Welcome to SUAIRE
Sokoine University of Agriculture Institutional Repository (SUA IR). This repository was built and is maintained by the university library (Sokoine National Agricultural Library-SNAL) , in order to collect, preserve and disseminate scholarly output generated by University research community (staff and students) members.
This repository hosts a variety of openly accessible materials including: scholarly articles and books, theses and dissertations, conference proceedings and technical reports. For assistance about depositing your research output in the repository click here. SUA IR Policy click here or any queries contact us at snal@sua.ac.tz.

Communities in SUAIRE
Select a community to browse its collections.
- The Agroforesty Community is a collaborative network dedicated to advancing sustainable land-use practices that integrate trees, crops, and livestock. It serves as a platform for knowledge exchange, research dissemination, and practical innovations in Agroforestry. By fostering connections among researchers, practitioners, policymakers, and local communities, the Agroforestry Community promotes environmental conservation, enhanced agricultural productivity, and resilient livelihoods.
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Recent Submissions
Impact of logging practices on second-generation stand growth of Pinus patula at Sao hill forest plantation in Tanzania
(Tanzania Journal of Forestry and Nature Conservation, 2025) Egidi,J; Shemwetta,D.T.K; Migunga,G.A
Logging is a fundamental component of
forest management, facilitating the
establishment of new stands through the
removal of mature trees. However, logging
operations often induce substantial soil
disturbances, which may adversely affect
the growth of second-generation stands.
This study aimed to assess the impact of
logging on the growth of second-generation
Pinus patula stands at Sao Hill Plantation,
Tanzania (SHFP), specifically focusing on
the impacts of logging on stand growth and
forest soil. Six compartments, three from
each generation, representing stand ages of
1, 3, and 6 years, totaling 180 systematically
sampled plots, each measuring 20 x 20
meters. First- and second-generation stands
were treated as experimental groups. An
independent t-test was used to analyze the
impact of logging on stand growth across
generations. Stand growth parameters
including the number of stems, tree height,
and diameter at breast height (DBH)
decreased by 6.5% to 12.3% in secondgeneration
stands compared to firstgeneration
stands. Soil bulk density in
second-generation stand increased by 25.7%
and 26.2% in the top 10 cm and 20 cm of
soil, respectively, compared to the firstgeneration
stand. The findings emphasize
the critical role of adopting reduced-impact
logging techniques to minimize soil
compaction, thereby supporting the longterm
productivity.
Quantification of intangible forest ecosystem services in eastern arc mountains of Tanzania
(Tanzania Journal of Forestry and Nature Conservation, 2025) Mombo,F; Kitasho,N; Kishimbo,L; Bigirwa,D
Lack of recognition of the economic value
of intangible forest ecosystem services has
contributed to the ongoing degradation of
forest resources in Tanzania. This study
employed a choice experiment method to
estimate the economic values of such
services provided by the Udzungwa Scarp,
Chome, and Uluguru Nature Forest
Reserves in the Eastern Arc Mountains, by
assessing households’ willingness to pay
(WTP). The services valued include
protection of water sources, soil
conservation, biodiversity conservation,
climate regulation, and the provision of
recreational and landscaping amenities. A
simple random sampling technique was
used to select 352 households from five
districts: Same, Mvomero, Morogoro Rural,
Kilolo, and Mufindi. Data were analyzed
using a conditional logit model. The pooled
analysis from the three reserves revealed
that the estimated marginal WTP per month
was TZS 597.40 for biodiversity
conservation, TZS 1,898.49 for water
source protection, and TZS 2,874.08 for soil
conservation. Collectively, these services
were valued at approximately TZS 22.68
million annually by all sampled households.
