描述:
basin in Gansu Province and Huangshui basin in Qinghai
Province. There have been found more than six hundreds tombs matching
this kind of culture in these years, however, the related or comprehensive
research are not many due to the limited sources. For this reason, I will
indicate its developed sequences and cultural characteristics } which are
based on materials from Xiaohandi tomb, Shanjiatou tomb as well as Lian
huatai tomb. Research methods include phased analysis of the帅ological
pottery and Comparative study on related tombs.
描述:
duction in the area is
restricted by disadvantageous natural resources and environmental conditions,
including low arable land area per capita, frequent drought events and a landscape
dominated by mountains. Forage crop rotation systems could improve soil fertility,
increase crop外eld and provide quality forage supplies for livestock production.
Additionally, their adoption is considered a suitable means to advance sustainable
agriculture development. In this study, the role and status of forage crop rotations in
Tianshui city were studied.