Geographical Science Research最新文献

{"title":"井下探放水钻孔涌水量优化预测及水量衰减规律研究 The Optimization of Drilling Water Inflow Prediction about the Underground Drain and the Study on the Attenuation Law of Water","authors":"时焱红, 陈秀艳","doi":"10.12677/GSER.2015.41004","DOIUrl":"https://doi.org/10.12677/GSER.2015.41004","url":null,"abstract":"以钱营孜煤矿3212工作面探放水工程为例，针对目前煤矿安全生产中“钻孔涌水量预测”的重要问题，在分析计算不同阶段和条件下的矿井涌水量的基础上，对涌水量计算结果的准确性与群孔探放钻孔涌水量干扰进行分析，研究工作面涌水量衰减规律。研究表明：采用大井法优化方法预计探放水过程中钻孔涌水量，较原计算方法更合理，更符合地下水运动规律。在同一个钻窝内进行多个钻孔的探放时，相邻钻孔的初始水量有减小的趋势。以静储量为主的煤系砂岩裂隙水，随着疏放探放水钻孔的涌水量总体呈下降趋势。 Taking QianYingZi coal mine 3212 working face of draining project as an example, specific to the important issue of “borehole water inflow forecast” during the present situation of coal mine safety production, based on the analysis and calculation of mine water inflow in different stages and conditions, we research the attenuation law of water inflow on the working face by analysing the accuracy on the calculation results of the inflow and the interference of the group of exploration boreholes inflow. Researches show that: the big well method is more reasonable than the original calculation method in process of the optimization to drain hole water in flow and it is more in line with groundwater movement rule. For multiple drilling exploration in the same drill socket, adjacent borehole of initial water has a tendency to decline. Give priority to those with static reserves of coal measures hole as a whole, it is on the decline.","PeriodicalId":171984,"journal":{"name":"Geographical Science Research","volume":"111 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122298845","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"基于SWOT-PEEST方法的瑞丽姐告旅游发展优劣势分析及对策 Analysis Ruili Jiegao’s Advantages and Disadvantages in Tourism Development and Countermeasure Based on the Method of SWOT-PEEST","authors":"毛昕, 明庆忠, 贺珉, 段晨, 李长凤","doi":"10.12677/GSER.2015.41001","DOIUrl":"https://doi.org/10.12677/GSER.2015.41001","url":null,"abstract":"姐告人文资源丰富，以自然景观资源为辅，边关民族特色浓郁。旅游资源组合好、级别高，具有良好的区位、资源优势。但也有资源种类不全、比较优势不足等劣势。文章从政治、经济、生态、社会、科技等五个角度对姐告发展旅游的优势、劣势、机遇和威胁进行系统分析，旨在促进区域旅游的持续发展。 Jiegao, which has characteristic nation in a border area, is full of not only human resources but also natural landscape resources complementally. It is provided with a nice high level tourist resource combination and the advantage of location and resource. Nevertheless, there are also some dis-advantages, such as the limited resource types, lacking of comparative advantage and so on. This article has been a system analysis of the development tourism in Jiegao, which in the view of the political, economic, environmental, social, and technology fields for its strengths, weaknesses, opportunities and threats, and aims to promote the sustainable development of regional tourism.","PeriodicalId":171984,"journal":{"name":"Geographical Science Research","volume":"221 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121255215","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"全新世以来江汉平原地形及其环境变化探讨 The Terrain and Climatic Change of Jianghan Plain since Holocene","authors":"思思 陈, 熊飞 王","doi":"10.12677/GSER.2014.34005","DOIUrl":"https://doi.org/10.12677/GSER.2014.34005","url":null,"abstract":"本文以江汉平原的钻孔作为研究对象，收集了10个位于江汉平原WE向的钻孔资料。这10个钻孔资料都是前人发表的数据，综合分析这些钻孔数据，绘制出了江汉平原自西向东地层联孔图。通过对钻孔数据的分析，重建了全新世以来江汉平原地形变化和环境变化。结果显示，全新世以来江汉平原的地形和气候变化可以分为三个阶段：在全新世初期（10~7ka BP），江汉平原大部分地区相对平坦，秦市乡潭彩剅村和沔城一带相对比较低洼，这一时期主要受到河流切割作用；全新世大暖期期间（7~3ka BP），由于长江和汉江等河流洪泛沉积发育，洪水携带的沉积物在秦市乡潭彩剅村和沔城一带相对比较低洼的地方快速堆积；约3ka BP时，江汉平原的地形和全新世初期比已经有了很大变化，很多低洼的地方和一些深的凹槽已经基本上被填平，地形起伏变得缓和，此后江汉平原的地形受人类影响越来越大。