Armstrong, M, Boufassa, A, Comparing the robustness of ordinary kriging and lognormal kriging: Outlier resistance. Mathematical Geology 20 (1988), 447–457.
Behera, S K, Shukla, A K, Spatial distribution of surface soil acidity, electrical conductivity, soil organic carbon content and exchangeable potassium, calcium and magnesium in some cropped acid soils of India. Land Degradation Development 26 (2015), 71–79.
Blanchet, G, Libohova, Z, Joost, S, Rossier, N, Schneider, A, Jeangros, B, Sinaj, S, Spatial variability of potassium in agricultural soils of the canton of Fribourg, Switzerland. Geoderma 290 (2017), 107–121.
Bogunovic, I, Mesic, M, Zgorelec, Z, Jurisic, A, Bilandzija, D, Spatial variation of soil nutrients on sandy-loam soil. Soil & Tillage Research 144 (2014), 174–183.
Bogunovic, I, Pereira, P, Brevik, E C, Spatial distribution of soil chemical properties in an organic farm in Croatia. Science of the Total Environment 584–585 (2017), 535–545.
Bowman, W D, Cleveland, C C, Halada, Ĺ, Hreško, J, Baron, J S, Negative impact of nitrogen deposition on soil buffering capacity. Nature Geoscience 1 (2008), 767–770.
Cai, Z J, Wang, B R, Xu, M G, Zhang, H M, He, X H, Zhang, L, Gao, S D, Intensified soil acidification from chemical N fertilization and prevention by manure in an 18-year field experiment in the red soil of southern China. Journal of Soils and Sediments 15 (2015), 260–270.
Cambardella, C A, Moorman, T B, Parkin, T B, Karlen, D L, Novak, J M, Turco, R F, Konopka, A E, Field-scale variability of soil properties in central Iowa soils. Soil Science Society of America Journal 58 (1994), 1501–1511.
Chen, D M, Lan, Z C, Bai, X, Grace, J B, Bai, Y F, Evidence that acidification-induced declines in plant diversity and productivity are mediated by changes in below-ground communities and soil properties in a semi-arid steppe. Journal of Ecology 101 (2013), 1322–1334.
Denton, O A, Aduramigba-Modupe, V O, Ojo, A O, Adeoyolanu, O D, Are, K S, Adelana, A O, Oyedele, A O, Adetayo, A O, Oke, A O, Assessment of spatial variability and mapping of soil properties for sustainable agricultural production using geographic information system techniques (GIS). Cogent Food & Agriculture 3 (2017), 1–12.
Duan, L, Huang, Y M, Hao, J M, Xie, S D, Hou, M, Vegetation uptake of nitrogen and base cations in China and its role in soil acidification. Science of the Total Environment 330 (2004), 187–198.
Ferreiro, J P, de Almeida, V P, Alves, M C, de Abreu, C A, Vieira, S R, Vázquez, E V, Spatial variability of soil organic matter and cation exchange capacity in an Oxisol under different land uses. Communications in Soil Science and Plant Analysis 47 (2016), 75–89.
Fu, W J, Tunney, H, Zhang, C S, Spatial variation of soil nutrients in a dairy farm and its implications for site-specific fertilizer application. Soil & Tillage Research 106 (2010), 185–193.
Fujii, K, Hayakawa, C, Panitkasate, T, Maskhao, I, Funakawa, S, Kosaki, T, Nawata, E, Acidification and buffering mechanisms of tropical sandy soil in northeast Thailand. Soil Tillage Research 165 (2017), 80–87.
Gelaw, A M, Singh, B R, Lal, R, Soil organic carbon and total nitrogen stocks under different land uses in a semi-arid watershed in Tigray, Northern Ethiopia. Agriculture, Ecosystems and Environment 188 (2014), 256–263.
Gruba, P, Socha, J, Effect of parent material on soil acidity and carbon content in soils under silver fir (Abies alba Mill.) stands in Poland. Catena 140 (2016), 90–95.
Guan, F Y, Xia, M P, Tang, X L, Fan, S H, Spatial variability of soil nitrogen, phosphorus and potassium contents in Moso bamboo forests in Yong'an City, China. Catena 150 (2017), 161–172.
Guo, J H, Liu, X J, Zhang, Y, Shen, J L, Han, W X, Zhang, W F, Christie, P, Goulding, K W T, Vitousek, P M, Zhang, F S, Significant acidification in major Chinese croplands. Science 327 (2010), 1008–1010.
