Nutrient addition enhances carbon sequestration in soil but not plant biomass in a coastal shelter plantation in South China

2021 ◽  
Author(s):  
Yingxu Fan ◽  
Faming Wang ◽  
Emma J. Sayer ◽  
Zhanfeng Liu ◽  
Qifeng Mo ◽  
...  
Keyword(s):  
Carbon Sequestration ◽  
South China ◽  
Plant Biomass ◽  
Nutrient Addition

Mechanisms regulating spatial changes in grassland productivity following nutrient addition in northern China

2019 ◽  
Vol 41 (1) ◽  
pp. 83
Author(s):  
Na Zhao ◽  
Xinqing Shao ◽  
Chao Chen ◽  
Jiangwen Fan ◽  
Kun Wang
Keyword(s):  
Functional Traits ◽  
Plant Biomass ◽  
Northern China ◽  
Functional Trait ◽  
Community Response ◽  
Nutrient Addition ◽  
Leymus Chinensis ◽  
Ecosystem Functions ◽  
Natural Grasslands ◽  
Key Species

Plant biomass is the most fundamental component of ecosystems. The spatial stability of plant biomass is important, and the mechanisms regulating plant biomass spatial variability in variable environments are a central focus of ecology. However, they have rarely been explored. We conducted an experiment to test how diversity and functional traits affected variation in biomass and community response to nutrient availability in three plant communities: natural; forb, legume, and bunchgrass; and rhizomatous grass. We found that biomass stability rarely changed with increasing taxonomic species richness and functional group richness but declined with increasing Shannon–Weiner indices (the combination of richness and evenness) and functional trait diversity. However, differences in plant species composition generated different responses in both the amount and spatial variation of biomass following nutrient addition. Because rhizomatous grasses are weakly competitive in nutrient-poor conditions, interaction between resource-acquisitive (grass) and stress-tolerant (forb) species in the natural community conferred the greatest overall stability. The rapid nutrient acquisition ability of the rhizomatous grass Leymus chinensis was stimulated in nutrient-abundant conditions. The functional traits of this dominant species overrode the diversity interaction effects of the natural and forb, legume, and bunchgrass communities. This ultimately resulted in the rhizomatous grass community being the most stable. Community stability was strongly determined by a few key species, particularly rhizomatous grasses, rather than by the average response of all species, thereby supporting the mass ratio hypothesis. Our results indicated that rhizomatous grasses could provide vegetative productivity to reduce soil loss and prevent degradation of L. chinensis-dominant grassland. Thus, protecting specific species is critical for maintaining rangeland ecosystem functions. Moreover, the conservation importance of grasses, non-leguminous forbs, legumes, or even rare species could not be ignored. Maintaining stability mechanisms in natural grasslands is complex, and therefore, further studies need to focus on finding a unified mechanism that can regulate appreciable biomass variation under shifting environmental conditions.

scholarly journals A study on carbon sequestration in natural forests of India

2012 ◽  
Vol 4 (1) ◽  
pp. 132-136 ◽  
Author(s):  
Poonam Khurana
Keyword(s):  
Carbon Sequestration ◽  
Native Species ◽  
Plant Biomass ◽  
National Level ◽  
Human Beings ◽  
Planted Forest ◽  
Green House Gases ◽  
Green House ◽  
Leaf Shedding ◽  
Indian Forests

Among the global common concerns, climate change has been identified as the most important environmental challenge faced by human beings. Emission of carbon dioxide, methane, nitrous oxide, chlorofluorocarbons and hydrocarbons are identified as green house gases causing warming of earth globally. Of these gases, CO2 alone accounts for 60 percent share. The most practical way of removing excess carbon from atmosphere and storing it in to a biological system is by absorption of atmospheric CO2 into the physiological system, plant biomass and finally into the soil . Carbon is thus sequestered into the plants and then the animals. Studies have established that Carbon sequestration by trees and forest could provide relatively low cost net emission reduction. Carbon management in forest is therefore one of the most important agenda in India in 21st century in context of green house gases effect and mitigation of global climate changes. Studies indicated that Indian forests share 1,083.81 MtC in the year 1994 to 3,907.67 MtC in the year 1993. Estimated rate of Carbon flux in selectedIndian planted forest reveals that planted forests of short rotation tree species with regular leaf shedding patterns have more capacity for carbon sequestering in litter which decomposes more rapidly than those with annual or bimodal leaf shedding patterns. Mixed planted forest of exotic and native species could be more efficient in sequestering Carbon than the monocultures. This contribution reviews Carbon sequestration in Indian forests at national level and site-specific situations;and elaborates some possible opportunities for sustainable Carbon forestry.