Based on the borehole of Jianghan Plain as the research object, the date of 10 boreholes located in the East-West of Jianghan Plain were collected. These data were published by previous studies. Stratigraphic map from west to east of the Jianghan Plain is drawn out through comprehensive analysis of these drilling data. Through the analysis of drilling data, the terrain and climatic change since Holocene have been reconstructed. The research result shows that terrain and climatic changes of Jianghan Plain can be divided into three stages as follows: in 10 - 7 ka BP, most of the regions were relatively flat. Tancaidou village in Qinshi country and Miancheng area were relatively low. This period were mainly formed by river cutting action; during 7 - 3 ka BP because of the Yangtze river and Hanjiang river flood deposit development, the sediment carried by flood accumulate rapidly in relatively low area of Tancaidou village in Qinshi country and Miancheng area; ~3 ka BP many low-lying areas and some deep grooves have basically been filled. Then Jianghan Plain terrain influenced by human is growing.","PeriodicalId":171984,"journal":{"name":"Geographical Science Research","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116384614","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Regional Transportation Accessibility Spatial-Temporal Pattern Evolution and Tourism Effects","authors":"刘 安乐","doi":"10.12677/GSER.2014.34006","DOIUrl":"https://doi.org/10.12677/GSER.2014.34006","url":null,"abstract":"选择云南省为研究对象，加权平均旅行时间为指标，运用ArcGIS10.0网络分析技术测算云南省16个州市中心城镇1996、2001、2006和2011年的可达性值，在此基础上系统分析了云南省交通可达性时空演化格局，运用广义可加模型分析云南交通可达性时空演化的旅游效应。结果表明：1) 1996~ 2011年间，云南省可达性空间格局总体呈现以昆明为中心向外围区域递减的“核心–外围”模式；2) 云南省整体可达性明显优化，各中心城市节点的可达性水平均有大幅度的提升，但在不同阶段可达性优化程度不同；3) 不同时间段可达性变化空间格局差异较大，边缘地区可达性值提高幅度始终大于中心地区；4) 云南省交通可达性优化对旅游发展产生了正溢出效应。Accessibility values based on 16 central towns in Yunnan Province in 1996, 2001, 2006 and 2011 have been measured using ArcGIS10.0 Network analysis technology choosing Yunnan Province as the research object, the weighted average travel time as an indicator. On the basis the article has done a systematic analysis of the Spatio-temporal evolution pattern of the traffic accessibility in Yunnan Province by using generalized additive models (GAM) to analysis the tourism effect about the spatio-temporal evolution pattern of the transportation accessibility in Yunnan Province. Results are shown as follows: 1) In the study period (1996-2011), the spatial pattern of accessibility in Yunnan Province shows a “core-periphery” model as a whole, and as the core area in Kunming has been gradually expanded; 2) The accessibility of Yunan Province was optimized obviously; the accessibility level of major city nodes have greatly increased, but at different stages the degree is different; 3) There has a greater difference about spatial pattern of accessibility change between different stages; 4) The transportation accessibility optimization has positive spillover effects on the tourism development in Yunnan province.","PeriodicalId":171984,"journal":{"name":"Geographical Science Research","volume":"227 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120877909","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"抚仙湖主要现代介形虫生态习性研究 Study on the Ecological Habits of Main Recent Ostracodes in Fuxian Lake","authors":"姗姗 刘, 曼平 谢","doi":"10.12677/GSER.2014.34007","DOIUrl":"https://doi.org/10.12677/GSER.2014.34007","url":null,"abstract":"本文主要通过野外采集的抚仙湖表层沉积物及相关湖泊环境信息，对该湖泊中现代介形虫种类及其生态特征进行了研究。主要描述了抚仙湖中克氏瘤丽星介Physocupria kraelini、非调和异星介Heterocypris incongruens、泽氏玻星介Candonocypris novaezelandiae、鹤庆盆地新属种Parachinocythere reticulata gen. et sp. nov.