The answer may lie in the fact that the date coincides with the arrival of agriculture in the area.
WSJ: Matt Ridley on Human Culture's Effect on Genes | Mind & Matter
On others, such as in agriculture, an area where women do most of the work, it is men, paradoxically, who are interviewed the most.
His analysis of rainfall patterns in the area suggests that rainfall in agriculture's upper-Mesopotamian heartland would, at this time, have fallen below the level needed to sustain farming reliably.
Major activities in the area are agriculture, forest management, sand and gravel extraction, industry (diverse types), and ecotourism.
Xie said some Chinese investors were interested in U.S. resources, alternative energy and biotechnology, especially in the area of agriculture.
Activities in the transition area of Niubeiliang include agriculture, animal husbandry, forest products.
Women and men from four raions in Moldova have now better access to information and services in the area of employment, social protection, agriculture, cadastre and entrepreneurship.
The one area in which the Egyptians welcomed Israeli interest was agriculture.
Each area of this complex world is a unique system in and of itself, and it's hard enough to truly understand and impact, say, agriculture policy, no less every single policy area in government.
Mr Wood is now contemplating the certainty that his entire flock will be destroyed as the Irish government sets out on what agriculture minister Joe Walsh called an 'aggressive cull' in the Cooley peninsula area.
It is now working on a way for developing countries to share in profits made from organisms and genes that originate in their territories, and this could conceivably tidy up a messy area in which negotiators at the World Trade Organisation and the Food and Agriculture Organisation are also active.
In agriculture, creating a global productivity target would help countries focus on a key but neglected area: the efficiency and output of hundreds of millions of small farmers who live in poverty.
C. area in 1993 to become chief financial officer for the U.S. Department of Agriculture, he and his wife actually settled in the Virginia suburbs--a choice that now generates bad-natured ribbing from opponents.
He added that a vibrant agriculture system would result in a surplus of food, allowing the societal leaders to attract outsiders to the area and exert power.
BBC: Maize was key in early Andean civilisation, study shows
应用推荐