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星光引领发展 梦想成就未来——摄山星城小学简介
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《生活教育》 2019年第3期129-129,共1页
南京市摄山星城小学始建于1952年,占地72亩,建筑面积22000平方米,教育技术装备先进。学校现有1352名学生,35个教学班,118名专任教师,其中区级及以上名优骨干教师21人。近年来,学校围绕栖霞区教育整体发展思路,确定'星光'文化,坚... 南京市摄山星城小学始建于1952年,占地72亩,建筑面积22000平方米,教育技术装备先进。学校现有1352名学生,35个教学班,118名专任教师,其中区级及以上名优骨干教师21人。近年来,学校围绕栖霞区教育整体发展思路,确定'星光'文化,坚持'同心同光美若天成'的精神,遵循'修文星之才立美善之品'的校训,为把学校办成'文韵飘香的智慧学园,星光璀璨的品牌校园'而不断努力。学校依托和南外仙林分校合作办学的优势,充分发挥周边高校资源、区域共同体学校资源、境外友好学校资源等,推进学校优质发展。' 展开更多
关键词 教育 星光 小学 资源 学校 发展 山星
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都市家园的再造——摄山星城二期规划设计
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作者 杨海 《江苏建筑》 2007年第4期11-13,共3页
建筑是根植于大地的,形式的意义来源于地方文脉。文章以南京仙林新区摄山星城二期居住区规划设计为例,介绍了总体思路、规划理念、建筑设计以及环境规划,探讨了基于地方文脉的都市新家园的建构方式。
关键词 山星城二期 地方文脉 都市家园
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Genetic diversity and genetic structure of the Daurian Partridge(Perdix dauuricae) in China,assessed by microsatellite variation 被引量:1
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作者 曹曼曼 刘迺发 +1 位作者 王小立 关猛猛 《Chinese Birds》 2010年第1期51-64,共14页
The Daurian Partridge(Perdix dauuricae) is a kind of hunting bird with high economic value.Genetic diversity and structure in the Daurian Partridge were studied by analyzing eight microsatellite loci in 23 populations... The Daurian Partridge(Perdix dauuricae) is a kind of hunting bird with high economic value.Genetic diversity and structure in the Daurian Partridge were studied by analyzing eight microsatellite loci in 23 populations found throughout the range of the species in China.The objectives were to evaluate the consequences on genetic diversity and differentiation of Daurian Partridge populations and to obtain a profound genetic insight for future management decisions and for effective measures to protect and exploit Daurian Partridges.The results showed that microsatellites were polymorphic in all Daurian Partridge populations,with a high level of genetic diversity over all the loci,especially in the Qaidam Basin populations which have the highest level of diversity.Significant genetic divergence was observed among different groups as well as between populations within the same group;most pairwise FST values were highly significant.Both phylogenetic trees and Bayesian clustering analyses revealed clear differentiation among the 23 populations of the Daurian Partridge,which were classified into two genetically differentiated groups.A bottleneck analysis indicated that Daurian Partridge populations have experienced a recent bottleneck.Our study argues that the Qaidam populations,North China populations,JN population,ZJC population,and Liupan Mountain populations should be paid special attention in order to retain adequate population sizes for maintaining genetic diversity. 展开更多
关键词 Daurian Partridge MICROSATELLITE genetic diversity genetic structure BOTTLENECK
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Microsatellites underestimate genetic divergence in the Green-backed Tit (Parus monticolus) 被引量:2
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作者 王文娟 戴传银 +3 位作者 Bailey D.MCKAY 赵娜 李寿先 雷富民 《Chinese Birds》 CSCD 2013年第2期144-154,共11页
Although a growing number of both sequence-based and microsatellite nuclear loci have been used to infer genetic structures, their relative efficiencies remain poorly understood. In our study, we used the Green-backed... Although a growing number of both sequence-based and microsatellite nuclear loci have been used to infer genetic structures, their relative efficiencies remain poorly understood. In our study, we used the Green-backed Tit (Parus monticolus) to explore the resolving ability of these two types of markers. The south-western and central mitochondrial DNA (mtDNA) phylogroups were divergent to some extent in sequence-based nuclear data, while mixed together in microsatellites data. The F ST values among clades were about four times lower in microsatellite loci than those in sequence-based nuclear loci. We are of the opinion that size homoplasy may have contributed to the inability of microsatellites to uncover differentiation. Our results suggest that sequence-based nuclear loci outperformed microsatellite loci in detecting population structures, especially those focused on populations with large effective population sizes. There was no significant correlation between F ST values and allelic size variability, which suggested that the efficiency of microsatellite loci in detecting genetic structure may be independent of their polymorphism. F ST is better than R ST in detecting intraspecific divergence due to the high variance of R ST . In agreement with sequence-based nuclear loci, microsatellite loci did resolve the genetic distinctness of the Taiwan Residents phylogroup. The genetic differentiation between the Taiwan Residents and continental clades may involve allopatric divergence without gene flow. 展开更多
