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中国白酒产区化发展路径探究 被引量:3
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作者 李士燃 徐兴花 《现代商贸工业》 2022年第8期12-13,共2页
白酒产业发展格局重构背景下,白酒产业产区化发展特征逐渐显现,这些特征表现为地理文化共同性、产业发展集聚性、内部效应溢出性。从成因看,消费升级驱动,政策环境驱动,协同创新驱动是其重要驱动因素。在发展路径上应解决白酒产区化表达... 白酒产业发展格局重构背景下,白酒产业产区化发展特征逐渐显现,这些特征表现为地理文化共同性、产业发展集聚性、内部效应溢出性。从成因看,消费升级驱动,政策环境驱动,协同创新驱动是其重要驱动因素。在发展路径上应解决白酒产区化表达,将产区整体作为产品、品牌,将其价值传递给消费者。 展开更多
关键词 白酒产业 产区化 发展路径
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中国葡萄酒产区化时代的到来
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作者 王德惠 《酒世界》 2013年第3期40-44,共5页
提到法国会想到波尔多、勃艮第;提到美国会想到加州、纳帕谷;提到意大利会想到托斯卡纳、皮埃蒙特;提到西班牙会想到里奥哈;提到智利会想到麦坡谷;提到澳大利亚会想到巴罗萨、玛格丽特河等等。不可否认,国外的优秀产区概念对我们... 提到法国会想到波尔多、勃艮第;提到美国会想到加州、纳帕谷;提到意大利会想到托斯卡纳、皮埃蒙特;提到西班牙会想到里奥哈;提到智利会想到麦坡谷;提到澳大利亚会想到巴罗萨、玛格丽特河等等。不可否认,国外的优秀产区概念对我们的影响越来越大。 展开更多
关键词 酒工业 葡萄酒 产区化 品牌 市场
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针对焦化化产区VOCs深度治理分析
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作者 胡小秀 《节能与环保》 2020年第11期86-87,共2页
以某焦化厂为例,该厂在日常运行的过程中采取积极措施,对源自化产区域所产生的有机废气进行有效收集和高效处理措施,从而使其能够稳定达到我国环境保护的相关标准。本文对该焦化厂污染源的详细情况进行了全面的介绍,并且提出了有关深度... 以某焦化厂为例,该厂在日常运行的过程中采取积极措施,对源自化产区域所产生的有机废气进行有效收集和高效处理措施,从而使其能够稳定达到我国环境保护的相关标准。本文对该焦化厂污染源的详细情况进行了全面的介绍,并且提出了有关深度治理的实际方案。 展开更多
关键词 产区 VOCS 深度治理 分析
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焦化厂区废气循环与治理一体化技术分析与应用
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作者 周跃辉 《煤化工》 CAS 2023年第3期28-30,60,共4页
针对京宝化工厂干熄焦尾气SO2严重超标、化产区域VOCs不满足环保达标要求等问题,进行了焦化厂区废气循环与治理一体化技术改造。介绍了废气循环与治理一体化技术及其特点,重点分析了该技术对燃烧系统的优化。改造运行表明:通过将锅炉废... 针对京宝化工厂干熄焦尾气SO2严重超标、化产区域VOCs不满足环保达标要求等问题,进行了焦化厂区废气循环与治理一体化技术改造。介绍了废气循环与治理一体化技术及其特点,重点分析了该技术对燃烧系统的优化。改造运行表明:通过将锅炉废气、干熄焦废气及化产区VOCs多股废气引入焦炉废气循环系统,不仅优化了焦炉纵向加热,节省了回炉煤气量,而且其燃烧后引入脱硫脱硝装置净化处理,实现了焦化厂区废气的零排放。 展开更多
关键词 锅炉废气 干熄焦废气 产区VOCs废气 废气循环与治理 燃烧系统优
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Effects of Climate Changes on Maize Yield in Northeast China 被引量:10
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作者 贾建英 郭建平 《Agricultural Science & Technology》 CAS 2010年第6期169-174,共6页
Based on the meteorological data and production data of maize of 10 stations in Northeast China from 1961 to 2006,the primary climatic factors influencing maize yield in different region were studies by the method of ... Based on the meteorological data and production data of maize of 10 stations in Northeast China from 1961 to 2006,the primary climatic factors influencing maize yield in different region were studies by the method of Baier yields models.The result showed that the yield of maize in Heilongjiang and Jilin Province were mainly affected by temperatures,with air temperature increased,the meteorological yield of maize increased.The meteorological yield of maize in Liaoning Province was mainly affected by precipitation and sunshine duration,and different regions had different effects. 展开更多
关键词 NORTHEAST Climate change Yield of maize
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Optimized Strategy for Layout of Crop Production Areas in Hunan Province
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作者 邓文 杨玉 《Agricultural Science & Technology》 CAS 2014年第11期2049-2052,共4页
The optimized strategy made a comprehensive consideration of resources, technology, market orientation, production scale, industry basis and layout based on the principle of crop security and farmers’ income increasi... The optimized strategy made a comprehensive consideration of resources, technology, market orientation, production scale, industry basis and layout based on the principle of crop security and farmers’ income increasing, and determined the general planning on layout and structure optimization of future crop production ar-eas, with present crop production, market outlook, future industry development, con-cluding crop production characteristics of the 4 crop regions, and proposing function orientation and highlights. 展开更多
关键词 Crop production Regional distribution Optimized strategy Hunan
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Influential Factors of Water Productivity of Maize in Oasis of Arid Areas——A Case Study of Linze County
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作者 胡广录 张济世 樊立娟 《Agricultural Science & Technology》 CAS 2012年第9期1854-1858,共5页
