|Title :||MEMBEKAL DAN MENGUJI PERALATAN SENSOR & STRUKTUR PENCERAPAN PENYELIDIKAN SISTEM "FREE AIR CARBON DIOXIDE ENRICHMENT (FACE)" DAN ALATAN SOKONGAN BERKAITAN KEMUDAHAN PENYELIDIKAN, DI HUTAN SIMPAN JENGKA, PAHANG|
|Customer:||UNIVERSITI KEBANGSAAN MALAYSIA (UKM)|
|Contract: Value||RM 372,060.00|
This is the project to supply, install and testing the FACE product at HUTAN SIMPAN JENGKA, PAHANG. The overall process has been completed within 2 months. FACE technology was one of the new technology used to investigate the CO2 level in the air. By using this technology, the artificial CO2 was intentionally injected to the gas tanks before released to the environment. The monitoring control system and data logger allow the user to collect data and information about CO2 level, humidity, temperature of surrounding and light intensity.
As we know that atmospheric CO2 concentration [CO2] is an important environmental variable for plant growth, because it is the substrate for photosynthesis. Free Air CO2 Enrichment (FACE) is a method and infrastructure used to experimentally enrich the atmosphere enveloping portions of a terrestrial ecosystem with controlled amounts of carbon dioxide (and in some cases, other gases), without using chambers or walls.
The system is based on the alpine FACE system of the Swiss Federal Institute of Tech- nology (ETH, Z rich) and the University of Basel in Switzer- land. There are eighteen meter high circular plots with a diameter of six meters each, which are maintained at elevated CO2 levels. Being exposed long to the strong sun and logger in-situ application will be assisted by remote monitoring system to enable real time monitoring by GPRS communication. Users can view their site information by Android Phone or Tab.
In addition, the horizontal or vertical pipes are placed in a circle around the experimental plot, which can be between 1m and 30m in diameter, and these emit CO2 enriched air around the plants. The concentration of CO2 is maintained at the desired level through placing sensors in the plot which feedback to a microcomputer, which then adjusts the flow of CO2 from the pipes. The CO2 gas was supplied with a special tubing system used for irrigation in Cameron Highland. The tube has a knot at one-meter intervals for balanced CO2 pressure, which helps in creating a uniform supply of CO2 to the target space in FACE.