Efecto de la quema en caña de azúcar sobre el carbono de un Andisol

2019 ◽  
Author(s):  
Johnny Montenegro Ballestero ◽  
Marcos Chaves Solera
Keyword(s):  
Climate Change ◽  
Costa Rica ◽  
Greenhouse Gases ◽  
Climate Change Mitigation ◽  
Tropical Crops ◽  
Change Mitigation

Efecto de la quema en caña de azúcar sobre el carbono de un Andisol. En la producción de caña de azúcar la quema previa a la cosecha es una práctica común, la cual reduce la biomasa que potencialmente se incorporaría al suelo, por ello, se asume que disminuye el carbono orgánico del suelo. Esta investigación cuantificó en Turrialba, Costa Rica, el carbono orgánico por unidad de suelo en una plantación comercial de caña de azúcar, con y sin la práctica de quema previo a su cosecha. En el 2019 se implementó un diseño irrestricto al azar y se evaluaron tres tratamientos: a) un año de renovación de la plantación y cosecha en verde sin quema (testigo, TO), b) un año de renovación (T1) y c) cuatro años de renovación con quema previo a la cosecha (T4); todos con tres repeticiones. En ellas se recolectaron muestras de suelo hasta 70 cm de profundidad. Se determinó interacción (P<0,0018) entre la profundidad y la quema en el contenido carbono orgánico, los valores disminuyeron marcadamente con la profundidad en T4 comparados a los de T0 y T1. La relación C/N del suelo se incrementó significativamente (P<0,0001) con las veces que se quema previo a la cosecha, ya que los valores fueron mayores en T4 con respecto a los determinados en T0 y T1. El nitrógeno del suelo fue mayor (P<0,0016) en T0 y T1 con respecto a T4. Se determinó correlación (P<0,0001) entre el COS y el N, así como también entre la CE y el carbono, y entre el contenido de arcilla y carbono. Es notorio el efecto detrimental provocado por la quema en el contenido de carbono orgánico del suelo.Palabras clave: Cambio climático, mitigación, gases con efecto invernadero, trópico, cultivos tropicales. Keywords: Climate change, mitigation, greenhouse gases, tropic, tropical crops.

scholarly journals The Manokwari Declaration: Challenges ahead in conserving 70% of Tanah Papua’s forests

2019 ◽  
Vol 3 (1) ◽  
pp. 148 ◽  
Author(s):  
Rodrigo Cámara-Leret ◽  
Andre Schuiteman ◽  
Timothy Utteridge ◽  
Gemma Bramley ◽  
Richard Deverell ◽  
...  
Keyword(s):  
Climate Change ◽  
Costa Rica ◽  
Biodiversity Conservation ◽  
Climate Change Mitigation ◽  
Large Scale ◽  
New Guinea ◽  
Global Impact ◽  
Se Asia ◽  
Impact On Biodiversity ◽  
Change Mitigation

The Manokwari Declaration is an unprecedented pledge by the governors of Indonesia’s two New Guinea provinces to promote conservation and become SE Asia’s new Costa Rica. This is an exciting, yet challenging endeavour that will require working on many fronts that transcend single disciplines. Because Indonesian New Guinea has the largest expanse of intact forests in SE Asia, large-scale conservation pledges like the Manokwari Declaration will have a global impact on biodiversity conservation and climate change mitigation.

scholarly journals Analysis of the Emergent Climate Change Mitigation Technologies

2021 ◽  
Vol 18 (13) ◽  
pp. 6767
Author(s):  
Deborah Panepinto ◽  
Vincenzo A. Riggio ◽  
Mariachiara Zanetti
Keyword(s):  
Climate Change ◽  
Greenhouse Gases ◽  
Climate Change Mitigation ◽  
Management Practices ◽  
New Technologies ◽  
Global Mean Temperature ◽  
Negative Emission ◽  
Industrial Level ◽  
Negative Emission Technologies ◽  
Change Mitigation

A climate change mitigation refers to efforts to reduce or prevent emission of greenhouse gases. Mitigation can mean using new technologies and renewable energies, making older equipment more energy efficient, or changing management practices or consumer behavior. The mitigation technologies are able to reduce or absorb the greenhouse gases (GHG) and, in particular, the CO2 present in the atmosphere. The CO2 is a persistent atmospheric gas. It seems increasingly likely that concentrations of CO2 and other greenhouse gases in the atmosphere will overshoot the 450 ppm CO2 target, widely seen as the upper limit of concentrations consistent with limiting the increase in global mean temperature from pre-industrial levels to around 2 °C. In order to stay well below to the 2 °C temperature thus compared to the pre-industrial level as required to the Paris Agreement it is necessary that in the future we will obtain a low (or better zero) emissions and it is also necessary that we will absorb a quantity of CO2 from the atmosphere, by 2070, equal to 10 Gt/y. In order to obtain this last point, so in order to absorb an amount of CO2 equal to about 10 Gt/y, it is necessary the implementation of the negative emission technologies. The negative emission technologies are technologies able to absorb the CO2 from the atmosphere. The aim of this work is to perform a detailed overview of the main mitigation technologies possibilities currently developed and, in particular, an analysis of an emergent negative emission technology: the microalgae massive cultivation for CO2 biofixation.

