For the forest plantations , the steepness of slope and actual erosion can give problems with certain tree species ... of little importance towards the growth possibilities of the forestry LUTS on soils within these soil use classes .

In general , reviews of research needs and priorities always emphasize research on forestry and agroforestry policy . While it is true that we still lack ... The role of trees in income security and welfare . Inter - sectoral forestry ...

Peck ( 39 ) , on the other hand , uses the term agro - forestry system for a quite comparable method . ... in the following terms : combined use of land for farming and forestry , and , again , grazing under a widely spaced tree crop .

-Visit to several cocoa farms with valuable Cordia alliodora trees which were harvested during a period of low cocoa production ... This might be followed by group presentation of results , comparison with past results and comments on ...

MULTI - PURPOSE AND AGROFORESTRY TREE SPECIES RESEARCH DATABASE REQUIREMENTS R. Borel and A. Imbach1 ABSTRACT . Tree research in agroforestry cannot be separated from the other components of the system . Existing agroforestry databases ...

Davey Jones and John Farrar The role of mycorrhizas in phosphorus acquisition Douglas L. Godbold . ... 40 A commentary on methodology for quantifying bioavailable phosphorus in agroforestry systems Mark A. Adams and Pauline F. Grierson ...

( - ) Some traditional agroforestry systems used in South - America have not been mentioned by the informants e.g. the ... years of tree - crop growth is becoming of increasing importance , at least in the two countries mentioned here .

... M. T. Chandler Activities of FAO in the agroforestry field , T. Van Nao The role of IICA - TROPICOS Program in the promotion of agrosilvopastoral systems , J. Dubois Comments on some agricultural and forestry aspects in Honduras and ...

Live fences from Gliricidia sepium : a promising agroforestry technique for the dry Pacific zone of Nicaragua . ... there can also be some substantial long term ( 20-25 year ) economic benefits of using shade trees .

Although we have shown some evidence of species - specific effects of tree plantations on plant understory invasion ... Agroforestry Today 413 ) : 4-6 . ... The role of plantation forests in rehabilitatis degraded tropical ecosystems .