检索结果-南通市图书馆

Chinese Geographical Science 2001年第2期11卷 120-128页

作者： LI Xiao-jian (college of environment and planning, henan university, Kaifeng 475001, P.R.China) college of environment and planning Henan University Kaifeng P. R. China

By using interview data from three large state-owned enterprises (SOEs) in agriculture related industries, this paper reveals that SOEs in inland area are much slow in response to globalization. Although they pursued some strategies to adjust themselves, they are far behind the position to utilize the opportunities generated by economic globalization. Most of them are still out of the networks of transnational corporations. The strategies they adopted are quite different from SOEs in the coastal area. They overlook the importance of information infrastructure, well-educated personnel, and collaboration with the competitive leaders in their industries. The lagging situation is related to isolated location, traditional culture, and slow progress in enterprise reform. International comparison shows that the case companies did follow the general patterns that globalization promotes extension of company′s networks of linkages but in a rather slow phase. The decision makers should encourage intra-regional linkages between SOEs, between SOEs and private, foreign owned companies, as well as inter-regional linkages among them. The latter appears particularly important given the enlarging gaps between coastal and inland areas.

关键词： state-owned enterprise enterprise reform regional development globalization

ON THE DIVISION OF NORTH BOUNDARY OF SUBTROPICALZONE ACCORDING TO THE COMPOSITIONS AND PROPERTIES OF SOIL HUMUS

在线全文

学校读者我要写书评

暂无评论

Chinese Geographical Science 2002年第2期12卷 171-175页

作者： MA Jian hua, ZHAO Qing liang, HAN Jin xian(college of environment &planning, henan university, Kaifeng 475001, P.R. China) college of environment & planning Henan University Kaifeng P. R. China

In this paper predecessors′achievements about the division between subtropical zone and warm temperate zone on the south slope of Funiu Mountain are firstly summarized, and the cause why these viewpoints about the division are different also has been presented. Seven soil profiles at different heights above sea level are dug along the south slope of Funiu Mountain. Many compositions and properties of soil humus have been analyzed in laboratory. A comprehensive study has been made about the division according to the compositions and properties of soil humus with mathematical method. During the analysis process eight indexes have been used, such as altitude, organic carbon, humic acid (HA), fulvic acid (FA), the ratio of humic acid and fulvic acid (HA/FA), two extinction coefficients (E4,E6), and their ratio (E4/E6).The result indicates that the boundary is at about 1000 meters above sea level.

关键词： funiu mountain north boundary of subtropical zone soil humus

Soil quality and sustainable land use in urban-rural marginal area: a case study of Kaifeng

在线全文

学校读者我要写书评

暂无评论

Journal of Geographical Sciences 2001年第3期11卷 356-365页

作者： QIN Ming-zhou, ZHAO Jie (college of environment and planning, henan university, Kaifeng 475001, China) college of Enviroment and planning Henan University

By using the basic theories of physical geography, land resources and ecology, this article analyzes the soil quality of the rural-urban marginal area in Kaifeng. Computer techniques, based on soil samples analysis, are used to study soil quality changes in the Kaifeng’s rural-urban marginal area. While focusing on nutrient circle key links of input and output in soil, relying on numerous practical survey data, this article reveals clearly the impact of land use change on soil quality.

关键词： urban-rural marginal area land use change soil quality soil nutriment balance

FOREST LANDSCAPE PATTERN DYNAMICS OF LUONINGCOUNTY IN henan PROVINCE AND ITS DRIVING FORCES

在线全文

学校读者我要写书评

暂无评论

Chinese Geographical Science 2003年第3期13卷 247-253页

作者： DING Sheng-yan, QIAN Le-xiang, CAO Xin-xiang, LI Shuang, LI Hao-min(college of environment & planning, henan university, Kaifeng 475001, P. R. China) college of environment & planning Henan University Kaifeng P. R. China

With the help of ARC/INFOR and ERDAS software, based on the information from forest resources distribution maps and TM images, four indices were chosen to analyze spatial pattern changes of forest landscape of Luoning County, henan Province from 1983 to 1999. The results showed that: 1) The number and total area of patches were rapidly increased with time changes. The fragmentation degree of the landscape was increasing greatly. 2) The area of some forest patch types, especially shrub forest, economic forest, Populus spp. forest, Quercus spp. forest, sparse forest, deserted grassland etc. had been greatly changed. 3) The fragemation degree of each forest patch type became greater from 1983 to 1999. 4) The transition probabilities of deserted forest, economic forest, Pi-nus tabulaeformis forest, Populus spp. forest exceed 85%,Robinia pseuoacacia forest, deserted grassland, 65% and Quercus spp. forest, non-forest, shrub forest had smaller ones, which were 26.5%, 29.1% and 45.3%, respectively. The main transition trends of various patches were non-forest and Quercus spp. forest. During the course of transition, the types that 50% of area was remained were Quercus spp. forest, non-forest and shrub forest. According to above analyses, the main driving forces, such as the management policies, market economy factors and influences of human activities etc. were brought out.

