Analysis on spatial distribution characteristics and geographical factors of Chinese National Geoparks

This study presents the Pearson correlation analyses of the various factors influencing the Chinese National Geoparks. The aim of this contribution is to offer insights on the Chinese National Geoparks by describing its relations with geoheritage and their intrinsic linkages with geological, climatic controls. The results suggest that: 1) Geomorphologic landscape and palaeontology National Geoparks contribute to 81.65% of Chinese National Geoparks. 2) The NNI of geoparks is 0.97 and it belongs to causal distributional patternwhose regional distributional characteristics may be best characterized as’ dispersion in overall and aggregation in local’. 3) Spatial distribution of National Geoparks is wide. The geographic imbalance in their distribution across regions and types of National Geoparks is obvious, with 13 clustered belts, including Tianshan-Altaishan Mountain, Lesser Higgnan-Changbai, Western Bohai Sea, Taihangshan Mountain, Shandong, Qilianshan-Qinling Mountain, Annulus Tibetan Plateau, Dabashan Mountain, Dabieshan Mountain, Chongqing-Western Hunan, Nanling Mountain, Wuyishan Mountain, Southeastern Coastal, of which the National Geoparks number is 180, accounting for 82.57%. 4) Spatial distribution of National Geoparks coincide with latitudinal tectonic zone and longitude tectonic zone of geological structure features, which is consistent with the areas around the Pacific Rim of volcanic tectonic zones. The coupling relationships are obvious between the spatial distributional pattern and the natural and geological conditions.     

Popular geographies and geographical imaginations: contemporary English-language geographical magazines

English-language geographical magazines present very different geographical imaginations to their readers than those portrayed by academic geographers, with whom the editors and publishers of those magazines have very little contact. There is a mutual lack of appreciation—which could have substantial consequences for the academic discipline. To increase academic geographers’ appreciation of the popular geographies being portrayed, the contents of recent volumes of three magazines—National Geographic, Geographical, and New Zealand Geographic—are distilled, with their major themes identified. One clear conclusion is that there is virtually no contact between the two imaginations: popular geographical magazines almost entirely ignore the work of academic geographers.     

基于地理探测器的青藏高原多年冻土分布影响因子分析

多年冻土的分布会受到局地地质、地形地貌和地表覆被等因素的影响.为探究各因子对多年冻土分布的影响强弱,选择青藏高原五个典型多年冻土区为研究区,基于MODIS和SRTM DEM数据提取研究区内2003—2012年平均地表温度、NDVI、地表反照率、积雪日数和坡度、坡向等因子,并采用地理探测器模型研究了各因子对研究区多年冻土...     

IGU commission geographical education

The International Geographical Union Reports

IGU commission geographical education     

Fractals and the accuracy of geographical measures

The problems of estimating line length, area, and point characteristics in the earth sciences have generated substantial but independent literatures. All three problems are of increasing concern given the current interest in digital capture, processing, and the storage of geographically referenced data. In the case of qualitative maps, all three are shown to be related to Mandelbrot's fractional dimension D (Mandelbrot, 1977) which allows the dependence of each on sampling density to be predicted. The general results are confirmed by simulation on surfaces of constant D. They also imply that certain improvements can be made in a number of previously proposed methods.     

Economic significance of colonial invasions in Khejuri-Hijli coastal sector of Purba Medinipur district,West Bengal: A geographical review

Khejuri- Hijili coastal area, now extends over the Khejuri police station, is situated in the southeastern part of the district of Purba Medinipur of West Bengal, on the western bank of the Hugli river. Between 21°47'42"N-22°4'N latitudes and 87°45'4"E-88°18"E longitudes the area covers about 267.97 sq. km. At the confluence of the rivers Bhagirathi-Hugli and the Bay of Bengal, Hijili emerged as an island from the estuarine surroundings around 1400-1500 A.D. afterward the island became covered with natural mangroves. Gradually it became the abode of fishermen. To gather some primary data, household survey by different questionnaire, topographic survey was done. Secondary data are mainly produced by assembling historical charts, maps, literatures for the specified work of the area concerned. Historical records including documents, survey notes, maps and photographs provided valuable information about the study area. Remains of early structures, monuments, and office buildings have been vigilantly watched and written reports and research articles have been carefully studied for sequencing the socio-economic history of the area. Later on accuracy assessment was performed by comparing two sources of information: classification of map derived from old records and maps and the ground truth information. The output obtained by performing the above steps includes land use and other maps and charts. These outputs were then analyzed to detect the historical significance of Khejuri-Hijili sector of the Hugli estuary and its sequential deterioration. These changes in the study area that were identified from classified maps, charts and diagram were tabulated.     

IGU commission on geographical education

IGU-Reports

IGU commission on geographical education     

IGU commission on geographical education

IGU Reports

IGU commission on geographical educationNewsletter 16 (abridged by GeoJournal)