[1] Chen Q Q, Sun X H. Analysis of impact of human activities on grassland environment based on ImPACT identity—A case study of pastoral area of Gannan. Agricultural Research in the Arid Areas, 2010, 28(1): 168-174. 陈强强, 孙小花. 基于ImPACT 等式的人类活动对草原环境的影响以甘南州草原牧区为例. 干旱地区农业研究, 2010, 28(1): 168-174. [2] Sun X T. Human Factors for Maqu Grassland Degeneration[D]. Lanzhou: Lanzhou University, 2010. 孙喜涛. 玛曲草原退化的人为因素分析[D].兰州: 兰州大学, 2010. [3] Wang W Y, Wang Q J, Wang H C. The effect of land management on plant community composition, species diversity, and productivity of alpine Kobersia steppe meadow. Ecological Research, 2006, 21(2): 181-187. [4] Yang D H, Zhao J, Zhang Z H, et al . Research on changes of net primary productivity of grassland vegetation in Gannan pastoral area over the past 10 years. Agricultural Research in the Arid Areas, 2011, 29(1): 257-263. 杨东辉, 赵军, 张智慧, 等. 近10年甘南牧区草地净初级生产力变化研究. 干旱地区农业研究, 2011, 29(1): 257-263. [5] Liu C E, An S Z, Sun Z J, et al . Influence of fencing on Seriphidium transillense pasture in Yili region of Xinjiang. Pratacultural Science, 2008, 25(10): 10-14. 刘长娥, 安沙舟, 孙宗玖, 等. 围栏封育对新疆伊犁绢蒿草地的影响. 草业科学, 2008, 25(10): 10-14. [6] Lu H, Li X G, Yao T, et al . Characteristics of vegetation and soil microorganisms of molehill grassland in an ecologically vulnerable alpine region. Acta Prataculturae Sinica, 2014, 23(5): 214-222. 卢虎, 李显刚, 姚拓, 等. 高寒生态脆弱区“黑土滩”草地植被与土壤微生物数量特征研究. 草业学报,2014, 23(5): 214-222. [7] Schipper L A, Degens B P, Sparling G P, et al . Changes in microbial heterotrophic diversity along five plant successional se-quences. Soil Biology and Biochemistry, 2001, (33): 2093-2103. [8] Bardgett R D, McAlister E. The measurement of soil fungal: Bacterial biomass ratios as an indicator of ecosystem self-regula-tion in temperate meadow grasslands. Biology and Fertility of Soils, 1999, (29): 282-290. [9] Liu R X, He J Z, Zhang L M. Response of nitrification/denitrification and their associated microbes to soil moisture change in paddy soil. Environmental Science, 2014, 35(11): 4275-4283. 刘若萱, 贺纪正, 张丽梅. 稻田土壤不同水分条件下硝化/反硝化作用及其功能微生物的变化特征. 环境科学, 2014, 35(11): 4275-4283. [10] Mekuria W, Veldkamp E, Haile M, et al . Effectiveness of exclosures to restore degraded soils as a result of overgrazing in tigray, Ethiopia. Joural of Arid Environments, 2007, 69: 270-284. [11] Li W, Cao W X, Wei W, et al . Effects of grassland cultivation measures on plant diversity and productivity in the alpine meadow-steppe. Acta Agrestia Sinica, 2015, 23(3): 457-462. 李文, 曹文侠, 魏巍, 等. 培育措施对高寒草甸草原植物多样性和生产力的影响. 草地学报, 2015, 23(3): 457-462. [12] Yu X J, Jing Y Y, Duan C H, et al . Influence of enclosure and grazing intensity on alpine meadow vegetation and soil characteristics in the Eastern Qilian Mountains. Agricultural Research in the Arid Areas, 2015, 33(1): 252-257, 277. 鱼小军, 景媛媛, 段春华, 等. 围栏与不同放牧强度对东祁连山高寒草甸植被和土壤的影响. 干旱地区农业研究, 2015, 33(1): 252-257, 277. [13] Xu T, Qi J, Pu X P, et al . Comparison of the yields and nutrients of seven forage species in Maqu county. Chinese Journal of Grassland, 2012, 34(3): 113-116. 许涛, 祁娟, 蒲小鹏, 等. 甘南玛曲七种主要饲草营养价值比较. 中国草地学报, 2012, 34(3): 113-116. [14] Xu G H, Zheng H Y. Analysis Method of Manual to Soil Microbes[M]. Beijing: Agriculture Press, 1986. 许光辉, 郑洪元. 土壤微生物分析方法手册[M]. 北京: 农业出版社, 1986. [15] Yao H Y, Huang C Y. Soil Microbial Ecology and Experimental Technology[M]. Beijing: Science Press, 2007. 姚槐应, 黄昌勇. 土壤微生物生态学及其实验技术[M]. 北京: 科学出版社, 2007. [16] Li G, Wang L J, Li Y J, et al . Effects of different vegetation restoration patterns on the diversity of soil nitrogen-fixing mi-crobes in Hulunbeier sandy land, Inner Mongolia of North China. Chinese Journal of Applied Ecology, 2013, 24(6): 1639-1646. 李刚, 王丽娟, 李玉洁, 等. 呼伦贝尔沙地不同植被恢复模式对土壤固氮微生物多样性的影响. 