关键词： forest landscape pattern driving forces luoning county

An Analysis of Suburban Agricultural Land Allocation System and Sustainable Development Strategy──Taking Kaifeng Suburban as an example

在线全文

学校读者我要写书评

暂无评论

Journal of Systems Science and Systems Engineering 2001年第4期13卷 409-417页

作者： QIN Ming-zhou1, ZHAO Shu-mao2 1. college of environment and planning, henan university, Kadeng 475001, China 2. planning Council of henan Province, Zhengzhou 450003, China college of environment and planning Henan UniversityKaifeng 475001 China planning Council of henan Province Zhengzhou 450003 China

Based on the system theory, this paper discusses the structure and efficiency of agricuItural land use in Kaifeng Suburban. Such present problems as benefit deviation from resource al1ocation, distinguished unemployment and four kinds of contribution of urban agriculture land use are revealed. Then, in the view of sustainab1e development, some resolution measures to the problems are advanced out. These suggestions include farmland protection, ecological agriculture, sustainable land use and input decrease of synthetic matter.

关键词： suburban agricultural land use resources allocation use efficiency farmland protection ecological agriculture

Assessment of biochemical concentrations of vegetation using remote sensing technology

在线全文

学校读者我要写书评

暂无评论

Journal of Geographical Sciences 2002年第3期12卷 321-330页

作者： DING Shengyan, GU Jidong, QIAN Lexiang(1. college of environment and planning, henan university, Kaifeng 475001, China 2. Department of Ecology & Biodiversity, The university of Hong Kong, Hong Kong, China) college of environment and planning Henan University Kaifeng 475001 Department of Ecology & Biodiversity The University of Hong Kong 香港

The main biochemicals (such as lignin, protein, cellulose, sugar, starch, chlorophyll and water) of vegetation are directly or indirectly involved in major ecological processes, such as the functions of terrestrial ecosystems (i.e., nutrient-cycling processes, primary production, and decomposition). Remote sensing techniques provide a very convenient way of data acquisition capable of covering a large area several times during one season, so it can play a unique and essential role provided that we can relate remote sensing measurements to the biochemical characteristics of the Earth surface in a reliable and operational way. The application of remote sensing techniques for the estimation of canopy biochemicals was reviewed. Three methods of estimating biochemical concentrations of vegetation were included in this paper: index, stepwise multiple linear regression, and stepwise multiple linear regression based on a model of the forest crown. In addition, the vitality and potential applying value are stress

关键词： biochemicals vegetation remote sensing techniques

Study on Soil and Water Conservation Benefit Models of Grassland Ecosystem──A Case Study on Jianou Mountain Grasslan Ecosystem

在线全文

学校读者我要写书评

暂无评论

Journal of Systems Science and Systems Engineering 2001年第4期13卷 392-396页

作者： ZHU Lian-qi, WANG Yu-biao, ZHAO Qing-liang 1. college of environment and planning, henan university, Kaifeng 475001, China 2. Zhoukou Institute of environment Science, Zhoukou 466001, China college of environment and planning Henan UniversityKaifeng 475001 China Zhoukou Institute of environment Science Zhoukou 466001 China

This paper studies the mechanism of grassland ecosystem's soil and water conservation function on the basis of two years experiment and inspection in Jianou mountain grassland ecosystem experiment station, Fujian province. After anaIysis on the data of soil erosion and runoff coefficient, relations between eroded soil, runoff and slope gradient. we establish soil and water conservation benefit models. According to the mode1s, experiment and inspection results, some proposals have been made to decrease the area of soil erosion in Fujian mountainous areas, e. g., optimizing land use structure in mountainous areas, taking suitable measures for local condition, closing hills for grassland development, accelerating restoration and raising quality of mountain grassland ecosystem, strengthening scientific and technological input, breeding the grass species that are suitable to local physical geographic condition.

