Decrease of soil acidity has greater effects than increase of aboveground carbon inputs on soil organic carbon in terrestrial ecosystems of China under nitrogen enrichment

2021 ◽  
Author(s):  
Xiaofei Lu ◽  
Frank S. Gilliam ◽  
Jieyun Guo ◽  
Enqing Hou ◽  
Yuanwen Kuang
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Soil Acidity ◽  
Terrestrial Ecosystems ◽  
Nitrogen Enrichment ◽  
Aboveground Carbon

scholarly journals Importance of suberin biopolymer in plant function, contributions to soil organic carbon and in the production of bio-derived energy and materials

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Anne E. Harman-Ware ◽  
Samuel Sparks ◽  
Bennett Addison ◽  
Udaya C. Kalluri
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Biomass Conversion ◽  
Terrestrial Ecosystems ◽  
Bioenergy Crops ◽  
System Management ◽  
Performance Improvements ◽  
Future Technologies ◽  
Analysis Models ◽  
Analytical Approaches

AbstractSuberin is a hydrophobic biopolymer of significance in the production of biomass-derived materials and in biogeochemical cycling in terrestrial ecosystems. Here, we describe suberin structure and biosynthesis, and its importance in biological (i.e., plant bark and roots), ecological (soil organic carbon) and economic (biomass conversion to bioproducts) contexts. Furthermore, we highlight the genomics and analytical approaches currently available and explore opportunities for future technologies to study suberin in quantitative and/or high-throughput platforms in bioenergy crops. A greater understanding of suberin structure and production in lignocellulosic biomass can be leveraged to improve representation in life cycle analysis and techno-economic analysis models and enable performance improvements in plant biosystems as well as informed crop system management to achieve economic and environmental co-benefits.

scholarly journals Soil Organic Carbon Stocks in Terrestrial Ecosystems of China: Revised Estimation on Three-Dimensional Surfaces

2016 ◽  
Vol 8 (10) ◽  
pp. 1003 ◽  
Author(s):  
Rui Zhou ◽  
Xianzhang Pan ◽  
Hongxu Wei ◽  
Xianli Xie ◽  
Changkun Wang ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Three Dimensional ◽  
Terrestrial Ecosystems ◽  
Carbon Stocks ◽  
Soil Organic Carbon Stocks

Changes in soil organic carbon of terrestrial ecosystems in China: A mini-review

2010 ◽  
Vol 53 (7) ◽  
pp. 766-775 ◽  
Author(s):  
Yao Huang ◽  
WenJuan Sun ◽  
Wen Zhang ◽  
YongQiang Yu
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Terrestrial Ecosystems

scholarly journals Soil Organic Carbon Mineralization and its Temperature Sensitivity Along a Vegetation Restoration Gradient in Subtropical China

2021 ◽  
Author(s):  
Xiong Fang ◽  
Haozhao Sun ◽  
Yunpeng Huang ◽  
Jundi Liu ◽  
Yulin Zhu ◽  
...  
Keyword(s):  
Soil Moisture ◽  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Temperature Sensitivity ◽  
Interactive Effect ◽  
Carbon Mineralization ◽  
Terrestrial Ecosystems ◽  
Vegetation Restoration ◽  
Soil Organic Carbon Mineralization ◽  
Soc Mineralization

Abstract Background and aims Soil organic carbon (SOC) mineralization produces important CO2 flux from terrestrial ecosystems which can provide feedbacks to climates. Vegetation restoration can affect SOC mineralization and its temperature sensitivity (Q10), but how this effect is related to soil moisture remains uncertain. Methods We performed a laboratory incubation using soils of different vegetation restoration stages (i.e., degraded vegetation [DS], plantation [PS], and secondary natural forest [SFS]) maintained under different moisture and temperature conditions to explore the combined effects of vegetation restoration and soil moisture on SOC mineralization and Q10. Results We found that cumulative SOC mineralization in PS and SFS were about 11.7 times higher than that in the DS, associated with higher SOC content and microbial biomass. Increased soil moisture and temperature led to higher SOC mineralization in the SFS and PS. However, in the DS, soil moisture did not affect SOC mineralization, but temperature enhancement solely increased (158.7%) SOC mineralization at the 60%MWHC treatment. Furthermore, significant interactive effect of vegetation restoration and soil moisture on Q10 was detected. At the 60%MWHC treatment, Q10 declined with vegetation restoration age. Nevertheless, at the 30%MWHC treatment, Q10 was lower in the DS than that in the PS. Higher soil moisture did not affect Q10 in the PS and SFS, but enhanced Q10 in the DS. Conclusions Our results highlight that the responses of SOC mineralization and Q10 to vegetation restoration were highly dependent on soil moisture and substrate availability, and vegetation restoration reduced the influence of soil moisture on Q10.

