SYS-CON MEDIA Authors: Yeshim Deniz, Pat Romanski, Carmen Gonzalez, Gary Arora, Zakia Bouachraoui

News Feed Item

Trees' species and age affect carbon emissions



Climate change forecasts could improve by better understanding the variation in natural carbon emissions from different vegetation types.

Cindy Usun Sigau removed leaves, branches and grass, collectively known as litterfall, from approximately 1 meter around and within the soil collar before the start of the experiment. This was to ensure the researchers only measured carbon released from the soil in the soil collar space - not the carbon released from the other plant matter. (Credit: Cindy Usun Sigau)

To measure how much carbon dioxide was released from the soil in the rubber plantations and oil palm plantations near the Universiti Putra Malaysia campus, the researchers used a portable LI-8100A Automated Soil CO2 Flux System (Li-Cor Inc., Lincoln, NE) with a 20-cm-sized chamber connected to an infrared gas analyser. (Credit: Cindy Usun Sigau)

Selangor, Malaysia, Sept 25, 2018 - (ACN Newswire) - Older rubber tree and oil palm tree plantations in tropical Malaysia release more carbon dioxide from the soil into the atmosphere than younger groves, according to new research in the Pertanika Journal of Tropical Agricultural Science.

Forests and plants store carbon dioxide to produce energy. However, when plants drop their leaves or die, soil microbes go to work to decompose the organic material, and much of the carbon is released back into the atmosphere. This is a natural part of the global carbon cycle. The carbon dioxide released from the soil is called soil CO2 efflux.

The factors that affect this efflux process are not well understood. Learning more can help improve forecasting models that predict how soils respond to continuous rises in manmade carbon emissions, affecting the carbon cycle and climate.

Researchers from Universiti Putra Malaysia investigated how the age and species of trees affect soil CO2 efflux. The team focused their studies on four stands of rubber and oil palm trees that were planted near the university campus 22 six years ago. Using an infrared gas sensor, which precisely measures how much CO2 is in the air right above the soil, they took multiple measurements from each stand, twice a month for three months (April, May and June). They also took hourly measurements between 9 a.m. and 5 p.m. to see how efflux changed throughout the day.

They found that the soil in both the older rubber and oil palm tree plantations released almost twice as much carbon dioxide compared to the soil in each of their younger plantations. The researchers suggest this is likely due to the greater amount of leaf litter and dead organic material being decomposed in the more mature stands. Soil in the rubber tree plantations also released much more carbon dioxide than the oil palm plantations; likely because rubber trees, being deciduous, drop their leaves annually, unlike palm trees.

The team also measured soil temperature and relative humidity, which influence soil CO2 efflux. Relative humidity appeared to have a greater impact than temperature, as the temperature in the tropics is relatively stable throughout the year. However, the team could not draw any strong conclusions about the relationship because it varied widely over space and time. A longer investigation is required to understand what other factors might influence this complex relationship.

The researchers stress that the release of more CO2 from the older stands via decomposing matter does not mean that, in general, older trees should be automatically cut down and replaced with younger ones. The older trees in this study might be removed once they have reached the end of their productive years and the grove replanted, but as part of overall plantation management. Rather, the insight gained here adds to the understanding of how efflux changes from young to old forests, and between species with very different physical characteristics, which can help refine carbon cycle estimates.

For more information about this research, please contact:

Cindy Usun Sigau
Institute of Tropical Forestry and Forest Products
Universiti Putra Malaysia
43400 UPM, Serdang
Selangor Darul Ehsan, Malaysia
Email: [email protected]
Phone: +603 8947 1880 | +6011 1262 2335

About Pertanika Journal of Tropical Agricultural Science (JTAS)
Pertanika Journal of Tropical Agricultural Science (JTAS) is published by Universiti Putra Malaysia in English and is open to authors around the world regardless of nationality. Beginning 2012, it would be published four times a year in February, May, August and November. Other Pertanika series include Pertanika Journal of Science & Technology (JST), and Pertanika Journal of Social Sciences & Humanities (JSSH).

