Assessment of forest cover and carbon stock changes in sub-tropical pine forest of Azad Jammu & Kashmir (AJK), Pakistan using multi-temporal Landsat satellite data and field inventory

Autoři: Iftikhar Ahmad Khan aff001;  Mobushir Riaz Khan aff002;  Muhammad Hasan Ali Baig aff002;  Zaker Hussain aff001;  Nasir Hameed aff003;  Junaid Aziz Khan aff004
Působiště autorů: Department of Forest, Azad Jammu & Kashmir, Pakistan aff001;  Institute of Geo-information & Earth Observation (IGEO), PMAS-Arid Agriculture University Rawalpindi, Pakistan aff002;  Land Use Planning Section, Planning & Development Department, Azad Jammu & Kashmir, Pakistan aff003;  Institute of Geographic Information System, National University of Science & Technology- Islamabad, Pakistan aff004
Vyšlo v časopise: PLoS ONE 15(1)
Kategorie: Research Article
doi: 10.1371/journal.pone.0226341


This study aimed at estimating temporal (1989–2018) change in forest cover, carbon stock and trend in corresponding CO2 emissions/sequestration of a sub-tropical pine forest (STPF) in AJK, Pakistan. Our field inventory estimation shows an average above ground biomass (AAGB) accumulation of 0.145 Kt/ha with average carbon stock (ACS) value of 0.072 Kt/ha. Landsat TM, ETM+ and OLI images of 1989, 1993, 1999, 2005, 2010, 2015 and 2018 were used to extract vegetation fractions through Linear Spectral Mixture Analysis (LSMA) and forest area was calculated for respective years. Based on the forest area and estimated ACS value, the biomass carbon stock with corresponding CO2 emissions/sequestration was worked out for each time and change in forest carbon stock was determined for different time periods from 1989 to 2018. Our analysis shows net increase of 561 ha in forest cover and 40.39 Kt of ACS along with increase in corresponding CO2 sequestrations of 147.83 Kt over the study period. The results based on combination of remote sensing and field inventory provide valuable information and scientific basis to plan and ensure sustainable forest management (SFM) through reforestation, protection and conservation to enhance and maintain adequate forest cover and reduce CO2 emissions.

Klíčová slova:

Carbon dioxide – Carbon sequestration – Forests – Pines – Temperate forests – Trees – Wood – Composite images


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