[Objective] The aim was to research influential factors of water productivity of maize in oasis in arid areas. [Method] In middle reach of Heihe River in Linze County of Zhangye City, maize, a major crop in irrigated ... [Objective] The aim was to research influential factors of water productivity of maize in oasis in arid areas. [Method] In middle reach of Heihe River in Linze County of Zhangye City, maize, a major crop in irrigated area in the oasis, was studied and nine influential factors were chosen through grey relation analysis. [Result] According to grey relation analysis, top five factors influencing water produc- tivity of maize during 1995-2009 were as follows: applied quantity of chemical fertil- izers〉labour input〉seeds〉mulch amount〉pesticide amount, which indicated that controllable factors, instead of uncontrollable ones, dominate in influence of water productivity of maize in oasis in arid areas. [Conclusion] With water resource limited, investment of controllable factors in high-efficient agricultural production should be the major strategy to improve water productivity of maize in oasis of arid areas. 展开更多
关键词 MAIZE Water productivity Influential factors Gray relation analysis Irri-gated areas in oasis
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Major Function Oriented Zone: New Method of Spatial Regulation for Reshaping Regional Development Pattern in China 被引量:30
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作者 FAN Jie SUN Wei +1 位作者 ZHOU Kan CHEN Dong 《Chinese Geographical Science》 SCIE CSCD 2012年第2期196-209,共14页
Newest planning methods implemented by Chinese government are promoting a coordinated regional development and shaping an orderly spatial structure by applying the regulation of territorial function. This article anal... Newest planning methods implemented by Chinese government are promoting a coordinated regional development and shaping an orderly spatial structure by applying the regulation of territorial function. This article analyzes the problems of spatial planning and regional strategy caused by the wrongly-set primary goal of economic development; it states that the three-fold objective of competitiveness, sustainability, and welfare fairness shall be the principal for China to implement the spatial regulation in the new era; it discusses about theoretical thoughts and technology framework of conducting the ′Major Function Oriented Zone′ based on their different major functions that each region plays in urbanization and industrialization, ecological constructions, grain productions, and protection of natural and cultural heritages; it introduces the new concept of ′Major Function Oriented Zone′ that include the major functions category, the stereo regional equilibrium mode, the two-level zoning specification, and the territorial development intensity; it offers a zoning scheme that defines development-optimized and development-prioritized zones as regions with massive urbanization and industrialization, development-restricted zones as ecological constructing or grain producing regions, development-prohibited zones as natural and cultural heritage protecting regions; and finally it addresses the main obstacle for implementing ′Major Function Oriented Zone′, which is the institutional arrangement of the supreme goal of high GDP growth rate that is currently being implemented. 展开更多
关键词 Major Function Oriented Zone (MFOZ) spatial regulation regional development China
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Influence of Location of Production, Season and Genotype on Caffeine and Flavan-3-ols in Young Green Tea (Camellia sinensis) Leaves in Kenya 被引量:1
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作者 Bowa O. Kwachl Philip O. Owuor +2 位作者 David M. Kamau John K. Wanyoko Samson M. Kamunya 《Journal of Agricultural Science and Technology(B)》 2013年第8期557-574,共18页
Although tea is grown in agro-ecological regions widely varying in environmental factors affecting yield and quality, planters usually import genetic materials across the different growing regions assuming genotypes w... Although tea is grown in agro-ecological regions widely varying in environmental factors affecting yield and quality, planters usually import genetic materials across the different growing regions assuming genotypes with good quality attributes in one location maintain their status in all regions. However, tea quality has not been replicated in new production regions. Black tea quality is influenced by the green leaf quality precursors including caffeine, total polyphenols and individual flavan-3-ols which are precursors of theaflavins and thearubigins, key plain black tea quality parameters. Factors influencing levels of the precursors compounds have not been quantified for popular Kenyan tea cultivars. The influence of geographical production location and seasons on levels and ratios of the quality precursors for 10 black tea popular clones grown in three locations in Kenya under uniform agronomic inputs were monitored. Caffeine varied significantly (P _〈 0.05) with clones and location but not with season. The flavan-3-ols and their ratios all varied (P 〈 0.05) with clones and site but not with season, with significant interactions (P 〈 0.05) between locations and clones, and locations and seasons. These results explain the observed variations in plain black tea quality due to clones and location of production. Thus, farmers in different locations are unlikely to produce black tea of same quality. It is therefore necessary to evaluate new tea genotypes in intended growing areas to establish cultivars suitable for producing high quality plain black teas in the locations. Seasonal variations in plain black tea in Kenya are unlikely to vary significantly due to flavan-3-ols. 展开更多
