三峡地区的家畜起源与传播

从考古发现的实物材料上,可以认为三峡地区是我国重要的家畜起源地之一。从家畜动物的传播交流上讲,三峡地区既有传播到外区域的家畜,也有从外区域输入的家畜。三峡地区家畜起源与传播的研究,不仅是认识三峡区域文化的重要方面,同时,也为整体研究我国家畜史与经济发展提供着坚实的基础性材料。

Small-Scale Household Biogas Digesters as a Viable Option for Energy Recovery and Global Warming Mitigation--Vietnam Case Study

Biogas from livestock waste is considered as clean and renewable energy in Vietnam. In the last 20 years, in rural and remote areas of Vietnam, there has been a significant increase of small-scale household biogas digesters. Biogas digesters create the benefits of replacing energy and mitigation of climate change caused by greenhouse gas （GHG） emission and deforestation for firewood and charcoal. Livestock waste produces approximately 85 million tonnes every year and continues to increase, meaning there are huge feedstocks for biogas digesters to meet the energy demands in households. However, there are also many constraints on the development programme for small-scale household biogas digester. In Vietnam, the socio-economic situation and the lack of a sustainable energy policy for biogas from livestock sector are hindering the growth of the biogas digester industry. Government subsidies are needed to encourage farmers to participate. This paper will be helpful not only for the sustainable development of household biogas in Vietnam, but also for the developing program of biogas generation in developing countries with similar agricultural economies to Vietnam.

雄安南阳遗址动物资源消费策略初探

本文借助骨骼破碎度、表面性状改变、死亡年龄结构以及骨骼部位发现率等分析,以南阳遗址第二发掘地点出土动物遗存为切入点,首次尝试探究战汉时期燕文化系统内一般城址居民的动物资源消费策略。分析表明,南阳先民在对家猪、家羊、家鸡主要进行肉食开发的同时,对黄牛、家犬与马的利用则呈现多样化。特别是在战国晚至西汉早的社会动荡与转变期,南阳先民适时调整策略,家畜经济由动物性资源完全依靠本地饲养的自给自足型,逐渐向饲养加购置的半"市场化"转型。