进一步充实云南地区现代介形虫的生态资料，为今后将介形虫这一替代指标用于古环境古气候的恢复工作中，提高云南地区地球科学的研究水平等工作起铺垫作用。The paper describes the species and ecological characteristics of the Modern Ostracodes in the Lake Fuxian, through the field acquisition of the lake surface sediment and related environment. It mainly describes the Physocupria kraelini, Heterocypris incongruens, Candonocypris noveazelandiae, Parachinocythere reticulate gen.et sp.nov to further enrich the Modern Ostracodes ecosystem in Yunnan area and play a foreshadowing role to improve the research level of the Yunnan area of earth science work.","PeriodicalId":171984,"journal":{"name":"Geographical Science Research","volume":"115 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131184710","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"兰陵县居民出行特征分析及公共交通体系建设研究 Analysis on Characteristics of the Resident Trip and Study on the Establishment of City’s Public Transportation System in Lanling County","authors":"红梅 张","doi":"10.12677/GSER.2014.33004","DOIUrl":"https://doi.org/10.12677/GSER.2014.33004","url":null,"abstract":"本文通过对兰陵县城市居民出行情况进行抽样调查，获得居民出行相关数据，在此基础上分析居民出行特征。研究表明：兰陵县居民出行距离不长，以非机动方式出行为主，上学上班出行人口为主，高峰峰值显著等。根据兰陵县居民交通需求的水平，建议优先发展公共交通，进一步提高公共交通系统服务水平，制定公交发展战略、完善公交经营管理体制和运行机制、加强交通基础设施建设、规范公交运行管理，从而构建完善的公共交通体系。 \u0000Based on the sampling survey of Lanling county residents trip conditions and the analysis of the residents trip characteristics, we got the following special transportation characteristics: the trip distance of Lanling county residents was not long, thus the non-motor vehicle trip was the main way; moreover, the majority of trip population were students and workers, resulting in an obvious trip peak at the commuter time; etc. According to the traffic demands level of Lanling county residents, it’s suggested to develop the public transport in priority and improve the public transport system service level. Our data showed that a better public transport system could be constructed from a comprehensive management of development, policy, economic and other aspects.","PeriodicalId":171984,"journal":{"name":"Geographical Science Research","volume":"124 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122190847","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"面向历史土地利用研究的苏皖地区耕地分布的影响因子分析及宜垦性模型构建 Analysis of the Impact Factors of Cropland Distribution and Model Building in Jiangsu and Anhui for Historical Land Use Research","authors":"蓓蓓 李, 学琼 魏, 修琦 方","doi":"10.12677/GSER.2014.32003","DOIUrl":"https://doi.org/10.12677/GSER.2014.32003","url":null,"abstract":"精确的格点化区域历史土地利用数据是进行历史土地利用/土地覆被变化环境效应模拟的基础。由于缺少充足可信的历史图件等资料，历史网格化数据无法直接获取，通常是根据现代耕地分布格局及其形成的驱动因素，对某一区域的历史耕地总和数据进行降尺度的格点化分配。本文以苏皖地区为例，基于现代遥感数据分析了耕地空间分布与气候、坡度、海拔高度、土壤、河流湖泊、人口等因子的关系，发现影响苏皖地区耕地分布最为关键的因素是河湖及坡度。河流湖泊地区为非耕地的剔除区域，坡度与垦殖率的相关系数高达−0.628，苏皖地区海拔未达到气候影响下的耕地垦殖上限。在此基础上构建了耕地空间分布模型，对现代的耕地格局进行10 km × 10 km的模型重建，并进行了模型评估检验。检验结果显示，无论是从均值还是从相关系数或标准偏差来看，宜垦性模型的空间分配结果与现代遥感数据的空间格局差异均不大，两者的相关系数R为0.798，标准偏差S为22.2，两者差值的均值为0.09。该现代宜垦性模型能够用于耕地格局重建，可为该区历史时期耕地数据网格化处理提供参考。 \u0000Accurate historical gridded data of land use are the base for the environmental effect simulation of the land use/land cover change. Because of lacking of sufficient credible historical map data, his-torical grid data couldn’t access directly. It is usually assigned downscaling based on the modern distribution pattern of cropland and its driving factors. This paper analyzed the relationship be-tween spatial distribution of cropland and climate, slope, elevation, soil, river and lake, population based on modern remote sensing data in Jiangsu and Anhui. The most key factors in Jiangsu and Anhui are river