loss: evidence from a decade-long grassland experiment. J Ecol 103:750–760
Li K, Gong Y, Song W et al (2012a) Responses of CH 4 , CO 2 and N 2 O fluxes to increasing nitrogen
deposition in alpine grassland of the Tianshan Mountains. Chemosphere 88:140–143
Li K, Gong Y, Song W et al (2012b) No significant nitrous oxide emissions during spring thaw
under grazing and nitrogen fertilization in an alpine grassland. Glob Chang Biol 88:2546–2554
Li K, Liu X, Song L et al (2015) Response of alpine grassland to elevated nitrogen deposition and
water supply in China. Oecologia 177:65–72
Li H, Xu Z, Yang S et al (2016) Responses of soil bacterial communities to nitrogen deposition and
precipitation increment are closely linked with aboveground community variation. Microb Ecol
71:974–989
Li Y, Li Q, Yang J et al (2017) Home-field advantages of litter decomposition increase with
increasing N deposition rates: a litter and soil perspective. Funct Ecol 31:1792–1801
Li W, Zhang R, Liu S et al (2018) Effect of loss of plant functional group and simulated nitrogen
deposition on subalpine ecosystem properties on the Tibetan plateau. Sci Total Environ
631–632:289–297
Lind E, La Pierre K, Seabloom E et al (2017) Increased grassland arthropod production with
mammalian herbivory and eutrophication: a test of mediation pathways. Ecology 98:3022–3033
Liu L, Greaver T (2009) A review of nitrogen enrichment effects on three biogenic GHGs: the CO 2
sink may be largely offset by stimulated N 2 O and CH 4 emissions. Ecol Lett 12:1103–1117
Liu P, Huang J, Sun O et al (2010) Litter decomposition and nutrient release as affected by soil
nitrogen availability and litter quality in a semiarid grassland ecosystem. Oecologia
162:771–780
Liu X, Zhang Y, Han W et al (2013) Enhanced nitrogen deposition over China. Nature
494:459–462
Liu W, Jiang L, Hu S et al (2014) Decoupling of soil microbes and plants with increasing
anthropogenic nitrogen inputs in a temperate steppe. Soil Biol Biochem 72:116–122
Liu J, Wu N, Wang H et al (2016) Nitrogen addition affects chemical compositions of plant tissues,
litter and soil organic matter. Ecology 97:1796–1806
240
X. Lü et al.
addition on a temperate steppe. Ecol Appl 28:237–248
Hautier Y, Niklaus PA, Hector A (2009) Competition for light causes plant biodiversity loss after
eutrophication. Science 324:636–638
Hautier Y, Tilman D, Isbell F et al (2015) Anthropogenic environmental changes affect ecosystem
stability via biodiversity. Science 348:336–340
Hobbie SE (2015) Plant species effects on nutrient cycling: revisiting litter feedbacks. Trends Ecol
Evol 30:357–363
Hou S, Yin J, Sistla S et al (2017) Long-term mowing did not alter the impacts of nitrogen
deposition on litter quality in a temperate steppe. Ecol Eng 102:404–410
Humbert J, Dwyer J, Andrey A et al (2016) Impacts of nitrogen addition on plant biodiversity in
mountain grasslands depend on dose, application duration and climate: a systematic review.
Glob Chang Biol 22:110–120
Isbell F, Tilman D, Polasky S et al (2013) Low biodiversity state persists two decades after cessation
of nutrient enrichment. Ecol Lett 16:454–460
Jiang C, Yu G, Fang H et al (2010) Short-term effect of increasing nitrogen deposition on CO 2 , CH 4
and N 2 O fluxes in an alpine meadow on the Qinhai-Tibetan Plateau, China. Atmos Environ
44:2920–2926
Jing X, Chen X, Tang M et al (2017) Nitrogen deposition has minor effect on soil extracellular
enzyme activities in six Chinese forests. Sci Total Environ 607–608:806–815
Kang L, Han X, Zhang Z et al (2007) Grassland ecosystems in China: review of current knowledge
and research advancement. Philos Trans R Soc A 362:997–1008
Lan Z, Bai Y (2012) Testing mechanisms of N-enrichment-induced species loss in a semiarid Inner
Mongolia grassland: critical thresholds and implications for long-term ecosystem responses.
Philos Trans R Soc A 367:3125–3134
Lan Z, Jenerette G, Zhan S et al (2015) Testing the scaling effects and mechanisms of N-induced
biodiversity loss: evidence from a decade-long grassland experiment. J Ecol 103:750–760
Li K, Gong Y, Song W et al (2012a) Responses of CH 4 , CO 2 and N 2 O fluxes to increasing nitrogen
deposition in alpine grassland of the Tianshan Mountains. Chemosphere 88:140–143
Li K, Gong Y, Song W et al (2012b) No significant nitrous oxide emissions during spring thaw
under grazing and nitrogen fertilization in an alpine grassland. Glob Chang Biol 88:2546–2554
Li K, Liu X, Song L et al (2015) Response of alpine grassland to elevated nitrogen deposition and
water supply in China. Oecologia 177:65–72
Li H, Xu Z, Yang S et al (2016) Responses of soil bacterial communities to nitrogen deposition and
precipitation increment are closely linked with aboveground community variation. Microb Ecol
71:974–989
Li Y, Li Q, Yang J et al (2017) Home-field advantages of litter decomposition increase with
increasing N deposition rates: a litter and soil perspective. Funct Ecol 31:1792–1801
Li W, Zhang R, Liu S et al (2018) Effect of loss of plant functional group and simulated nitrogen
deposition on subalpine ecosystem properties on the Tibetan plateau. Sci Total Environ
631–632:289–297
Lind E, La Pierre K, Seabloom E et al (2017) Increased grassland arthropod production with
mammalian herbivory and eutrophication: a test of mediation pathways. Ecology 98:3022–3033
Liu L, Greaver T (2009) A review of nitrogen enrichment effects on three biogenic GHGs: the CO 2
sink may be largely offset by stimulated N 2 O and CH 4 emissions. Ecol Lett 12:1103–1117
Liu P, Huang J, Sun O et al (2010) Litter decomposition and nutrient release as affected by soil
nitrogen availability and litter quality in a semiarid grassland ecosystem. Oecologia
162:771–780
Liu X, Zhang Y, Han W et al (2013) Enhanced nitrogen deposition over China. Nature
494:459–462
Liu W, Jiang L, Hu S et al (2014) Decoupling of soil microbes and plants with increasing
anthropogenic nitrogen inputs in a temperate steppe. Soil Biol Biochem 72:116–122
Liu J, Wu N, Wang H et al (2016) Nitrogen addition affects chemical compositions of plant tissues,
litter and soil organic matter. Ecology 97:1796–1806
240
X. Lü et al.