000			03595nas a2200361 a 4500
005			20260817163442.0
008			250624s20259999th u ms t 000 eng d
035			_a.b1246014x
099		9	_aAIT Thesis no.NR-25-06
100	1		_aZahra, Rahma Aulia
245	1	0	_aAssessing spatial and temporal changes of mangrove ecosystem for conservation in Northern Sumatra, Indonesia
260			_aPathum Thani : _bAsian Institute of Technology, _c2025
300			_a122 leaves : _bill.+ _e1 online resource
490	1		_aThesis ; _vno. NR-25-06
500			_aA thesis submitted in patial fulfillment of the requirements for the degree of Master of Science in Natural Resources Management
502			_aThesis (M. Sc.) - Asian Institute of Technology, 2025
520			_aIndonesia has the biggest mangroves in the world, yet studies analyzing mangrove changes and their relation to ecosystem services for conservation have been limited. This study's objectives are to evaluate the spatial and temporal change of mangroves in Medan and Deli Serdang as coastal areas in Indonesia by analyzing changes in land cover and mangrove ecosystem services. This study estimated the cost-benefit and prioritized areas for mangrove conservation. Data used in this study comprises remote sensing, survey data, and information from Key Informant Interviews. Landsat 5, 7, and 8 to analyze land cover changes in 1994, 2004, 2014, and 2024. The supervised classification using Random Forest was conducted to classify and compute the area into 5 classes, namely mangroves, built-up, water bodies, cropland, and aquaculture. The map of mangrove condition, benefit-cost ratio, current conservation, and proximity were overlaid to obtain the priority of conservation in Medan and Deli Serdang within different villages. Medan and Deli Serdang experienced changes in land use from 1994 to 2024. Decreases were observed in agricultural land and water bodies, while built-up areas and mangroves increased. Built-up areas are concentrated in Medan, while mangroves expanded into aquaculture and agricultural use. From 1994 to 2024, Medan and Deli Serdang experienced significant land use changes, with built-up areas expanding and mangroves declining by more than half due to conversion to aquaculture and cropland. This loss reduced mangrove ecosystem services from USD 10,340/year to USD 2,665/year, impacting local communities, such as Percut Village, where fish catches have declined. Despite the higher cost of restoration (USD 5,229/Ha) compared to protection (USD 3,990/Ha), all districts show a benefit-cost ratio above 1, making conservation economically viable. Pantai Labu and Labuhan Deli are key conservation districts in Medan and Deli Serdang.
610		0	_aMangrove ecology _xThailand
650		0	_aForests and forestry _zThailand _xRemote sensing
700	1		_aShrestha, Rajendra P., _eChairperson
700	1		_aTsusaka, Takuji W., _eExamination Committee
700	1		_aHimanshu, Sushil Kumar, _eExamination Committee
710	2		_aDeutscher Akademischer Austausch Dienst (DAAD), Germany, _eScholarship Donor
810	2		_aAsian Institute of Technology. _tThesis ; _vno. NR-25-06
856	4	0	_3Full-Text _uhttp://203.159.5.9/ait-thesis/detail.php?q=B22435
907			_a.b1246014x _bmnarc _ca
902			_a250702
998			_b0 _c250702 _dm _eh _fa _g0
945			_lmnarc
942			_c67
909			_aBarcode : - _bCREATED : 2025-06-24 _cRECORD # : i13551656 _dLPATRON : 0 _eLCHKIN : - _f# RENEWALS : 0 _g# OVERDUE : 0 _hIUSE3 : 0 _iTOT CHKOUT : 0 _jTOT RENEW : 0
999			_c8821 _d8821