and elevation. The area that river flows through doesn’t distribute cropland. The correlation coefficient of slope and reclamation rate is as high as −0.628; the highest elevation in Jiangsu and Anhui is under the upper limit elevation that can be cultivated because of climate. The paper also constructed the cropland spatial distribution model with spatial resolution of 10 km × 10 km, and assessed the model. It is suggested that the reconstruction data and the remote sensing data are not different obviously from the correlation coefficient or standard deviation. The corre-lation coefficient is 0.821 and the standard deviation is 20.6. This model can be used in cropland reconstruction in Jiangsu and Anhui, and provide references for historical cropland gridded data.","PeriodicalId":171984,"journal":{"name":"Geographical Science Research","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124688972","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of the Ecological Civilization Construction of HuBaoE Area in Inner Mongolia","authors":"甄 江红","doi":"10.12677/GSER.2013.23009","DOIUrl":"https://doi.org/10.12677/GSER.2013.23009","url":null,"abstract":"正确判断区域生态文明建设水平及其演进特征，对缓解生态危机、推进生态文明建设具有重要意义。基于生态文明建设的内涵与目标，本文构建了生态文明建设综合评价指标体系、标准与模型，运用熵技术支持下的层次分析与灰色关联方法，对1990~2010年间内蒙古呼包鄂地区生态文明建设水平及其时空变化进行了测度与分析。结果表明：1990年以来呼包鄂地区生态文明建设水平不断提高，现已进入生态文明建设的中级阶段；研究时段内呼包鄂地区生态文明建设具有阶段性特征，2000年以来开始步入加速发展时期，近年来生态文明建设状况优于全区平均水平。但研究区生态文明建设水平及其发展速度具有区域差异，生态文明建设各分量指数的发展趋势亦不尽相同，其中以呼和浩特市生态文明建设的总体水平较好，包头市生态文明建设发展速度较快；生态环境、生态保障与生态经济指数显著提高，而生态社会与生态文化建设水平相对较低且发展缓慢。 Correct judgement of regional ecological civilization construction stage and its evolution charac- teristics has an important significance to alleviate the ecological crisis and to accelerate the ecological civili- zation construction. Based on the concept and objective of ecological civilization construction, this paper constructs a comprehensive evaluation index system, standard and assessment model of ecological civiliza- tion construction. Using the Analytical Hierarchy Process based on the entropy technical support and the grey correlation method, the paper calculates and analyzes the ecological civilization construction level and the spatial-temporal change of HuBaoE area in Inner Mongolia during 1990-2010. The results show: The eco- logical civilization construction level of HuBaoE area has risen ceaselessly since 1990, and it has entered the middle stage of ecological civilization construction. The development speed of ecological civilization con- struction had stage characteristics during the study period and it has entered the period of accelerated devel- opment since 2000. In recent years, the ecological civilization construction level of HuBaoE area is superior to the average level of Inner Mongolia. But there are regional differences of the ecological civilization con- struction level and its development speed among HuBaoE cities, and the development trend of each compo- nent index were not the same. The overall level of the ecological civilization construction is better in Hohhot city, the development speed of ecological civilization construction is faster in Baotou city. Ecological envi- ronment, ecological security and ecological economic index improved significantly during the study period, while ecological society and ecological culture construction level are relatively low and develop slowly.","PeriodicalId":171984,"journal":{"name":"Geographical Science Research","volume":"02 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131128936","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Evaluation on Local Investment Environments from Taiwan-Funded Enterprises—In the Case of Huai’an","authors":"徐 海英","doi":"10.12677/GSER.2013.23010","DOIUrl":"https://doi.org/10.12677/GSER.2013.23010","url":null,"abstract":"本文构建投资环境综合评价指标体系，在此基础上运用层次分析法分析了江苏省淮安市台资企业对本地投资环境评价状况。