关键词 Camellia sinensis flavan-3-ols location of production CLONES seasons.
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Impacts of land use and climate change on regional net primary productivity 被引量:8
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作者 高志强 刘纪远 +4 位作者 曹明奎 LI Kerang TAO Bo 《Journal of Geographical Sciences》 SCIE CSCD 2004年第3期349-358,共10页
Combined with recent historical climate data and two periods of land use datasets from remote sensing data, we test the net primary productivity (NPP) data sets in North Chinamodelled by the satellite data-driven Glob... Combined with recent historical climate data and two periods of land use datasets from remote sensing data, we test the net primary productivity (NPP) data sets in North Chinamodelled by the satellite data-driven Global Production Efficiency Model (GLO-PEM) for detecting thewidespread spatial and temporal characteristics of the impacts of climate and land use change onthe regional NPP. Our results show that over the past 20 years, the mean annual temperature in thestudy region has remarkably increased by more than 0.064 ℃, but over the same period, there hasbeen a 1.49 mm decrease in annual precipitation and decrease in NPP by an annual rate of 6.9 TgC.The NPP changes in the study region were greatly affected by the average temperature andprecipitation by ten-day periods as well as the seasonal temperature and precipitation in the studyregion. The correlation between seasonal NPP and seasonal precipitation and temperature is highlyconsistent with land cover spatially, and the correlation coefficient changes with the changes ofvegetation types. The analysis reveals that the related areas in land use change only take up 5.45%of the whole studied region, so the climate changes dominate the impacts on the NPP in the wholestudy region (90% of the total). However, land use plays an absolute dominative role in areas withland cover changes, accounting for 97% of the total. From 1981 to 2000, the NPP in the whole studyregion remarkably reduced due to obvious precipitation decrease and temperature rise. Between twoperiods of land use (about 10 years), the changes in climate are predicted to promote a decrease inNPP by 78 ( + -0.6) TgC, and integrated impacts of climate changes and land use to promote adecrease in NPP by 87(+-0.8) TgC. 展开更多
关键词 climate change land use change NPP GLO-PEM North China Northeast China
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Formation and Transportation of High-Salinity Water Produced in Polynyas South of the St.Lawrence Island 被引量:3
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作者 FU Hongli ZHAO Jinping SHI Jiuxin JIAO Yutian 《Journal of Ocean University of China》 SCIE CAS 2010年第4期317-326,共10页
The authors studied variations of temperature and salinity in seawater under sea ice using hydrologic data collected from polynyas south of the St.Lawrence Island during March of 2008 and 2009.The results indicate tha... The authors studied variations of temperature and salinity in seawater under sea ice using hydrologic data collected from polynyas south of the St.Lawrence Island during March of 2008 and 2009.The results indicate that the high-salinity water found during the cruises of 2008 and 2009 was due to the formation of polynyas.The salinity observed in 2008 was higher than that in 2009 as a result of higher salt production in 2008.The spatial distributions of high-salinity cores differed between the two cruises.In March 2008, a southeastward flow was formed under the persistent northerly wind in the observation region, which transported the high-salinity water produced by the polynyas to the southeast.The similar flow, however, did not exist in March 2009 because the northerly wind over the study area was interrupted by a southerly wind.Accordingly, the polynyas and the high-salinity water pro-duced by them existed for a short time.As a result, the high-salinity water in 2009 did not spread very far, and stayed within the polynyas.In addition, during the 2009 cruise, two stages of observations in the polynyas showed the core of high-salinity water was shifted to the southwest of the St.Lawrence Island.This result suggested that a southwestward flow might have existed in the area at the onset of the northerly wind, which was consistent with the alongshore and/or offshore flows caused by the northerly wind. 展开更多
