Comparing Ecological Functions of Eastern and Southern Slopes of a Rangeland Ecosystem in Chaharbagh Region, Golestan Province, Iran

Getting aware of one kind of soil surface attributs is very important. Assessment of important attributes of soil and vegetation can help us to be aware of rangeland potential and help us to determine its situation. The goal of this research is to determine some plant and soil indicators of hilly winter rangelands of Eastern and Southern slopes of Chaharbagh region in Golestan province. By considering plant cover and soil surface attributes, it used the SSCC （soil surface classification） method to assess soil surface attributes. The length and width of ecological patches were measured in the forms of lichen, lichen-Grass, forbs, shrub and bare soil inter patches with litter. Also in this research, it measured the 11 soil surface parameters. These parameters are belonging to three main soil attributes stability, infiltration and nutrient cycles. These three indicators were measured in east and west of Eastern and Southern slopes of this ecosystem and showed significance differences （p 〈 0.05） in shrub, forbs and lichen-grass. In southern and especially in west aspect, these indicators in shrub were more than Eastern. But, in lossy hill of Eastern, lichen-grass patch is more significant. The most important ecological indicators of east landscapes of this region are forbs and lichen-grass.

黄元御重视中气学术思想的理论基础探析

黄元御是中医学史上一代名医,其学术思想丰富,重视中气是其主要学术思想之一。然后来者对黄氏重视中气学术思想的研究仅限于探讨其中气内涵与其运用上,对黄氏重视中气学术思想的理论基础笔者尚未见相关报道。因此,笔者通过研习黄氏著作并结合经典论述,阐明了黄氏重视中气学术思想的理论基础有三:1黄氏秉承了古经典中医学的河图五行模式理念;2人的本土属性;3黄氏在《道德经》中悟出中气是阴阳二气升降之机原。

在全球化语境下寻找中国方式:中国当代艺术的最近二十年

要把握当代中国艺术的最新走向,不仅要从改革开放的四十年入手,还要着眼百年来中国社会和文化的现代转型,更要以中国进入全球化的时间节点为参照做横向的对比研究。本文在分析艺术界最近二十年出现新一轮探求中国本土固有属性和方式这一显著倾向的同时,挖掘其与自然生态的多样性原则这一国际学术界思想和逻辑的契合点,强调当代艺术从长期统摄人们的人与社会的单一文化形态,进步为人与社会、人与自然的自然—社会的复合形态。当代中国艺术应当在自然与社会相结合的更加广阔和更加完整的结构中去探索自身的文化特质。而对自然的崇尚,是中华文明数千年的宝贵遗产,不仅是中华传统艺术更应该是当代中国艺术的根性所在。