[1] Zhao CL, Shao MA, Jia XX, et al. Particle size distribution of soils (0-500 cm) in the Loess Plateau, China. Geoderma Regional, 2016, 7: 251-258 [2] Li M (李 敏), Li Y (李 毅). Local fractal and multifractal characteristics of soil number-based particle size distributions. Journal of Northwest A&F University (Natural Science) (西北农林科技大学学报: 自然科学版), 2011, 39(11): 216-222 (in Chinese) [3] Yang P-L (杨培岭), Luo Y-P (罗远培), Shi Y-C (石元春). Fractal features of soils characterized by particle weight distribution. Chinese Science Bulletin (科学通报), 1993, 38(20): 1896-1899 (in Chinese) [4] Perfect E, Kay BD. Applications of fractals in soil and tillage research: A review. Soil & Tillage Research, 1995, 36: 1-20 [5] Wang G-L (王国梁), Zhou S-L (周生路), Zhao Q-G (赵其国). Volume fractal dimension of soil particles and its application to land use. Acta Pedologica Sinica (土壤学报), 2006, 42(4): 545-550 (in Chinese) [6] Mishra S, Parker JC, Singhal N. Estimation of soil hydraulic properties and their uncertainty from particle size distribution data. Journal of Hydrology, 1989, 108: 1-18 [7] Huang G-H (黄冠华), Zhan W-H (詹卫华). Fractal property of soil particle size distribution and its application. Acta Pedologica Sinica (土壤学报), 2002, 39(4): 490-497 (in Chinese) [8] Wang D (王 德), Fu B-J (傅伯杰), Chen L-D (陈利顶), et al. Fractal analyzation soil particle size distributions under different land-use types: A case study in the loess hilly areas of the Loess Plateau, China. Acta Ecologica Sinica (生态学报), 2007, 27(7): 3081-3089 (in Chinese) [9] Lyu S-Q (吕圣桥), Gao P (高 鹏), Geng G-P (耿广坡), et al. Characteristics of soil particles and their correlation with soil organic matter in lowlands of the Yellow River Delta. Journal of Soil and Water Conservation (水土保持学报), 2011, 25(6): 134-138 (in Chinese) [10] Huai T (淮 态), Pang J-L (庞奖励), Wen Q (文青), et al. Fractal characteristics of particle size distribution in soils different in land use. Journal of Ecology and Rural Environment (生态与农村环境学报), 2008, 24(4): 41-44 (in Chinese) [11] Du H-Y (杜海燕), Zhou Z-B (周智彬), Liu F-S (刘凤山), et al. Variation of fractal dimension of soil particle size distribution in the Aral Reclamation area in oasis development. Arid Zone Research (干旱区研究), 2013, 30(4): 615-622 (in Chinese) [12] Wei M-H (魏茂宏), Lin H-L (林慧龙). Soil particle size distribution and its fractal dimension among degradation sequences of the alpine meadow in the source region of the Yangtze and Yellow River, Qinghai-Tibetan Plateau, China. Chinese Journal of Applied Ecology (应用生态学报), 2014, 25(3): 679-686 (in Chinese) [13] Wang X-D (王小丹), Liu G-C (刘刚才), Liu S-Z (刘淑珍), et al. Fractal characteristics of soil and its application in the arid and semi-arid region, Tibet Pla-teau. Journal of Mountain Science (山地学报), 2003, 21(suppl.1): 58-63 (in Chinese) [14] Shen H-H (沈海花), Zhu Y-K (朱言坤), Zhao X (赵 霞), et al. Analysis of current grassland resources in China. Chinese Science Bulletin (科学通报), 2016, 61(2): 139-154 (in Chinese) [15] Zhao H-L (赵哈林), Zhao X-Y (赵学勇), Zhang T-H (张铜会), et al. The Biological Process of Desertification and the Mechanism of Restoration of Degraded Ve-getation. Beijing: Science