关键词 genetic structure MICROSATELLITE Parus monticolus sequence-based nuclear data size homoplasy
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Characterizing Spatial Patterns of Precipitation Based on Corrected TRMM_3B_(43) Data over the Mid Tianshan Mountains of China 被引量:9
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作者 JI Xuan CHEN Yunfang 《Journal of Mountain Science》 SCIE CSCD 2012年第5期628-645,共18页
The poor distribution of meteorological stations results in a limited understanding of the precipitation pattern in the Tianshan Mountains. The spatial patterns of precipitation over the mid Tianshan Mountains were ch... The poor distribution of meteorological stations results in a limited understanding of the precipitation pattern in the Tianshan Mountains. The spatial patterns of precipitation over the mid Tianshan Mountains were characterized based on the TRMM 3B43 monthly precipitation data. By comparing satellite estimates with observed data, it shows that TRMM 3B43 data underestimate the precipitation in mountain region. Regression models were developed to improve the TRMM 3B43 data, using geographic location and topographic variables extracted from DEM using GIS technology. The explained variance in observed precipitation was improved from 64% (from TRMM 3B43 products alone) to over 82% and the bias reduced by over 30% when location and topographic variables were added. We recalculated all the TRMM 3B43 monthly precipitation grids for the period 1998 to 2009 using the best regression models, and then studied the variation patterns of precipitation over the mid Tianshan Mountains. The results are well explained by a general understanding of the patterns of precipitation and orographic effects. This indicated that the Tianshan Mountains strongly influences the amount and distribution of precipitation in the region. This is highlighted by the confinement of the precipitation maxima to the windward (northern slope). And complex vertical changes in the provenance and distribution of precipitation, like that a negative increasing rate of precipitation in the vertical direction exists in the north but does not in south. The results have also revealed large gradients and different patterns in seasonal precipitation that are not simply related to elevation, the distribution of precipitation may also be affected by other seasonal factors such as the sources of moist air, wind direction and temperature. 展开更多
关键词 Spatial pattern PRECIPITATION TianshanMountains TRMM
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FEASIBLE STUDY ON THE INTEGRATION SYSTEM FOR THE SPACE MONITORING OF MAJOR EARTHQUAKES AND VOLCANOES IN TERRESTRIAL LAND 被引量:2
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作者 BO Li-qun(Changchun Institute of Geography,t he Chinese Academy of Sciences,Changchun 130012,P.R.China) 《Chinese Geographical Science》 SCIE CSCD 2002年第4期350-353,共4页
With the rapid development of space technology,earth observation tech nology and sky observatory technolo-gy,they have played a more and more im portant part in monitoring and predi cting of earthquakes and volcanoes ... With the rapid development of space technology,earth observation tech nology and sky observatory technolo-gy,they have played a more and more im portant part in monitoring and predi cting of earthquakes and volcanoes i n the terres-trial land.In recent years,the rela ted agencies have done the experimen ts and researches on monitoring and p redicting of earthquakes and volcanoes in the forewarning period by means of many appr oaches,such as satellite thermal in frared re-mote sensing(TIRS),Global Positioning System(GPS),differential interferometric syn thesis aperture radar(D-INSAR),astronomical time-latitude residual anomaly,and Geographic Information Systems (GIS),etc.A quite large number of re-search foundation has been built in t he fundamental theories and applica tion methods.The experiments and re searches have shown that these technology is e fficient methods for high frequency crust movement.If the existed separate scientific forces and results are possibly asse mbled together to form a more complete integration monitoring system wit h the combina-tion of space,sky observation,grou nd,deep geology and macro anomaly,i t will come into a new stage of monitoring and predicting of earthquakes and volca nic eruptions. 展开更多
关键词 space technology integration system earthquake and volcano
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Review of Shadow Detection and De-shadowing Methods in Remote Sensing 被引量:10
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作者 AmirReza SHAHTAHMASSEBI YANG Ning +2 位作者 WANG Ke Nathan MOORE SHEN Zhangquan 《Chinese Geographical Science》 SCIE CSCD 2013年第4期403-420,共18页
