- Land quality changes
following the conversion of the natural vegetation into silvo-pastoral systems
in semi-arid NE Brazil. Barbara Wick, Holm Tiessen and Romulo S.C. Menezes.
Plant and Soil 222; 59-70, 2000 Kluwer Academic Publishers
- Although the study
does not directly concern the rainforest, the knowledge obtained from it may
be extrapolated to apply to rainforest agroforestry. Also contains interesting
details about the effectiveness of bio-indicators.
- Effect of five tree
crops and a cover crop in multi-strata agroforestry at two fertilization
levels on soil fertility and soil solution chemistry in central Amazonia.
Gotz Schrotz, Wenceslau Geraldes Teixeira, Ronsangela Seixas, Luciana Ferreira
da Silava, Michaela Schaller, Jeferson L.V. Macedo and Wolfgang Zech. Plant
and Soil 221: 143-156, 2000
- Compares the effectiveness
of different species of trees at maintaining soil nutrient availibity.
- Short-term patterns
of carbon and nitrogen mineralisation in a fallow field amended with green
manures from agroforestry trees. Nyberg, Gert; Ekblad, Alf; Buresh, Roland;
Hoegberg, Peter. Department of Forest Ecolog, Swedish University of Agricultural
Sciences, Umea, Swed. Biology and Fertility of Soils (2002), 36(1), 18-25.
- Shows the long term
ineffectiveness of fertilizers.
- Soil organic matter,
microbial biomass and enzyme activities in a tropical agroforestry system.
Chander, K.; Goyal, S.; Nandal, D. P.; Kapoor, K. K. Department of Microbiology,
CCS Haryana Agricultural University, Hisar, India. Biology and Fertility
of SOils (1998), 27(2), 168-172.
- Could perhaps be
the smoking gun in proving the effectiveness of agroforestry.