Guo, X, Li, H Y, Yu, H M, Li, W F, Ye, Y C, Biswas, A, Drivers of spatio-temporal changes in paddy soil pH in Jiangxi Province, China from 1980 to 2010. Scientific Reports 8 (2018), 1–11.
Hanway, J J, Heidel, H, Soil analysis methods as used in Iowa state college soil testing laboratory. Iowa Agriculture 57 (1952), 1–31.
Hao, T X, Zhu, Q C, Zeng, M F, Shen, J L, Shi, X J, Liu, X J, Zhang, F S, de Vries, W, Quantification of the contribution of nitrogen fertilization and crop harvesting to soil acidification in a wheat-maize double cropping system. Plant and Soil 434 (2018), 167–184.
Hengl, T, Heuvelink, G B M, Stein, A, A generic framework for spatial prediction of soil variables based on regression-kriging. Geoderma 120 (2004), 75–93.
Horswill, P, O'Sullivan, O, Phoenix, G K, Lee, J A, Leake, J R, Base cation depletion, eutrophication and acidification of species-rich grasslands in response to long-term simulated nitrogen deposition. Environmental Pollution 155 (2008), 336–349.
IUSS Working Group, World Reference Base for Soil Resources 2014, Update 2015: International Soil Classification System for Naming Soils and Creating Legends for Soil Maps. World Soil Resources Reports No. 106. 2015, FAO, Rome.
Jones, J B Jr, Soil test methods: Past, present, and future use of soil extractants. Communications in Soil Science and Plant Analysis 29 (1998), 1543–1552.
Kerry, R, Oliver, M A, Comparing sampling needs for variograms of soil properties computed by the method of moments and residual maximum likelihood. Geoderma 140 (2007), 383–396.
Li, Q Q, Li, S, Xiao, Y, Zhao, B, Wang, C Q, Li, B, Gao, X S, Li, Y D, Bai, G C, Wang, Y D, Yuan, D G, Soil acidification and its influencing factors in the purple hilly area of southwest China from 1981 to 2012. Catena 175 (2019), 278–285.
Liu, S L, Li, Y, Wu, J S, Huang, D Y, Su, Y R, Wei, W X, Spatial variability of soil microbial biomass carbon, nitrogen and phosphorus in a hilly red soil landscape in subtropical China. Soil Science and Plant Nutrition 56 (2010), 693–704.
Liu, Z P, Shao, M A, Wang, Y Q, Spatial patterns of soil total nitrogen and soil total phosphorus across the entire Loess Plateau region of China. Geoderma 197–198 (2013), 67–78.
Matocha, C J, Grove, J H, Karathanasis, T D, Vandiviere, M, Changes in soil mineralogy due to nitrogen fertilization in an agroecosystem. Geoderma 263 (2016), 176–184.
Mayes, M, Marin-Spiotta, E, Szymanski, L, Akif Erdoğan, M, Ozdoğan, M, Clayton, M, Soil type mediates effects of land use on soil carbon and nitrogen in the Konya Basin, Turkey. Geoderma 232–234 (2014), 517–527.
Mcgahan, D G, Southard, R J, Zasoski, R J, Mineralogical comparison of agriculturally acidified and naturally acidic soils. Geoderma 114 (2003), 355–368.
Mousavifard, S M, Momtaz, H, Sepehr, E, Davatgar, N, Sadaghiani, M H R, Determining and mapping some soil physico-chemical properties using geostatistical and GIS techniques in the Naqade region, Iran. Archives of Agronomy and Soil Science 59 (2013), 1573–1589.
Nsor, M E, Ibanga, I J, Influence of parent materials on the physico-chemical properties of soils in Central Cross River State, Nigeria. Global Journal of Agricutural Sciences 7 (2009), 183–190.
Page, A L, Methods of soil analysis. Part 2. Chemical and Microbiological Properties, 1965, American Society of Agronomy, Soil Science Society of America, USA.
Pebesma, E J, Multivariable geostatistics in S: The gstat package. Computers & Geosciences 30 (2004), 683–691.
Qu, M K, Li, W D, Zhang, C R, Wang, S Q, Effect of land use types on the spatial prediction of soil nitrogen. GIScience & Remote Sensing 49 (2012), 397–411.