关键词 POLYNYA high-salinity water ice production salt production
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Oil shale resources in China and their utilization 被引量:2
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作者 XU Zhi ZHU Jianwei +1 位作者 DONG Qingshui SUN Pingchang 《Global Geology》 2016年第1期48-54,共7页
The unconventional oil and gas resources presented in oil shales have meant these potential sources of hydrocarbons, which has become a research focus. China contains abundant oil shale resources, ranking fourth in th... The unconventional oil and gas resources presented in oil shales have meant these potential sources of hydrocarbons, which has become a research focus. China contains abundant oil shale resources, ranking fourth in the world, with ca. 7 254.48 x 108 t within 24 provinces, including 48 basins and 81 oil shale deposits. A- bout 48% of the total oil shale resources are concentrated in the eastern resource region, with a further 22% in the central resource region. 65 % of the total quantity of oil shale resources is present at depths of 0-500 m, with 17% of the total resources being defined as high-quality oil shales yielding more than 10% oil by weight. Chinese oil shale resources are generally hosted by Mesozoic sediments that account for 78% of the total re- sources. In terms of the geographical distribution of these resources, some 45% are located in plain regions, and different oil shale basins have various characteristics. The oil shale resources in China represent a highly prospective future source of hydrocarbons. These resources having potential use not only in power generation and oil refining but also in agriculture, metal and chemical productions, and environmental protection. 展开更多
关键词 China oil shale RESOURCES DISTRIBUTION UTILIZATION
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Small Land Promotion Through Their Culture, Language and Individuality: The Importance of Culture Heritage for the Community Development
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作者 Ilona Biemacka-Ligieza 《Journal of Modern Accounting and Auditing》 2011年第9期1004-1013,共10页
Promotion is becoming one of the most commonly and intentionally used by local government element of marketing mix. It can be either internal (addressed to the inhabitants of the unit) or external (aimed at people ... Promotion is becoming one of the most commonly and intentionally used by local government element of marketing mix. It can be either internal (addressed to the inhabitants of the unit) or external (aimed at people who are not residents of the unit). The subject of the presented studies will be culture promotion of the region. One of the areas of promotion, little appreciated in Poland so far, is culture and culture heritage which are of greater and greater importance for the regional development. Culture heritage can be a resource to strengthen the region and improve the conditions for economic growth. Culture goods constitute an important factor in the development of socio-economic region. They increase tourist attractiveness contributing to the development of tourism and agro-tourism in the area. The rich history, multi-layered and diverse culture heritage, both tangible and intangible, can be one of the main assets of raising the competitiveness of the given region in the country and the European Union (EU). It should be assumed that in a market economy town or municipality operate in a manner similar to enterprise, they produce products and services offered to the internal market (municipality) as well as to external one (surrounding of the municipality). Competitive conditions require the use of all tools to increase the effectiveness of the operation, including marketing tools. Being a marketing issue a product, which is offered by a city/town, can be considered in two aspects: first as a mega-product (i.e., a city/town as a whole), second as a distribution of a mega-product for individual municipal sub-products. Presented concept of a product offered by a city in its two distinctions can be also applied to a municipality. Market-based approach in relation to territorial units is usually called "territorial marketing". Alternatively, they can be also called "spatial marketing" and "area marketing". Depending on the type of territorial units and the scope of marketing activities various concepts are used (e.g., urban marketing and municipal marketing). Currently in Poland these concepts are generally related to basic units of the administrative division of the country namely to urban and rural municipalities. Therefore, for this type of activities one can suggest the term "municipal marketing". 展开更多