Shadow is one of the major problems in remotely sensed imagery which hampers the accuracy of information extraction and change detection.In these images,shadow is generally produced by different objects,namely,cloud,m... Shadow is one of the major problems in remotely sensed imagery which hampers the accuracy of information extraction and change detection.In these images,shadow is generally produced by different objects,namely,cloud,mountain and urban materials.The shadow correction process consists of two steps:detection and de-shadowing.This paper reviews a range of techniques for both steps,focusing on urban regions(urban shadows),mountainous areas(topographic shadow),cloud shadows and composite shadows.Several issues including the problems and the advantages of those algorithms are discussed.In recent years,thresholding and recovery techniques have become important for shadow detection and de-shadowing,respectively.Research on shadow correction is still an important topic,particularly for urban regions(in high spatial resolution data) and mountainous forest(in high and medium spatial resolution data).Moreover,new algorithms are needed for shadow correction,especially given the advent of new satellite images. 展开更多
关键词 SHADOW detection de-shadowing URBAN FOREST
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Mapping and Assessing Typhoon-induced Forest Disturbance in Changbai Mountain National Nature Reserve Using Time Series Landsat Imagery 被引量:5
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作者 GUO Xiao-yi ZHANG Hong-yan +1 位作者 WANG Ye-qiao John Clark 《Journal of Mountain Science》 SCIE CSCD 2015年第2期404-416,共13页
Monitoring forest disturbances is important for understanding changes in ecosystems. The 1986 Typhoon Vera was a serious disturbance that severely impacted the forest ecosystems of Changbai Mountain National Nature Re... Monitoring forest disturbances is important for understanding changes in ecosystems. The 1986 Typhoon Vera was a serious disturbance that severely impacted the forest ecosystems of Changbai Mountain National Nature Reserve. Although the typhoon disturbance occurred more than two decades ago, the effects of the typhoon still remain within the study area. Few studies have focused on mapping and assessing disturbances across broad spatial and temporal scales. For this study, we first generated a map of forest composition prior to the typhoon disturbance, which served as a baseline data for the extraction of disturbed area. Then, the Disturbance Index(DI) method was tested for mapping the extent and magnitude of disturbance in the study area by applying a Tasseled Cap transformation to the Landsat imagery. The Landsatbased DI method estimated that an area of 13,764.78 ha of forest was disturbed by the typhoon. Based on visual assessments, these results correspond closely with the reference map derived from ground surveys. These results also revealed the influence of local topographic features on the distribution of windthrow areas. Windthrow areas were more pronounced inareas with elevations ranging from 1,000 to 2,000 m, slopes of less than 10 degrees, and southwestern to northwestern aspects. In addition, the relatively long(25 years) post-typhoon recovery period assessed by this study provided a more comprehensive analysis of the dynamics of forest recovery processes over time. Windthrow areas did not recover immediately after the typhoon, likely due to forest management practices enacted at the time. So far, forest recovery has proceeded more rapidly at elevations below 1,400 m, particularly on western slopes within the study area. Finally, a time series of DI values within the study period suggests a secondary disturbance may have occurred between 2000 and 2001. 展开更多
关键词 Typhoon Vera Windthrow areas Disturbance Index(DI) Topographic features Forest recovery process
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Study of Triggering Action Between the Mani (M_S7.9) and the West Kunlun Mountains Pass (M_S8.1) Great Earthquakes and Their Dynamic Background 被引量:1
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作者 ChenBing JiangZaisen +3 位作者 CheShi WangQingliang ZhuGuizhi WangJiying 《Earthquake Research in China》 2003年第3期199-205,共7页
Based on Coulomb static stress variation, the stress trigging action of the Mani ( M S 7 9, Nov. 1997) earthquake on the West Kunlun Mountains Pass ( M S 8 1, Nov. 2001) earthquake is researched. Results of different ... Based on Coulomb static stress variation, the stress trigging action of the Mani ( M S 7 9, Nov. 1997) earthquake on the West Kunlun Mountains Pass ( M S 8 1, Nov. 2001) earthquake is researched. Results of different source mechanism resolutions show that a 10 -3 MPa Coulomb stress due to the Mani earthquake was added to the fracture fault of the Kunlun earthquake, and this may shift the broken date to about 10 years earlier, and infer that the stress level in the crust is not low. Comparing the relationship between strong earthquake strength and frequency and earth rotation change, it is shown that the strength’s decrease and the variation period’s shortening of earth rotation are important controlling factors on strong earthquake activity. This great event with M S =8 1 took place probably due to a gradual strengthening background of regional stress field within the Qinghai_Xizang block in the period of acceleration of change of day’s length and stress triggering from the Mani earthquake. 展开更多
