四个生态因子对集约化养猪生产的影响

从环境温度、湿度、光照及空气四个方面详尽阐述了其对集约化养猪生产的作用和影响，提出一些改善猪生产环境的建议，对提高工厂化养猪的生产水平和生态效益具有一定的指导作用。     

江南传统民居的生态建筑材料及其使用考察

文章通过系统考察江南地区传统民居所使用的生态建筑材料,并将其具体使用方式进行了整理.以期抛砖引玉,愿有更多的有识之士能用新观念、新视觉关注和研究中国的传统建筑.     

西部民族地区在大开发中所面临的生态环境问题与思考——以内蒙古自治区鄂托克旗为例

实施西部大开发战略，加快中西部地区发展，是党中央面向新世纪做出的战略决策。位于内蒙古自治区西部的鄂托克旗，是一个典型的蒙古族聚居地区，自然资源丰富、生态环境脆弱，具有我国西部民族地区的典型特征。鄂托克旗所面临的生态环境问题在我国西部民族地区具有较强的代表性，其形成原因及解决方法对于我国西部大开发中的西部民族地区具有普遍意义。     

旅游地生态安全评价研究--以五大连池风景名胜区为例

本文以生态安全理论为基础，阐述了旅游地可持续发展的生态安全理论，探讨了旅游地生态安全评价的理论与方法，建立了旅游地生态安全评价的理论框架结构，根据这一理论体系和工作方法，以五大连池风景名胜区为例，进行了实证研究，并在定量评价的基础上，进行定性分析，得出了若干基本结论。     

内蒙古发展生态农业的宏观调控对策研究

发展生态农业是内蒙古农业可持续发展的必然要求，根据所处的地理位置和气候条件，内蒙古比较适宜发展高效节水农业、沙产业和观光农业。宏观调控对策对实现发展生态农业的战略目标具有决定性意义。     

黄河大柳树枢纽供水区生态绿洲建设研究

规划中的黄河大柳树枢纽供水区，即宁、蒙、陕、甘干旱风沙区，土地荒漠化严重．通过建设800O～13300km^2生态绿洲并将其作为生态移民基地，将减轻非绿洲区人口超载压力，为实施旱耕地退耕还草还林工程和天然草场封育工程创造条件，促进该区的可持续发展．     

滹沱河湿地植物群落的种间关系研究

在样方调查的基础上，采用x^2检验和Pearson相关系数，研究了滹沱河湿地植物群落的种间关联性，对种间相关的测定结果进行了生态分析，结果表明：滹沱河湿地植物群落的42种给管植物可分为四个生态组群，即中旱生植物生态组群、中生植物生态组群、湿生植物生态组群和水生植物生态组群，讨论了x^2检验法和Pearson相关系数法的生态学意义，此外，还分析了种间关联、种间相关与环境因子的关系。     

论生态存在与生态意识

生态存在是生态哲学的一个基本范畴，它有自己独特的涵义、特点和构成要素，生态存在和生态意识的关系问题是生态哲学的基本问题。学术界存在着脱离生态存在而单纯研究生态意识的倾向，必须加以批判。不是人们的生态意识决定人们的生态存在，相反地．是人们的生态存在决定人们的生态意识，生态意识是生态存在的反映。     

Rapid cold hardening process of insects and its ecologically adaptive significance

In contrast to overwintering cold hardening, a rapid cold hardening process has recently been described in insects. This process can rapidly enhance cold tolerance of insects in several hours or even minutes. The characteristics of rapid cold hardening include inducing conditions, cold hardening effects, and fitness costs. Physiological and biochemical mechanisms of rapid cold hardening include rapid changes in the phospholipid composition and the increase in hemolymph osmolalities, polyols production, proline and cold-induced proteins. Moreover, there are different views about the ecologically adaptive significance of rapid cold hardening in insects. This paper reviews research results about rapid cold hardening of insects since 1987, focusing on forms of cold injury, strategies of cold tolerance, and definitions, characteristics, physiological and biochemical mechanisms and adaptive significance of rapid cold hardening.     

Nd isotopic characteristics of Proterozoic metasedimentary rocks and constraints on their provenance in the eastern segment of Central Tianshan Belt, Xinjiang

Sm-Nd isotopic characteristics, εNd(t) values and Nd model ages (TDM) of Proterozoic metasedimentary rocks in the eastern segment of Central Tianshan Belt (ESCTB), Xinjiang, are used to constrain the sedimentary provenance as well as to evaluate their tectonic implications. εNd(t) and TDM values of these samples range from -4.00 to +6.36 and from 1.29 to 2.29 Ga, respectively. These feature values are distinguished from those of Archean Tarim Craton. Their average εNd(t) values of the Weiya, the Kumishi and the south to the Dikar samples are -2.46, +2.06 and +1.37, respectively. Nd model ages of the Weiya samples vary between 1.86 and 2.29 Ga, but those of the Kumishi and the south to the Dikar samples show a significant concentration at 1.6～1.9 Ga and the youngest Nd model age is 1.29 Ga. Those Nd isotopic characteristics suggest that these metasedimentary rocks could be derived from a significant proportion of Paleoproterozoic crustal source and a participation of young arc materials, rather than Archean Tarim Craton. Furthermore, the data also indicate that these two sources were paleogeographically separated. Thus we can deduce that the Kumishi and the south to the Dikar metasedimentary rocks were formed proximal to the arc side of the back-arc basin, but the Weiya metasedimentary rocks were closer to the continental side of the back-arc basin.