[1] Jiang X B. Preliminary study on computing the area of mountain regions in China based on geographic information system. Journal of Mountain Science, 2008, 26(2): 129-136. [2] Luo P, Xu J C, Pei S J. A discussion on the conflicts between grassland animal husbandry and natural conservation in Northwestern Yunnan. Grassland of China, 2001, 23(3): 1-5. [3] Wu N. Traditional utilization of rangelands in Western Sichuan——Disputation on pastoral nomadism. Journal of Mountain Science, 2004, 22(6): 641-647. [4] Liu J X, Gong Y B, Zuo Q, et al . A review of mountain grazing-paths and vegetation spatial heterogeneity. Acta Prataculturae Sinica, 2012, 21(1): 254-261. [5] Bao W K, Cheng Q H, Liu Z G. Degradation of mountain ecosystem in the upper reaches of Mingjiang river And Coutermeasures for their rehabilitation and reconstruction. Resources and Environment In the Yangtze Valley, 1995, 4(3): 277-282. [6] Liu Q, Qiao Y K, Wu N, et al . Mechanism of ecological degradation of mountain ecosystem in the upper reaches of the Minjiang river: Effects of keystone populations. Resources and Environment in the Yangtze Valley, 2002, 11(3): 274-278. [7] Liu J X, Gong Y B, Zheng J K, et al . Relationships between grazing-path and Berberis aggregate population characteristics in upper reaches of Minjiang River, Southwest China. Chinese Journal of Applied Ecology, 2013, 24(1): 63-70. [8] Wan L Q, Chen W W, Li X L, et al . Effects of grazing intensities on foraging behaviors of goats on a cultivated pasture of Southern China. Acta Prataculturae Sinica, 2013, 22(4): 275-282. [9] Zhang T, Weng Y, Yao F J, et al . Effect of grazing tensity on ecological stoichometry of Deyeuxia angustifolia and meadow soil. Acta Prataculturae Sinica, 2014, 23(2): 20-28. [10] Wang X, Song N P, Yang X G, et al . The response of grassland plant diversity to soil factors under grazing disturbance. Acta Prataculturae Sinica, 2013, 22(5): 27-36. [11] Guan W B, Ye M S, Ma K M, et al . Vegetation classification and the main types of vegetation of the Dry Valley of Minjiang River. Journal of Mountain Science, 2004, 22(6): 679-686. [12] Shang Z H, Yao A X, Long R J. Spatial heterogeneity of the north slope’s plant communities in the mountain desert grassland of the arid region. Acta Ecologica Sinica, 2005, 25(2): 312-318. [13] Yang J, Liu L J, Ge J P, et al . Characteristics of canopy gap disturbance In Wolong Nature Reserve. Acta Phytoecologica Sinica, 2004, 28(5): 723-726. [14] Lou A R, Niu C J. Experimental Guidance of Fundamental Ecology[M]. Beijing: Higher Education Press, 2002. [15] Chen X, Bu Z J, Wang S Z, et al . Interspecific relationships of bryophytes and vascular plants in two habitats of Hani Peatland in Changbai Mountain. Acta Prataculturae Sinica, 2009, 18(2): 108-114. [16] He N P, Wu L, Zhou D W. Effect of grazing on grassland under protective plantation in the ecotone between agriculture and animal husbandry of Songnen plain. Chinese Journal of Applied Ecology, 2004, 15(5): 795-798. [17] Hou F J, Ren J Z. Evaluation on trampling of grazed Gansu wapiti ( Cervus elap huskansuensis Pocock) and its effects