应用生态学报, 2013, 24(6): 1639-1646. [17] He F L, Jin H X, Wang S M, et al . Effect of desertification on soil microbial biomass and enzyme activities in Maqu alpine meadow. Acta Ecologica Sinica, 2016, 36(18): 5876-5883. 何芳兰, 金红喜, 王锁民, 等. 沙化对玛曲高寒草甸土壤微生物数量及土壤酶活性的影响. 生态学报, 2016, 36(18):5876-5883. [18] Xiong S P, Che F F, Ma X M, et al . Effects of nitrogen form on the activity of nitrogen bacteria group and inorganic nitrogen in rhizosphere soil of winter wheat. Acta Ecologica Sinica, 2012, 32(16): 5138-5145. 熊淑萍, 车芳芳, 马新明, 等. 氮肥形态对冬小麦根际土壤氮素生理群活性及无机氮含量的影响. 生态学报, 2012, 32(16): 5138-5145. [19] Zhao X D, Zeng Q C, An S S, et al . Ecological stoichiometric characteristics of grassland soils and plant roots relative to enclosure history on the Loess Plateau. Acta Pedologica Sinica, 2016, (6): 1-13. 赵晓单, 曾全超, 安韶山, 等. 黄土高原不同封育年限草地土壤与植物根系的生态化学计量特征. 土壤学报, 2016, (6): 1-13. [20] Guo J X, Zhu T C. Study on numbers and biomass of soil microorganism in aneurolepidium Chinense grassland. Acta Ecologica Sinica, 1997, 17(1): 78-82. 郭继勋, 祝廷成. 羊草草原土壤微生物的数量和生物量. 生态学报, 1997, 17(1): 78-82. [21] Su J Q, Li X R, Yang H T, et al . Effects of fertilization on population density and biomass of herbaceous plants in desert steppe. Journal of Desert Research, 2013, 33(3): 696-702. 苏洁琼, 李新荣, 杨昊天, 等. 施肥对荒漠化草原草本植物种群密度和生物量的影响. 中国沙漠, 2013, 33(3): 696-702. [22] Qiu B, Luo Y J, Du G Z. The effect of fertilizer gradients on vegetation characteristics in alpine meadow. Acta Prataculturae Sinica, 2004, 13(6): 65-68. 邱波, 罗燕江, 杜国祯. 施肥梯度对甘南高寒草甸植被特征的影响. 草业学报, 2004, 13(6): 65-68. [23] Luo D, Wang M J, Zheng S L, et al . Effects of enclosure on soil microbial quantity and enzyme activity in desert steppe. Ecology and Environmental Sciences, 2016, 25(5): 760-767. 罗冬, 王明玖, 郑少龙, 等. 围封对荒漠草原土壤微生物数量及其酶活性的影响. 生态环境学报, 2016, 25(5): 760-767. [24] Qin Y. Effect of Different Land Utilization on Soil Nutrients and Grassland Vegetation in Alpine Meadow[D]. Lanzhou: Lanzhou University, 2010. 秦彧. 不同土地利用方式对玛曲高寒草地土壤养分与植被的影响[D]. 兰州: 兰州大学, 2010. [25] Eviner V T, Chapin III F S. Selective gopher disturbance influences plant species effects on nitrogen cycling. Oikos, 2005, 109(1): 154-166. [26] Tresserras R M C, Alvarez M T S. Role of small mammal disturbances in mountain grasslands. Revista Pastos, 2004, (1): 47-60. [27] Cheng J, Gao Y J. Variability of soil nutrient in enclosed grassland of Yunwu Mountain. Acta Agrestia Sinica, 2007, 15(3): 273-277. 程杰, 高亚军. 云雾山封育草地土壤养分变化特征. 草地学报, 2007, 15(3): 273-277. [28] Liao S X, Ren Y T, Yuan X B, et al . Effects of fencing on contents of soil ammonium nitrogen and nitrate nitrogen in the Loess Plateau, northern China. Pratacultural Science, 2016, 33(6): 1044-1053. 廖圣祥, 任运涛, 袁晓波, 等. 围封对黄土高原草地土壤铵态氮和硝态氮的影响. 草业科学, 2016, 33(6): 1044-1053. [29] Wang C Y, Xiao H G, Liu J, et al . Insights into ecological effects of invasive plants on soil nitrogen cycles. American Journal of Plant Sciences, 2015, 6(1): 34-46. [30] Ding L L, Qi B, Shang Z H, et al . The characteristics of soil microorganism quantity under different alpine grasslands in Eastern Qilian Mountain. Journal of Agro-Environment Science, 2007, 26(6): 2104-2111. 丁玲玲, 祁彪, 尚占环, 等. 东祁连山不同高寒草地型土壤微生物数量分布特征研究. 农业环境科学学报, 2007, 26(6): 2104-2111. [31] Xing X Y, Huang Y M, An S S, et al . Soil nitrogen concentrations and transformations under different vegetation types in forested zones of the Loess Gully Region. Acta Ecologica Sinica, 2013, 33(22): 7181-7189. 邢肖毅, 黄懿梅, 安韶山, 等. 黄土高原沟壑区森林带不同植物群落土壤氮素含量及其转化. 生态学报, 2013, 33(22): 7181-7189. [32] Gu M H, Qu H P, Liu X H, et al . Characteristics of N forms and N-transforming bacteria in paddy soil under different tillage patterns. Chinese Journal of Applied Ecology, 2009, 20(6): 1362-1368. 顾明华, 区惠平, 刘昔辉, 等. 不同耕作方式下稻田土壤的氮素形态及氮素转化菌特征. 应用生态学报, 2009, 20(6): 1362-1368. |