Carbon storage and light fraction C in a grassland Dark Gray Chernozem soil as influenced by N and S fertilization

1999 ◽  
Vol 79 (2) ◽  
pp. 317-320 ◽  
Author(s):  
M. Nyborg ◽  
S. S. Malhi ◽  
E. D. Solberg ◽  
R. C. Izaurralde
Keyword(s):  
Field Experiment ◽  
Soil Carbon ◽  
Key Words ◽  
Carbon Storage ◽  
Soil Depth ◽  
Light Fraction ◽  
Chernozem Soil ◽  
Soil Carbon Storage ◽  
S Fertilizers

A field experiment was conducted at Canwood, Saskatchewan to determine if annual applications of nitrogen (112 kg N ha−1) and sulphur (11 kg S ha−1) fertilizers to grass over 13 yr (1980 to 1992) could increase storage of total C (TC) and light fraction C (LFC) in a Dark Gray Chernozem soil. Hay was removed from the plots every year. The increase in mass of TC in the 0- to 30-cm soil depth from NS fertilizer was 3.88 Mg C ha−1. However, the increase in mass of LFC from NS was 9.50 Mg C ha−1, and most of the increase was found in the 0- to 5-cm soil depth. Key words: Soil carbon storage, light fraction carbon, N and S fertilizers

scholarly journals Estimation of soil carbon storage under mono-specific Enhalus acoroides meadows in Pari Island, Indonesia

2021 ◽  
Vol 944 (1) ◽  
pp. 012065
Author(s):  
H Rifai ◽  
S Rahmawati ◽  
D Nurdiansah ◽  
Afdal
Keyword(s):  
Soil Carbon ◽  
Bulk Density ◽  
Carbon Storage ◽  
Soil Depth ◽  
Global Climate ◽  
Soil Core ◽  
Soil Carbon Storage ◽  
Seagrass Meadows ◽  
Enhalus Acoroides ◽  
Seagrass Ecosystems

Abstract Large seagrass meadows in Indonesia are predicted to have a significant ability in capturing and storing carbon and are useful to mitigate global climate change. However, most of the available data are derived from short-term carbon storage of living biomass, whereas data on long-term carbon storage in the soil is still limited. This study, therefore, aims to measure soil carbon storage in mono-specific Enhalus acoroides meadows in Pari Island. A total of nine soil cores was collected in a 100×100 m2 area. The parameters were soil depth, dry bulk density (DBD), and Corg content. We applied a PVC corer with 7.4 cm in diameter and 80 cm in length to collect the soil. The length of the soil core varied between 8 and 67 cm. The mean (±SE) of soil dry bulk density is 0.98±0.04 gr/cm3 and the median is 1.1 gr/cm3, while Corg content is 2.1±0.1% soil DW (mean±SE) and 1.9% (median). E. acoroides vegetation in Pari Island stores around 63 Mg Corg/ha organic carbon in 8-67cm or 34cm (mean depth) of topsoil. Carbon storage of these mono-specific meadows is comparable to soil carbon storage in the seagrass ecosystems per hectare areas on national, regional, and global levels.

Modeling Soil Carbon Storage in the “Espinal” Agroecosystem of Central Chile

2008 ◽  
Vol 22 (2) ◽  
pp. 148-158 ◽  
Author(s):  
Neal Stolpe ◽  
Cristina Muñoz ◽  
Erick Zagal ◽  
Carlos Ovalle
Keyword(s):  
Soil Carbon ◽  
Carbon Storage ◽  
Soil Carbon Storage ◽  
Central Chile

Long‐term effect of tillage and straw retention in conservation agriculture systems on soil carbon storage

2021 ◽  
Author(s):  
Beatriz Gómez‐Muñoz ◽  
Lars Stoumann Jensen ◽  
Lars Munkholm ◽  
Jørgen Eivind Olesen ◽  
Elly Møller Hansen ◽  
...  
Keyword(s):  
Soil Carbon ◽  
Carbon Storage ◽  
Conservation Agriculture ◽  
Term Effect ◽  
Soil Carbon Storage ◽  
Long Term Effect ◽  
Straw Retention ◽  
Agriculture Systems

scholarly journals Element interactions limit soil carbon storage

2006 ◽  
Vol 103 (17) ◽  
pp. 6571-6574 ◽  
Author(s):  
K.-J. van Groenigen ◽  
J. Six ◽  
B. A. Hungate ◽  
M.-A. de Graaff ◽  
N. van Breemen ◽  
...  
Keyword(s):  
Soil Carbon ◽  
Carbon Storage ◽  
Soil Carbon Storage ◽  
Element Interactions

Prospects for soil carbon storage on recently retired marginal farmland

2021 ◽  
pp. 150738
Author(s):  
Annalisa C.M. Mazzorato ◽  
Ellen H. Esch ◽  
Andrew S. MacDougall
Keyword(s):  
Soil Carbon ◽  
Carbon Storage ◽  
Soil Carbon Storage

scholarly journals A dual isotope approach to isolate soil carbon pools of different turnover times

2013 ◽  
Vol 10 (12) ◽  
pp. 8067-8081 ◽  
Author(s):  
M. S. Torn ◽  
M. Kleber ◽  
E. S. Zavaleta ◽  
B. Zhu ◽  
C. B. Field ◽  
...  
Keyword(s):  
Environmental Change ◽  
Soil Carbon ◽  
Carbon Storage ◽  
Co2 Efflux ◽  
Carbon Turnover ◽  
Soil Carbon Storage ◽  
Density Fraction ◽  
Dual Isotope ◽  
Slow Cycling ◽  
Soil Carbon Turnover

Abstract. Soils are globally significant sources and sinks of atmospheric CO2. Increasing the resolution of soil carbon turnover estimates is important for predicting the response of soil carbon cycling to environmental change. We show that soil carbon turnover times can be more finely resolved using a dual isotope label like the one provided by elevated CO2 experiments that use fossil CO2. We modeled each soil physical fraction as two pools with different turnover times using the atmospheric 14C bomb spike in combination with the label in 14C and 13C provided by an elevated CO2 experiment in a California annual grassland. In sandstone and serpentine soils, the light fraction carbon was 21–54% fast cycling with 2–9 yr turnover, and 36–79% slow cycling with turnover slower than 100 yr. This validates model treatment of the light fraction as active and intermediate cycling carbon. The dense, mineral-associated fraction also had a very dynamic component, consisting of ∼7% fast-cycling carbon and ∼93% very slow cycling carbon. Similarly, half the microbial biomass carbon in the sandstone soil was more than 5 yr old, and 40% of the carbon respired by microbes had been fixed more than 5 yr ago. Resolving each density fraction into two pools revealed that only a small component of total soil carbon is responsible for most CO2 efflux from these soils. In the sandstone soil, 11% of soil carbon contributes more than 90% of the annual CO2 efflux. The fact that soil physical fractions, designed to isolate organic material of roughly homogeneous physico-chemical state, contain material of dramatically different turnover times is consistent with recent observations of rapid isotope incorporation into seemingly stable fractions and with emerging evidence for hot spots or micro-site variation of decomposition within the soil matrix. Predictions of soil carbon storage using a turnover time estimated with the assumption of a single pool per density fraction would greatly overestimate the near-term response to changes in productivity or decomposition rates. Therefore, these results suggest a slower initial change in soil carbon storage due to environmental change than has been assumed by simpler (one-pool) mass balance calculations.

Sign in / Sign up

Export Citation Format

Share Document