Variabilidade espacial do potencial de erosão das chuvas do Estado de São Paulo
作者： Sidney Rosa Vieira , Francisco Lombardi Neto
DOI: 10.1590/S0006-87051995000200019
关键词: Geostatistics 、 Hydrology 、 Spatial analysis 、 Dry season 、 Universal Soil Loss Equation 、 Contour line 、 Environmental science 、 Spatial variability 、 Wet season
摘要: Rainfall data from 292 raingauges operated by the State of Sao Paulo were used to calculate rainfall erosivity factor Universal Soil Loss Equation using a model available literature. The objective this work was use geostatistics study spatial variability and construct isoline maps with high precision. Spatial autocorrelation calculated semivariograms for rainy (October March) dry seasons (April September), yearly average. range within 50 70 kilometers, however, jack-knifing technique showed that only 16 nearest neighbors should be in order stay distances where stationarity existed. A total 2,460 values estimated on 20 kilometers grid allow good precision contour maps. during season increases southward. During season, trend inverts itself, increasing northward.
sci-hub.st 参考文章(7)
T. M. Burgess, R. Webster, Optimal interpolation and isarithmic mapping of soil properties. I. The semi-variogram and punctual kriging European Journal of Soil Science. ,vol. 31, pp. 315- 331 ,(1980) , 10.1111/EJSS.12784
S. Hajrasuliha, N. Baniabbassi, J. Metthey, D.R. Nielsen, Spatial variability of soil sampling for salinity studies in Southwest Iran Irrigation Science. ,vol. 1, pp. 197- 208 ,(1980) , 10.1007/BF00277625
S. R. Vieira, D. R. Nielsen, J. W. Biggar, Spatial Variability of Field-Measured Infiltration Rate1 Soil Science Society of America Journal. ,vol. 45, pp. 1040- 1048 ,(1981) , 10.2136/SSSAJ1981.03615995004500060007X
Francisco Lombardi Neto, William Calvin Moldenhauer, Rainfall erosivity: its distribution and relationship with soil loss at Campinas, state of São Paulo, Brazil Bragantia. ,vol. 51, pp. 189- 196 ,(1992) , 10.1590/S0006-87051992000200009
Walter H. Wischmeier, Dwight D. Smith, Rainfall energy and its relationship to soil loss Eos, Transactions American Geophysical Union. ,vol. 39, pp. 285- 291 ,(1958) , 10.1029/TR039I002P00285
S. R. Vieira, J. L. Hatfield, D. R. Nielsen, J. W. Biggar, Geostatistical theory and application to variability of some agronomical properties Hilgardia. ,vol. 51, pp. 1- 75 ,(1983) , 10.3733/HILG.V51N03P075
S. R Vieira, F. Neto Lombardi, I. T Burrows, Mapeamento da chuva diária máxima provável para o estado de São Paulo Revista Brasileira De Ciencia Do Solo. ,vol. 15, pp. 93- 98 ,(1991)