scholarly journals Nutrient availability controls the impact of mammalian herbivores on soil carbon and nitrogen pools in grasslands

2020 ◽  
Vol 26 (4) ◽  
pp. 2060-2071 ◽  
Author(s):  
Judith Sitters ◽  
E. R. Jasper Wubs ◽  
Elisabeth S. Bakker ◽  
Thomas W. Crowther ◽  
Peter B. Adler ◽  
...  
Keyword(s):  
Soil Carbon ◽  
Nutrient Availability ◽  
Carbon And Nitrogen ◽  
Mammalian Herbivores ◽  
Soil Carbon And Nitrogen ◽  
Nitrogen Pools ◽  
The Impact

Does Crop Species Diversity Influence Soil Carbon and Nitrogen Pools?

2016 ◽  
Vol 108 (1) ◽  
pp. 427-432 ◽  
Author(s):  
Amitava Chatterjee ◽  
Kelly Cooper ◽  
Aaron Klaustermeier ◽  
R. Awale ◽  
Larry J. Cihacek
Keyword(s):  
Species Diversity ◽  
Soil Carbon ◽  
Crop Species ◽  
Carbon And Nitrogen ◽  
Soil Carbon And Nitrogen ◽  
Nitrogen Pools

scholarly journals Effect of Large-Scale Cultivated Land Expansion on the Balance of Soil Carbon and Nitrogen in the Tarim Basin

Agronomy ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 86 ◽  
Author(s):  
Erqi Xu ◽  
Hongqi Zhang ◽  
Yongmei Xu
Keyword(s):  
Soil Carbon ◽  
Tarim Basin ◽  
Management Practices ◽  
Land Reclamation ◽  
C:N Ratio ◽  
Carbon And Nitrogen ◽  
Cultivation Time ◽  
Soil Carbon And Nitrogen ◽  
Initial Stage ◽  
The Impact

Land reclamation influences the soil carbon and nitrogen cycling, but its scale and time effects on the balance of soil carbon and nitrogen are still uncertain. Taking the Tarim Basin as the study area, the impact of land reclamation on the soil organic carbon (SOC), total nitrogen (TN), and carbon to nitrogen (C:N) ratio was explored by the multiple temporal changes of land use and soil samples. Remote sensing detected that cropland nearly doubled in area from 1978 to 2015. Spatial analysis techniques were used to identify land changes, including the prior land uses and cultivation ages. Using land reclamation history information, a specially designed soil sampling was conducted in 2015 and compared to soil properties in ca. 1978. Results found a decoupling characteristic between the C:N ratio and SOC or TN, indicating that changes in SOC and TN do not correspond directly to changes in the C:N ratio. The land reclamation history coupled with the baseline effect has opposite impacts on the temporal rates of change in SOC, TN and C:N ratios. SOC and TN decreased during the initial stage of conversion to cropland and subsequently recovered with increasing cultivation time. By contrast, the C:N ratio for soils derived from grassland increased at the initial stage but the increase declined when cultivated longer, and the C:N ratio decreased for soils derived from forest and fluctuated with the cultivation time. Lower C:N ratios than the global average and its decreasing trend with increasing reclamation age were found in newly reclaimed croplands from grasslands. Sustainable agricultural management practices are suggested to enhance the accumulation of soil carbon and nitrogen, as well as to increase the C:N ratio to match the nitrogen deposition to a larger carbon sequestration.

Differences in soil carbon and nitrogen pools between afforested pine forests and natural shrublands in a Mediterranean area

2022 ◽  
Vol 170 ◽  
pp. 104262
Author(s):  
A. De Marco ◽  
S.C. Panico ◽  
V. Memoli ◽  
L. Santorufo ◽  
A. Zarrelli ◽  
...  
Keyword(s):  
Soil Carbon ◽  
Mediterranean Area ◽  
Pine Forests ◽  
Carbon And Nitrogen ◽  
Soil Carbon And Nitrogen ◽  
Nitrogen Pools
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