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Drone Survei Lianas Dan Pemanasan Global

Dampak lianas (tanaman rambat pada pohon) terhadap keseimbangan karbon global, manajemen hutan tropis dan konservasi hutan hujan kini dapat diketahui dari hasil survei dengan drone (light-weight unmanned aerial vehicles/UAVs). Begitu hasil riset Catherine Waite, Ph.D dan koleganya dari School of Geography pada University of Nottingham yang dirilis oleh Journal of Applied Ecology edisi Januari 2019 (University of Nottingham, 9/1/2019).

Hutan tropis berperan besar dalam siklus karbon global karena menyimpan lebih dari 30% karbon terestrial dan menyerap 40% karbon global. Catherine Waite dan koleganya merintis metode baru dengan drone untuk memahami pengaruh lianas terhadap keseimbangan karbon hutan hujan atau hutan tropis (Inside Ecology, 8/1/2019).

“In order to save our rainforests we have to look at why lianas are growing so rapidly and what human factors, if any, are influencing this. The data collected from the drone images are as accurate as ground data, but the drone method is also superior in assessing the infestation of tree crowns in upper canopy layers, as well as faster and less expensive. This will hopefully mean that we can take steps forward in liana and tropical forest ecology research,” ungkap Catherine Waite (University of Nottingham, 9/1/2019).

Jumlah lianas meningkat jumlah dan jenisnya selama beberapa dekade terakhir di hutan-hutan tropis. Lianas mengurangi penyerapan dan penyimpanan karbon pada hutan tropis. Karena lianas menaungi daun pohon, melemahkan tumbuhan penyangga dan bersaing merebut cahaya. Dampaknya ialah pelepasan karbon yang tersimpan pada hutan tropis ke atmosfer.

“Some research indicates that proliferation of lianas is due to global warming, and this looks set to increase in the future. This recent proliferation of lianas, together with the large impact they have on the carbon balance and cycle of tropical forests, means it is more important than ever to study where they are infesting tree canopies more comprehensively and frequently than possible with current methods,” papar Catherine Waite (University of Nottingham, 9/1/2019). 

Oleh Servas Pandur