Aboveground Biomass Distribution in a Multi-Use Savannah Landscape in Southeastern Kenya: Impact of Land Use and Fences

Show full item record



Permalink

http://hdl.handle.net/10138/320502

Citation

Amara , E , Adhikari , H , Heiskanen , J , Siljander , M , Munyao , M , Omondi , P & Pellikka , P 2020 , ' Aboveground Biomass Distribution in a Multi-Use Savannah Landscape in Southeastern Kenya: Impact of Land Use and Fences ' , Land , vol. 9 , no. 10 , 381 . https://doi.org/10.3390/land9100381

Title: Aboveground Biomass Distribution in a Multi-Use Savannah Landscape in Southeastern Kenya: Impact of Land Use and Fences
Author: Amara, Edward; Adhikari, Hari; Heiskanen, Janne; Siljander, Mika; Munyao, Martha; Omondi, Patrick; Pellikka, Petri
Contributor: University of Helsinki, Earth Change Observation Laboratory (ECHOLAB)
University of Helsinki, Earth Change Observation Laboratory (ECHOLAB)
University of Helsinki, Institute for Atmospheric and Earth System Research (INAR)
University of Helsinki, Earth Change Observation Laboratory (ECHOLAB)
University of Helsinki, Department of Geosciences and Geography
University of Helsinki, Department of Geosciences and Geography
Date: 2020-10
Language: eng
Number of pages: 24
Belongs to series: Land
ISSN: 2073-445X
URI: http://hdl.handle.net/10138/320502
Abstract: Savannahs provide valuable ecosystem services and contribute to continental and global carbon budgets. In addition, savannahs exhibit multiple land uses, e.g., wildlife conservation, pastoralism, and crop farming. Despite their importance, the effect of land use on woody aboveground biomass (AGB) in savannahs is understudied. Furthermore, fences used to reduce human-wildlife conflicts may affect AGB patterns. We assessed AGB densities and patterns, and the effect of land use and fences on AGB in a multi-use savannah landscape in southeastern Kenya. AGB was assessed with field survey and airborne laser scanning (ALS) data, and a land cover map was developed using Sentinel-2 satellite images in Google Earth Engine. The highest woody AGB was found in riverine forest in a conservation area and in bushland outside the conservation area. The highest mean AGB density occurred in the non-conservation area with mixed bushland and cropland (8.9 Mg center dot ha(-1)), while the lowest AGB density (2.6 Mg center dot ha(-1)) occurred in overgrazed grassland in the conservation area. The largest differences in AGB distributions were observed in the fenced boundaries between the conservation and other land-use types. Our results provide evidence that conservation and fences can create sharp AGB transitions and lead to reduced AGB stocks, which is a vital role of savannahs as part of carbon sequestration.
Subject: 1172 Environmental sciences
aboveground woody biomass
airborne laser scanning
conservation
multifunctionality
protected areas
savannah
savannah
multifunctionality
protected areas
conservation
airborne laser scanning
aboveground woody biomass
ALLOMETRIC MODELS
PROTECTED AREAS
FOREST CARBON
AFRICAN
MANAGEMENT
VEGETATION
CONSERVATION
COVER
ECOSYSTEM
TREES
Rights:


Files in this item

Total number of downloads: Loading...

Files Size Format View
land_09_00381_v2.pdf 6.001Mb PDF View/Open

This item appears in the following Collection(s)

Show full item record