关键词 CULTURE HERITAGE region PROMOTION local authorities local marketing
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Study on industry chain based on perfect Songjiang district elderly health
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作者 HAO Xiaozhen 《International English Education Research》 2016年第6期29-32,共4页
In China's rapid aging, old before getting rich, the traditional way of pension weakening, health industry chain shortage situation, combining with the status quo of Shanghai Songjiang District elderly health industr... In China's rapid aging, old before getting rich, the traditional way of pension weakening, health industry chain shortage situation, combining with the status quo of Shanghai Songjiang District elderly health industry and the existing problems are analyzed, based on the existing health industry, practice, to explore the Shanghai Songjiang District is facing in the development of health industry., improve Songjiang elderly health industry chain. 展开更多
关键词 AGING health industry chain IMPROVEMENT
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Biomarker Records of Phytoplankton Productivity and Community Structure Changes in the Central Yellow Sea Mud Area During the Mid-Late Holocene 被引量:12
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作者 ZHAO Xiaochen TAO Shuqin +3 位作者 ZHANG Rongping ZHANG Hailong YANG Zuosheng ZHAO Meixun 《Journal of Ocean University of China》 SCIE CAS 2013年第4期639-646,共8页
The Yellow Sea (YS) environmental and ecological changes during the Holocene are driven by the interactions between the Yellow Sea Warm Current (YSWC), the East Asian Winter Monsoon (EAWM) and the Kuroshio Curre... The Yellow Sea (YS) environmental and ecological changes during the Holocene are driven by the interactions between the Yellow Sea Warm Current (YSWC), the East Asian Winter Monsoon (EAWM) and the Kuroshio Current (KC). We report marine biomarker records of brassicasterol, dinosterol and C37 alkenones in core ZY1 and core ZY2 from the South Yellow Sea (SYS) to reconstruct the spatial/temporal variations and possible mechanisms of phytoplankton primary productivity and community structure changes during the Mid-late Holocene. The contents of the corresponding biomarkers in the two cores are similar, and they also reveal broadly similar temporal trends. From 6kyr to 3kyr, the biomarker contents in the two cores were relatively low with small oscillations, followed by a distinct increase at about 3 kyr indicating productivity increases caused by a stronger EAWM. The alkenone/brassicasterol ratio (A/B) is used as a community structure proxy, which also showed higher values in both cores since 3 kyr, indicating increased haptophyte contribution to total productivity. It is proposed that the YS community structure has been mainly influenced by the YSWC, with stronger YSWC influences causing an increase in haptophyte contribution since 3 kyr. Some differences of the biomarker records between ZY2 and ZYI suggest spatial variations in response to YSWC and KC forcing. When the KC was intensified during the periods of 6-4.2kyr and 1.7-0kyr, the YSWC extended eastward, exerting more influence on core ZY1. On the other hand, when the KC weakened during 4.2-1.7 kyr, the YSWC extended westward, exerting more influence on the ZY2. 展开更多
关键词 BIOMARKER South Yellow Sea PRODUCTIVITY community structure Yellow Sea Warm Current East Asian Winter Monsoon Kuroshio Current
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Pest Management in Museum Collections and Storage Areas (New ApproachmOnline Sensors for Pest Detection)
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作者 Petra Stefcoa Michal Pech +3 位作者 Michael Kotyk Jaroslav Valach Karel Julis Jirl Frankl 《Journal of Environmental Science and Engineering(A)》 2014年第3期163-176,共14页
