关于农业起源的debate始于V,先介绍了他的观点然后说他的观点有bug;之后介绍了更为普遍的一种观点是农业起源于人口压力,后面说有missing的一部分内容可以用天气变化来解释;最后一段介绍了天气变化的两个影响。
所以V的观点是对的?
Main Idea: discuss the origin of agriculture
P1: debate of argriculture starts -
VGC argued that agriculture arose as a consequence of abrupt climate change.
Abrupt climate change-progressive desiccation-withdrawal of humans, animals and plants to banks of rivers and oases.
Close contact of h, a and p led to the first attempts at domestication - rapid population growth and establishment of permanent settlements.
Rather simple, cool wet at the end of LGM to hotter, drier weather of H.
Bug: doesn't tally with the changes that have been presented earlier; doesn't include a detailed interpretation of the impact ...
P2: a more common view
Resistance. Instead, consensus formed around agriculture product of "population pressure".
Hunter gatherers more offspring-some palaeolithis populations began to grow-limitation of resources and made the inevitable.
Not clear: what drove the population explosion-为什么突然开始需要人干活了?Part of the reason 是 sedentism and the more frequent use of settlements made children ...
就是说女人不用带着孩子做游牧民族,larger families.
Missing: driving force, climate change
P3: further explain climate change
Between LGM and H: dramatic changes in climatic conditions and shifts in the climate variability.
- scale of wariming in B/A period provided opportunities to exploit the abundance come with warmer temperatures and greater rainfall.
- climate variability declined during, permit the establishment of more settled existence.
Older D: interrupted, provided opportunities for populations to rise.
Younger D: grinding halt.
Return to near-ice-age conditions posed challenge to ... Driven to 海边, they may have found agriculture the only option for survival.