摘要:

Almost half the total area of gazetted forest in Uganda consists of savanna woodland. This paper describes some of the trials that are being done in Northern Uganda to replace uneconomicTerm-minalia/Combretumwoodland with timber species, mainly exotics. Early underplanting usingChlorophora excelsaandKhaya grandifoliolahas proved a failure. Underplanting and planting in clear felled areas withMaesopsis eminiihas proved more successful, but after nine years there appears to be a slackening in the rate of growth. Extensive trials of other species, mainly softwoods and eucalypts, were begun in 1957. The most successful of these to date isPinus caribaea., others that look promising areCallitris endlichen, C. preissii, Cupressus arizonica, Eucalyptus camaldulensis(Zanzibar variety),E. citriodora, E. grandis, E. tereticornis, Maesopsis eminii, Pinus khasya, P. leiophylla, P. massoniana, P. patula, P. radiataandTectona grandis.Consequently further and more extensive trials of the best species were started in 1961 and will continue for five years, by which time it is hoped that the answer to planting this type of savanna will have been found.

ISSN:0012-8325    

DOI:10.1080/00128325.1965.11662026

出版商:Taylor & Francis    

年代:1965

数据来源: Taylor

摘要:

Factors involved in the choice of exotic species for artificial afforestation are discussed, followed by a description of the principles and methods to be applied in carrying out trials of such species.

ISSN:0012-8325    

DOI:10.1080/00128325.1965.11662027

出版商:Taylor & Francis    

年代:1965

数据来源: Taylor

摘要:

Factors are discussed which have to be taken into account in converting to monocyclic working in South Mengo forests with a rotation of about 70 years. A plan is described in which this would be achieved over a 40-year conversion felling cycle. Suggestions are made for control of exploitation during the conversion cycle and an account is given of proposed silvicultural treatments for the same period.

ISSN:0012-8325    

DOI:10.1080/00128325.1965.11662028

出版商:Taylor & Francis    

年代:1965

数据来源: Taylor

摘要:

(i)A short description of the main timber producing forests of Uganda and the factors affecting the selection of the system of management.(ii)A summary of the reasons for conversion to a monocyclic felling plan.(iii)Considerations before conversion.(iv)Problems of conversion encountered in Uganda.(v)An account of some of the difficulties of research in THF.(vi)A schedule of treatments suggested for the forests of Uganda being converted to a monocyclic felling plan

ISSN:0012-8325    

DOI:10.1080/00128325.1965.11662029

出版商:Taylor & Francis    

年代:1965

数据来源: Taylor

摘要:

The planning and organization of current silvicultural treatments in South Mengo are discussed briefly in relation to a scheme for conversion to monocyclic working. Field operations are then described in detail, and finally some observations are made on the effectiveness of treatments and possible results.

ISSN:0012-8325    

DOI:10.1080/00128325.1965.11662030

出版商:Taylor & Francis    

年代:1965

数据来源: Taylor

摘要:

The growth ofP. radiatais reviewed. The recommendations for heavy early thinning are based on growth rate, the habit of the species, and the low degree of utilization in Kenya.

ISSN:0012-8325    

DOI:10.1080/00128325.1965.11662031

出版商:Taylor & Francis    

年代:1965

数据来源: Taylor

ISSN:0012-8325    

DOI:10.1080/00128325.1965.11662032

出版商:Taylor & Francis    

年代:1965

数据来源: Taylor