China’s largest tropical rainforest dynamics plot established in Yunnan

A 20-ha Tropical Rainforest Dynamics Plot, located in Xishuangbanna in southwestern Yunnan Province, was recently established by the CAS Xishuangbanna Tropical Botanical Garden (XTBG) and the Xishuangbanna National Nature Reserve Administration recently. The Plot is the largest of its kind in China.     

Demo Project for Breeding Dragon''s Blood Tree Successful

Propagation of the herbal medicine resource plant Dracaena cambodiana, a national high-tech industrialization project undertaken by the CAS Xishuangbanna Tropical Botanical Garden (XTBG), has recently passed the acceptance check.     

Demo Project for Breeding Dragon’s Blood Tree Successful

Propagation of the herbal medicine resource plant Dracaena cambodiana, a national high-tech industrialization project undertaken by the CAS Xishuangbanna Tropical Botanical Garden (XTBG), has recently passed the acceptance check. Dracaena cambodiana, or t…     

Honey Bee Foragers Reduce Starvation Risk by Carrying More Food

<正>According to risk sensitive foraging theory,animals forage in ways that not only maximize net caloric intake,but also minimize their probability of starvation(i.e.minimum food requirement).Previous studies have shown that honey bee foragers prefer constant rewards over variable rewards.Prof.TAN Ken from the Xishuangbanna Tropical Botanical Garden and his collaborators have recently studied the risk sensitivity of honey bees by exploring the risk mitigation strategy as they     

Studies reveal sources of fog drip in tropical rainforests

The frequent occurrence of radiation fog appears to play an important role in the hydrological cycle of the tropical rainforests in Xishuangbanna.     

Monoculture Rubber Plantations Have Negative Ef ects on Controlling Splash Erosion

<正>In Xishuangbanna,one of China’s most biodiverse regions,landscape has changed dramatically during the past three decades due to the conversion of tropical rainforest to rubber plantations.In steep areas,terraces are often constructed before planting rubber trees,which causes two important changes in the soil:the destabilization of soil in the bench terraces and the increased vulnerability of unvegetated riser faces to erosion.Few studies have documented the nature and intensity of erosion on bench terraces.Prof.LIU Wenjie and his colleagues from the Xishuangbanna Tropical Botanical Garden(XTBG)conducted a study in Menglun County(21°5′39″N,101°15′55″E),Xishuangbanna to evaluate the influence     

Digital Botanical Garden in Shape

A digital botanical garden(DBG) in the primary formhas been constructed by theCAS Xishuangbanna Tropical Bo-tanical Garden in Yunnan.DBG is considered as an impor-tant mark for world-class botanicalgardens, with which the garden isable to deal with informationthrough digital means. The sys-tem of the Xishuangbanna Tropi-cal Botanical Garden providesbrowsers with a vivid, interactiveplatform, carrying such basic con-tents as acreages of the gardenssectors, the number of plantspecies, and …     

Studies reveal sources of fog drip in tropical rainforests

By using Stable isotopes, CAS researchers probe sources of the fog drip in a tropical seasonal rainforest of Xishuangbanna in southwest China.     

How a Hive Regulates the Accumulation of Toxic Honey？

Previous studies have shown that honeybees adjust their foraging behavior in the presence of plant alkaloids in response to the availability of alternative forage.However,little is known about how it performs in a species other than Apis.mellifera.Dr.TAN Ken of the CAS Xishuangbanna Tropical Botanical Garden and colleagues conducted a study to investigate how a honeybee colony regulates the accumulation of toxic honey.They analyzed the behaviors     

Conserve Birds by Increasing Forest Area near Rubber Plantations

<正>Rubber(Hevea brasiliensis)is one of the most rapidly expanding cash crops in tropical Asia especially Xishuangbanna.Conserving tropical forest largely depends on the effective management of human-modified landscapes.It is crucial to identify measures to improve biodiversity outcomes in rubberforest mosaics for tropical fauna.     

