Suchergebnisse

Traditional farming in South East (SE) England is presented as a highly-evolved form of sustainable farming. The carrying capacity of traditional farming on a 2.75 ha family smallholding in SE England is assessed from production data recorded over a period of 8 years. The key elements of the farming system were mixed farming (livestock, dairy, arable and horticultural), self-sufficiency in terms of inputs and organic principles. Ten types of food were produced with the aim to comprise all the elements of a balanced diet. The holding and farming system are described and an analysis of the food produced is presented, in terms of weight and energy content, for the years 2010 to 2017. An average carrying capacity of 0.64 people ha-1 was demonstrated on the basis of food energy content alone. Carrying capacity increased to 1.09 people ha-1 when production was re-proportioned to align with the UK Government's currently recommended balanced diet. The latter figure is similar to carrying capacity estimates, derived from national statistics, for the UK's total farmland in the middle part of the 20th Century but significantly lower than theoretical predictions of national carrying capacity.

Traditional farming in South East (SE) England is presented as a highly-evolved form of sustain- able farming. The carrying capacity of traditional farming on a 2.75 ha family smallholding in SE England is assessed from production data recorded over a period of 8 years. The key elements of the farming system were mixed farming (livestock, dairy, arable and horticultural), self-sufficiency in terms of inputs and organic principles. Ten types of food were produced with the aim to comprise all the elements of a balanced diet. The holding and farming system are described and an analysis of the food produced is presented, in terms of weight and energy content, for the years 2010 to 2017. An average carrying capacity of 0.64 people ha−1 was demonstrated on the basis of food energy content alone. Carrying capacity increased to 1.09 people ha−1 when production was re-proportioned to align with the UK Government's currently recommended balanced diet. The latter figure is similar to carrying capacity estimates, derived from national statistics, for the UK's total farmland in the middle part of the 20th Century but significantly lower than theoretical predictions of national carrying capacity.

AbstractChildren's understanding of properties of the earth was investigated by interviewing Asian and white British classmates aged 4−8 years (N = 167). Two issues were explored: whether they held mental models of the earth (Vosniadou & Brewer, 1992) or instead had fragmented knowledge (di Sessa, 1988); and the influence of the children's different cultural backgrounds. Children selected from a set of plastic models and answered forced‐choice questions. Using this methodology, there were no significant differences in the overall performance of Asian and white children after language skills were partialled out. Even young children showed an emerging knowledge of some properties of the earth, but the distributions of their combinations of responses provided no evidence that they had mental models. Instead, these distributions closely resembled those that would be expected if children's knowledge in this domain were fragmented. Possible reasons for the differences between these findings and those of previous research are discussed.