数据来源于访谈和问卷。研究发现:台资企业对淮安基础设施建设和政府支持最为满意；对淮安的产业配套条件满意度最低；本地制度文化环境因素在一定程度上也无法达到台商要求。 This paper makes a comprehensive evaluation index system about the investment environment, and uses AHP approach to analyze how Taiwan’s enterprises evaluate local investment environment. All data comes from face-to-face interviews and questionnaires. There are some findings as follows: local infrastruc- tures and local government meet Taiwan’s enterprises well. However, local supporting industry cannot satisfy them. Moreover, local culture and institutions are also not coupling with the demands of Taiwan’s enterprises.","PeriodicalId":171984,"journal":{"name":"Geographical Science Research","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114216310","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Spatio-Temporal Response of Vegetation NPP to Land Use/Land Cover Change in Guangzhou","authors":"付 迎春","doi":"10.12677/GSER.2013.23008","DOIUrl":"https://doi.org/10.12677/GSER.2013.23008","url":null,"abstract":"植被净初级生产力(NPP)指单位面积和单位时间内转换并固定下来的碳量，是反映城市扩张和人类活动对生态系统影响的重要指标，探索巨型城市——广州在快速城市化时期的NPP动态及其影响具有重要意义。本文应用MODIS-1km NPP影像数据开展2001~2006年广州市净初级生产力的时空格局变化分析，及NPP对土地利用覆被变化响应特征的初步探究。结果表明广州市城区及近郊NPP主要分布在250~500 gC·m−2·a−1，山区NPP主要分布在500~750 gC·m−2·a−1，总体呈现出2001~2003以0.13平均速率增长，而后在2003~2006年以−0.75的平均速率下降的趋势。广州市不同地区NPP总量和土地利用覆被变化率分布均存在明显差异。通过对比土地利用覆被变化驱动的NPP转移强度比例，发现灌丛、木本草地和混交林等高NPP均值地类转为草地和农用地等低值NPP地类，是NPP下降的主要原因。这与城市扩张后通过复垦这些地类来保持农用地数量平衡的策略密切相关，各地类上NPP的变化清晰指示了生态系统对城市化及人类活动的响应。 Net primary productivity (NPP) is defined as the organic carbon accumulated by green plants photosynthesis in per area and time, and as a key ecological indicator reflecting the impacts of urbanization expansion and Human activities on the ecosystem. It is significant to explore NPP variations in a fast urbani- zation case of mega city, Guangzhou. This research applies MODIS-1km NPP data to analyze spatio-tempo- ral pattern variation of NPP and its response to the changes of land use/land cover (LULCC) in Guangzhou during the period of 2001-2006. NPP time-series data were obtained through the projection and pretreatment of MOD17A3, and spectral angle mapper (SAM) decision tree was applied to obtain 8 vegetation types, of which the classification accuracy was more than 80%. The results display that NPP varied with range of 250~ 500 gC·m−2·a−1 in the urban central areas and the suburb areas, and 500~750 gC·m−2·a−1 in mountainous re- gions. Moreover, NPP increased with ratio of 0.13 from 2001 to 2003, and decreased with an average change rate of −0.75 per year from 2003 to 2006. There were distinct NPP variations and the land covers transfer among the central, suburb and exurb areas in Guangzhou. By contrasting NPP conversion intensity driven by LULCC, it was found that the land covers with high NPP value such as shrublands, woody savannas and mixed forest turn into land covers with low value such as grassland and croplands that mainly led to the loss of NPP. The case is related with the strategy of balancing the croplands through reclaiming these vegetation covers. Therefore, the NPP variation of different land use/land cover indicated the response of ecosystems to urbanization and human activities.","PeriodicalId":171984,"journal":{"name":"Geographical Science Research","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132500498","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}