![]() ![]() Our results show that traditional slash-and-burn agriculture had a strong effect on nutrient availability but no effect on the total CNP stocks and soil C fractions. ![]() Litter was absent in active gardens, and the highest amount of litter on the soil surface was found in primary forest. By contrast, the concentration of available P, Ca, Mg, K, and NO 3 was highest in active gardens. Also known as swidden cultivation or shifting cultivation, slash-and-burn agriculture is a primitive agricultural system in which sections of forest are. In addition, stocks of C, N, and P in the soil did not differ between succession stages. Certainly, slash-and-burn farming may be associated with poor crop yields and rapid soil. Phytolith and charcoal evidence for prehistoric slash-and-burn agriculture in the Darien rain forest of Panama. No significant differences between individual succession stages were found in total C, N, and P and in C fractions, pH, conductivity, and microbial biomass. Slash-and-burn agriculture (sometimes re- ferred to as shifting, or swidden agriculture) is sometimes described as non-sustainable (Cramb, 1989 Tobing, 1991 ), and is the primary cause of tropical deforestation (World Resources Insti- tute (WRI), 1990). It is an efficient technique for measuring plant structure and monitoring canopy physiology content in agriculture and forestry,' says Associate Prof. Slash-and-burn agriculture refers to a primitive agricultural system of clearing and cultivating sections of forest repeatedly and then allowing them to rege. To evaluate the effect of traditional slash-and-burn agriculture on soil properties (total C, N, P, and C fractions of soil and available P, Ca, Mg, K, NO 3, pH, and microbial community biomass and composition), we studied a chronosequence represented by active gardens, abandoned gardens (5–10 years old), secondary forest in abandoned garden sites (20–40 years old), and primary forest with no evidence of cultivation for at least 60 years. However, there are few detailed studies about this practice. Traditional slash-and-burn agriculture affects large areas of land across the tropical zone. Slash-and-burn agriculture followed by tillage and western style agriculture often lead to loss of soil organic matter and soil degradation. ![]()
0 Comments
Leave a Reply. |