Semi-permanent cultivators have developed a positive attitude towards the cultivation of groundnut and other Leguminosaea, which in a slash and burn system can help replenish nitrogen volatilized during the burning phase (Budelman and Ketelaars 1974).
A mass burn system uses all the refuse, without prior treatment or preparation.
Maize cropping is predominantly shifting in a slash and burn system with weed management and soil fertility key issues to farmers.
Fire influences the distributions of cover and food resources for ungulates in frequently burned systems.
These results suggest that belowground litter inputs may indeed influence N cycling patterns in these frequently burned systems but may not entirely account for the discrepancy between N availability and ANPP-N demand.
New fireplace inserts, essentially wood-burning stoves that fit into a fireplace, and new freestanding stoves have what Ms. Wheeler described as a two-burn system, burning the wood first, then the smoke so that less of it goes up the stovepipe and more heat goes into the room.
The slash-and-burn system does not, except in the more fertile lowlands, permit the growth of dense populations.
There is good evidence, however, that the slash-and-burn system of cultivation was often supplemented by "raised-field" cultivation in the lowlands; these artificially constructed earthen hillocks built in shallow lakes or marshy areas were not unlike the chinampas of the Mexican highlands.
