AGRICULTURAL POTENTIALS Source: Frederic L. Pryor, 1986. The Adoption of Agriculture: Some Theoretical and Empirical Evidence. American Anthropologist 88:894-897. These data are reproduced by permission of the author and the American Anthropological Association from American Anthropologist 88:4, 1986. Not for further reproduction. STDS42.DAT Vars. 921 - 930 The evaluations of data quality were made by the author, who notes that such judgements are highly subjective. 921. Agricultural Potential 1: Sum of Land Slope, Soils, Climate Scales [see below for definitions of components added] . 1 4 = Poorest potential 5 = 5 1 6 = 6 7 = 7 5 8 = 8 1 9 = 9 2 10 = 10 7 11 = 11 8 12 = 12 5 13 = 13 14 14 = 14 10 15 = 15 16 16 = 16 24 17 = 17 25 18 = 18 29 19 = 19 24 20 = 20 7 21 = 21 5 22 = 22 4 23 = Richest potential 922. Land Slope. Food and Agricultural Organization/UNESCO. 1971-78. Soil Maps of the World. UNESCO. [adjusted in some cases by information drawn from the ethnographies] 29 4 = Steeply dissected 15 5 = 36 6 = Rolling to hilly (8% to 30% slope) 30 7 = 76 8 = Level to gently undulating (0 to 8% slope) 923. Data Quality: Inferences 169 0 = Good data 17 1 = Inferential 924. Suitability of Soils for Agriculture. Food and Agricultural Organization/ UNESCO. 1971-78. Soil Maps of the World. UNESCO. [qualitative estimates from soil type discussions] 4 0 = Very Poor 30 2 = Poor 3 3 99 4 = Fair 11 5 30 6 = Good 1 7 8 8 = Very good 925. Data Quality: Inferences 180 0 = Good data 6 1 = Inferential 926. Climate. Papadakis, J. 1966. Climates of the World and their Agricultural Potential. Buenos Aires. [used to determine one of 73 climate types for each society] Papadakis, J. 1970. Agricultural Potentialities of World Climates. Buenos Aires. [used to classify potentiality of climate type for different types of crops. Crops were divided into five classes: winter cereals, mid-season crops (sugar, beets, potatoes), other summer crops (cotton, peanuts, cassava), tree crops (bananas, coconuts), and summer cereals. For each a numerical climate rating was taken; the ratings for the two most favorable crop classes were averaged. Since some of these climate ratings assumed the presence of irrigation the ratings were adjusted as follows: (a) if rain index is 2 or less, subtract 5; (b) if rain index 3 or 4, subtract 3; (c) if rain index is above 4 but both leading crops require irrigation, subtract 3; (d) if rain index above 4 but one leading crop requires irrigation, subtract 1 ] 13 0 Non applicable, too cold for agriculture 2 = Poor 14 3 = Poor-Fair 8 4 = Fair 21 5 = Fair-Good 4 6 = Good 47 7 = Good-Very Good 79 8 = Very good 927. Data Quality: Inferences 182 0 = Good data 4 1 = Inferential 928. Agricultural Potential 2: Lowest of Land Slope, Soils, Climate Scales [see above for definitions of components] 13 0 = Lowest 27 2 = Low 14 3 = Medium-Low 92 4 = Medium 16 5 = Medium-High 17 6 = High 3 7 = High-Very High 4 8 = Very High 929. Average Annual Rainfall. World Meteorological Organization. 1971. Climatological Norms (CLINO) for Climate and Climate Ship Stations for the period 1931-1960. Geneva. [corresponding to the weather station closed to the village or society] 15 . Missing data 4 0 = 0mm < rainfall < 20 mm 2 1 20mm < rainfall < 50 mm 14 2 = 50mm < rainfall < 100 mm 17 3 100mm < rainfall < 200 mm 1 4 = 200mm < rainfall < 400 mm 25 5 400mm < rainfall < 600 mm 6 = 600mm < rainfall < 800 mm 13 7 800mm < rainfall < 1000 mm 95 8 = 1000mm < rainfall 930. Data Quality: Inferences 184 0 = Good data 2 1 = Inferential