Press Releases
 
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.

Selangor, Malaysia, 25 September 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:
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:

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.

# # #


Submitted by ACN Newswire, ACN Newswire on Tuesday, 25 September 2018 at 10:18 PM
Category: Science & Research
 
Related News

OH-Based Sustainability Consulting Firm Launches With Mission To Help Organizations Conserve Energy
Tuesday, 13 Nov 2018

Compressor Discharge Temperature (CDT) Probe - How it works in Aircraft?
Monday, 12 Nov 2018

Global IPL Device Market for Future Trend 2015-2025
Monday, 12 Nov 2018

Cancer Immunotherapy Market: Application, Opportunity and Forecast 2024
Monday, 5 Nov 2018

Global Silicones and Siloxanes Market 2018 Trends, Key Players, Product Scope, Growth Rate Outlook,
Wednesday, 31 Oct 2018

Related Events

Future Armoured Vehicles Survivability 2018
Tuesday, 13 Nov 2018

Global Forum for Innovations in Agriculture - GFIA in Focus Australia
Tuesday, 27 Nov 2018

Argus LPG and Petrochemical Feedstocks in Shanghai - November 2018
Tuesday, 27 Nov 2018

EDEX - Egypt Defence Expo, 3-5 December 2018, Cairo
Monday, 3 Dec 2018

2019 Asia Pacific Energy Assembly and Awards Dinner
Wednesday, 30 Jan 2019

Latest News

SEO Packages: Now Additional Inexpensive
Tuesday, 13 Nov 2018

EPIC RESEARCH : Special-Report Of 13 November 2018
Tuesday, 13 Nov 2018

Nutrology Announces Donald McCoid as Senior VP of Distribution
Tuesday, 13 Nov 2018

Global Lawn Tractors Market Analysis, Size, Growth, Trends and Forecast 2015-2025
Tuesday, 13 Nov 2018

Calgary Movers Pro offers the finest moving and packing solutions in Canada
Tuesday, 13 Nov 2018

 
Want to get your press releases, event listings, and job ads on Scoopasia? Register now for a FREE account or login if you already have one!
Scoopasia v1.0b. Copyright © 2018
Today is Tuesday, 13 November 2018

About Scoopasia | FAQ | Privacy Policy | Contact Us

Press Releases
Event Listings
Job Listings
Arts & Entertainment
Architecture & Construction
Automotive & Travel
Business
Consumer Technology
Economy
Education
Enterprise Technology
Food & Fashion
Government & Policy
Health Care & Medical
Legal/Law
News & Media
Religion
Science & Research
Sports & Fitness
Login / Register
Get Scoopasia through RSS Feeds & Email Notifications!


Journalist's Toolbox
Hello journalist, welcome to Scoopasia--a powerful online resource for media information in Asia. Scoopasia has press releases and media events for every beat and industry. All content on Scoopasia is 100% FREE. You don't even need to login!

  • Scoop Line
    (Instant Information Request)
    The easiest way to ask questions and request information from the PR community.


  • Advanced Search
    Drill down, dig deep, for media information the way you want it.

  • Journalist's Resources
    Resources and tools you can't do without.

  • PR Tools
    Scoopasia Blog Search
    Search the largest handpicked collection of Asia's most prominent and influential blogs.


    Resources
  • PR Bookmarks
  • Web 2.0 Bookmarks
  • Media Bookmarks

    More Coming Soon...

  • Upcoming Events
  • World ADC San Diego
  • 2nd Responsible Business Summit West
  • 3rd Nordic EUS Conference
  • Digital Commodities Summit London - Part 2
  • EventTech 2018

  • Latest Jobs
    Sorry, there are currently no entries posted here.