马背上的人1

我家在兴安盟,到锡盟东乌珠穆沁草原上拍摄已经将近10年了.作为一个蒙古族的摄影师,这十年来我亲眼见证了草原传统的消失和文化的改变,没有想到的是,草原退化、沙化的问题越来越严重.我只能用我的镜头进行抢救性地记录,记录下传统,也记录下环境的变化.我感到这是一个统一的整体,无法分割.     

沙质草原植物群落退化与沙化演替

应用TWINSPAN(two-way indicator species analysis)、DCA(detrended correspondence analysis)和CCA(canonical correspondence analysis)技术,对多伦县1984和2001年的28个样地草原植物群落调查数据及相对应的2001年的24个样地土壤调查数据进行分析。结果表明,研究区域的植物群落按照其退化、沙化或恢复演替序列可以分为5个阶段,不同时间的草原植物群落演替序列在空间格局上具有相似性,对比17年的动态变化,也呈现同一演替序列特征;与1984年相比,2001年研究区草原植物群落总体上有明显的退化迹象;草原植物群落退化、沙化或恢复演替与土壤变化具有一定相关性,土壤质地、养分和有机质变化在时间上较植物群落变化明显滞后。     

发展骆驼，保护草原，加固中华民族的生态屏障

20 0 2年 8月 4日在哥伦比亚大学亚利桑那生物圈 2号 (ＢｉｏＳｐｈｅｒｅ＿2 )会议室 ,部分参加美国生态学会年会ＥＳＡ0 2 (美国亚利桑那州图桑市 )的中华海外生态学者 ,对中国北部的沙尘暴 (Ｄｕｓｔｓｔｏｒｍ)问题展开了研讨。会议由中华海外生态学者协会ＳｉｎｏＥｃｏ主     

锡林郭勒典型草原地区蒙古族野生食用植物传统知识研究

选择当地牧民作为信息报告人,运用访谈和证据标本采集鉴定等民族植物学研究方法对内蒙古锡林郭勒典型草原地区蒙古族野生食用植物进行了调查。结果表明,锡林郭勒典型草原地区蒙古族民间野生食用植物共有29种和2变种;食用部位包括全株、地上部位、根、茎、鳞茎、叶、花、果和种子,其中叶是使用频率最高的部位。民间食用方式可分为野生粮食、蔬菜、水果、茶用、调料和零食6种类型。其中,蔬菜用野生植物最多,其次为茶用和调料用植物。当地民间对野生食用植物通常采取生食和熟食两种方法。采用腌制或干燥是当地民间对野生食用植物原料或加工品进行保存的主要方法。羊肉、牛肉、鲜奶和酸奶是当地蒙古族用野生植物烹饪各种食物和调制奶茶时的必用原料,具有地区和民族特色。     

典型草原地区退化草原的改良及提高生产力途径的研究

作者在内蒙古典型草原地区进行了围栏封育、轻耙松土、耕翻撩荒、播种羊草和羊草混播旱生豆科植物,经过5年的试验,显示出这些措施都能不同程度地提高产草量;由于这些改良措施均在七月雨季进行,翻耕后的植物当年即可覆盖土表,所以也不会导致沙化。     

基于RS与GIS的海南西部土地沙化/土地退化动态趋势研究

遥感和地理信息系统技术的发展为研究沙化／土地退化动态趋势变化提供了有效手段,以１９８７年和１９９８年的ＴＭ遥感资料为信息源,综合ＧＩＳ参与监督分类及目视读的方法,以ＧＩＳ为工具提取土地沙化／土地退化动态信息。结果表明海南省西部研究区土地沙化面积在减少,严重沙化区已基本得到整治,但由于对部分地区生态环境的保护不力,使得这些地区继续沙化同;同时,该研究区土地 化区明显的向着逆转的方向发展,但季雨林面积     

A Bodhisattva on Horseback: Buddhist Ethics and Pragmatism in Northern Thailand

In Theravada Buddhism temporal power is viewed as indispensible to the creation of political and economic conditions for spiritiual advancement. But it is a necessary evil. The Buddhist response to the misuse of power is to subordinate it to Buddhist ethics and to deny politics autonomy from religion. Yut, in Buddhist Thailand, there is another tradition which justifies pragmatism and even the use of force. This paper concerns a local leader in Northern Thailand who has attempted to achieve some sort of balance between these to contradictory traditions – a goal that has proved elusive.     

Therapeutic Horseback Riding and Self-Concept in Adolescents With Special Educational Needs

Abstract

The purpose of this study was to determine if a relationship exists between participation in a therapeutic riding program and improvement in self-concept. Using a One Group Pre and Post Test design, the Piers Harris Children's Self-Concept Scale was administered to 29 adolescents identified by the school system as having special educational needs. These students participated in a therapeutic riding program. The mean percentage score of those participants who had no previous riding experience was not statistically significant; however, there was an increase. A t-value of 2.17 (df=22) was obtained on the two-tailed paired t-test conducted on the Behavior Cluster scores. This was statistically significant at the .05 level. Also, there was a positive correlation between younger students and improvement in self-concept scores. Furthermore, those participants who had previous therapeutic riding experience started with a mean score of 80%, as compared with 52% for those with no previous experience.