关键词 Coulomb stress Stress triggering Earth rotation
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Preparation and characterization of Martian soil simulant NEU Mars-1 被引量:2
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作者 Jin-zhao GUAN Ai-min LIU +2 位作者 Kai-yu XIE Zhong-ning SHI Blanka KUBIKOVA 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2020年第1期212-222,共11页
To develop Martian soil simulant,basalts of the Chahar volcanic group in Wulanchabu,Inner Mongolia,China were selected as the simulant initial materials,which were ground and sorted to a predetermined particle size ra... To develop Martian soil simulant,basalts of the Chahar volcanic group in Wulanchabu,Inner Mongolia,China were selected as the simulant initial materials,which were ground and sorted to a predetermined particle size ratio,and small amounts of magnetite and hematite were added.The main phases of NEU Mars-1 simulant were plagioclase,augite and olivine.The glass transition and crystallization temperatures of NEU Mars-1 were 547.8 and 795.7°C,respectively.The complex dielectric constant,magnetic conductivity(0.99-1.045),and dielectric loss tangent angles(0.0025-0.030)of NEU Mars-1 were all stable in the frequency range of 2-18 GHz.Mossbauer spectroscopy results showed that the mass ratio of Fe2+to Fe3+in the simulant was 77.6:22.4.The NEU Mars-1 Martian soil simulant demonstrated particle size ratio,chemical composition,phase composition,thermal stability,and dielectric property similar to Martian soil,and can be used as the substitute material to extract oxygen and metals with in-situ resource utilization technologies. 展开更多
关键词 Martian soil STIMULANT volcanic rock BASALT in-situ resource utilization
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On the initiation,movement and deposition of a large landslide in Maoxian County,China 被引量:4
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作者 pei xiang-jun guo bin +3 位作者 cui sheng-hua wang dong-po xu qiang li tian-tao 《Journal of Mountain Science》 SCIE CSCD 2018年第6期1319-1330,共12页
At 5 am 24 th June 2017, a catastrophic landslide hit Xinmo Village, Maoxian County, Sichuan Province, China. The slide mass rushed down from an altitude of 3400 m and traveled 2700 m in a high velocity. The 13 millio... At 5 am 24 th June 2017, a catastrophic landslide hit Xinmo Village, Maoxian County, Sichuan Province, China. The slide mass rushed down from an altitude of 3400 m and traveled 2700 m in a high velocity. The 13 million m^3 deposition buried the whole village and caused about 100 deaths. The source area of the landslide is located in a high steep slope, average slope angle is 40o and maximal angle is 65o. The strata are interbedded Triassic Zagunao Formation metamorphic sandstone and slate with the dip slope angle of 45°. Based on high-resolution satellite remote sensing image, UAV image, DEM data, and field investigation, failure mechanism, travel features, and deposit characteristics were analyzed. The results showed that this landslide was influenced by Songpinggou Fault zone. According to the topography before the failure, the landslide is located in the back scarp of an antecedent landslide induced by Diexi Earthquake in 1933. The bedding slope provided potential rupture surface. Historical seismic activities and long-term gravitational deformation caused rock mass accumulated damages. Weathering and precipitation weakened the rock mass and finally induced shearing and tension failure. A huge block detached from the top rock slope, pushed the past landslide deposits in the middle part, rushed out of the slope bottom in a high velocity and buried the Xinmo Village. The rapid movement entrained and brought the soil into the Songping Gully which recoiled with and bounced back from the opposite mountain. 展开更多
关键词 Xinmo landslide Seismic damages Longrunout Failure mechanism Rock fragment
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Genetic Diversity of Cameroon Native Goat Populations Revealed by Caprine Microsatellites 被引量:1
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作者 Meutchieye Felix Wamonje Francis +2 位作者 Ngono Ema Patrick Jolly Djikeng Appolinaire Manjeli Yacouba 《Journal of Agricultural Science and Technology(A)》 2014年第8期706-713,共8页
