Cropping systems affect paddy soil organic carbon and total nitrogen stocks (in rice-garlic and rice-fava systems) in temperate region of southern China

2017 ◽  
Vol 609 ◽  
pp. 1640-1649 ◽  
Author(s):  
Tao Zhang ◽  
Anqiang Chen ◽  
Jian Liu ◽  
Hongbin Liu ◽  
Baokun Lei ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Total Nitrogen ◽  
Paddy Soil ◽  
Southern China ◽  
Cropping Systems ◽  
Temperate Region

Effects of tillage systems on soil organic carbon and total nitrogen in a double paddy cropping system in Southern China

2015 ◽  
Vol 153 ◽  
pp. 161-168 ◽  
Author(s):  
Jian-Fu Xue ◽  
Chao Pu ◽  
Sheng-Li Liu ◽  
Zhong-Du Chen ◽  
Fu Chen ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Total Nitrogen ◽  
Southern China ◽  
Cropping System ◽  
Tillage Systems

Nitrogen fertilization and cropping systems effects on soil organic carbon and total nitrogen pools under chisel-plow tillage in Illinois

2007 ◽  
Vol 95 (1-2) ◽  
pp. 348-356 ◽  
Author(s):  
Sindhu Jagadamma ◽  
Rattan Lal ◽  
Robert G. Hoeft ◽  
Emerson D. Nafziger ◽  
Eric A. Adee
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Total Nitrogen ◽  
Nitrogen Fertilization ◽  
Cropping Systems ◽  
Nitrogen Pools ◽  
Chisel Plow

scholarly journals Spatial variability of soil organic carbon and total nitrogen in the hilly red soil region of Southern China

2019 ◽  
Vol 31 (6) ◽  
pp. 2385-2394 ◽  
Author(s):  
Xiong Yao ◽  
Kunyong Yu ◽  
Yangbo Deng ◽  
Jian Liu ◽  
Zhuangjie Lai
Keyword(s):  
Spatial Distribution ◽  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Total Nitrogen ◽  
Spatial Dependence ◽  
Ordinary Kriging ◽  
Southern China ◽  
Kriging Interpolation ◽  
Intrinsic Factors ◽  
Geostatistical Approach

Abstract To obtain accurate spatial distribution maps of soil organic carbon (SOC) and total nitrogen (TN) in the Hetian Town in Fujian Province, China, soil samples from three depths (0–20, 20–40, and 40–60 cm) at 59 sampling sites were sampled by using traditional analysis and geostatistical approach. The SOC and TN ranged from 2.26 to 47.54 g kg−1, and from 0.28 to 2.71 g kg−1, respectively. The coefficient of variation for SOC and TN was moderate at 49.02–55.87% for all depths. According to the nugget-to-sill ratio values, a moderate spatial dependence of SOC content and a strong spatial dependence of TN content were found in different soil depths, demonstrating that SOC content was affected by both extrinsic and intrinsic factors while TN content was mainly influenced by intrinsic factors. Indices of cross-validation, such as mean error, mean standardized error, were close to zero, indicating that ordinary kriging interpolation is a reliable method to predict the spatial distribution of SOC and TN in different soil depths. Interpolation using ordinary kriging indicated the spatial pattern of SOC and TN were characterized by higher in the periphery and lower in the middle. To improve the accuracy of spatial interpolation for soil properties, it is necessary and important to incorporate a probabilistic and machine learning methods in the future study.

Predicting spatial distribution of soil organic carbon and total nitrogen in a typical human impacted area

2021 ◽  
pp. 1-19
Author(s):  
Yingcong Ye ◽  
Yefeng Jiang ◽  
Lihua Kuang ◽  
Yi Han ◽  
Zhe Xu ◽  
...  
Keyword(s):  
Spatial Distribution ◽  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Total Nitrogen
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