Common denominator and one of the goals in the "storage" of many, even different, commodities (agricultural, etc.) is their protection against invasion by biological pests; protection of objects of cultural herita... Common denominator and one of the goals in the "storage" of many, even different, commodities (agricultural, etc.) is their protection against invasion by biological pests; protection of objects of cultural heritage deposited in museums, galleries, archives and other institutions of a similar type is one of the specific case. The present article is an overview of basic (potential) biological pests of some "storage" commodities (with emphasis on the protection of objects of cultural heritage) as well as methods used for their detection. In the final section, a modular system of the ongoing assessment of the environmental characteristics of depositaries and exhibitions (including "biological") is briefly presented; its advantage is the possibility of on-line monitoring of the evaluated parameters (temperature, humidity, lighting, etc.) including the detection of presence of crawling and airborne insects. 展开更多
关键词 Protection of objects and buildings of cultural heritage monitoring protection against the dangers of biological damage internal environment sensors.
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Temporal and spatial differences and imbalance of China's urbanization development during 1950-2006 被引量:7
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作者 方创琳 刘晓丽 《Journal of Geographical Sciences》 SCIE CSCD 2009年第6期719-732,共14页
A better understanding of the regional disparity and imbalance characteristics of China's urbanization development is the important premise for constituting correct policy and strategy and promoting the healthy an... A better understanding of the regional disparity and imbalance characteristics of China's urbanization development is the important premise for constituting correct policy and strategy and promoting the healthy and sustainable development of urbanization in the 21st century. The regional differences of China's urbanization level have close relations with natural conditions of landform and climate etc.,the urbanization level reduces with the eleva-tion of topography and decrease of precipitation. According to the statistical data set of ur-banization in 1950-2006,the temporal change course of inter-provincial disparity of Chinese urbanization level since the founding of New China in 1949 was studied,and then the inter-regional and intra-regional disparities of urbanization development were analyzed by the Theil index and its nested decomposition method,to grasp the dynamic change of spatial disparities of China's urbanization level on the whole. Using the imbalance index model,the imbalance status of urban population distribution relative to total population,grain output,total agricultural output value,gross output value of industry,tertiary industrial output value as well as gross regional product was discussed,to hold the balance characteristics of urbanization development relative to the regional development conditions from the macroscopic scales. 展开更多
关键词 URBANIZATION DIFFERENCE imbalance index China
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The Common Principal Component Analyses of Multi-RCMs
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作者 FENG Jin-Ming WANG Yong-Li FU Cong-Bin 《Atmospheric and Oceanic Science Letters》 CSCD 2013年第1期14-20,共7页
Based on a 10-year simulation of six Regional Climate Models(RCMs) in phase II of the Regional Climate Model Inter-Comparison Project(RMIP) for Asia,the multivariate statistical method of common principal components(C... Based on a 10-year simulation of six Regional Climate Models(RCMs) in phase II of the Regional Climate Model Inter-Comparison Project(RMIP) for Asia,the multivariate statistical method of common principal components(CPCs) is used to analyze and compare the spatiotemporal characteristics of temperature and precipitation simulated by multi-RCMs over China,including the mean climate states and their seasonal transition,the spatial distribution of interannual variability,and the interannual variation.CPC is an effective statistical tool for analyzing the results of different models.Compared with traditional statistical methods,CPC analyses provide a more complete statistical picture for observation and simulation results.The results of CPC analyses show that the climatological means and the characteristics of seasonal transition over China can be accurately simulated by RCMs.However,large biases exist in the interannual variation in certain years or for individual models. 展开更多
关键词 RMIP for Asia common principal compo- nents spatiotemporal characteristic interannual variation
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Living (on) Archaeological Sites in Turkey: Engagement of Local Communities into Decision Making Process
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作者 Nida Naycl 《History Research》 2014年第1期1-16,共16页
