林则徐、魏源对西方图书馆的译介活动及其评价

简要介绍了林则徐和魏源在翻译西方书籍过程中对图书馆的介绍，指明了他们对开启中国图书馆文明的重要贡献，并且用历史的观点去看待他们的局限性。     

湋河的底栖动物现状及水质评价研究

2005-03-2005-05对■河杨凌区段的大型底栖动物进行了调查,并以漆水河为参照,应用Trent 生物指数、Chandler记分系统、颤蚓类与全部底栖动物相比的生物指数、Goodnight修正指数和水生昆虫与寡毛类湿重相比的生物指数,同时结合水理化指标对■河水质进行综合分析。结果表明,■河底栖动物共9属．其中环节动物3属,水生昆虫6属;密度和生物量分别为2 728 ind／m2和11.56 g／m2,优势种属为水丝蚓属。■河水体已被污染为超V类水体,且造成漆水河的严重污染。     

香港土壤研究Ⅴ.稀土元素的地球化学特征

香港地区缺乏对土壤中稀土元素地球化学的系统研究.本研究采集了该地区46个代表性土壤剖面样品,利用电感耦合等离子体原子发射光谱（ICP-AES）分析了15种稀土元素的总量,并根据土壤剖面的发育情况分层表述.研究结果表明：香港土壤的稀土元素的总量低于全国的平均含量,在剖面分布上由表层往底层逐渐增加.地球化学特征方面,土壤中轻重稀土分馏明显,具有明显的轻稀土相对富集现象.Ce的富集现象在火成岩母质发育的土壤中较为突出,而Eu的亏缺现象在花岗岩母质发育的土壤中尤为显著.成土母岩、土壤矿质元素和基本性质以及地形和植被等都会显著影响香港土壤稀土元素的含量和地球化学特征.     

泾洛渭河三流域水保措施减水减沙作用研究

以采用“水保法”计算为主,对泾河、北洛河、渭河三流域水土保持措施减水减沙作用进行了研究,结果是:1970~1996年,三流域水保措施年均减洪1.875亿m3,年均减洪沙0.743亿t;水利水保措施年均减洪11.239亿m3,年均减洪沙0.943亿t;水利水保措施年均减水34.816亿m3,年均减沙1.106亿t。三流域1990~1996年年均减水38.251亿m3,年均减沙1.086亿t。在减水减沙中,水利水保措施居主导地位,降雨变化的影响居次要地位。     

香港茶诗集锦

香港茶诗既继承延续了祖国大陆传统茶诗的优势,古风雅韵,情真意切;又具有香港的地域特色,中西交融,文商并蓄。作者大部分是香港人士,身份多样。香港茶诗具有存史、抒怀、言志、叙事、写景、唱酬等多种特色,内涵丰富。     

Profile of the Marine Aquarium Fish Trade in Hong Kong

A market survey and review of government statistics were carried out to establish imports and exports of marine ornamental fishes into and out of Hong Kong, and to examine the local trade in terms of volume, value and species composition. Official government import figures for marine aquarium fishes were available from 1984 to 1991 and from 1997 and 1998. When compared with net imports, export and re-export volumes over the 15-year period were small, indicating that most imports entered the local market, or were exported unrecorded. The market survey of marine aquarium shops in Hong Kong was carried out between August 1996 and January 1997. From this survey, an annual estimate of 957,563 coral reef fish was calculated for the local trade, valued at HK$57,453,780, with a mean retail price of HK$60 per fish. These figures account for an estimated 2–3% of the global value and volume of marine aquarium fish trade, according to 1992 figures and, compared with government figures, indicate that official declarations of imports are underreported by at least 2–3 fold. A total of 342 marine aquarium fish species, from 49 families, were recorded with about 60% belonging to the families Labridae, Chaetodontidae, Pomacanthidae and Pomacentridae. It was estimated that a large proportion of the trade was in juvenile fishes and almost all fish were less than 10cm in standard length. It was common to see fishes in poor condition, species hard to maintain in captivity, or those listed for conservation concern, on sale. There are no regulations for local traders of live marine fishes other than those relating to either protected species or animal welfare. Licensing of traders in marine fishes could be introduced under existing Hong Kong legislation if fishes were to be re-classified as animals. This is strongly recommended as a step towards regulating and managing the trade in Hong Kong.     

广州夏浦围工业区42种园林植物的元素浓度特征

文章研究了广州夏浦围工业区42种园林植物新叶、老叶、新枝和老枝中9种元素(K、Ca、Mg、S、Mn、Zn、Al、Cu和Pb)的浓度特征.结果表明该地区植物叶组织中K和ca浓度较高,Mg较低,反映土壤对K和Ca的供给充足,对Mg的供应可能不足,与大气沉降物中K和ca浓度较高,Mg浓度较低的特征一致.植物叶片元素浓度分析表...     

香港人工斜坡与生态工法设计之探讨

香港地少人多,市区人口密度之高,为世界之冠,超过5300人/km2。为制造出更多的平地空间,改造斜坡便成为香港市区发展的重要因素之一。早期人工斜坡的设计,多以结构体之安全性和稳定性为考量。随着市民环境保护意识之提高,现今的斜坡设计,除了须满足一般之城市规划要求外,更需考虑环境之美化和生态之效益。本文介绍生态工法设计在香港斜坡工程上的各种应用,以探讨其优劣处、局限性、可行性和综合效益。     

加拿大安格斯牛与贵州威宁黄牛杂交一代的生产性能研究

安格斯牛适应性强，繁殖率高。在安♂×威♀杂交产下的公牛犊中，本次初生重最大的33.50 kg，最小19.80 kg，通常情况下，这与威宁黄牛纯繁所产下的公牛犊初生重10～15 kg 相比，差异极显著（P<0.01）。     

养蚕熏烟消毒剂熏毒威的研究

熏毒威为块状熏烟剂，稳定性好，成品点燃即可发烟，有效成分的释放率达９９％以上。试验证明，蚕室每立方米用药３克，密闭熏烟４小时，对家蚕核型多角体、质型多角体、浓核病毒、细菌及其芽孢、家蚕微粒子孢子等有强烈的杀灭作用。每立方米用药１克，熏烟３０分钟，具有同防僵粉一样的防僵效果。对中肠型脓病、浓核病的蚕座传染也有一定的抑制作用，且对蚕、蛹无不良影响。温湿度对熏毒威的杀菌效果影响不大，是一种很有使用价值的新型烟熏消毒剂。