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On China's geoenvironment for countrywide development

Journal of Geographical Sciences 1999年第4期9卷 355-361页

作者： YANG Wu-yang, FAN Fei(Department of Urban and Environment Sciences, Peking University, Beijing 100871, People’sRepublic of China)

Entry word 'geo' means the relations between the earty surface layer and its *** existence and development of humanity are in progress on certain spatial places and duringspecific time series. It is not only philosophic truth but also objective reality. People always define theinteraction between human society and natural world as man-land relationship. which contains eitherthe tangible habitat of human being or the intangible bearing got involved in it. So far asgeoenvironment is an enlarged geographic surroundings, from macroscopic cosmos to elementaryparticle without exception. The purpose of thes paper is to expound the relationship for human beingwith its factors affiliated on global surface. The authors firmly believe that humankind possesses threeoverlapping levels of environment on earth enclosure including physical (natural), economic(artificial) and humanistic (ideological) spheres.

关键词： geoenvironment Sino-culture landscape, pole-axis system. T-shaped Y-shaped YinYang (negative-positive) Wuxing (five elements)

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Regulation of Brahmaputra-Jamuna River around Jamuna Bridge Site, Bangladesh: geoenvironmental Impacts

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Journal of Water Resource and Protection 2010年第2期2卷 123-130页

作者： Mohammad A. H. Bhuiyan M. A. Rakib Kumamoto Takashi M. Julleh Jalalur Rahman Shigeyuki Suzuki 不详

This study is conducted to evaluate the ongoing geoenvironmental impacts of Brahmaputra-Jamuna (BJ) River around the Jamuna Bridge (JB) site which was modified prior to the construction of Jamuna Bridge in 1996. Remote sensing and GIS techniques are adopted to evaluate the temporal and spatial geohazards. This study shows that the intensity of channel shifting has been increased due to regulation of river width at Sira-jganj–Bhuiyapur section from 11 km to 4.8 km. Planform analysis shows that the major channel has been stressed to migrate (315 m/year) eastwards. The phenomena of channel changes are predicted to be the con-sequences of interaction of water flow, sedimentation and channel corridor. The erosion and deposition have complicated variations over time and space due to the abrupt changes of flow and sedimentation around the regulated section. Due to width reduction, the bridge site in the braided system acts as sluice gate which can not accommodate the entire flow to release downstream properly. The helical flow developed with the inter-action of guide bund creates local scours and helps to shift the river bank eastward.

关键词： Brahmaputra-Jamuna River geoenvironment Geohazard GIS Remote Sensing River Regulation

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Data Exploration and Reconnaissance to Identify Ocean Phenomena: A Guide for In Situ Data Collection

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Journal of Water Resource and Protection 2016年第10期8卷 929-943页

作者： Nadine Nassif Lena Abou Jaoude Mhamad El Hage Cordula A. Robinson Affiliat Department Environmental and Natural Resources Department Lebanese University Dekwaneh Lebanon Department of Environment and Natural Resources Lebanese University Dekwaneh Lebanon Department of Civil Engineering and Department of Geography (GISRS Lab.) Lebanese University Tripoli Lebanon College of Professional Studies Northeastern University Boston MA USA

Marine pollution is a serious geoenvironmental problem affecting the Lebanese coast. It mainly affects the coastal zone adjacent to areas of dense population. To detect the sources of pollution along this zone, as well as to identify their characteristics, remote sensing data is used. Landsat 8 Operational Land Imager (OLI) satellite images, which have medium spatial resolution, are analyzed using ENVI 5.2 and ArcGIS 10.3.1 geospatial software for the years of 2014 and 2015. Different routines are applied to reveal anomalous features with the goal being to discriminate polluted water in the marine environment. Results showed anomalies in Akkar region. This might be due to the presence of basalts rocks, and geothermal heating, or the pollution of Oustowan river that flows into the sea. The results also showed that during the dry season, there is low movement of water causing a least extension of the anomalies. In contrary, during the wet season, rivers had an intense flow into the sea which caused an intense water movement and wide extension of anomalies on the coast. Permanently polluted coastal sites are evident in Tripoli, Kalamoun, Chekka, Batroun, Amchit, Jbeil, Jounieh, Nahr Beirut and Ouzai with the most presumed polluted months being in 2014 during April and November and in 2015 in April. The least extended pollution is during July 2014 and 2015. The length and width of each anomaly at each site shows that during the year of 2015;most of the anomalies are larger than in 2014.

关键词： geoenvironment Remote Sensing Landsat Sea Pollution

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