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Land use/cover change (LUCC) attributed to natural factors and human activities has led to the loss of ecosystem services, making the quantitative valuation of ecosystem services the scientific focal pointfor sustainable development. This study assessed changes in the ecosystem services values (ESVs) due to LUCC during the period 1990–2016 in the Kilombero Valley floodplain, located in southeastern Tanzania. Moderate resolution Landsat images from 1990, 2010 and 2016 were obtained and analyzed using a random forest (RF) algorithm for classification, and ArcGIS Desktop software (version 10.2, Esri, Redlands, CA, USA) for mapping to assess the LUCC. The ESVs were estimated based on the benefit transfer approach using adopted global value coefficients and modified local value coefficients. The results revealed that the aggregated ESVs of the forests, bushlands, wetlands, and water had decreased, consequently leading to a total loss of US$ 811.5 million (26.6%) in ESVs over the past 26 years when calculated with the modified local value coefficients to US$ 3000.7 million (42.3%) when calculated with global value coefficients. Moreover, the loss in the ESV was attributed to the decreased values of water regulation, climate regulation, erosion control, nutrient cyclying, habitat/refugia, and water supply, with the exception of the values of food production and biological control, which gradually increased during the study period. This study provided minimum estimates of the ecosystem service values, which willcontribute to the formulation of policy actions and strategies for sustainable management of the Kilombero Valley floodplain and inform various stakeholders on the tradeoffs involved in the use of land resources.
Nangware Kajia Msofe; Lianxi Sheng; Zhenxin Li; James Lyimo. Impact of Land Use/Cover Change on Ecosystem Service Values in the Kilombero Valley Floodplain, Southeastern Tanzania. Forests 2020, 11, 109 .
AMA StyleNangware Kajia Msofe, Lianxi Sheng, Zhenxin Li, James Lyimo. Impact of Land Use/Cover Change on Ecosystem Service Values in the Kilombero Valley Floodplain, Southeastern Tanzania. Forests. 2020; 11 (1):109.
Chicago/Turabian StyleNangware Kajia Msofe; Lianxi Sheng; Zhenxin Li; James Lyimo. 2020. "Impact of Land Use/Cover Change on Ecosystem Service Values in the Kilombero Valley Floodplain, Southeastern Tanzania." Forests 11, no. 1: 109.
Land use change (LUC) driven by human activities and natural factors has resulted in the global loss of native biodiversity and the alteration of ecological processes and services across different ecosystems. It is thus necessary to analyze the trends and driving factors that influence land use changes. In this study, moderate resolution Landsat images were freely downloaded from the United States Geological Survey (USGS) archives, analyzed using the random forest (RF) algorithm and mapped in ArcGIS 10.2 software to examine the LUC trends from 1990 to 2016 in the Kilombero valley floodplain (KVFP), Tanzania. Participatory rural appraisals (PRA) and household questionnaire surveys were used to assess the potential drivers of LUC. The results show that, from 1990 to 2016, the agricultural land and grassland increased by 11.3% and 13.3%, respectively, while the floodplain wetland area decreased from 4.6% in 1990 to 0.9% in 2016. Based on a questionnaire survey, the intensification of human activities was identified as the proximate driver while population growth, a growing market demand and price incentives for agricultural and forest products coupled with improved infrastructure and biophysical factors such as soil properties, climate variability and terrain characteristics were identified as the underlying drivers of LUC. However, there is interplay among these factors acting simultaneously as well as differently that influence land use changes. Based on these findings, future sustainable land management strategies should include the introduction of the alternative environmentally friendly sources of livelihood, such as beekeeping, the promotion of community participation and education on the importance of sustainable wetland management.
Nangware Msofe; Lianxi Sheng; James Lyimo. Land Use Change Trends and Their Driving Forces in the Kilombero Valley Floodplain, Southeastern Tanzania. Sustainability 2019, 11, 505 .
AMA StyleNangware Msofe, Lianxi Sheng, James Lyimo. Land Use Change Trends and Their Driving Forces in the Kilombero Valley Floodplain, Southeastern Tanzania. Sustainability. 2019; 11 (2):505.
Chicago/Turabian StyleNangware Msofe; Lianxi Sheng; James Lyimo. 2019. "Land Use Change Trends and Their Driving Forces in the Kilombero Valley Floodplain, Southeastern Tanzania." Sustainability 11, no. 2: 505.
Nangware Kajia Msofe. Socio-Ecological Drivers of Land Use Change and Wetland Conversion in Kilombero Valley Floodoplain, Tanzania. American Journal of Environmental and Resource Economics 2019, 4, 1 .
AMA StyleNangware Kajia Msofe. Socio-Ecological Drivers of Land Use Change and Wetland Conversion in Kilombero Valley Floodoplain, Tanzania. American Journal of Environmental and Resource Economics. 2019; 4 (1):1.
Chicago/Turabian StyleNangware Kajia Msofe. 2019. "Socio-Ecological Drivers of Land Use Change and Wetland Conversion in Kilombero Valley Floodoplain, Tanzania." American Journal of Environmental and Resource Economics 4, no. 1: 1.