A total of seventeen caprine microsatellite markers were used on 169 goats to investigate genetic diversity of eight Cameroon native goat populations and to assess genetic differentiation with the East African small g... A total of seventeen caprine microsatellite markers were used on 169 goats to investigate genetic diversity of eight Cameroon native goat populations and to assess genetic differentiation with the East African small goat. All microsatellites showed a high polymorphic content (PIC) of more than 0.5 in almost all ecotypes. These microsatellite markers were useful for native goat ecotypes variability assessment. Expected heterozygosity of all ecotypes was above 0.5, varying from 0.2 to 0.7. Only goats from Eastern rainforest ecotype deviated from Hardy-Weinberg equilibrium test (P 〉 0.001). Although geographic distribution was a good indication of differentiation, there appeared a tendency of genetic exchange between various ecotypes in Cameroon native goats. 展开更多
关键词 Genetic diversity BIODIVERSITY GOAT ECOTYPES breeding microsatellites.
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Danger of GLOFs in the Mountain Areas of Kazakhstan
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作者 Viktor Blagovechshenskiy Vasiliy Kapitsa Nikolay Kasatkin 《Journal of Earth Science and Engineering》 2015年第3期182-187,共6页
The presentation describes the methods and shows the results of GLOFs' danger estimation in lie and Zhetysu Alatau ranges (Kazakhstan). The catalogues of glacial lakes were made following the results of satellite i... The presentation describes the methods and shows the results of GLOFs' danger estimation in lie and Zhetysu Alatau ranges (Kazakhstan). The catalogues of glacial lakes were made following the results of satellite images processing. The catalogue contains the data of 186 glacial lakes in lle Alatau and 577 lakes in Zhetysu Alatau. According to the bathymetric data of 35 glacial lakes the dependences of volume on lake's area for proglacial and moraine lakes were developed and lake's volumes were calculated. There are 32 lakes in Ile Alatau and 110 lakes in Zhetysu Alatau with water volume more than 100,000 m3. The most hazardous lakes have the following characteristics: 1) the lake volume exceeds 100,000 m3, (2) the lake is proglacial, (3) the dam is a young moraine with an ice core, (4) there are sites with the steep of more than 15° spreading for more than 500 m down the valley, and (5) there are important non-protected objects in the mudflows affected area. There are 14 the most hazardous glacial lakes with very high level of GLOF danger: 6 lakes in lie Alatau and 8 lakes in Zhetysu Alatau. 展开更多
关键词 Glacial lakes outburst floods mudflow hazard assessment.
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Development versus conservation: evaluation of landscape structure changes in Dem?novská Valley, Slovakia
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作者 KRTICKA Luděk TOMCíKOVá Ivana RAKYTOVá Iveta 《Journal of Mountain Science》 SCIE CSCD 2018年第6期1153-1170,共18页
This paper presents the changes of landscape structure in the Demanovská Valley which ranks among the most valuable protected areas of Slovakia. The area was selected on the basis of changes associated with the r... This paper presents the changes of landscape structure in the Demanovská Valley which ranks among the most valuable protected areas of Slovakia. The area was selected on the basis of changes associated with the rapidly growing tourism industry and the rise of an important destination in the center of Low Tatras National Park, Slovakia. To document any changes, we visually interpreted data from aerial and satellite images in three periods(1949, 2007 and 2013) and for predicting future changes we used land use planning documentation. Interpreted data were analyzed using overlay analysis and landscape metrics. Results showed extensive changes in the landscape structure mainly connected with the development of tourism infrastructure. We also identified long-term changes whose causes stem from the transformation of society and forest management in the past. The dynamics and extent of these changes may increase in the future. We propose to stop future development of ski slopes and expansion of related infrastructure, to focus on sustainability and environmentally friendly operation of the existing ski resort and to invest a substantial portion of profits to support projects aimed to preserve surrounding lands and wildlife. 展开更多
关键词 Landscape structure changes Landscapemetrics Demanovská Valley Low Tatras NationalPark Tourism infrastructure
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Impacts of the Rising Opportunity Cost of Farm Labor on Agricultural Land Use Structure: Theory and Empirical Evidences 被引量:2
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作者 Tian Yujun Li Xiubin +1 位作者 Ma Guoxia Hao Haiguang 《Chinese Journal of Population,Resources and Environment》 2011年第1期85-90,共6页