scholarly journals RUANG TERBUKA HIJAU DALAM MITIGASI PERUBAHAN IKLIM GREEN OPEN SPACE IN CLIMATE CHANGE MITIGATION

2017 ◽  
Vol 11 (1) ◽  
pp. 71-76
Author(s):  
Yusriani Sapta Dewi
Keyword(s):  
Climate Change ◽  
Global Warming ◽  
Greenhouse Gases ◽  
Solar Irradiance ◽  
Climate Change Mitigation ◽  
Open Space ◽  
Extended Period ◽  
Average Temperature ◽  
Substantial Change ◽  
Change Mitigation

Climate change is any substantial change in Earth’s climate that lasts for an extended period oftime. Global warming refers to climate change that causes an increase in the average temperature of thelower atmosphere. Global warming is the combined result of anthropogenic (human-caused) emissionsof greenhouse gases and changes in solar irradiance, while climate change refers to any change in thestate of the climate that can be identified by changes in the average and/or the variability of its properties(e.g., temperature, precipitation), and that persists for an extended period, typically decades or longer.Green open space is one of solution for climate change mitigation.

scholarly journals Development of bioenergy plantation in Indonesia: yield regulation and above-ground carbon storage in Gliricidia (Gliricidia sepium) plantation

2020 ◽  
Vol 202 ◽  
pp. 08009
Author(s):  
Budi Mulyana ◽  
Djoko Soeprijadi ◽  
Ris Hadi Purwanto
Keyword(s):  
Climate Change ◽  
Forest Management ◽  
Greenhouse Gases ◽  
Carbon Storage ◽  
Climate Change Mitigation ◽  
Gliricidia Sepium ◽  
Biological Cycle ◽  
Mitigation Action ◽  
Understorey Plants ◽  
Change Mitigation

The development of gliricidia plantation (Gliricidia sepium) in Indonesia can be considered as a climate change mitigation action to reduce greenhouse gases emission. This paper investigates the yield regulation and potential above-ground carbon storage of gliricidia at Perhutani Forest Management Unit Semarang. The biomass production of gliricidia at various age (1, 2, 3, 4, 5 years) can be utilized to determine the biological cycle and estimating the potential above-ground carbon storage. The result showed that gliricidia could be harvested after 2-years to produce optimum biomass. Above-ground carbon storage in gliricidia plantation distributed in the tree (94.73%), litter (2.98%), and understorey plants (2.29%). Total above-ground carbon storage in gliricidia plantation at age 1-5 years are 6.285,45 Mg C, 8.052,58 Mg C, 9.161,93 Mg C, 14.238,63 Mg C, and 25.474,79 Mg C, respectively.

scholarly journals An overview of organic agriculture: A potential strategy for climate change mitigation

2014 ◽  
Vol 6 (2) ◽  
pp. 872-879
Author(s):  
G. T. Patle ◽  
K. K. Badyopadhyay ◽  
Mukesh Kumar
Keyword(s):  
Climate Change ◽  
Greenhouse Gases ◽  
Organic Agriculture ◽  
Climate Change Mitigation ◽  
Large Scale ◽  
Farming System ◽  
Chemical Fertilizers ◽  
Conventional Agriculture ◽  
Mitigation And Adaptation ◽  
Change Mitigation

Indian agriculture has changed considerably in the past several decades. Since post green revolution era, Indian farming basically shifted from the conventional farming system to towards the mechanized farming system and relies heavily on agricultural inputs such as chemical fertilizers, pesticides, heavy farm machineries and irrigation, which are dependent on fossil fuels. Large scale use of these inputs also contributed in emission of greenhouse gases which are mainly responsible for global warming and consequently climate change. Agriculture plays a unique role in the climate change mitigation because of its potential to lower greenhouse gases emissions through carbon sequestration. Organic agriculture is being considered as one of the appropriate farming systems that could serve the twin objectives of climate change mitigation and adaptation. Compared to conventional agriculture, organic agriculture is considered to be more energy efficient and effective both in reducing green house gases emission mainly due to the less use of chemical fertilizers and fossil fuel and enhancing the soil organic carbon. Promotion and adaptation of organic farming in developing country like India can serve as mitigation strategy of climate change.

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