1. 中国科学院寒区旱区环境与工程研究所,甘肃,兰州,730000
2. 兰州大学力学系,甘肃,兰州,730000
纸质出版:2001
移动端阅览
王训明, 董治宝, 武生智, 等. 土壤风蚀过程的一类随机模型[J]. 水土保持通报, 2001,20(1):19-22.
WANG Xun ming, DONG Zhi bao, WU Sheng zhi, et al. A Stochastic Model for Processes of Soil Wind Erosion[J]. Bulletin of Soiland Water Conservation, 2001, 20(1): 19-22.
以土壤风蚀的随机理论为基础
建立了土壤风蚀的一类随机过程模型。并求出了在任意时刻任一类可风蚀物质的随机概率分布、数学期望 (平均风蚀量 )以及平均风蚀量的方差。与前人的研究相比
该模型不需要规定时间的长度
可以将影响风蚀的不同因素分为不同的类别
以便进行单一风蚀因子影响分析或通过求出各因子之间的联合概率密度分布而进行综合分析.
Based on the stochastic theories of soil wind erosion
a stochastic model for soil wind erosion isfounded
and the stochastic probability distributions
expectations and variations for stun a kinds erodible soil particles at any time are calculated. Com-pared with the former researches
the model do not need to limit the length of the time
and classified the factors which influence the wind erosion as different kinds. And through those can analysis for single factor or through calculating the joint probability density distributions of those factors and analysis the relations-hips of those factors synthetically.
Woodruff N P,Siddowav F H. A wind erosion equation[J]. Soil Seierm;e Soeietv America Proceedings.1965,29(5):602-608.
董治宝高尚玉董光荣.土壤风蚀预报研究述评[J].中国沙漠1999,19( 4): 312-317.
Siddmore E L.Woodruff N P. Wirub erosion forces in the United States and their use in predicting soil loss[Z].USDA-ARS, Agricultural Handbook, No.346. 1968,42.
Bondv E, Lvles L, HuvcsW A. Computing soil erosion by periods using wind energy distribution[J]. Journal ofSoil and tauter Conservation, 1980, 35(4): 173-176.
Cole G W,Lvles L, Hagen L J. A simulation rnodel for daily wind erosion soil loss[J].Transactions of ASAE.1983,26(6):175-1765.
Cole G W.A met-hod for determining field wind erosion ru-tcs from wind tunnel derived functions[J]. Transactions of ASAE 1984. 27(1): 110- 116.
Cole G W .A stochastic formulation of soil erosion causedby wimd[J]. Trunsactions of ASAE. 1984, 27(4): 1405-1410.
Nussur R.Fan L T. Too J R. Disurd L A.A Murkov process model of wind erosion[J]·Transactions ofASAE.1984.27(3): 1047-1054.
Anderson R S. Aeolian sediment trunsport as a stochastions process the effect of a fluct-u-ating wind on particle trajectories[J] J Geographv. 1987, 95 497-512.
Anderson R S. A review of rcx;ent progress in our anderstuncling of ueoliun sediment transport[J]. Acta Mechanica,1991,1:1-19.
韩其为何明民.泥沙运动统计理论[M].北京:科学出版社1984. 145-150
Sheldon M Ross.Stochastic processcs[M].John Wiley&Sons Ltd. 1983.141-182.
Fan L T, Disrud L A.Transient wind erosion A studyof nonstationarv effect on rate of wind erosion[J]. Soil Science, 1977.124 61-65.
0
浏览量
1713
下载量
0
CSCD
关联资源
相关文章
相关作者
相关机构
京公网安备11010802024621