JTAS aims to provide a forum for high quality research related to tropical agricultural research. Areas relevant to the scope of the journal include: agricultural biotechnology, biochemistry, biology, ecology, fisheries, forestry, food sciences, entomology, genetics, microbiology, pathology and management, physiology, plant and animal sciences, production of plants and animals of economic importance, and veterinary medicine. The journal publishes original academic articles dealing with research on issues of worldwide relevance. Website: http://www.pertanika.upm.edu.my/

The paper is available from this link: https://bit.ly/2xFU3Qt

For more information about the journal, contact:

The Chief Executive Editor (UPM Journals)
Pertanika Journal
Office of the Deputy Vice Chancellor (R&I)
Tower II, UPM-MDTC, Putra Science Park
Universiti Putra Malaysia
43400 Serdang, Selangor Darul Ehsan
MALAYSIA
Phone: +603 8947 1622
Email: [email protected]

Images
Cindy Usun Sigau removed leaves, branches and grass, collectively known as litterfall, from approximately 1 meter around and within the soil collar before the start of the experiment. This was to ensure the researchers only measured carbon released from the soil in the soil collar space - not the carbon released from the other plant matter. (Credit: Cindy Usun Sigau) https://bit.ly/2QWZBxR

To measure how much carbon dioxide was released from the soil in the rubber plantations and oil palm plantations near the Universiti Putra Malaysia campus, the researchers used a portable LI-8100A Automated Soil CO2 Flux System (Li-Cor Inc., Lincoln, NE) with a 20-cm-sized chamber connected to an infrared gas analyser. (Credit: Cindy Usun Sigau) https://bit.ly/2N0KC34

Press release distributed by ResearchSEA for Pertanika Journal.

Source: Pertanika Journal

Copyright 2018 ACN Newswire . All rights reserved.

More Stories By ACN Newswire

Copyright 2008 ACN Newswire. All rights reserved. Republication or redistribution of ACN Newswire content is expressly prohibited without the prior written consent of ACN Newswire. ACN Newswire shall not be liable for any errors or delays in the content, or for any actions taken in reliance thereon.