Press, 2007 (in Chinese) [16] Xu D-M (许冬梅), Zhao L-L (赵丽莉), Xie Y-Z (谢应忠). Dynamics of plant community during sandy desertification for grassland in Yanchi County. Acta Botanica Boreali-Occidentalia Sinica (西北植物学报), 2011, 31(10): 2084-2089 (in Chinese) [17] Zhao H-L (赵哈林), Li Y-Q (李玉强), Zhou R-L (周瑞莲). Effects of desertification on C and N storages in grassland ecosystem on Horqin sandy land. Chinese Journal of Applied Ecology (应用生态学报), 2007, 18(11): 2412-2417 (in Chinese) [18] Tang Z-S (唐庄生), An H (安 慧), Deng L (邓蕾). Changes in the plant community and soil physical properties during grassland desertification of steppes. Acta Ecologica Sinica (生态学报), 2016, 36(4): 991-1000 (in Chinese) [19] Zuo X-A (左小安), Zhao H-L (赵哈林), Zhao X-Y (赵学勇), et al. Spatial heterogeneity of soil organic carbon and total nitrogen of sandy grassland in the restoration of degraded vegetation in Horqin sandy land, northern China. Environmental Science (环境科学), 2009, 30(8): 2387-2393 (in Chinese) [20] Zhao Z-P (赵志平), Wu X-P (吴晓莆), Li G (李果), et al. The cause of grassland degradation in Golog Tibetan Autonomous Prefecture in the Three Rivers Headwaters Region of Qinghai Province. Acta Ecologica Sinica (生态学报), 2013, 33(20): 6577-6586 (in Chinese) [21] Zhao H-L (赵哈林), Zhao X-Y (赵学勇), Zhang T-H (张铜会), et al. Desertification process and its spatial differentiation in arid areas of northwest China. Journal of Desert Research (中国沙漠), 2011, 31(1): 1-8 (in Chinese) [22] Ding G-D (丁国栋). Study on indicative feature and cover classification of vegetation in regional desertification assessment: Taking Mu Us sand land as an example. Journal of Soil and Water Conservation (水土保持学报), 2004, 18(1): 158-160 (in Chinese) [23] Huang C-Y (黄昌勇), Xu J-M (徐建明). Agrology. Beijing: China Agriculture Press, 2011 (in Chinese) [24] Tyler SW, Wheatcraft SW. Fractal scaling of soil particle-size distributions: Analysis and limitations. Soil Science Society of America Journal, 1992, 56: 362-369 [25] Wei X, Li XG, Wei N. Fractal features of soil particle size distribution in layered sediments behind two check dams: Implications for the Loess Plateau, China. Geomorphology, 2016, 266: 133-145 [26] Zhao HL, Zhao XY, Zhou RL, et al. Desertification processes due to heavy grazing in sandy range land, Inner Mongolia. Journal of Arid Environments, 2005, 62: 309-319 [27] Zhang C, McBean EA. Estimation of desertification risk from soil erosion: A case study for Gansu Province, China. Stochastic Environmental Research and Risk Assessment, 2016, 30: 2215-2229 [28] Tang ZS, An H, Shangguan ZP. The impact of desertification on carbon and nitrogen storage in the desert steppe ecosystem. Ecological Engineering, 2015, 84: 92-99 [29] Liu S-L (刘树林), Wang T (王 涛), Qu J-J (屈建军). Soil characteristics changes in desertification processes in Hunshandake sandy land, northern China. Journal of Desert Research (中国沙漠), 2008, 28(4): 611-616 (in Chinese) [30] Yan Y-C (闫玉春), Wang X (王 旭), Yang G-X (杨桂霞), et al. Review on mechanism of fine soil particles increase in enclosed grassland. Journal of Desert Research (中国沙漠), 2011, 31(5): 1162-1166 (in Chinese) [31] Zhang C-X (张成霞), Nan Z-B (南志标). Changeable characteristics of three soil microbial groups under different grazing intensities in Loess Plateau. Pratacultural Science (草业科学), 2010, 27(11): 131-136 (in Chinese) [32] An H (安 慧), Xu K (徐 坤). The effect of gra-zing disturbance on soil properties in desert steppe. Acta Prataculturae Sinica (草业学报), 2013, 22(4): 35-42 (in Chinese) [33] Gao Y (高 洋), Wang G-X (王根绪), Gao Y-H (高永恒). Distribution characteristics of soil organic matter and nitrogen, phosphorus content in alpine grassland ecosystem in upper Yangtze River. Pratacultural Science (草业科学), 2015, 32(10): 1548-1554 (in Chinese) [34] Zhao F (赵 菲), Xie Y-Z (谢应忠), Ma H-B (马红彬), et al. Effects of enclosure on species diversity and soil organic matter of typical steppe. Pratacultural Science (草业科学), 2011, 28(6): 887-891 (in Chinese) [35] Peng J-J (彭佳佳), Hu Y-F (胡玉福), Xiao H-H (肖海华), et al. Influences of ecological restoration on soil organic matter and nitrogen in desertification grassland in the northwestern Sichuan. Journal of Arid Land Resources and Environment (干旱区资源与环境), 2015, 29(5): 149-153 (in Chinese) [36] Cyle SV, Hussain S, Shabeer KR, et al. Labile carbon pools and soil organic carbon stocks in the foothill Himalayas under different land use systems. Geoderma, 2014, 232-234: 81-87 [37] Wu T-Y (武天云), Schoenau JJ, Li F-M (李凤民), et al. Concepts and relative analytical techniques of soil organic matter. Chinese Journal of Applied Ecology (应用生态学报), 2004, 15(4): 717-722 (in Chinese) [38] Cao C-Y (曹成有), Zhu L-H (朱丽辉), Fu Y (富瑶), et al. Changes of soil biological activity in desertification process of Horqin sandy grassland. Chinese Journal of Ecology (生态学杂志), 2007, 26(5): 622-627 (in Chinese) [39] Hu Y-F (胡云锋), Liu J-Y (刘纪远), Zhuang D-F (庄大方), et al. Fractal dimension of soil particle size distribution under different land use/land coverage. Acta Pedologica Sinica (土壤学报), 2005, 42(2): 336-339 (in Chinese) [40] Su Y-Z (苏永中), Zhao H-L (赵哈林). Fractal features of soil particle size distribution in the desertification process of the farmland in Horsing Sandy Land. Acta Ecologica Sinica (生态学报), 2004, 24(1): 71-74 (in Chinese) [41] Gui D-W (桂东伟), Lei J-Q (雷加强), Zeng F-J (曾凡江), et al. Characteristics of soil particle size distribution in different land-use types of Oasis Rim. Scientia Silvae Sinicae (林业科学), 2011, 47(1): 22-28 (in Chinese) [42] Lobe I, Amelung W, Preez CCD. Losses of carbon and nitrogen with prolonged arable cropping from sandy soils of the South African Highveld. European Journal of Soil Science, 2001, 52: 93-101 [43] Fullen MA, Booth CA, Brandsma RT. Long-term effects of grass ley set-aside on erosion rates and soil organic matter on sandy soils in east Shropshire, UK. Soil & Tillage Research, 2006, 89: 122-128 [44] Peng X-H (彭新华), Zhang B (张 斌), Zhao Q-G (赵其国). A review on relationship between soil orga-nic carbon pools and soil structure stability. Acta Pedolo-gica Sinica (土壤学报), 2004, 41(4): 618-623 (in Chinese) [45] Liu M-Q (刘满强), Hu F (胡 锋), Chen X-Y (陈小云). A review on mechanisms of soil organic carbon stabilization. Acta Ecologica Sinica (生态学报), 2007, 27(6): 2642-2650 (in Chinese) |