RESEARCH NEEDS 



Extensive studies have been conducted recently on several forest systems 

 outside of Maine and the general conclusions concerning forest functions can 

 be applied to Maine's forests. However, because differences in topography, 

 drainage patterns, climate, soils, and plant species composition influence 

 ecological functions, studies of productivity, biomass, nutrient and mineral 

 cycles, and hydrology need to be conducted in Maine. In addition, the 

 influence of fire and cutting practices on these processes needs to be 

 determined. 



Of more immediate concern is the need for more detailed inventories of forest 

 systems along the Maine coast. Inventories of forest types, age classes, 

 cutting practices being employed, herbicides and pesticides being used, and 

 rate of harvest are needed. To determine changes in the amounts of forest 

 land it would be necessary to repeat these inventories periodically. 



Also of importance is the role of coastal forests in determining water flow to 

 major rivers and estuaries. The degree to which Maine's forests are being 

 affected by air pollution (acid rain and heavy metals) needs to be 

 investigated. 



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