Temporal and Spatial Variability Analysis of Soil pH in Baoshan Tobacco-Growing Area

doi:10.14088/j.cnki.issn0439-8114.2018.09.009

Abstract

Abstract: The temporal and spatial variability of the soil pH value in Baoshan tobacco-growing areas of Yunnan province was studied by using the traditional statistical methods and the geostatistics method combined with GIS technology. The results showed that the pH value distribution in the sample of 5.5 to 6.5 of the tobacco planted in the tobacco-growing area in 2011 was 38.3% and decreased to 32.0% in 2016. The pH variation belonged to medium variation. The nugget/sill values of soil pH were 40.9% and 25.3%,and the range was 41.5 km and 47.2 km respectively in 2011 and 2016. The spatial correlation was moderate. The Kriging optimal interpolation method showed that the soil pH decreased with the increase of the year,and gradually moved closer to the central area from the northwest and the southeast,the central area was not affected much.

Key words: planted tobacco soil pH, temporal and spatial variability, geostatistics, GIS

CLC Number:

S151.9

ZHOU Jie-wen, ZHANG Fa-ming, LI Hai-ping, ZHOU Ji-heng, XIAO Zhi-xing, DUAN Zhi-chao, ZHANG Yi, LI Qiang. Temporal and Spatial Variability Analysis of Soil pH in Baoshan Tobacco-Growing Area[J]. HUBEI AGRICULTURAL SCIENCES, 2018, 57(9): 37-41.

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