Soil samples were collected from the top 7.5 cm of soil in a Strict Natural Reserve (SNR), a surrounding buffer zone, a cassava farm and matured plantations of Gmelina, teak, and pine, so as to determine if plantation establishment and intensive cultivation affect the density and diversity of soil mites. Altogether, 41 taxonomic groups of mites wer...
Published in BioControl
The impact of natural coccinellid larvalpredation on the balsam twig aphid was evaluated bysystematically removing coccinellid egg masses in a6–8 year-old balsam fir (Abies balsamea)Christmas tree plantation in southwesternQuebec. Among coccinellid species hunting on firfoliage during development of Mindarus abietinusfundatrices in May, the indigen...
This paper describes 1999 research intended to shed light on the causes and effects of the devastating 1997-98 forest fires in East Kalimantan. The author visited six communities and interviewed representatives of several other stakeholders (oil palm plantations, industrial timber plantations, timber companies, local government officials) about the...
This article discusses an analysis of the changing role of rattan in people's livelihoods in an area of Kalimantan, Indonesia where it has been cultivated in a traditional rice-swidden system for more than 100 year.
What policy lessons derive from the half-century of banana expansion in the coastal region? For that whole period bananas had a catalytic role in promoting coastal deforestation. At first, this was mostly through direct banana frontier expansion. Later the gradual settlement effects proved key. Modest credit subsidies, the large-scale construction ...
Based on a data set from spacing trials and permanent plots of Eucalyptus globulus Labill., several nonlinear equations for crown ratio prediction (based on exponential, logistic, Richards and Weibull functions) were tested. The total data set was used to fit and select the equations. The equations were evaluated in terms of measures of fit and pre...
Two commercial eucalypt sites were selected in Sao Paulo State, Brazil, to evaluate productivity and soil chemical and physical properties before clearcutting, and the effect of harvesting and soil tillage system on productivity of second rotation. At site 1, the Eucalyptus grandis plantation was 7 years old, on its first rotation, and reached 21 m...
Nadelige effecten op de bedrijfsvoering zijn er nauwelijks, het extra werk is beperkt. Natuur begint zich geleidelijk te ontwikkelen.
Rubber is the most widespread smallholder tree crop in Southeast Asia. Some analysts have blamed the expansion of rubber for greatly contributing to the conversion of mature tropical forest in both Indonesia and Malaysia. The paper critically examines to what extent smallholder rubber production actually led to forest conversion in West Kalimantan ...
In the southern coastal region of Congo near Pointe-Noire, savanna covers large areas on very poor sandy soils. These savannas have been used since 1978 for plantations of fast growing trees, mainly eucalypts, which are grown commercially. A particular feature of the Congolese plantations was their establishment on savanna with poor soil and vegeta...
