Armstrong A C. 1986. On the fractal dimension of some transient soil properties. Journal of Soil Science, 37(4): 641–652.
Burrough P A. 1983. Multiscale sources of spatial variation in soil. I. The application of fractal concepts to nested levels of soil variation. Journal of Soil Science, 34(3): 577–597.
Chen X H, Duan Z H, Tan M L, et al. 2010. Changes in fractal dimension of soil particle during reversal of desertification-A case study in Yanchi County, Ningxia Hui Autonomous Region. Arid Zone Research, 27(2): 297–302.
Connell J H. 1978. Diversity in tropical rain forests and coral reefs. Science, 199: 1302–1310.
Erdawlat Merey, Adeli Maidi. 1989. Analysis on environmental condition and suitable utilization of grassland in Bayinbulak. Arid Zone Research, 6(Suppl.): 5–21.
Fan Y G, Hu Y K, Li K H, et al. 2008. Effects of different disturbances on the diversity and biomass of the phytobiocoenoses in alpine steppes. Arid Zone Research, 25(4): 531–536.
Gong A D, He Y R. 2001. Study on fractal features of soil structure of degraded soil in dry and hot valley region of Jinsha River. Journal of Soi1 and Water Conservation, 15(3): 112–115.
Gong Y M, Hu Y K, Adeli Maidi, et al. 2010. Alpine grassland community characteristics at the different stages of degenerating succession in Bayanbulak. Journal of Arid Land Resources and Environment, 24(6): 149–152.
Hu Y F, Liu J Y, Zhuang D F, et al. 2005. Fractal dimension of soil particle size distribution under different and use/land coverage. Acta Pedologica Sinica, 42(2): 336–339.
Hu Y K, Li K H, Adeli Maidi, et al. 2007. Plant species diversity of alpine grasslands on southern slope of Tianshan Mountain along altitude gradient. Chinese Journal of Ecology, 26(2): 182–186.
Huang G H, Zhan W H. 2002. Fractal property of soil particle size distribution and its application. Acta Pedologica Sinica, 39(4): 490–497.
Jia X H, Li X R, Zhang J G, et al. 2006. Spatial heterogeneity analysis of fractal dimension of soil particle for Amopiptanhus mongolicus shrub. Acta Ecologica Sinica, 26(9): 2827–2833.
Jiang X L, Zhang W G, Yang Z Y, et al. 2003. The influence of disturbance on community structure and plant diversity of alpine meadow. Acta Botanica Boreali-Occidentalla Sinica, 23(9): 1479–1485.
Li B, Yang C, Lin P. 2004. Ecology. Beijing: Higher Education Press, 121.
Li J L, Zhang J T. 2006. Plant species diversity in the middle part of the Taihang Mountain. Chinese Journal of Applied and Environmental Biology, 12(6): 766–771.
Li K H, Gong Y M, Song W, et al. 2012. No significant nitrous oxide emissions during spring thaw under grazing and nitrogen addition in an alpine grassland. Global Change Biology, 18(8): 2546–2554.
Li Y, Wang Q J, Wang W Y, et al. 2005. Distribution and movement characteristics of soil water and soil salt during evaporation from perforated plastic mulch. Plant Nutrition and Fertilizer Science, 11(2): 187–193.
Liu A X, Gao Z L, Li Y H, et al. 2011. Fractal characteristics research on soil aggregates during highway slope vegetation restoration of different ages in Guanzhong Plain. Journal of Soil and Water Conservation, 25(1): 219–237.
Liu Y Y, Hu Y K, Yu J M, et al. 2008. Study on harmfulness of Pedicularis myriophylla and its control measures. Arid Zone Research, 25(6): 778–782.
Ma K P. 1994. Measurement of biotic community diversity: I. α diversity (Part 1). Biodiversity Science, 2(3): 162–168.
Mandelbrot B B. 1967. How long is the coast of Britain? Statistical self-similarity and fractional dimension. Science, 156: 636–638.
Mandelbrot B B. 1977. Fractals: Form, Chance and Dimension. San Francisco: Freeman, 352.
Mandelbrot B B. 1982. The Fractal Geometry of Nature. San Francisco: Freeman, 269.
Martin M A, Montero E. 2002. Laser diffraction and mutifractal analysis for the characterization of dry soil volume-size distributions. Soil and Tillage Research, 64: 113–123.
Miao C Y, Wang Y F, Wei X, et al. 2007. Fractal characteristics of soil particles in surface layer of black soil. Chinese Journal of Applied Ecology, 18(9): 1987–1993.
Milchunas D G, Sala O E, Lauenroth W K. 1988. A generalized model of the effects of grazing by large herbivores on grassland community structure. The American Naturalist, 132(1): 87–106.
Qiu R H, Yang Y S, Yu X T. 1998. Soil structure characteristics in the plantation of Cunninghamia lanceolata on different rotations. Journal of Beijing Forestry University, 20(4): 6–11.
Ren X, Chu G X, Wang G D, et al. 2009. Fractal dimension characteristics of soil particles in oasis desert Ecotone in southern edge of Junggar Basin. Journal of Desert Research, 29(2): 298–304.
Scott W T, Stephen W W. 1989. Application of fractal mathematics to soil water retention estimation. Soil Science Society of America Journal, 53: 987–996.
Shi Z F, Wang L, Wang J G. 2011. Volume fractal characteristics and significance of soil particles in the Shenmu colliery in north Shanxi province. Arid Zone Research, 28(3): 394–400.
Song Z S. 2006. It is urgent task to recover and comprehensively manage the grassland ecology of Bayingbuluke. Chinese Journal of Agricultural Resources and Regional Planning, 27(1): 21–25.
Tyler S W, Wheatcraft S W. 1992. Fractal scaling of soil particle-size distributions: analysis and linitations. Soil Science Society of America Journal, 56(2): 362–369.
Wang G L, Zhou S L, Zhao Q G. 2005. Volume fractal dimension of soil particles and its applications to land use. Acta Pedologica Sinica, 42(4): 545–550.
Wang X, Hu Y K, Rehemudula Adila, et al. 2009. Niche characteristics of Stipa purpurea community in alpine meadow of Bayanbulak. Arid Land Geography, 32(2): 255–260.
Wen L, Dong S K, Zhu L, et al. 2011. The effect of natural factors and disturbance intensity on spacial heterogeneity of plant diversity in alpine meadow. Acta Ecologica Sinica, 31(7): 1844–1854.
Zeng X Q, Liu H P, Lu B J, et al. 2008. Fractal dimension of soil particlesize distribution characteristic in the Beijing Mountains. Journal of Mountain Science, 26(1): 65–70.
Zhang J T. 2004. Quantitative Ecology. Beijing: Science Press, 77–96.