降雨对秸秆还田玉米地土壤水分空间变异性的影响
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摘要
基于TDR测量的黑土区玉米地土壤水分,应用多重分形等理论研究土壤水分空间变异特征对降雨的响应.结果表明:降雨前后土壤水分均为中等变异;相对于降雨前,降雨后不同土层土壤水分空间相关范围、空间相关程度和空间变异程度随时间的变化特征有所差异;降雨前后0～20cm土层空间变异性主要由其低值造成,其他土层主要由其高值引起;降雨前与降雨后第一天土壤水分的多尺度相关程度,小于与降雨后第二天的多尺度相关程度;与降雨前土壤水分空间相关范围、空间相关程度、空间变异程度及相邻土层土壤水分多尺度相关程度随土层深度增加的变化特征相比,除降雨后第一天空间变异程度、第二天空间相关范围的变化特征与降雨前不同外,降雨后第一天和第二天其他上述特征参数的变化特征与降雨前相同.
Based on soil moisture measured with TDR,influence of rainfall on spatial variability of soil moisture in corn field was studied with multifractal and other methods.The results showed that soil moisture before and after rainfall had moderate variability;compared to spatial correlation range,spatial correlation degree and spatial variability degree of soil moisture before rainfall,after rainfall,change characteristics of above parameters in different soil layers were different with time;spatial variability of soil moisture in the 0-20 cm soil layer before and after rainfall were mainly brought about by its low values,and those in the other soil layers were mainly caused by its high values;multi-scale relationship degrees between soil moisture before rainfall and on the first day after rainfall were less than the ones before rainfall and on the second day after rainfall;compared to the trends of spatial correlation range,spatial correlation degree,spatial variability degree and multi-scale relationship degree between soil moisture in adjacent soil layers before rainfall with the increasing of soil layer depth,except the trends of spatial variability degree on the first day and spatial correlation range on the second day after rainfall were different from the ones before rainfall,and the trends of other aforementioned parameters on the first and second days after rainfall were identical to the ones before rainfall.
Based on soil moisture measured with TDR,influence of rainfall on spatial variability of soil moisture in corn field was studied with multifractal and other methods.The results showed that soil moisture before and after rainfall had moderate variability;compared to spatial correlation range,spatial correlation degree and spatial variability degree of soil moisture before rainfall,after rainfall,change characteristics of above parameters in different soil layers were different with time;spatial variability of soil moisture in the 0-20 cm soil layer before and after rainfall were mainly brought about by its low values,and those in the other soil layers were mainly caused by its high values;multi-scale relationship degrees between soil moisture before rainfall and on the first day after rainfall were less than the ones before rainfall and on the second day after rainfall;compared to the trends of spatial correlation range,spatial correlation degree,spatial variability degree and multi-scale relationship degree between soil moisture in adjacent soil layers before rainfall with the increasing of soil layer depth,except the trends of spatial variability degree on the first day and spatial correlation range on the second day after rainfall were different from the ones before rainfall,and the trends of other aforementioned parameters on the first and second days after rainfall were identical to the ones before rainfall.
引文
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[17] 雷志栋,杨诗秀,谢森传.土壤水动力学[M].北京:清华大学出版社,1988 Lei Zhidong,Yang Shixiu,Xie Senzhuan.Soil water dynamics[M].Beijing:Tsinghua University Press,1988
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[22] Eghball B,Schepers J S,Negahban M,et al.Spatial and temporal variability of soil nitrate and corn yield:multifractal analysis[J].Agronomy Journal,2003,95(2):339-346
[23] 黄绍文,金继运.土壤特性空间变异研究进展[J].土壤肥料,2002,1:8-14 Huang Shaowen,Jin Jiyun.Advance in study on spatial variability of soil properties[J].Soils and Fertilizers,2002,1:8-14
[24] 杜华强,汤孟平,周国模,等.天目山物种多样性尺度依赖及其与空间格局关系的多重分形[J].生态学报,2007,27(12):5038-5049 Du Huaqiang,Tang Mengping,Zhou Guomo,et al.Linking species diversity with spatial scale dependence to spatial patterns using multifractal analysis[J].Acta Ecologica Sinica,2007,27(12):5038-5049
[25] 管孝艳,杨培岭,吕烨.基于多重分形理论的农田土壤特性空间变异性分析[J].应用基础与工程科学学报,2011,19(5):712-720 Guan Xiaoyan,Yang Peiling,Lü Ye.Analysis on spatial variability of soil properties based on multifractal theory[J].Journal of Basic Science and Engineering,2011,19(5):712-720
[2] 刘继龙,马孝义,张振华.土壤水盐空间异质性及尺度效应的多重分形[J].农业工程学报,2010,26(1):81-86 Liu Jilong,Ma Xiaoyi,Zhang Zhenhua.Multifractal study on spatial variability of soil water and salt and its scale effect[J].Transactions of the Chinese Society of Agricultural Engineering,2010,26(1):81-86
[3] Zucco G,Brocca L,Moramarco T,et al.Influence of land use on soil moisture spatial–temporal variability and monitoring[J].Journal of Hydrology,2014,516:193-199