Latest Stories
Artifex Software began 25-years ago with Ghostscript, a page description language (PDL) interpreter software prevalent in printing and related applications requiring rendering and/or conversion from one software language to another. Founded by renowned computer scientist Dr. L. Peter Deutsch, our company has thrived on the basis of our sharp focus on this area of expertise, a zealous commitment to quality and a strong customer service orientation. Over 100 OEM partners representing some of th...
In today's always-on world, customer expectations have changed. Competitive differentiation is delivered through rapid software innovations, the ability to respond to issues quickly and by releasing high-quality code with minimal interruptions. DevOps isn't some far off goal; it's methodologies and practices are a response to this demand. The demand to go faster. The demand for more uptime. The demand to innovate. In this keynote, we will cover the Nutanix Developer Stack. Built from the foundat...
Alan Hase is Vice President of Engineering and Chief Development Officer at Big Switch. Alan has more than 20 years of experience in the networking industry and leading global engineering teams which have delivered industry leading innovation in high end routing, security, fabric and wireless technologies. Alan joined Big Switch from Extreme Networks where he was responsible for product strategy for its secure campus switching, intelligent mobility and campus orchestration products. Prior to Ext...
In an age of borderless networks, security for the cloud and security for the corporate network can no longer be separated. Security teams are now presented with the challenge of monitoring and controlling access to these cloud environments, as they represent yet another frontier for cyber-attacks. Complete visibility has never been more important-or more difficult. Powered by AI, Darktrace's Enterprise Immune System technology is the only solution to offer real-time visibility and insight into ...
Darktrace is the world's leading AI company for cyber security. Created by mathematicians from the University of Cambridge, Darktrace's Enterprise Immune System is the first non-consumer application of machine learning to work at scale, across all network types, from physical, virtualized, and cloud, through to IoT and industrial control systems. Installed as a self-configuring cyber defense platform, Darktrace continuously learns what is ‘normal' for all devices and users, updating its understa...
The level of trust we have with individuals, businesses, and technology affects our lives daily. This is important to remember when discussing new technologies. For example, our level of trust is a critical factor when evaluating a new technology as a potential solution for providing business value. Given the importance of trust, imagine one's reaction upon hearing that blockchain is a "trustless trust" system. On the surface, that does sound like an oxymoron. This paper discusses how "trustless...
Financial enterprises in New York City, London, Singapore, and other world financial capitals are embracing a new generation of smart, automated FinTech that eliminates many cumbersome, slow, and expensive intermediate processes from their businesses. Accordingly, attendees at the upcoming 23rd CloudEXPO, June 24-26, 2019 at Santa Clara Convention Center in Santa Clara, CA will find fresh new content in full new FinTech & Enterprise Blockchain track.
Every organization is facing their own Digital Transformation as they attempt to stay ahead of the competition, or worse, just keep up. Each new opportunity, whether embracing machine learning, IoT, or a cloud migration, seems to bring new development, deployment, and management models. The results are more diverse and federated computing models than any time in our history.
Intel is an American multinational corporation and technology company headquartered in Santa Clara, California, in the Silicon Valley. It is the world's second largest and second highest valued semiconductor chip maker based on revenue after being overtaken by Samsung, and is the inventor of the x86 series of microprocessors, the processors found in most personal computers (PCs). Intel supplies processors for computer system manufacturers such as Apple, Lenovo, HP, and Dell. Intel also manufactu...
Blockchain has shifted from hype to reality across many industries including Financial Services, Supply Chain, Retail, Healthcare and Government. While traditional tech and crypto organizations are generally male dominated, women have embraced blockchain technology from its inception. This is no more evident than at companies where women occupy many of the blockchain roles and leadership positions. Join this panel to hear three women in blockchain share their experience and their POV on the futu...
Concerns about security, downtime and latency, budgets, and general unfamiliarity with cloud technologies continue to create hesitation for many organizations that truly need to be developing a cloud strategy. Hybrid cloud solutions are helping to elevate those concerns by enabling the combination or orchestration of two or more platforms, including on-premise infrastructure, private clouds and/or third-party, public cloud services. This gives organizations more comfort to begin their digital tr...
In very short order, the term "Blockchain" has lost an incredible amount of meaning. With too many jumping on the bandwagon, the market is inundated with projects and use cases that miss the real potential of the technology. We have to begin removing Blockchain from the conversation and ground ourselves in the motivating principles of the technology itself; whether it is consumer privacy, data ownership, trust or even participation in the global economy, the world is faced with serious problems ...
Data center, on-premise, public-cloud, private-cloud, multi-cloud, hybrid-cloud, IoT, AI, edge, SaaS, PaaS... it's an availability, security, performance and integration nightmare even for the best of the best IT experts. Organizations realize the tremendous benefits of everything the digital transformation has to offer. Cloud adoption rates are increasing significantly, and IT budgets are morphing to follow suit. But distributing applications and infrastructure around increases risk, introdu...
Cloud Storage 2.0 has brought many innovations, including the availability of cloud storage services that are less expensive and much faster than previous generations of cloud storage. Cloud Storage 2.0 has also delivered new and faster methods for migrating your premises storage environment to the cloud and the concept of multi-cloud. This session will provide technical details on Cloud Storage 2.0 and the methods used to efficiently migrate from premises-to-cloud storage. This session will als...
For enterprises to maintain business competitiveness in the digital economy, IT modernization is required. And cloud, with its on-demand, elastic and scalable principles has resoundingly been identified as the infrastructure model capable of supporting fast-changing business requirements that enterprises are challenged with, as a result of our increasingly connected world. In fact, Gartner states that by 2022, 28% of enterprise IT spending will have shifted to cloud. But enterprises still must d...