on soil property in winter grazing land. Acta Ecologica Sinica, 2003, 23(3): 486-495. [18] Lin H L, Hou F J, Ren J Z. Evaluation of indicators of grazing trampling intensity. Acta Prataculturae Sinica, 2008, 17(1): 85-92. [19] Gower S T. Are horses responsible for introducing non-native plants along forest trails in the eastern United States. Forest Ecology and Management, 2008, 256(5): 997-1003. [20] Wan L Q. Study on Grazing and Utilization of Goats on a Shrubland in the Three Gorges Region of Yangtz River[D]. Beijing: the Chinese Academy of Agricultural Sciences, 2001. [21] Yang L M, Han M, Li J D. Division on degenerate successional stages of main grassland communities for grazing in the Songnen Plain of China. Acta Agrestia Sinca,1996, 4(4): 281-287. [22] Dumme T, Western D, Dietrich W E. Effects of cattle trampling on vegetation, infiltration, and erosion in a tropical rangeland. Journal of Arid Environments, 2011, 75(1): 58-69. [23] Wallis De Vries M F, Laca E A, Demment M W. The importance of scale of patchiness for selectivity in grazing herbivores. Oecologia, 1999, 121: 355-363. [24] Sutter G C, Davis S K, Duncan D C. Grassland songbird abundance along roads and trails in southern Saskatchewan. Journal of Field Ornithology, 2000, 71(1): 110-116. [25] Mao W, Li Y L, Zhao X Y, et al . Effect of Caragana microphylla on leaf traits of Setarria viridis in Horqin sandy land. Acta Prataculturae Sinica, 2009, 18(6): 144-150. [26] Zhao H L, Su Y Z, Zhang H, et al . Multiple effects of shrub on soil properties and understory vegetation in Horqin sand land, Inner Mongolia. Journal of Desert Research, 2007, 27(3): 385-390. [1] 江晓波. 中国山地范围界定的初步意见. 山地学报, 2008, 26(2): 129-136. [2] 罗鹏, 许建初, 裴盛基. 滇西北地区草地畜牧业与自然保护矛盾初探. 中国草地, 2001, 23(3):1-5. [3] 吴宁. 川西草地的传统利用——关于游牧的辩驳. 山地学报, 2004, 22(6): 641-647. [4] 刘金鑫, 宫渊波, 左琴, 等. 山地牧道与植被空间异质性研究评述. 草业学报, 2012, 21(1): 254-261. [5] 包维楷, 陈庆恒, 刘照光. 岷江上游山地生态系统的退化及其恢复与重建对策. 长江流域资源与环境, 1995, 4(3): 277-282. [6] 刘庆, 乔永康, 吴宁, 等. 岷江上游山地生态系统退化机理研究的核心——关键种群的作用. 长江流域资源与环境, 2002, 11(3): 274-278. [7] 刘金鑫, 宫渊波, 郑江坤, 等. 岷江上游山地牧道与锥花小檗种群特征的关系. 应用生态学报, 2013, 24(1): 63-70. [8] 万里强, 陈玮玮, 李向林, 等. 放牧强度对山羊采食行为的影响. 草业学报, 2013, 22(4): 275-282. [9] 张婷, 翁月, 姚凤娇, 等. 放牧强度对草甸植物小叶章及土壤化学计量比的影响. 草业学报, 2014, 23(2): 20-28. [10] 王兴, 宋乃平, 杨新国, 等. 放牧扰动下草地植物多样性对土壤因子的响应. 草业学报, 2013, 22(5): 27-36. [11] 关文彬, 冶民生, 马克明, 等. 岷江干旱河谷植被分类及其主要类型. 山地学报, 2004, 22(6): 679-686. [12] 尚占环, 姚爱兴, 龙瑞军. 干旱地区山地荒漠草原阴坡植物群落空间异质性. 生态学报, 2005, 25(2): 312-318. [13] 杨娟, 刘丽娟, 葛剑平, 等. 卧龙自然保护区林隙干扰特征. 植物生态学报, 2004, 28(5): 723-726. [14] 娄安如, 牛翠娟. 基础生态学实验指导[M]. 北京: 高等教育出版社, 2002. [15] 陈旭, 卜兆君, 王升忠, 等. 长白山哈泥泥炭地两种生境苔藓与维管植物种间联结. 草业学报, 2009, 18(2): 108-114. [16] 何念鹏, 吴泠, 周道玮. 放牧对松嫩平原农牧交错区防护林下草地的影响. 应用生态学报, 2004, 15(5): 795-798. [17] 侯扶江, 任继周. 甘肃马鹿冬季放牧的践踏作用及其对土壤理化性质影响的评价. 生态学报, 2003, 23(3): 486-495. [18] 林慧龙, 侯扶江, 任继周. 放牧家畜的践踏强度指标探讨. 草业学报, 2008, 17(1):85-92. [20] 万里强. 长江三峡地区灌丛草地山羊放牧利用研究[D]. 北京: 中国农业科学院, 2001. [21] 杨利民, 韩梅, 李建东. 松嫩平原主要草地群落放牧退化演替阶段的划分. 草地学报, 1996, 4(4): 281-287. [25] 毛伟, 李玉霖, 赵学勇, 等. 科尔沁沙地灌丛内外草本植物狗尾草叶形状的比较研究. 草业学报, 2009, 18(6): 144-150. [26] 赵哈林, 苏永中, 张华, 等. 灌丛对流动沙地土壤特性和草本植物的影响. 中国沙漠, 2007, 27(3): 385-390. |