[4] Yang Jing,Chen Hongsong,Nie Yunpeng,et al.Spatial variability of shallow soil moisture and its stable isotope values on a karst hillslope[J].Geoderma,2016,264:61-70
[5] 刘继龙,任高奇,付强,等.黑土区玉米地土壤水分的时空变异性研究[J].应用基础与工程科学学报,2016,24(6):1087-1099 Liu Jilong,Ren Gaoqi,Fu Qiang,et al.Spatial and temporal variability of soil moisture of corn field in black soil region[J].Journal of Basic Science and Engineering,2016,24(6):1087-1099
[6] Shen Qin,Gao Guangyao,Hu Wei,et al.Spatial-temporal variability of soil water content in a cropland-shelterbelt-desert site in an arid inland river basin of Northwest China[J].Journal of Hydrology,2016,540:873-885
[7] Mei Xuemei,Zhu Qingke,Ma Lan,et al.The spatial variability of soil water storage and its controlling factors during dry and wet periods on loess hillslopes[J].Catena,2018,162:333-344
[8] He Zhibin,Zhao Wenzhi,Liu Hu,et al.The response of soil moisture to rainfall event size in subalpine grassland and meadows in a semi-arid mountain range:A case study in northwestern China's Qilian mountains[J].Journal of Hydrology,2012,420-421:183-190
[9] Wang Shuai,Fu Bojie,Gao Guangyao,et al.Responses of soil moisture in different land cover types to rainfall events in a re-vegetation catchment area of the Loess Plateau,China[J].Catena,2013,101:122-128
[10] 茹豪,张建军,张琦,等.晋西黄土区雨养果园土壤水分动态及对降雨的响应[J].水土保持学报,2014,28(1):36-42 Ru Hao,Zhang Jianjun,Zhang Qi,et al.Soil moisture dynamics and its response to precipitation in the rain-fed orchard in Loess region of western Shanxi Province[J].Journal of Soil and Water Conservation,2014,28(1):36-42
[11] 冯伟,杨文斌,李卫,等.毛乌素沙地沙柳固定沙丘土壤水分对降雨的响应[J].水土保持学报,2014,28(5):95-99 Feng Wei,Yang Wenbin,Li Wei,et al.Response of soil moisture on rainfall in the Salix psammophila fixed dunes of Mu Us Sand land[J].Journal of Soil and Water Conservation,2014,28(5):95-99
[12] 董文财,付强,王全九,等.植株影响下大豆农田土壤水分对降雨的响应模型研究[J].应用基础与工程科学学报,2017,25(2):276-285 Dong Wencai,Fu Qiang,Wang Quanjiu,et al.Simulation of soil water infiltration in soybean field during rainfall[J].Journal of Basic Science and Engineering,2017,25(2):276-285
[13] Wilson D J,Western A W,Grayson R B,et al.Spatial distribution of soil moisture over 6 and 30cm depth,Mahurangi river catchment,New Zealand[J].Journal of Hydrology,2003,276:254-274
[14] 王云强,张兴昌,朱元骏,等.次降雨后不同时段坡地表层土壤水分和容重的空间变异特征[J].水土保持学报,2011,25(5):242-246 Wang Yunqiang,Zhang Xingchang,Zhu Yuanjun,et al.Spatial variability of surface soil moisture and bulk density in a slope-land at different stages after a rainfall[J].Journal of Soil and Water Conservation,2011,25(5):242-246
[15] 刘宇,王彦辉,郭建斌,等.六盘山华北落叶松人工林土壤水分空间异质性的降雨前后变化及其影响因素[J].水土保持学报,2016,30(5):197-204 Liu Yu,Wang Yanhui,Guo Jianbin,et al.Variation and main influencing factors of spatial heterogeneity of soil moisture of Larix principis-rupprechtii plantation before and after raining in Liupan mountains of Ningxia,China[J].Journal of Soil and Water Conservation,2016,30(5):197-204
[16] 赵文举,李晓萍,范严伟,等.不同降雨脉动条件下压砂地土壤水分的空间变异特征[J].应用基础与工程科学学报,2016,24(6):1159-1169 Zhao Wenju,Li Xiaoping,Fan Yanwei,et al.Spatial variation characteristics of soil moisture in gravel-sand mulched field to different precipitation pulses[J].Journal of Basic Science and Engineering,2016,24(6):1159-1169
[17] 雷志栋,杨诗秀,谢森传.土壤水动力学[M].北京:清华大学出版社,1988 Lei Zhidong,Yang Shixiu,Xie Senzhuan.Soil water dynamics[M].Beijing:Tsinghua University Press,1988
[18] Matheron G.Principles of geostatistics[J].Economic Geology,1963,58(8):1246-1266
[19] Cambardella C A,Moorman T B,Novakj M,et al.Field-scale variability of soil properties in central lowa soils[J].Soil Science Society of America Journal,1994,58:1501-1511
[20] Chhabra A,Jensen R V.Direct determination of the f(α) singularity spectrum[J].Physical Review Letters,1989,62:1327-1330
[21] Zeleke T B,Si B C.Scaling relationships between saturated hydraulic conductivity and soil physical properties[J].Soil Science Society of America Journal,2005,69(6):1691-1702
[22] Eghball B,Schepers J S,Negahban M,et al.Spatial and temporal variability of soil nitrate and corn yield:multifractal analysis[J].Agronomy Journal,2003,95(2):339-346
[23] 黄绍文,金继运.土壤特性空间变异研究进展[J].土壤肥料,2002,1:8-14 Huang Shaowen,Jin Jiyun.Advance in study on spatial variability of soil properties[J].Soils and Fertilizers,2002,1:8-14
[24] 杜华强,汤孟平,周国模,等.天目山物种多样性尺度依赖及其与空间格局关系的多重分形[J].生态学报,2007,27(12):5038-5049 Du Huaqiang,Tang Mengping,Zhou Guomo,et al.Linking species diversity with spatial scale dependence to spatial patterns using multifractal analysis[J].Acta Ecologica Sinica,2007,27(12):5038-5049
[25] 管孝艳,杨培岭,吕烨.基于多重分形理论的农田土壤特性空间变异性分析[J].应用基础与工程科学学报,2011,19(5):712-720 Guan Xiaoyan,Yang Peiling,Lü Ye.Analysis on spatial variability of soil properties based on multifractal theory[J].Journal of Basic Science and Engineering,2011,19(5):712-720
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