Establishing landuse/cover change patterns over the last two decades and associated factors for change in semi arid and sub humid zones of Tanzania

Amos Enock Majule

doi:10.4236/oje.2013.36051

Abstract

This study investigated landuse cover change patterns and established potential environmental and social factors that have contributed to changes in two zones namely sub humid and semi-arid found in southern highland and central parts of Tanzania respectively. The overall objective was to understand change patterns; the process evolves and clearly isolates various factors that have contributed to the changesover the last 20 years. A total of four villages,two in each zone were involved whereby historical land use cover changes were analysed using remote sensing techniques. To do so satellite imageries for1991 and 2011 and those of1986 and 2009 for sub humid and semi-arid zones respectively. Factors for changes were established through focus group discussions (FDGs) with a total of 80 participants (20 per village) and household (HH) interviews subjected to 10% of the total number of HH per village. Both woodlands and bush lands decreased in the expense of mixed farming in both sub humid and semi- arid zones to a maximum of 121% and 146.8% respectively. Wetland farming also increased particular in sub humid zone. In general, both environmental and social factors were found to have contributed to LUCC in various magnitudes in both zones. Such observed change on landuse will continue and it is recommended that there is a need to have in place and implement proper landuse plan also have capacity building programs on climate and land management issues for both livelihood and ecosystem sustainability need to in place.

Highlights

The majority of communities living in rural areas of Sub-Sahara Africa (SSA) depend their livelihood on the utilization of natural resources from forest, woodlands, wetlands and agricultural land for crops and livestock production [1]
Such resources have been dwindling in many places but in some places where sustainable management are in place and not transformed to other emerging new landuse (LU) both non wood and wood products play a significant role in terms of providing both products and other services [2,3]
Sub-Humid Case Study Zone Major landuse/cover types found in the study area is presented in Tables 3 and 4 for Kimilinzowo and Kinegembasi villages respectively

Summary

Introduction

The majority of communities living in rural areas of Sub-Sahara Africa (SSA) depend their livelihood on the utilization of natural resources from forest, woodlands, wetlands and agricultural land for crops and livestock production [1]. Such resources have been dwindling in many places but in some places where sustainable management are in place and not transformed to other emerging new landuse (LU) both non wood and wood products play a significant role in terms of providing both products and other services [2,3]. Apart from forest resources other landuse types such as woodlands, wetlands, crop lands, and bush lands supported different ecosystems which to a large extent maintained both social and natural systems [3]

Objectives

Methods

Results

Conclusion