Nowadays the rising of opportunity cost of farm labor comes to the forefront of attention in China. In order to understand its impact on agricultural land-use structure, a theoretical framework of household economics ... Nowadays the rising of opportunity cost of farm labor comes to the forefront of attention in China. In order to understand its impact on agricultural land-use structure, a theoretical framework of household economics is formulated drawn on Low's model. Under the theoretical framework, the impact of the rising opportunity cost of on-farm on cropping structure is deduced in theory. And then, using statistic and survey data, taking mountain area of southern Ningxia as an example, the theoretical assumes are verified. The results show that the rise of opportunity cost of farm labor leads to less diversified cropping structure. 展开更多
关键词 opporttmity cost of farm labor agricultural land use structure theoretical analysis empirical study
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Evaluation on the Two Filling Functions for the Recovery of Forest Information in Mountainous Shadows on Landsat ETM + Image 被引量:1
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作者 SHAHTAHMASSEBI Amir reza MOORE Nathan 《Journal of Mountain Science》 SCIE CSCD 2011年第3期414-426,共13页
In general,topographic shadow may reduce performance of forest mapping over mountainous regions in remotely sensed images.In this paper,information in shadow was synthesized by using two filling techniques,namely,roif... In general,topographic shadow may reduce performance of forest mapping over mountainous regions in remotely sensed images.In this paper,information in shadow was synthesized by using two filling techniques,namely,roifill and imfill,in order to improve the accuracy of forest mapping over mountainous regions.These two methods were applied to Landsat Enhanced Thematic Mapper (ETM +) multispectral image from Dong Yang County,Zhejiang Province,China.The performance of these methods was compared with two conventional techniques,including cosine correction and multisource classification.The results showed that by applying filling approaches,average overall accuracy of classification was improved by 14 percent.However,through conventional methods this value increased only by 9 percent.The results also revealed that estimated forest area on the basis of shadow-corrected images by 'roifill' technique was much closer to the survey data compared to traditional algorithms.Apart from this finding,our finding indicated that topographic shadow was an accentuated problem in medium resolution images such as Landsat ETM+ over mountainous regions. 展开更多
关键词 SHADOW Imfill: Roifill: Landsat ETM+
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High precision slope deformation monitoring model based on the GPS/Pseudolites technology in open-pit mine 被引量:26
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作者 WANG Jianpeng, GAO Jingxiang, LIU Chao, WANG Jian School of Environment and Spatial Informatics, China University of Mining & Technology, Xuzhou 221008, China 《Mining Science and Technology》 EI CAS 2010年第1期126-131,137,共7页
As the number and geometric intensity of visual satellites are susceptible to large slopes in open-pit mines, we propose integration of GPS/Pseudolites (PLs) positioning technology which can increase the number of vis... As the number and geometric intensity of visual satellites are susceptible to large slopes in open-pit mines, we propose integration of GPS/Pseudolites (PLs) positioning technology which can increase the number of visible satellites, strengthen the geometric intensity of satellites and provide a precision solution for slope deformation monitoring. However, the un-modeled systematic errors are still the main limiting factors for high precision baseline solution. In order to eliminate the un-modeled systematic error, the Empirical Mode Decomposition (EMD) theory is employed. The multi-scale decomposition and reconstruction architecture are defined here on the basis of the EMD theory and the systematic error mitigation model is demonstrated as well. A standard of the scale selection for the systematic error elimination is given in terms of the mean of the accumulated standardized modes. Thereafter, the scheme of the GPS/PLs baseline solution based on the EMD is suggested. The simulation and experiment results show that the precision factors (DOP) are reduced greatly when PLs is located suitably. The proposed scheme dramatically improves the reliability of ambiguity resolution and the precision of baseline vector after systematic error being eliminated, and provides an effective model for high precision slope deformation monitoring in open-pit mine. 展开更多
关键词 open-pit mine slope deformation PLS EMD
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Omni-Directional Distribution Patterns of Montane Coniferous Forest in the Helan Mountains of China 被引量:5