关键核心技术的发展规律探析

如何加速发展关键核心技术,需要把握技术发展的自身规律。文章提出关键核心技术演进特征符合梅特卡夫定律,进而通过宏观和微观两个视角分析关键核心技术的规律,并提出若干建议。     

鄂州市莲花山水质研究

为了查明莲花山水质的水文地质，化学成分特征和应用价值，先后对清心泉，灵龟吐液进行６次观察和２次水质分析，初步证实：两口井水质清沏明亮，口感好，富含偏硅酸和钠离子，现已测定的各项指标均达以国家饮用矿泉水标准，是一种饮用天然偏硅酸矿泉水。     

物联网技术的异化和制度规约

物联网是什么？物联网不是互联网、传感网、产品电子代码,也不单纯是一种技术应用。物联网将“互联网”和“物”连接在一起,就意味着把破坏性创新引进到当今的信息和通信技术世界。与互联网不同,物联网是物、网络、语义等视角的综合而形成的集网络、应用服务于一体的技术融合系统。在物联网语境中,物联网技术像人一样形成了人为的自主特征。物联网意味着一种潜在的技术异化的环境：个人隐私以多种方式受到威胁。而现有对隐私的制度规约存在诸多的不完备性。     

地方高校办学特色培育的路径选择

办学特色是指大学在长期办学过程中积淀形成的、特有的、稳定的、区别于其他高校的独特优质风貌,以及在办学过程中形成的体现一所高校办学优势和特性的总和。地方高校要实现较好发展,根本出路在于特色办学,走特色化发展道路。地方高校办学特色培育是一项系统工程,要整体考虑,把握凝练、构建和路径三个环节,要以现有特色凝练提升为前提,整体特色体系构建为核心,特色培育路径选择为关键,真正实施"特色兴校"战略,推动地方高校健康发展。     

纳米生物效应研究进展

纳米生物效应是将纳米技术与生物、化学、物理、毒理学与医学等领域的实验技术结合起来,研究纳米尺度物质与生命过程相互作用及其结果的一个新兴科学领域。本文介绍了纳米生物效应研究的科学意义,国际发展现状和趋势,我国的研究进展,最后对我国如何发展纳米生物环境效应与安全性的研究提出了几点建议。     

成层地基固结性状中不同定义平均固结度研究分析

一维地基固结理论从传统的太沙基一维固结理论到成层地基一维固结理论中。由于实际地基大多由性质不一的成状土组成,成层地基固结度计算一直为人们所关注。固结度有按沉降(压缩量)定义的地基总平均固结度和按作用的平均有效应力(或所消散的平均孔压)定义(简称按平均孔压定义)的地基总平均固结度。但对实际工程对它们的大小比较讨论甚少,对实际的选取应用没有理论上的支持。本文从一般均质地基的固结度定义入手,在相对比较理想的土体条件假设下,系统的比较了它们的大小区别,并在单面排水条件下结论Us>Up是一定成立的,并且根据以有的半理论解编制了相应的计算程序来说明本文的正确性。     

小企业集群自主创新能力不足的路径依赖

有关集群理论的研究文献深入分析了小企业集群在市场竞争中表现出的强大的竞争优势和独特的创新能力,然而遗憾的是,集群经济并没有改变小企业自主创新能力不足的问题,反而进一步降低了小企业自主创新的动机,最终形成小企业集群自主创新能力不足的路径依赖。运用新制度经济学的路径依赖理论分析小企业集群自主创新能力不足的主要成因,并提出解决的思路。     

就业质量评价——高校就业状况评价新方式

一直以来,政府、高校侧重于把＂就业率＂作为评价高校毕业生就业状况的重要指标,用＂就业率＂代替了＂就业质量＂。只有把＂就业质量＂作为评价毕业生就业状况的标尺,才能真正全面地反映毕业生就业的真实状况,从根本上解决就业问题,促进社会、国家、企业及个人的发展。     

中国企业集团管理研究现状之评价

以中国社会科学引文索引(CSSCI2012—2013)来源期刊中管理学类29种期刊为依据,从期刊载文分布、作者情况、文献类型、研究视角和研究内容等层面,通过运用计量统计法,对2008—2012年5年期间企业集团管理研究进展进行分析和评价,对其热门研究内容进行简单述评,并在此基础上对企业集团管理未来研究的趋势进行展望。