R Core Team, R: A language and environment for statistical computing. 2017, R Foundation for Statistical Computing, Vienna, Austria [2017-06-30]. https://www.R-project.org/.
Ramirez, K S, Lauber, C L, Knight, R, Bradford, M A, Fierer, N, Consistent effects of nitrogen fertilization on soil bacterial communities in contrasting systems. Ecology 91 (2010), 3463–3470.
Revelle, W, Psych: Procedures for personality and psychological research. 2018, Northwestern University, Evanston, Illinois, USA [2018-05-06]. https://CRAN.R-project.org/package=psych.
Robert, J H, Raster: Geographic data analysis and modeling. R package version 2.6-7. [2017-11-13]. https://CRAN.R-project.org/package=raster, 2017.
Rosemary, F, Vitharana, U W A, Indraratne, S P, Weerasooriya, R, Mishra, U, Exploring the spatial variability of soil properties in an Alfisol soil catena. Catena 150 (2017), 53–61.
Song, W F, Wang, C, Chen, R F, Wen, S L, Wang, B R, Shen, R F, Comparison of contribution of wheat ionic uptake to soil acidification under different long-term fertilization. Soils 49 (2017), 7–12 (in Chinese).
Sun, B, Zhou, S L, Zhao, Q G, Evaluation of spatial and temporal changes of soil quality based on geostatistical analysis in the hill region of subtropical China. Geoderma 115 (2003), 85–99.
SSOYC (Soil Survey Office of Yujiang County), The Soils of Yujiang County. 1986, Office of Soil Survey in Jiangxi Province, Nanchang (in Chinese).
Tang, X L, Xia, M P, Pérez-Cruzado, C, Guan, F Y, Fan, S H, Spatial distribution of soil organic carbon stock in Moso bamboo forests in subtropical China. Scientific Reports 7 (2017), 1–13.
Tesfahunegn, G B, Tamene, L, Vlek, P L G, Catchment-scale spatial variability of soil properties and implications on site-specific soil management in northern Ethiopia. Soil & Tillage Research 117 (2011), 124–139.
Ulrich, B, Natural and anthropogenic components of soil acidification. Journal of Plant Nutrition and Soil Science 149 (1986), 702–717.
Vasu, D, Singh, S K, Sahu, N, Tiwary, P, Chandran, P, Duraisami, V P, Ramamurthy, V, Lalitha, M, Kalaiselvi, B, Assessment of spatial variability of soil properties using geospatial techniques for farm level nutrient management. Soil & Tillage Research 169 (2017), 25–34.
De Vries, W, Breeuwsma, A, The relation between soil acidification and element cycling. Water, Air, and Soil Pollution 35 (1987), 293–310.
Wang, Q, Yu, H Y, Liu, J F, Li, F B, Attribution of soil acidification in a large-scale region: Artificial intelligence approach application. Soil Science Society of America Journal 82 (2018), 772–782.
Wilding, L P, Spatial variability: Its documentation, accommodation and implication to soil surveys. Soil Spatial Variability Workshop, 1985, Wageningen, The Netherlands, 166–194.
Xu, S X, Shi, X Z, Wang, M Y, Zhao, Y C, Effects of subsetting by parent materials on prediction of soil organic matter content in a hilly area using vis-NIR spectroscopy. PLoS ONE 11 (2016), 1–17.
Yang, P G, Byrne, J M, Yang, M, Spatial variability of soil magnetic susceptibility, organic carbon and total nitrogen from farmland in northern China. Catena 145 (2016), 92–98.
Zhang, H X, Zhuang, S Y, Qian, H Y, Wang, F, Ji, H B, Spatial variability of the topsoil organic carbon in the Moso bamboo forests of southern China in association with soil properties. PLoS ONE, 10, 2015, e0119175.
Zhang, S L, Huffman, T, Zhang, X Y, Liu, W, Liu, Z H, Spatial distribution of soil nutrient at depth in black soil of Northeast China: A case study of soil available phosphorus and total phosphorus. Journal of Soils and Sediments 14 (2014), 1775–1789.
Zhu, Q C, de Vries, W, Liu, X J, Hao, T X, Zeng, M F, Shen, J L, Zhang, F S, Enhanced acidification in Chinese croplands as derived from element budgets in the period 1980–2010. Science of the Total Environment 618 (2018), 1497–1505.