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作者 PANG Yu ZHANG Bai-ping +3 位作者 ZHAO Fang YAO Yong-hui ZHANG Shuo QI Wen-wen 《Journal of Mountain Science》 SCIE CSCD 2013年第5期724-733,共10页
Slope aspect has significant effect on the development and distribution of montane forest, especially in arid and semiarid regions. This paper, using SPOT5 images and 1:5o,ooo DEM, digitally extracts and analyzes the... Slope aspect has significant effect on the development and distribution of montane forest, especially in arid and semiarid regions. This paper, using SPOT5 images and 1:5o,ooo DEM, digitally extracts and analyzes the spatial information of montane coniferous forest (mainly Qinghai spruce), and thereby explores how the upper and lower limits and the altitudinal range of coniferous forest vary and how the area of coniferous forest is related with annual insolation with all aspects in the Helan Mountains. The results show that: 1) In the eastern flank, the lower limit of coniferous forest is between 1,6oo m and a,ooo m a.s.l., and the upper limit between 2,800 m and 3,ooo m a.s.1.; in the western flank, the lower limit of coniferous forest is between a,ooo m and 2,300 m a.s.l., and the upper limit between 9,80o m and 3,1oo m a.s.1.2) The altitudinal ranges of coniferous forest are 8o6-1,435 m, 438-1,14o m for eastern flank and western flank, respectively. 3) The area of coniferous forest takes on a normal distribution with aspect, and it has a close relationship with annual insolation. This distribution model developed in this paper quantitatively reveals the significant effect of slope aspect on the distribution of coniferous forest in arid and semi-arid land. 展开更多
关键词 Arid region Helan Mountains Qinghaispruce (Picea crassifolia) Aspect effect Coniferousforest Normal distribution
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Spatiotemporal Dynamics of Forest and Mountain Formations in Auras Area, Algeria
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作者 Yassine Beghami Mahdi Kalla +1 位作者 Michel Thinon Hassen Benmessaoud 《Journal of Life Sciences》 2012年第6期663-669,共7页
Contrary to the countries of northern coast, the forest formations on Southern and East coast of the Mediterranean are in regression. With the combined action of the ax, fire and pasture, these ecosystems are subjecte... Contrary to the countries of northern coast, the forest formations on Southern and East coast of the Mediterranean are in regression. With the combined action of the ax, fire and pasture, these ecosystems are subjected to a pressure of permanent degradation. Indeed, the degradation of the forest ecosystems represents one of the most important causes of reduction and erosion of the biodiversity in the world. The massif of Aur6s is located in the North-East of Algeria. The analysis of the spatiotemporal dynamics of this vulnerable vegetation is not approached yet. This study proposes a focus on the analysis of the dynamics of this vegetation and to study the factors of its degradation. For that, a methodological approach of diachronic follow-up between two dates was adopted by using any kind of old information sources (archives, aerial photographs, topographic maps) and recent (Images satellite of American Landsat and data of land). The results reveal a degradation of vegetable cover thus expressing a very thorough reduction of the formations forest replaced by herbaceous formations very sensitive and threatened by the overgrazing. 展开更多
关键词 Aures diachronic analysis cedar forest formations remote sensing
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Analysis on the Development of Lushan (Xingzi) Hot Spring Health Tourism Products from the Perspective of Product Integrated Marketing
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作者 Fenglian Zou Zhibin Hu 《International English Education Research》 2014年第9期88-90,共3页
Through the development of more than 60 years, the hot spring tourism industry in China will confront with a situation of "innovative competition, standard development, and secondary upgrade". In this paper, from th... Through the development of more than 60 years, the hot spring tourism industry in China will confront with a situation of "innovative competition, standard development, and secondary upgrade". In this paper, from the perspective of product integrated marketing theory, by taking Lushan (Xingzi) hot spring as an example, the authors carry out an analysis on some problems in the development of Xingzi hot spring tourism products, propose the framework and model of the integrated development of hot spring health tourism products, and also provide some suggestions for the design of Xingzi hot spring health tourism routes. 展开更多
关键词 Product Integration Health Preservation by Hot Spring Route Design
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