Mangrove Above-Ground Biomass and Carbon Stock in the Karimunjawa-Kemujan Islands Estimated from Unmanned Aerial Vehicle-Imagery

Sustainability

Raghab Ray¹  Novi Susetyo Adi²  Terry Louise Kepel²  Restu N. A. Ati²  Mariska A. Kusumaningtyas²  Sigit Bayhu Iryanthony³  Raditya Rizki Ananta⁴  Rudhi Pribadi⁴  Anindya Wirasatriya⁵  Lilik Maslukah⁵  Denny Nugroho Sugianto⁵  Muhammad Helmi⁵  Rempei Suwa⁶  Takashi Nakamura⁷  Kazuo Nadaoka⁷ 

[1] Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwa 277-8564, Japan;Center for Marine Research, Ministry of Marine Affairs and Fisheries, Jalan Pasir Putih, Ancol Timur, Jakarta 14430, Indonesia;Coastal and Ocean Remote Sensing Laboratory, Center for Coastal Rehabilitation and Disaster Mitigation Studies, Universitas Diponegoro, Semarang 50275, Indonesia;Department of Marine Science, Faculty of Fisheries and Marine Science, Universitas Diponegoro, Semarang 50275, Indonesia;Department of Oceanography, Faculty of Fisheries and Marine Science, Universitas Diponegoro, Semarang 50275, Indonesia;Forestry Division, Japan International Research Center for Agricultural Sciences (JIRCAS), 1-1 Ohwashi, Tsukuba 305-8686, Japan;School of Environment and Society, Tokyo Institute of Technology, Tokyo 152-8552, Japan;

关键词: above-ground biomass;    carbon stock;    mangrove;    Karimunjawa Islands;    aerial photo;   

DOI  :  10.3390/su14020706

来源: DOAJ

【 摘 要 】

Blue carbon ecosystems in the Karimunjawa Islands may play a vital role in absorbing and storing the releasing carbon from the Java Sea. The present study investigated mangrove above-ground biomass (AGB) and carbon stock in the Karimunjawa-Kemujan Islands, the largest mangrove area in the Karimunjawa Islands. Taking the aerial photos from an Unmanned Aerial Vehicle combined with Global Navigation Satellite System (GNSS) measurements, we generated Digital Surface Model (DSM) and Digital Terrain Model (DTM) with high accuracy. We calculated mangrove canopy height by subtracting DSM from DTM and then converted it into Lorey’s height. The highest mangrove canopy is located along the coastline facing the sea, ranging from 8 m to 15 m. Stunted mangroves 1 m to 8 m in height are detected mainly in the inner areas. AGBs were calculated using an allometric equation destined for the Southeast and East Asia region. Above-ground carbon biomass is half of AGB. The AGB and carbon biomass of mangroves in the Karimunjawa-Kemujan Islands range from 8 Mg/ha to 328 Mg/ha, and from 4 MgC/ha to 164 MgC/ha, respectively. With a total area of 238.98 ha, the potential above-ground carbon stored in the study area is estimated as 16,555.46 Mg.

【 授权许可】

Unknown