[1] Zhan W,Deng X,Wei S,et al. What is the main cause of grassland degradation? A case study of grassland ecosystem service in the middle-south Inner Mongolia[J]. Catena,2017,150:100-107 [2] 李丹,康萨如拉,赵梦颖,等. 内蒙古羊草草原不同退化阶段土壤养分与植物功能性状的关系[J]. 植物生态学报,2016,40(10):991-1002 [3] 王玉辉,何兴元,周广胜. 放牧强度对羊草草原的影响[J]. 草地学报,2002,10(1):45-49 [4] Li X,Liu Z,Wang Z,et al. Pathways of Leymus chinensis Individual Aboveground Biomass Decline in Natural Semiarid Grassland Induced by Overgrazing:A Study at the Plant Functional Trait Scale[J]. Plos One,2015,10(5):e0124443 [5] 乔荣,崔向新,吕新丰,等. 围封禁牧对退化草原土壤性状的影响[J]. 水土保持通报,2014,34(5):162-165 [6] 单贵莲,初晓辉,田青松,等. 典型草原恢复演替过程中土壤性状动态变化研究[J]. 草业学报,2012,21(4):1-9 [7] 刘建国,刘卫国. 微生物介导的氮循环过程研究进展[J]. 草地学报,2018,26(2):277-283 [8] 董兴水,王智慧,黄学茹,等. 硝化作用研究的新发现:单步硝化作用与全程氨氧化微生物[J]. 应用生态学报,2017(1):345-352 [9] 孙翼飞,沈菊培,张翠景,等. 不同放牧强度下土壤氨氧化和反硝化微生物的变化特征[J]. 生态学报,2018,38(8):2874-2883 [10] Meyer A,Focks A,Radl V,et al. Influence of land use intensity on the diversity of ammonia oxidizing bacteria and archaea in soils from grassland ecosystems.[J]. Microbial Ecology,2014,67(1):161-166 [11] Pan H,Xie K,Zhang Q,et al. Archaea and bacteria respectively dominate nitrification in lightly and heavily grazed soil in a grassland system[J]. Biology and Fertility of Soils,2018,54(1):41-54 [12] Huhe,Borjigin S,Buhebaoyin,et al. Microbial Nitrogen-Cycle Gene Abundance in Soil of Cropland Abandoned for Different Periods[J]. Plos One,2016,11(5):e0154697 [13] 陈清. 水分和氮素对内蒙古典型草原初级生产力和物种多样性的影响[D]. 北京:中国农业大学,2007:6-7 [14] Chen Q,Wang Z L,Zou C B,et al. Legacy effects of historical grazing affect the response of vegetation dynamics to water and nitrogen addition in semi-arid steppe[J]. Applied Vegetation Science,2018,21(2):229-239 [15] 徐永刚,宇万太,马强,等. 一种土壤硝化作用潜势测定的方法:中国,CN201010565600.4[P].2012-05-30 [16] 陈永亮. 环境因子对温带典型草原土壤中氨氧化菌和AM真菌群落的影响[D]. 北京:中国科学院大学,2014:27-28 [17] Pan H,Li Y,Guan X,et al. Management practices have a major impact on nitrifier and denitrifier communities in a semiarid grassland ecosystem[J]. Journal of Soils & Sediments,2016,16(3):896-908 [18] Le Roux X,Poly F,Currey P,et al. Effects of aboveground grazing on coupling among nitrifieractivity,abundance and community structure[J]. The ISME Journal,2008,2:221-232 [19] 黄蓉,张金波,钟文辉,等. 土地利用方式对万木林土壤氨氧化微生物丰度的影响[J]. 土壤,2012,44(4):581-587 [20] Zhang L M,Hu H W,Shen J P,et al. Ammonia-oxidizing archaea have more important role than ammonia-oxidizing bacteria in ammonia oxidation of strongly acidic soils[J]. The ISME Journal,2012,6(5):1032-1045 [21] Nicol G W,Leininger S,Schleper C,et al. The influence of soil pH on the diversity,abundance and transcriptional activity of ammonia oxidizing archaea and bacteria[J]. Environmental microbiology,2008,10(11):2966-2978 [22] He J Z,Hu H W,Zhang L M. Current insights into the autotrophic thaumarchaeal ammonia oxidation in acidic soils[J]. Soil Biology and Biochemistry,2012,55:146-154 [23] Di H J,Cameron K C,Shen J P,et al. A lysimeter study of nitrate leaching from grazed grassland as affected by a nitrification inhibitor,dicyandiamide,and relationships with ammonia oxidizing bacteria and archaea[J]. Soil Use & Management,2010,25(4):454-461 [24] Goloran J B,Chen C R,Phillips I R,et al. Pathways of different forms of nitrogen and role of ammonia-oxidizing bacteria in alkaline residue sand from bauxite processing[J]. European Journal of Soil Science,2015,66(5):942-950 [25] Shen J P,Zhang L M,Zhu Y G,et al. Abundance and composition of ammonia-oxidizing bacteria and ammonia-oxidizing archaea communities of an alkaline sandy loam[J]. Environmental microbiology,2008,10(6):1601-1611 [26] Zhu C,Wenliang W,Xiaoming S, et al. Shifts in Abundance and Diversity of Soil Ammonia-Oxidizing Bacteria and Archaea Associated with Land Restoration in a Semi-Arid Ecosystem[J]. PLOS ONE,2015,10(7):e0132879 [27] Zhou X,Li Y,Zhang J, et al. Diversity,abundance and community structure of ammonia-oxidizing archaea and bacteria in riparian sediment of Zhenjiang ancient canal[J]. Ecological Engineering,2016,90:447-458 [28] 苏瑜,王为东. 我国北方四类土壤中氨氧化古菌和氨氧化细菌的活性及对氨氧化的贡献[J]. 环境科学学报,2017,37(9):3519-3527 |