基于组合评价模型的分析

摘 要: 本文界定了现代服务业的范围, 采用层次分析的方法建立了现代服务业综合实力的评价指标体系, 并且利用 层次分析法和因子分析法, 确定了各评价指标的权重。据此对我国各省市 2005 年现代服务业的综合实力进行了评价, 并提 出了发展现代服务业的建议。Abstr act: This paper defines the scope of modern service industry and establishes a system of evaluation index for the com- prehensive strength of modern service industry with the method of AHP. Moreover, it has determined the weight of each index in the system by using the methods of AHP and factor analysis. Accordingly, we evaluate the comprehensive strength of modern ser- vice industry in China's various provinces and cities in 2005 and put forward some suggestions for the development of modern service industry

Comparative Study on Comprehensive Strength of Inter-regional Modern Service Industry in China——Based on the Analysis of Combined Evaluation Models

本文界定了现代服务业的范围,采用层次分析的方法建立了现代服务业综合实力的评价指标体系,并且利用层次分析法和因子分析法,确定了各评价指标的权重。据此对我国各省市2005年现代服务业的综合实力进行了评价,并提出了发展现代服务业的建议。This paper defines the scope of modern service industry and establishes a system of evaluation index for the comprehensive strength of modern service industry with the method of AHP.Moreover,it has determined the weight of each index in the system by using the methods of AHP and factor analysis.Accordingly,we evaluate the comprehensive strength of modern service industry in China's various provinces and cities in 2005 and put forward some suggestions for the development of modern service industry

基于多尺度形态学与奇异值分解的滚动轴承故障特征提取

针对多尺度形态差值滤波存在的问题,将多尺度形态差值算子与奇异值差分谱理论相结合,提出了一种新的滚动轴承故障特征提取方法,能有效滤除噪声,并提取出信号中的故障信息。借助特征能量比的概念,在多尺度形态差值滤波中,提出并分析了两种不同的多尺度加权方法,同时对不同最大分析尺度下多尺度形态差值滤波的结果进行了研究。然后利用奇异值差分谱理论对未能有效滤除高斯噪声的形态差值滤波结果进行SVD重构,得到最终的特征提取结果。仿真表明该方法能在高噪声背景下有效提取出脉冲冲击信号,并在实测轴承故障信号特征提取中得到了验证

模拟降水量变化对防风(Saposhnikovia divaricata)幼苗光合特性及矿质营养积累的影响

为研究降水量变化对防风(Saposhnikovia divaricata)幼苗光合特性及矿质营养积累的影响,采用盆栽实验,以防风幼苗为材料,模拟研究了正常降水(CK,施水量为309 mm,参照防风种子采集地1979-2000年6-9月的总降水量)、增加降水30%(+W)和减少降水30%(-W)对防风幼苗光合特性及矿质营养积累的影响。结果表明:与CK和+W处理相比,?W处理防风幼苗的叶片叶绿素和类胡萝卜素含量显著增加,叶片净光合速率、气孔导度和表观叶肉导度(移栽后73 d、102 d和128 d)显著提升;脯氨酸含量(叶片、叶柄和根)、氮含量(叶片、叶柄和根)、磷含量(叶片和根)、钾含量(叶片和叶柄)、钙含量(根)和硫含量(叶片)显著增加。在本实验条件下,减少降水处理能够使防风幼苗叶片光合作用及植株矿质营养含量维持在较高水平,有利于其生长发育,有利于防风幼苗初生代谢产物的积累