关键词： soil and water conservation benefit models grassland ecosystem land use structure

山地农村社会经济缓慢发展的实证分析——以河南省上河村为例

在线全文

学校读者我要写书评

暂无评论

山地学报 2003年第3期21卷 331-336页

作者：乔家君河南大学环境与规划学院河南开封 475001

通过实证调查,山地农村社会经济发展呈下滑态势,指出:人力资源外流、兼业弱化、农户投入减少且偏向生活投资、农民负担日渐加重等是山地农村社会经济缓慢发展的主要原因,提高山地农村社会经济发展的主要措施包括:大力发展山地农村的文... 详细信息

通过实证调查,山地农村社会经济发展呈下滑态势,指出:人力资源外流、兼业弱化、农户投入减少且偏向生活投资、农民负担日渐加重等是山地农村社会经济缓慢发展的主要原因,提高山地农村社会经济发展的主要措施包括:大力发展山地农村的文化教育,发挥当地的林业优势,积极有效引导劳动力合理流动,增加农民收入渠道,加强农村市场建设,切实减轻农民负担等。

关键词：山地农村社会经济发展上河村

Characterizing the Mass Elevation Effect across the Tibetan Plateau

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Journal of Mountain Science 2018年第12期15卷 2651-2665页

作者： HAN Fang ZHANG Bai-ping ZHAO Fang WAN Li TAN Jing LIANG Tian School of Civil and Architectural Engineering, Shandong university of Technology Institute of Geographic Sciences and Natural Resources Research, State Key Laboratory of Resources and environmental Information System, Chinese Academy of Sciences college of environment and planning, henan university Chinese Research Academy of environmental Sciences Beijing Aerospace TITAN Technology Co., Ltd School of Civil and Architectural Engineering Shandong University of TechnologyZibo 255000China Institute of Geographic Sciences and Natural Resources Research State Key Laboratory of Resources and Environmental Information SystemChinese Academy of SciencesBeijing 100101China college of environment and planning Henan UniversityKaifeng 455000China Chinese Research Academy of environmental Sciences Beijing 100012China Beijing Aerospace TITAN Technology Co. LtdBelling 100083China

It is over 110 years since the term Mass Elevation Effect(MEE) was proposed by A. D. Quervain in 1904. The quantitative study of MEE has been explored in the Tibetan Plateau in recent years; however, the spatial distribution of MEE and its impact on the ecological pattern of the plateau are seldom known. In this study, we used a new method to estimate MEE in different regions of the plateau, and, then analyzed the distribution pattern of MEE, and the relationships among MEE, climate, and the altitudinal distribution of timberlines and snowlines in the Plateau. The main results are as follows:(1) The spatial distribution of MEE in the Tibetan Plateau roughly takes on an eccentric ellipse in northwestsoutheast trend. The Chang Tang Plateau and the middle part of the Kunlun Mountains are the core area of MEE, where occurs the highest MEE of above 11℃; and MEE tends to decreases from this core area northwestward, northeastward and southward;(2) The distance away from the core zone of the plateau is also a very important factor for MEE magnitude, because MEE is obviously higher in the interior than in the exterior of the plateau even with similar mountain base elevation(MBE).(3) The impacts of MEE on the altitudinal distribution of timberlines and snowlines are similar, i.e., the higher the MEE, the higher timberlines and snowlines. The highest timberline(4600–4800 m) appears in the lakes and basins north of the Himalayas and in the upper and middle reach valleys of the Yarlung Zangbo River, where the estimated MEE is 10.2822℃–10.6904℃. The highest snowline(6000–6200 m) occurs in the southwest of the Chang Tang Plateau, where the estimated MEE is 11.2059°C–11.5488℃.

关键词： Mass Elevation Effect (MEE) Distribution Pattern Timberline Snowline Tibetan Plateau

产业集群影响区域经济发展的机制分析及其对策研究

在线全文

学校读者我要写书评

暂无评论

生态经济 2009年第11期25卷 153-156页

作者：曾小平河南大学环境与规划学院河南开封475004 开封大学河南开封475004

产业集群是市场体系下生产要素的空间集聚,一个区域只有在地理空间、资源禀赋、基础设施、产业特征、技术创新和制度文化等方面满足了相应的条件,才有可能出现成功的产业集群。文章从产业集群的形成条件和动力机制出发,分析和研究了产... 详细信息

产业集群是市场体系下生产要素的空间集聚,一个区域只有在地理空间、资源禀赋、基础设施、产业特征、技术创新和制度文化等方面满足了相应的条件,才有可能出现成功的产业集群。文章从产业集群的形成条件和动力机制出发,分析和研究了产业集群与区域经济发展关系,并从政府宏观管理的层面,提出了政策建议。

关键词：区域经济产业集群因素分析动力机制政策