后化石能源时代油气资源开发的系统思考

后化石能源时代的油气资源开发,不应仅局限于油气资源的勘探开发本身,将其视为包括油气科技进步、油气资源结构、社会经济协调发展等要素所组成的一个复杂系统,进而从系统的角度进行分析和研究。科技进步是油气资源开发的根本保证、油气资源结构更替是油气资源开发的战略选择、实现与社会经济协调发展是油气资源开发的长效机制。

Jade Huang and Chinese Culture Identity： Focus on the Myth of＂Huang of Xiahoushi＂

This paper focus on the myth of ＂Huang of Xiahoushi＂ （~）：~ ~2_t~）, focusing on the distribution of Jade Huang （夏后氏之璜） since the early neolithic and its process of pluralistic integration. The paper explores the story of ethnic group, cultural identification and the significance of Jade Huang in the discourse construction of etiquette civilization behind the mythic narrative based on multi-evidence method and the local meaning of literature in ancient Chinese context.

Natural Conditions of Humanity Appearance and Development in Kazakh Steppe

The first humans （hominids） appeared at about the same geological time in three independent areas： in East Africa, southern Indochina and in the Kazakh steppe. People inhabiting all continents and countries around the world descended from hominids that emerged in these three foci then resided elsewhere. The number of people emerged 2-3 million years ago now about 7.0 billion people. They inhabit the planet and the master space. Kazakh steppe, located in the middle of the Eurasian continent, has always had a positive impact on neighboring countries. According to historical geological data obtained in the south near the ridge Karatau, the first people emerged on the territory of Kazakhstan were found about 2 million years ago. Such a conclusion was made on the basis of residual cultural pebble tools of hominids, founded by scientists. As a result of geological survey work carried out in the 1960＇s there were found some primitive people, starting with the era of＂Arystandy culture＂ and including the Late Paleolithic era in the area of ridges Big and Small Karatau. There had been found the fossil remains of large mammals hunted by hominids around the sites of ancient people. Thanks for these residues the corresponding time of residence of primitive people can be judged from the animal world of the Kazakh steppe.

Environmental background of evolution from the paleolithic to neolithic culture in Nihewan Basin, North China

The relationship between the paleolithic-neolithic cultural transition and environmental evolvement has been a focus of the paleoanthropologists, archeologists, and Quaternary geologists in the world. The analysis result of the paleoanthropic living environment at Yujiagou site of Nihewan Basin in the north of China shows that the microlithic culture at the Yujiagou site occurred during the opening centuries of the last deglaciation and developed markedly in the continuous warm and dry climatic conditions from late period of last deglaciation to early postglacial. Moreover, it also shows that the neolithic culture at the Yujiagou site occurred in the early postglacial and developed rapidly in a warm and humid climatic condition in the Holocene Megathermal. Climate variation is an important factor leading to the paleolithic-neolithic cultural transition.

The emergence, development and regional differences of mixed farming of rice and millet in the upper and middle Huai River Valley, China

Mixed farming of rice and millet is one of the basic agricultural modes in the upper and middle Huai River Valley(HRV). According to the latest data, this agricultural mode appeared during the middle and late Peiligang Culture(7.8–7.0 ka BP) in the upper HRV, and then became a common subsistence economy in the end of the Neolithic(5.0–4.0 ka BP) in both the upper and middle HRV. However, it is still not clear how this mixed farming developed in the upper HRV after its occurrence, nor are the regional differences in the development of mixed farming between the upper and middle HRV during the Neolithic completely understood. In this paper, flotation and starch analyses were conducted on samples from eight archaeological sites in the upper and middle HRV. The results indicate that the mixed farming of rice and millet first appeared in the later phase of the middle Neolithic in the regions of the Peiligang Culture, then developed quite rapidly in the late Neolithic(6.8–5.0 ka BP), finally becoming the main subsistence economy at the end of the Neolithic in the upper HRV. However, there are obvious differences in the emergence and development of agriculture between the middle and upper HRV. Rice farming was the only agricultural system during the middle Neolithic, lasting until the end of the Neolithic, when mixed farming appeared in the middle HRV. Furthermore, although mixed farming appeared in both the upper and middle HRV during the end of the Neolithic, the roles of rice, foxtail millet and broomcorn millet in the subsistence economy were not the same. In general, millet was more widely cultivated than rice in the upper HRV, but rice occupied the same or a slightly more prominent position in the middle HRV at the end of the Neolithic. These results are significant for understanding the process of agricultural development and transformation, as well as human adaptation to climatic and cultural variability duringthe Neolithic.

“石油极限”到来后的痛苦选择

上个世纪50年代,壳牌石油公司的一位地质学家马里昂·金·休伯特提出一种理论,即推动现代工业社会兴起和现代人类物质文明赖以生存的石油或化石能源,其生产遵循着一条"钟型曲线",当产量达到钟顶的某一极限后,将持续下滑.该理论也被称为"休伯特极限"(Hubbert's Peak).半个世纪以来,特别是近十年,全球的石油产量正逐渐地逼近这个极限.