Spatial variability analysis of soil infiltration by calculating simplified G-A infiltration parameters using soil compaction
Liu Shanshan1,2, Xu Di1,2, Bai Meijian1,2, Li Yinong1,2, Wen Xinmin3
1.National Center of Efficient Irrigation Engineering and Technology Research-Beijing, Beijing 100048, China; 2.Department of Irrigation and Drainage, China Institute of Water Resources and Hydropower Research, Beijing 100048, China; 3. 222 Regiment Field of Xinjiang Production and Construction Corps, Fukang, Xinjiang 831500, China
Abstract:In order to analyze the spatial variability of soil infiltration and provide guidance for irrigation system design and management, based on the observed data of initial water content, soil compaction, clay content and soil infiltration at typical points, the rationality of calculating simplified G-A infiltration parameters using soil compaction were analyzed by means of multiple linear regression me-thod. Furthermore, spatial variability of soil infiltration was also discussed using semi-variance analysis at different basin sizes. The results show that there is a high correlation among soil compaction, soil texture, soil structure and soil water content, meanwhile satisfactory significance was reached in its regression relevance with soil infiltration parameters. Thus it is feasible to calculate simplified G-A infiltration parameters using soil compaction. When the basin size expanded from 0.5 hm2 to 3.0 hm2, the variation coefficient of G-A infiltration parameters were between 0.1 and 1.0. Medium spatial variability of G-A infiltration parameters were found at different basin sizes. The semi-variogram of G-A infiltration parameters could be described by spherical model, and the spatial structural correlation were medium. No significant differences in spatial variation of infiltration parameters were found among different basin sizes.
[1]樊贵盛.冻融土壤水分入渗规律与冬灌灌水过程研究[D].北京:中国农业大学资源与环境学院,2001.[2]Zapata N, Playan E, Faci J M. Elevation and infiltration in a level basin—II: Impact on soil water and corn yield[J].Irri Sci,2000, 19(4):165-173.[3]Schwankl L J, Raghuwanshi N S, Wallender W W. Furrow irrigation performance under spatially varying conditions[J]. Journal of Irrigation and Drainage Enginee-ring, 2000, 126(6):355-361.[4]白美健,许迪,李益农.不同微地形条件下入渗空间变异对畦灌性能影响分析[J].水利学报, 2010, 41(6):733-738. Bai Meijian, Xu Di, Li Yinong. Effects of spatial variability of infiltration on basin irrigation performance under different microtopography conditions[J]. Journal of hydrodynamic engineering,2010,41(6):733-738.(in Chinese)[5]吕刚,吴祥云. 土壤入渗特性影响因素研究综述[J].农业工程科学,2008, 24(7):494-499. Lü Gang, Wu Xiangyun. Review on influential factor s of soil infiltration characteristics[J]. Chinese Agricultural Science Bulletin,2008, 24(7):494-499.(in Chinese)[6]吴发启, 赵西宁, 金雕. 坡耕地土壤水分入渗影响因素分析[J]. 水土保持通报, 2003,23(1):16-19. Wu Faqi, Zhao Xining, Jin Diao. Analysis on affecting factors of soil infiltration in slope farmland[J].Bulletin of Soil and Water Conservation, 2003,23(1):16-19.(in Chinese)[7]贾宏伟,康绍忠,张富仓,等. 石羊河流域平原区土壤入渗特性空间变异的研究[J].水科学进展,2006,17(8):471-476. Jia Hongwei, Kang Shaozhong, Zhang Fucang, et al. Spatial variability of soil water infiltration in the plain of Shiyang river basin[J].Advances in Water Science,2006,17(8):471-476.(in Chinese)[8]屈金娜. 区域尺度土壤入渗特征参数的变异性研究[D].杨凌:西北农林科技大学水利与建筑工程学院,2008.[9]刘继龙,马孝义,张振华.土壤入渗特性的空间变异性及土壤转换函数[J].水科学进展,2010,21(2):214-221. Liu Jilong,Ma Xiaoyi,Zhang Zhenhua.Spatial variability of soil infiltration characteristics and its pedo-transfer functions [J].Advances in Water Science,2010,21(2):214-221.(in Chinese)[10]聂卫波,费良军,马孝义.区域尺度土壤入渗参数空间变异性规律研究[J].农业机械学报,2011,42(7):102-108. Nie Weibo,Fei Liangjun,Ma Xiaoyi. Spatial variability of infiltration parameters at the region scales[J].Transac-tions of the Chinese Society for Agricultural Machinery,2011,42(7):102-108.(in Chinese)[11]刘姗姗,白美健,许迪,等. Green-Ampt入渗模型参数简化及其与土壤物理参数间的关系[J].农业工程学报,2012,28(1):106-110. Liu Shanshan,Bai Meijian,Xu Di,et al. Parameters simplification of Green-Ampt infiltration models and relationships between infiltration and soil physical parameters [J]. Transactions of the CSAE, 2012, 28(1):106-110.(in Chinese)[12]Hillel D. Application of Soil Physics[M]. New York: Academic Press, 1980.[13]刘大海, 李宁, 晃阳. SPSS15.0统计分析从入门到精通[M].北京:清华大学出版社, 2008.[14]张仁铎. 空间变异理论及其应用[M].北京:科学出版社, 2005.[15]陶庄. Box-Cox变换及其在STATA软件中的实现[J].数理医药学杂志,2007, 20(3):380-383. Tao Zhuang.Box-Cox transform and its realization in STATA[J]. Journal of Mathematical Medicine,2007, 20(3):380-383.(in Chinese)[16]焦彩强,王益权,刘军,等.关中地区耕作方法与土壤紧实度时空变异及其效应分析[J].干旱地区农业研究,2009,27(3):7-12. Jiao Caiqiang, Wang Yiquan, Liu Jun, et al.Spatial temporal variability of soil hardness and effect of soil hardness on other soil properties in rotary tillage in Guanzhong farmland[J].Agricultural Research in the Arid Areas,2009,27(3):7-12.(in Chinese)[17]Miller M P. Spatial variability of wheat yield and soil properties on complex hills [J]. Soil Sci Soc Am, 1988, 52(4):1133-1141.[18]白美健,许迪,李益农,等. 地面灌溉土壤入渗参数时空变异性试验研究[J].水土保持学报, 2005, 19(5):120-123. Bai Mejian, Xu Di, Li Yinong, et al. Evaluating spatial and temporal variability of infiltration on field scale under surface irrigation[J]. Journal of Soil and Water Conservation, 2005, 19(5):120-123.(in Chinese) .