This paper is to find out the source of power of Dong-bei in Chinese history to be based on the merit of nomadism and agriculture in merger, and to survey the agricultural economy which was its foundation.

東北地區(qū)的農(nóng)耕是在農(nóng)業(yè)的原始基礎(chǔ)上吸收了游牧民的畜牧技術(shù)和中原及韓半島的農(nóng)業(yè)文化国产一级真人视频在线。

Digital nomadism will liberate ever more knowledge workers from the cubicle prisons of Dilbert cartoons.

數(shù)字移動生活將更多的腦力勞動者從Dilbert單間牢房似的狹小的辦公間中解放出來十八大禁黄网。

The experience of a lot of current world nations proves, the nomadism of a complete support, country that is engaged in stock raising and nation enter the range of advanced country and nation impossibly.

當今世界許多國家的經(jīng)驗證明欧美26uuu，一個完全依靠游牧操2021wwwcom、從事畜牧業(yè)的國家和民族不可能步入先進國家和民族的行列人人爽爽人日人干人日人。

From unpopulated to populated, from nomadism to fixed habitation, it has now become a new farming zone with cattle and goats all over the hillsides

從無人到有人，從游牧到定居91偷拍南宁老熟女合集，如今這里已成了牛羊滿山坡的新牧區(qū)欧美一级片电影在线观看。

Nomadism model---the interaction between nomads and environments is displayed.

游牧模型——表現(xiàn)了遷移者與環(huán)境的交互關(guān)系。

Nomadism and tribal culture collides with chic style and couture mentality.

游牧主義和部落文化在優(yōu)雅風格和服飾心態(tài)上產(chǎn)生了碰撞麻豆日韩国产精品欧美在线。

Nomadism run s in the family .

這個家族歷來喜歡流浪生活天天做天天爱天天爽天天综合。

From unpopulated to populated, from nomadism to fixed habitation , it has now become a new farming zone with cattle and goats all over the hillsides

從無人到有人，從游牧到定居www.51.vvc，如今這里已成了牛羊滿山坡的新牧區(qū)毛片基地在线视频无码。不適于居住的房子。

During the southwards migration from the Tibetan Plateau, the cradle land of the Kachin, the ancestors of the Kachin shifted from the nomadism, the hunting and the gathering to the swidden agriculture.

景頗族先民從其民族發(fā)源地青藏高原逐漸往南遷徙的過程中午夜福利黄色片，經(jīng)歷了由游牧——采集——狩獵到刀耕火種的文化衍變欧美亚性爱小说视频一二三四。

The level of feed-water and drain system is comparatively high in the history of China.The research on the level of agriculture in Han dynasty indicates that the prosperity of cities in Han dynasty is based on the tender agriculture and the food supplies import is a constant state in the study area. There is no breakthrough in level of agriculture after Han dynasty,and it is an important reason that the city development in the study area is fluctuant in the history of China.From the end of Han dynasty to North and South dynasty,the climate change made the cold and arid weather keeping in the study area,and affected badly the agricultural outputs.The mode of land-use was transformed from the agriculture to the nomadism in this stage.The climate change made the desertization develop mightily and fast,and approach the scale of modern time in the study area in the North and South dynasty.

研究區(qū)漢代農(nóng)業(yè)生產(chǎn)水平的綜合分析表明，一方面最新男人网址，漢代城市的繁榮是建立在比較脆弱的農(nóng)業(yè)基礎(chǔ)上的日韩欧美一本，糧食等物品不斷的外部輸入是一種常態(tài)，漢代以后很長時間糧食生產(chǎn)水平并沒有突破性的提高日韩精品痴汉无码视频网站，這是研究區(qū)城市發(fā)展呈階段性起伏的重要原因91精品丝袜在线播放；另一方面，南北朝時期冷干氣候的持續(xù)国产一区二区三区美女，對脆弱的農(nóng)業(yè)生產(chǎn)具有重大影響黑大粗高潮视频在线观看，農(nóng)業(yè)向牧業(yè)迅速轉(zhuǎn)化，城市的區(qū)域農(nóng)業(yè)支持系統(tǒng)受到嚴重影響午夜狼友啪啪视频，該時期沙漠化也強烈發(fā)展wwwjizzcom。