To minimize the degradation of forest
resources in the Eastern Arc Mountains
region, this study recommends that
policymakers incorporate the estimated
economic values into forest conservation
decisions, ensuring that beneficiaries of
these services contribute to their protection
Attitudes of tutors towards hiv/aids in teachers training colleges in Dar es salaam and coast regions, Tanzania
(Sokoine University of Agriculture, 2009) Kitundu,Agness
Tutors have been given a major role in creating awareness of HI V/AIDS and in ensuring
that young people have the knowledge and skills to protect themselves. Although efforts
have been taken by the government and non- government institutions to address these
issues, the problems are still rapidly increasing in the schools and colleges throughout the
country. This research is on attitudes towards H1V/AIDS in teachers’ training colleges
under the Ministry of Education and Vocational Training (MOEVT). This cross sectional
study used both qualitative and quantitative data collection techniques. The quantitative
data was derived from a sample size of 75 respondents aged between 25 and 55 years
using administered questionnaires. Data was collected using different techniques. The
qualitative data collection techniques used were Focus Group Discussion, in depth
interviews with key informants and, finally, documentary review. Data was analysed using
the Statistical Package for Social Sciences (SPSS). The key findings indicate that tutors
have high knowledge of prevention and awareness of transmission on HIV/AIDS but there
was low indication on condom use. The reason behind the low condom use can be
explained by the socio-cultural influence on the attitudes of the tutors. In addition, other
factors contributing towards low condom use include the influence of the mass media,
inadequate life skills, attitudes towards voluntary counselling and HIV/AIDS testing. On
the basis of these findings, the study recommends to MOEVT and other stakeholders to
develop strategies aiming at promoting awareness of tutors on HIV/AIDS issues. These
strategies include; promotion of tutors’ participation in sexual education programs. Policy
and program approaches should include the provision of adequate access to full and
correct reproductive health information to these tutors.
Constraints in managing community secondary schools in the Morogoro municipality, Tanzania
(Sokoine University of Agriculture, 2011) Khalfan,Hassan
This study aimed to find out constraints in managing community secondary schools in
Tanzania with specific reference to Morogoro Municipality. Specifically the study
intended to; (i) identify constraints that school heads experience in managing
community secondary schools in Tanzania with specific reference to Morogoro
their administration experience in managing community secondary schools and link
these variables to their effectiveness in performing school management responsibilities
and finally, (iii) examine the impact of constraints on management of community
secondary schools in Morogoro Municipality.
The Open system model by Hoy and Miskel (2001) formed the conceptual framework in
this study. The study employed a descriptive survey design to 73 purposively and
randomly selected the school heads and other education coordinators in Morogoro
Municipality. The findings indicated that, the inadequacy of the school heads’ academic
qualifications; interference from political leaders, delayed responses, lack of
participatory decision making, low cooperation with teachers and unfriendly working
environment were the major constraints facing the school heads in managing community
secondary schools. The study concludes that, the identified constraints have resulted into
ineffective management of community schools. The study recommends an urgent need
to review procedures and criteria of appointing the school heads as stipulated by the
1995 Education and Training policy which was reviewed in 2009.The study further
argues that politics should not interfere school heads’ authority.
Mainstreaming gender issues in poverty alleviation interventions: a case study of Missungwi income and food security project in Missungwi district, Mwanza
(Sokoine University of Agriculture, 2004) Kasese,Sekunda
This study presents mainstreaming gender issues in poverty alleviation interventions. The
interventions by Cooperation Assistance Relief Everywhere in Tanzania (CARE (T)). The
specific objectives were to examine if CARE (T) mainstreams gender issues in it’s poverty
alleviation interventions, to identify factors influencing participation of women and men
in CARE (T) supported poverty alleviation activities, to compare the levels of women and
men participation in CARE (T) supported activities for poverty alleviation and to
determine the well-being of project members contributed by Missungwi Income and Food
Security project in Missungwi District. A cross sectional research design was used to
collect data using structured questionnaires administered to both project and non-project
members. A representative sample of 114 respondents was drawn from the sampling
frame. The data collected was analyzed using Statistical Package for Social Science
(SPSS) computer software. Study results reveal that MIFOSE project was the major
contributor to the improvement of members and their families’ well being. Some of the
contributions by MIFOSE project include improved income of the members through
savings mobilization and credit delivery and more awareness and knowledge towards
development issues. Further more, the results show that MIFOSE project involved both
women and men in poverty alleviation initiatives mainly through savings mobilization and
credit delivery, training on improved fanning and on selection, planning and management
of small businesses. Participation of women and men in project activities was significantly
who were involved in poverty alleviation initiatives participated at all levels but the
participation of women was very minimal. Based on the cunent study the following
associated with their awareness in poverty, income and food security. Men and women
overall objective was to assess gcndcr-mainstrcaming issues in poverty alleviation
iii
conclusion and recommendations were made; MIFOSE project mainstreamed gender in
it’s interventions by involving both women and men but the participation of women in
decision making, planning, implementation, monitoring and evaluation of project
activities was very minimal. It is recommended that the MIFOSE project should adopt
designing/planning, implementation, monitoring and evaluation of poverty alleviation
initiatives. The project should ensure full and equal involvement of both men and women
in relevant training. The training should be backed up with confidence and self-awareness
building. MIFOSE project and other rural development agencies should assist rural people
to secure capital or loans to enable them to join the project. One way of doing this can be
by offering credits with substantial reduction of collateral needs, low interest levels and
soft repayment terms.