Archeological sites have been considered as "dead" sites consisted from building remain buried into ground in modern heritage management doctrines for a long period. Thus their conservation policies are mainly shape... Archeological sites have been considered as "dead" sites consisted from building remain buried into ground in modern heritage management doctrines for a long period. Thus their conservation policies are mainly shaped according to this Western perspective. After the spread of international doctrines in conservation of cultural heritage to other parts of the world, it was realized that some archaeological sites were more than group building remains. They were pilgrim sites for the local communities continuously for centuries onwards. Even in some cases, they have traditional management systems to take care for the site. This has raised the awareness about the gaps in modern heritage conservation approaches. International organizations have mentioned about the involvement of local groups in heritage management systems considering their traditional and cultural association with the cultural site. This has provided shifting of conservation approaches from conventional approaches towards living heritage approach in such delicate cultural heritage sites. The purpose of this paper is to discuss the historic generation of policies towards local communities living on archaeological sites in Turkey comparing the policies between living (on) archaeological sites and living archaeological sites approach. 展开更多
关键词 archaeological site living heritage MANAGEMENT local communities
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Impacts of Climate Change on Net Primary Productivity in Arid and Semiarid Regions of China 被引量:15
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作者 WANG Hao LIU Guohua +3 位作者 LI Zongshan YE Xin WANG Meng GONG Li 《Chinese Geographical Science》 SCIE CSCD 2016年第1期35-47,共13页
In recent years, with the constant change in the global climate, the effect of climate factors on net primary productivity(NPP) has become a hot research topic. However, two opposing views have been presented in this ... In recent years, with the constant change in the global climate, the effect of climate factors on net primary productivity(NPP) has become a hot research topic. However, two opposing views have been presented in this research area: global NPP increases with global warming, and global NPP decreases with global warming. The main reasons for these two opposite results are the tremendous differences among seasonal and annual climate variables, and the growth of plants in accordance with these climate variables. Therefore, it will fail to fully clarify the relation between vegetation growth and climate changes by research that relies solely on annual data. With seasonal climate variables, we may clarify the relation between vegetation growth and climate changes more accurately. Our research examined the arid and semiarid areas in China(ASAC), which account for one quarter of the total area of China. The ecological environment of these areas is fragile and easily affected by human activities. We analyzed the influence of climate changes, especially the changes in seasonal climate variables, on NPP, with Climatic Research Unit(CRU) climatic data and Moderate Resolution Imaging Spectroradiometer(MODIS) satellite remote data, for the years 2000–2010. The results indicate that: for annual climatic data, the percentage of the ASAC in which NPP is positively correlated with temperature is 66.11%, and 91.47% of the ASAC demonstrates a positive correlation between NPP and precipitation. Precipitation is more positively correlated with NPP than temperature in the ASAC. For seasonal climatic data, the correlation between NPP and spring temperature shows significant regional differences. Positive correlation areas are concentrated in the eastern portion of the ASAC, while the western section of the ASAC generally shows a negative correlation. However, in summer, most areas in the ASAC show a negative correlation between NPP and temperature. In autumn, precipitation is less important in the west, as opposed to the east, in which it is critically important. Temperatures in winter are a limiting factor for NPP throughout the region. The findings of this research not only underline the importance of seasonal climate variables for vegetation growth, but also suggest that the effects of seasonal climate variables on NPP should be explored further in related research in the future. 展开更多
关键词 climate change net primary productivity (NPP) annual/seasonal variability trend analysis arid/semiarid regions of China(ASAC)
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