scholarly journals Tidal dynamics and mangrove carbon sequestration during the Oligo–Miocene in the South China Sea

2017 ◽  
Vol 8 (1) ◽  
Author(s):  
Daniel S. Collins ◽  
Alexandros Avdis ◽  
Peter A. Allison ◽  
Howard D. Johnson ◽  
Jon Hill ◽  
...  
Keyword(s):  
Carbon Sequestration ◽  
South China Sea ◽  
South China ◽  
The South China Sea ◽  
The South ◽  
Tidal Dynamics ◽  
China Sea

scholarly journals Carbon Sequestration of Soil and Plants along IH-35 in Bexar County, Texas

2019 ◽  
Vol 271 ◽  
pp. 04001
Author(s):  
Lauren Rangel ◽  
Vikram Kapoor ◽  
Jeffrey Hutchinson ◽  
Samer Dessouky
Keyword(s):  
Carbon Sequestration ◽  
Carbon Content ◽  
Field Data ◽  
Plant Biomass ◽  
Soil Samples ◽  
Loss On Ignition ◽  
Vegetative Cover ◽  
Bexar County ◽  
Carbon Sequestration Potential ◽  
Sequestration Potential

Soil and vegetation were evaluated along IH-35 within Bexar County for carbon content. The objectives of this study were to evaluate the vegetative composition and carbon sequestration potential of vegetation along IH-35. Three 20 m transects were placed at each site and percent vegetative cover was estimated and above ground plant biomass and soil was collected from three 0.25 m2 subplots along each transect. Plant and soil samples were analyzed for carbon content using the loss-on-ignition method. Two non-native grasses, bermudagrass and King Ranch bluestem, were the dominant cover. Bermudagrass was more efficient in absorbing CO2 compared to King Ranch bluestem. The top 10 cm of soil in all samples contained more organic carbon than the lower 10 cm. Collection of field data has been completed and the soil and plant carbon content is being analyzed with the final results presented at the conference.

scholarly journals Aboveground biomass and corresponding carbon sequestration ability of four major forest types in south China

2012 ◽  
Vol 58 (13) ◽  
pp. 1551-1557 ◽  
Author(s):  
QingQing Chen ◽  
WeiQiang Xu ◽  
ShengGong Li ◽  
ShengLei Fu ◽  
JunHua Yan
Keyword(s):  
Carbon Sequestration ◽  
South China ◽  
Aboveground Biomass ◽  
Forest Types

scholarly journals Estimationof Biomass and Carbon Sequestration by Non-Destructive Method in Dry Deciduous Forest of Shivpuri, Madhya Pradesh, India

2021 ◽  
Vol 943 (1) ◽  
pp. 012020
Author(s):  
S Bung ◽  
S Rajmohan ◽  
S Bhutia ◽  
H Pandey ◽  
M Mitra
Keyword(s):  
Carbon Sequestration ◽  
Carbon Storage ◽  
Native Species ◽  
Deciduous Forest ◽  
Plant Biomass ◽  
Single Species ◽  
Madhya Pradesh ◽  
Total Biomass ◽  
Boswellia Serrata ◽  
Non Destructive

Abstract The study aims to assess the plant biomass and carbon storage potential of the forests of Shivpuri, Madhya Pradesh, India. The study was carried out in Satanwada Range in Shivpuri Forest Division. A total of 96 quadrats of 10×10 m2 were laid. The non-destructive algometric method was used to estimate carbon sequestration. The results show that Acacia catechu (202 individuals/ha) dominated the forest, followed by Anogeissus pendula (90 individuals/ha). The total biomass of the forest was estimated to be 34.72±0.41t/ha, with Boswellia serrata (7.943t) recording the highest. The minimum biomass was recorded for Grewia sp (0.06t). The highest carbon content was found in B. serrata (3.97t; 25 individuals) followed by A. Catechu (2.92t; 195 individuals). Although A. catechu was dominant in the area, due to its lower girth class and young age, the net carbon storage was less than that of B. serrata. It was found that plots with higher carbon stock had higher species richness than plots composed of single species. Therefore, plantations of mixed native species should be preferred for future restoration activities as they are more efficient in sequestrating carbon than monoculture plantations.

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