Spatial distribution of soil organic carbon in the ecologically fragile Horqin Grassland of northeastern China

Geoderma ◽  
2018 ◽  
Vol 325 ◽  
pp. 102-109 ◽  
Author(s):  
Yuqiang Li ◽  
Xuyang Wang ◽  
Yayi Niu ◽  
Jie Lian ◽  
Yongqing Luo ◽  
...  
Keyword(s):  
Spatial Distribution ◽  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Northeastern China

scholarly journals Influence of Slope Gradient and Aspect on Soil Organic Carbon Content in the Region of Niš, Serbia

2021 ◽  
Vol 13 (15) ◽  
pp. 8332
Author(s):  
Snežana Jakšić ◽  
Jordana Ninkov ◽  
Stanko Milić ◽  
Jovica Vasin ◽  
Milorad Živanov ◽  
...  
Keyword(s):  
Land Use ◽  
Spatial Distribution ◽  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Slope Aspect ◽  
Available Phosphorus ◽  
Organic Carbon Content ◽  
Slope Gradient ◽  
Phosphorus And Potassium ◽  
Uncultivated Land

Topography-induced microclimate differences determine the local spatial variation of soil characteristics as topographic factors may play the most essential role in changing the climatic pattern. The aim of this study was to investigate the spatial distribution of soil organic carbon (SOC) with respect to the slope gradient and aspect, and to quantify their influence on SOC within different land use/cover classes. The study area is the Region of Niš in Serbia, which is characterized by complex topography with large variability in the spatial distribution of SOC. Soil samples at 0–30 cm and 30–60 cm were collected from different slope gradients and aspects in each of the three land use/cover classes. The results showed that the slope aspect significantly influenced the spatial distribution of SOC in the forest and vineyard soils, where N- and NW-facing soils had the highest level of organic carbon in the topsoil. There were no similar patterns in the uncultivated land. No significant differences were found in the subsoil. Organic carbon content was higher in the topsoil, regardless of the slope of the terrain. The mean SOC content in forest land decreased with increasing slope, but the difference was not statistically significant. In vineyards and uncultivated land, the SOC content was not predominantly determined by the slope gradient. No significant variations across slope gradients were found for all observed soil properties, except for available phosphorus and potassium. A positive correlation was observed between SOC and total nitrogen, clay, silt, and available phosphorus and potassium, while a negative correlation with coarse sand was detected. The slope aspect in relation to different land use/cover classes could provide an important reference for land management strategies in light of sustainable development.

scholarly journals Topographic Position, Land Use and Soil Management Effects on Soil Organic Carbon (Vineyard Region of Niš, Serbia)

Agronomy ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1438
Author(s):  
Snežana Jakšić ◽  
Jordana Ninkov ◽  
Stanko Milić ◽  
Jovica Vasin ◽  
Milorad Živanov ◽  
...  
Keyword(s):  
Land Use ◽  
Surface Layer ◽  
Spatial Distribution ◽  
Soil Erosion ◽  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Soil Compaction ◽  
Soil Management ◽  
Forest Land ◽  
Topographic Position

Spatial distribution of soil organic carbon (SOC) is the result of a combination of various factors related to both the natural environment and anthropogenic activities. The aim of this study was to examine (i) the state of SOC in topsoil and subsoil of vineyards compared to the nearest forest, (ii) the influence of soil management on SOC, (iii) the variation in SOC content with topographic position, (iv) the intensity of soil erosion in order to estimate the leaching of SOC from upper to lower topographic positions, and (v) the significance of SOC for the reduction of soil’s susceptibility to compaction. The study area was the vineyard region of Niš, which represents a medium-sized vineyard region in Serbia. About 32% of the total land area is affected, to some degree, by soil erosion. However, according to the mean annual soil loss rate, the total area is classified as having tolerable erosion risk. Land use was shown to be an important factor that controls SOC content. The vineyards contained less SOC than forest land. The SOC content was affected by topographic position. The interactive effect of topographic position and land use on SOC was significant. The SOC of forest land was significantly higher at the upper position than at the middle and lower positions. Spatial distribution of organic carbon in vineyards was not influenced by altitude, but occurred as a consequence of different soil management practices. The deep tillage at 60–80 cm, along with application of organic amendments, showed the potential to preserve SOC in the subsoil and prevent carbon loss from the surface layer. Penetrometric resistance values indicated optimum soil compaction in the surface layer of the soil, while low permeability was observed in deeper layers. Increases in SOC content reduce soil compaction and thus the risk of erosion and landslides. Knowledge of soil carbon distribution as a function of topographic position, land use and soil management is important for sustainable production and climate change mitigation.

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

scholarly journals Spatial distribution and stability mechanisms of soil organic carbon in a tropical montane rainforest

2021 ◽  
Vol 129 ◽  
pp. 107965
Author(s):  
Wenjie Liu ◽  
Yamin Jiang ◽  
Qiu Yang ◽  
Huai Yang ◽  
Yide Li ◽  
...  
Keyword(s):  
Spatial Distribution ◽  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Montane Rainforest ◽  
Tropical Montane Rainforest

Spatial distribution of soil organic carbon stocks in Masson pine (Pinus massoniana) forests in subtropical China

CATENA ◽  
2019 ◽  
Vol 178 ◽  
pp. 189-198 ◽  
Author(s):  
Xiong Yao ◽  
Kunyong Yu ◽  
Yangbo Deng ◽  
Qi Zeng ◽  
Zhuangjie Lai ◽  
...  
Keyword(s):  
Spatial Distribution ◽  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Pinus Massoniana ◽  
Carbon Stocks ◽  
Subtropical China ◽  
Masson Pine ◽  
Soil Organic Carbon Stocks

Effect of cultivation history on soil organic carbon status of arable land in northeastern China

Geoderma ◽  
2019 ◽  
Vol 342 ◽  
pp. 55-64 ◽  
Author(s):  
Yan Wang ◽  
Shuai Wang ◽  
Kabindra Adhikari ◽  
Qiubing Wang ◽  
Yueyu Sui ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Arable Land ◽  
Northeastern China ◽  
Cultivation History

Soil organic carbon in semiarid alpine regions: the spatial distribution, stock estimation, and environmental controls

2019 ◽  
Vol 19 (10) ◽  
pp. 3427-3441 ◽  
Author(s):  
Meng Zhu ◽  
Qi Feng ◽  
Mengxu Zhang ◽  
Wei Liu ◽  
Ravinesh C. Deo ◽  
...  
Keyword(s):  
Spatial Distribution ◽  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Alpine Regions ◽  
Environmental Controls ◽  
Stock Estimation

scholarly journals Soil organic carbon in peninsular Spain: Influence of environmental factors and spatial distribution

Geoderma ◽  
2020 ◽  
Vol 370 ◽  
pp. 114365 ◽  
Author(s):  
R. Calvo de Anta ◽  
E. Luís ◽  
M. Febrero-Bande ◽  
J. Galiñanes ◽  
F. Macías ◽  
...  
Keyword(s):  
Spatial Distribution ◽  
Environmental Factors ◽  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Peninsular Spain
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