STUDY ON PHYSIOLOGICAL ECOLOGY of SONNERATIA APETALA INTRODUCED IN DIFFERENT AREAS IN FUJIAN PROVINCE

采用乙醇提取法、纳氏比色法、钼锑抗显色法及f-C法分别研究了人工引种于福建省漳浦、集美、泉港、连江无瓣海桑(SOnnErATIA APETAlA)成熟叶片的生理指标:叶绿素、氮、磷及总酚含量。结果表明,4个地区叶片叶绿素A含量在(1.44±0.54)—(2.52±0.94)Mg/g之间波动,叶绿素b含量范围在(0.54±0.02)—(0.94±0.11)Mg/g之间,叶绿素A/b随着纬度的升高有增大趋势,表明随纬度升高无瓣海桑对蓝紫光需求比例增大;各地点无瓣海桑氮、磷含量均无显著差异,且n:P比值均小于14,表明均存在n限制;总酚含量随着纬度的升高而逐步升高,可能与无瓣海桑生长条件随纬度的上升而受到外界环境胁迫增大有关。In this paper, we analyzed the concentration of chlorophyll, nitrogen (N), phosphorus (P), and total polyphenol of the mature leaves of Sonneratia apetala which were introduced from Lianjiang, Quangang, Jimei and Zhangpu, using ethanol extract, Nessler's Reagent Spectrophotometry, Mo anti-antimony colorimetry and Folin-Ciocalteu respectively.The concentration of chlorophyll-a ranged from (1.44±0.54) to (2.52±0.94)mg/g, and the concentration of chlorophyll-b was from (0.54±0.02) to (0.94±0.11)mg/g.The concentrations of chlorophyll-a/b increased along with the increasing of the latitude, which demonstrated that the growing demand of blue-purple light by S.apetala.There was no significant difference between nitrogen and phosphorus in 4 sample areas.The N : P ratios were less than 14, which indicates N limited exists in these four sample areas.The concentration of polyphenol increased gradually with the latitude, which could be explained by the increasing environment stress.福建省科技计划重点项目;2009Y0036号;集美大学创新团队资助基金资助;2010A004

近70年来中国自然地理与生存环境基础研究的重要进展与展望

自然环境是人类赖以生存和发展的基础,探索自然环境及其各要素(如地貌、气候、水文、土壤等)的特征、演变过程、地域分异规律以及驱动机制是自然地理学的重点研究内容.中国自然地理要素类型丰富且区域差异较大,为开展自然地理研究提供了难得的机遇.文章主要围绕青藏高原隆升与亚洲内陆干旱化及河流发育、高原冰冻圈环境演化、全新世多时间尺度季风与西风气候变化、湖泊与湿地、流域模型与土壤侵蚀、过去人-地关系演化、生物地理及中国三维地带性规律等几个方面,梳理了近70年来中国自然地理与生存环境研究的重大理论进展与重要贡献.在简要交代国际前沿研究进展的基础上,回顾并梳理了中国自然地理学各分支领域的研究脉络,进一步聚焦重大研究成果或具有较大争议、重大影响的学术争鸣问题,归纳目前研究现状,并进行未来工作展望.最后提出在推进生态文明建设的国家需求下,应发挥中国自然地理研究的优势,厘清自然地理要素变化的过程、规律与机制,持续推进中国自然地理研究为国家战略服务,在全球视野下做出具有中国特色的自然地理学理论贡献

STUDY ON PHYSIOLOGICAL ECOLOGY OF SONNERATIA APETALA INTRODUCED IN DIFFERENT AREAS IN FUJIAN PROVINCE

通讯作者: 黎中宝, 博士, 教授, E-mail: [email protected][中文文摘]采用乙醇提取法、纳氏比色法、钼锑抗显色法及F-C法分别研究了人工引种于福建省漳浦、集美、泉港、连江无瓣海桑(Sonneratia apetala)成熟叶片的生理指标:叶绿素、氮、磷及总酚含量。结果表明,4个地区叶片叶绿素a含量在(1.44±0.54)—(2.52±0.94)mg/g之间波动,叶绿素b含量范围在(0.54±0.02)—(0.94±0.11)mg/g之间,叶绿素a/b随着纬度的升高有增大趋势,表明随纬度升高无瓣海桑对蓝紫光需求比例增大;各地点无瓣海桑氮、磷含量均无显著差异,且N:P比值均小于14,表明均存在N限制;总酚含量随着纬度的升高而逐步升高,可能与无瓣海桑生长条件随纬度的上升而受到外界环境胁迫增大有关。[英文文摘]In this paper, we analyzed the concentration of chlorophyll, nitrogen (N), phosphorus (P), and total polyphenol of the mature leaves of Sonneratia apetala which were introduced from Lianjiang, Quangang, Jimei and Zhangpu, using ethanol extract, Nessler's Reagent Spectrophotometry, Mo anti-antimony colorimetry and Folin-Ciocalteu respectively. The concentration of chlorophyll-a ranged from (1.44±0.54) to (2.52±0.94)mg/g, and the concentration of chlorophyll-b was from (0.54±0.02) to (0.94±0.11)mg/g. The concentrations of chlorophyll-a/b increased along with the increasing of the latitude, which demonstrated that the growing demand of blue-purple light by S. apetala. There was no significant difference between nitrogen and phosphorus in 4 sample areas. The N : P ratios were less than 14, which indicates N limited exists in these four sample areas. The concentration of polyphenol increased gradually with the latitude, which could be explained by the increasing environment stress.福建省科技计划重点项目,2009Y0036号; 集美大学创新团队资助基金资助,2010A004