Groeiplaatsboniteering van djatiboschgronden in verband met grondkaarteering

The relation between soil conditions and vegetation, especially of teak forest was studied. Chemical or physical characteristics of the soil only did not give reliable results. Soils were then studied in the field and a detailed soil map of about 1000 ha of teak forest was made. This soil map shows the occurrence and distribution of 29 soil types, which were briefly described. For some soils some chemical and physical characteristics were given in tables. Most soils are Lateritic and Margalitic soils of varying composition and morphology. Often there are horizons with mottled clays or lateritic concretions. Some soils are derived from andesitic, others from quartz-rich or other parent material. The Margalitic soils are developed in heavy-textured clays. Further to this soil investigation an intensive study was made of the vegetation in the same area of Java. The vegetation was classified into various groups according to the development of the forest trees, the shrubs and the ground flora. It was concluded that the soil map was a very important tool for the prediction of the suitability of the land for growing teak.<p/

The inner lives of early modern travel

This article assesses the role of memory, interiority, and intergenerational relations in the framing of early modern experiences and narratives of travel. It adopts as its focus three generations of the Clerk family of Penicuik, Scotland, whose travels through Europe from the mid-seventeenth century onward proved formative in the creation of varied ‘cosmopolitan’ stances within the family. While such widely studied practices as the ‘Grand Tour’ have drawn on discourses of encounter and cultural engagement within the broader narratives of the ‘long’ eighteenth century, this article reveals a family made deeply anxious by the consequences of travel, both during and after the act. Using diaries, manuscript correspondence, memoirs, and material objects, this article reveals the many ways in which travel was fashioned before, during, and long after it was undertaken. By shifting focus away from the act of travel itself and towards its subsequent afterlives, it explores the ways in which these individuals internalized what they experienced in the course of travel, how they reconciled it with the familiar, quotidian world to which they returned, and how the ‘cosmopolitan’ worldviews they brought home were made to inform the generations that followed

Assessing Site Productivity in Tropical Moist Forests: A Review

Reliable estimates of site productivity are essential for improved predictions of timber yields and for meaningful simulation studies. Few suitable techniques exist for tropical moist forests. Conventional indices such as site index cannot be estimated reliably for stands with many species or indeterminate ages. Emerging techniques require two steps: calibration and validation with permanent sample plots, and correlation with easily measured stand parameters. One promising index for the tropical moist forest is based on the expected diameter increment of individual trees adjusted for tree size and competition. Measures of stand height such as maximum stand height, canopy height and the height-diameter relationship may also prove useful. Proposed measures should satisfy four criteria: they should be reproducible and consistent over long periods of time; indicative of the site, and not unduly influenced by stand condition or management history; correlated with the site's productive potential; and at least as good as any other productivity measures available