scholarly journals Carbon Stocks in Miombo Woodlands: Evidence from over 50 Years

Forests ◽  
2021 ◽  
Vol 12 (7) ◽  
pp. 862
Author(s):  
Medha Bulusu ◽  
Christopher Martius ◽  
Jessica Clendenning
Keyword(s):  
Land Use ◽  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Carbon Stocks ◽  
Dry Forest ◽  
Miombo Woodlands ◽  
Old Growth ◽  
Aboveground Carbon ◽  
Wide Range ◽  
Soc Stocks

Miombo woodlands are extensive dry forest ecosystems in central and southern Africa covering ≈2.7 million km2. Despite their vast expanse and global importance for carbon storage, the long-term carbon stocks and dynamics have been poorly researched. The objective of this paper was to present and summarize the evidence gathered on aboveground carbon (AGC) and soil organic carbon (SOC) stocks of miombo woodlands from the 1960s to mid-2018 through a literature review. We reviewed the data to find out to what extent aboveground carbon and soil organic carbon stocks are found in miombo woodlands and further investigated if are there differences in carbon stocks based on woodland categories (old-growth, disturbed and re-growth). A review protocol was used to identify 56 publications from which quantitative data on AGC and SOC stocks were extracted. We found that the mean AGC in old-growth miombo (45.8 ± 17.8 Mg C ha−1), disturbed miombo (26.7 ± 15 Mg C ha−1), and regrowth miombo (18.8 ± 16.8 Mg C ha−1) differed significantly. Data on rainfall, stand age, and land-use suggested that the variability in aboveground carbon is site-specific, relating to climatic and geographic conditions as well as land-use history. SOC stocks in both old-growth and re-growth miombo were found to vary widely. It must be noted these soil data are provided only for information; they inconsistently refer to varying soil depths and are thus difficult to interpret. The wide range reported suggests a need for further studies which are much more systematic in method and reporting. Other limitations of the dataset include the lack of systematic sampling and lack of data in some countries, viz. Angola and Democratic Republic of the Congo.

scholarly journals Comparative Study on Khar Mulching and Forest Litter Mulching: Soil Nutrient Dynamics in Ginger Cultivation

2019 ◽  
Vol 7 (3) ◽  
pp. 335-340
Author(s):  
Dipendra Aryal ◽  
Babu Ram Khanal ◽  
Pawan Devkota ◽  
Kiran Kumar Gupta
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Soil Sample ◽  
Soil Ph ◽  
Soil Nitrogen ◽  
Soil Acidity ◽  
Nutrient Dynamics ◽  
Simple Random Sampling ◽  
Forest Litter ◽  
Available Phosphorus

A study conducted to assess the fertility status under Khar(Pragmites karka) and forest litter mulching practices on ginger cultivation. Ginger field with mulching of Khar and ginger field with mulching of forest litter was identified as two strata to collect soil sample. Thirty soil samples collected from each mulching practices. Simple random sampling procedure was followed to collect soil sample within the strata. Soil fertility parameters such as soil pH, Soil organic carbon, Nitrogen, Phosphorus, Potassium were analyzed for different mulching system. Mulching material significantly effect on Soil pH, Soil organic carbon and soil nitrogen. Soil acidity was found lower with forest litter mulch (5.53) but it was found higher for Khar mulch (5.78). Soil organic carbon was found higher in ginger field with Khar mulch (2.31%) and found lower with forest litter mulch (1.97%). Soil nitrogen level was found higher in ginger field with Khar mulch (0.20%) and found lower with forest litter mulch (0.17%). Soil available phosphorus and Potassium were not found significantly different in both type of mulching system. The result obtained from the study indicates that ginger field with Khar mulch result soil with higher soil organic carbon and Nitrogen. Mulching decision can also be made after testing the soil of respective ginger growing field. Appropriate liming could be done so that it could reduce the soil acidity problems. Int. J. Appl. Sci. Biotechnol. Vol 7(3): 335-340  

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