Impact of geochemical and geomechanical changes on CO 2 sequestration potential in sandstone and limestone aquifers

2019 ◽  
Vol 9 (5) ◽  
pp. 905-923
Author(s):  
Arshad Raza ◽  
Raoof Gholami ◽  
Minou Rabiei ◽  
Vamegh Rasouli ◽  
Reza Rezaee ◽  
...  
Keyword(s):  
Sequestration Potential ◽  
Limestone Aquifers

A new remote sensing-based carbon sequestration potential index (CSPI): A tool to support land carbon management

2021 ◽  
Vol 494 ◽  
pp. 119343
Author(s):  
Adrián Pascual ◽  
Christian P. Giardina ◽  
Paul C. Selmants ◽  
Leah J. Laramee ◽  
Gregory P. Asner
Keyword(s):  
Remote Sensing ◽  
Carbon Sequestration ◽  
Carbon Management ◽  
Carbon Sequestration Potential ◽  
Potential Index ◽  
Sequestration Potential

scholarly journals Cover Crop Contributions to Improve the Soil Nitrogen and Carbon Sequestration in Almond Orchards (SW Spain)

Agronomy ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 387
Author(s):  
Miguel A. Repullo-Ruibérriz de Torres ◽  
Manuel Moreno-García ◽  
Rafaela Ordóñez-Fernández ◽  
Antonio Rodríguez-Lizana ◽  
Belén Cárceles Rodríguez ◽  
...  
Keyword(s):  
Carbon Sequestration ◽  
Soil Erosion ◽  
Soil Nitrogen ◽  
Cover Crops ◽  
Cover Crop ◽  
Nitrate Content ◽  
Sw Spain ◽  
Sequestration Potential ◽  
Almond Orchards ◽  
Shallow Soils

Almond (Prunus dulcis Mill. [D.A. Webb]) is the third most widely spread crop in Spain and has traditionally been cultivated in marginal areas and shallow soils under rainfed conditions. However, it recently has been progressively introduced in flat irrigated areas. The implementation of cover crops in the inter-rows of woody crops has been proven as a suitable strategy to reduce the runoff and soil erosion but they also can boost soil quality and health. A field experiment was conducted during two-monitoring seasons to examine the soil nitrogen and carbon sequestration potential of three seeded cover crops [barley (Hordeum vulgare L.), hairy vetch (Vicia villosa Roth), and a mixture of 65% barley and 35% vetch] and a control of spontaneous flora in irrigated almond orchards (SW Spain). Here, we show that barley provided the highest biomass amount, followed by mixture covers, vetch, and the control treatment. Also, vetch covered the soil faster in the growing stage, but its residues were decomposed easier than barley and mixture treatments during the decomposition period after mowing, providing less soil protection when the risk of water erosion with autumn rainfall is high. On the other hand, vetch improved soil nitrate content by over 35% with respect to barley and mixture treatments at 0–20 cm soil depth throughout the studied period. In addition, a greater carbon input to the soil was determined in the barley plot. That is, the mixture and barley cover crops had higher potential for carbon sequestration, augmenting the soil organic carbon by more than 1.0 Mg ha−1 during the study period. Thus, taking into consideration the findings of the present experiment, the establishment of a seeded cover crop would be more advisable than spontaneous flora to mitigate soil erosion, enhancing soil fertility and carbon sequestration in irrigated almond plantations in Mediterranean semi-arid regions.

Valorization and Evaluation of Terminalia Ivorensis Fibrous Waste for Its Environmental Sequestration Potential for Industrial Anionic Dyes in Aqua System

2021 ◽  
pp. 1-18
Author(s):  
Abimbola M. Olatunde ◽  
Martins O. Omorogie ◽  
Michael T. Agbadaola ◽  
Oreoluwa O. Adesina ◽  
Elizabeth O. Adeleye ◽  
...  
Keyword(s):  
Anionic Dyes ◽  
Sequestration Potential

scholarly journals Discrepancies between Global Forest Net Primary Productivity Estimates Derived from MODIS and Forest Inventory Data and Underlying Factors

2021 ◽  
Vol 13 (8) ◽  
pp. 1441
Author(s):  
Jin Han Park ◽  
Jianbang Gan ◽  
Chan Park
Keyword(s):  
Low Income ◽  
Primary Productivity ◽  
Carbon Stock ◽  
Forest Cover ◽  
Net Primary Productivity ◽  
Estimation Methods ◽  
Future Research ◽  
Important Indicator ◽  
Sequestration Potential ◽  
Carbon Losses

The net primary productivity (NPP) of a forest is an important indicator of its potential for the provision of ecosystem services such as timber, carbon, and biodiversity. However, accurately and consistently quantifying global forest NPP remains a challenge in practice. We converted carbon stock changes using the Global Forest Resources Assessment (FRA) data and carbon losses associated with disturbances and timber removals into an NPP equivalent measurement (FRA NPP*) and compared it with the NPP derived from the MODIS satellite data (MOD17 NPP) for the world’s forests. We found statistically significant differences between the two NPP estimates, with the FRA NPP* being lower than the MOD17 NPP; the differences were correlated with forest cover, normalized difference vegetation index (NDVI), and GDP per capita in countries, and may also stem from the NPP estimation methods and scopes. While the former explicitly accounts for carbon losses associated with timber removals and disturbances, the latter better reflects the principles of photosynthesis. The discrepancies between the two NPP estimates increase in countries with a low income or low forest cover, calling for enhancing their forest resource assessment capacity. By identifying the discrepancies and underlying factors, we also provide new insights into the relationships between the MOD17 NPP and global forest carbon stock estimates, motivating and guiding future research to improve the robustness of quantifying global forest NPP and carbon sequestration potential.

scholarly journals Seasonal biological carryover dominates northern vegetation growth

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Xu Lian ◽  
Shilong Piao ◽  
Anping Chen ◽  
Kai Wang ◽  
Xiangyi Li ◽  
...  
Keyword(s):  
Northern Hemisphere ◽  
Growing Season ◽  
Ecosystem Dynamics ◽  
Environmental Drivers ◽  
Subsequent Growth ◽  
Ecosystem Models ◽  
Carryover Effect ◽  
Vegetation Growth ◽  
Sequestration Potential ◽  
Future Warming

AbstractThe state of ecosystems is influenced strongly by their past, and describing this carryover effect is important to accurately forecast their future behaviors. However, the strength and persistence of this carryover effect on ecosystem dynamics in comparison to that of simultaneous environmental drivers are still poorly understood. Here, we show that vegetation growth carryover (VGC), defined as the effect of present states of vegetation on subsequent growth, exerts strong positive impacts on seasonal vegetation growth over the Northern Hemisphere. In particular, this VGC of early growing-season vegetation growth is even stronger than past and co-occurring climate on determining peak-to-late season vegetation growth, and is the primary contributor to the recently observed annual greening trend. The effect of seasonal VGC persists into the subsequent year but not further. Current process-based ecosystem models greatly underestimate the VGC effect, and may therefore underestimate the CO2 sequestration potential of northern vegetation under future warming.

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