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Subfossil chironomids are regarded as a useful biological proxy for palaeoenvironmental research, but picking chironomid head capsules from aquatic sediments is extremely time-consuming.
Aiming at the deficiency of the existing DOM and DEM production modes and the networking and automation requirements of the information mapping production system, a method of network-based simultaneou...
The SCS-CN method is an event-based model developed by the USDA Soil Conservation Service (SCS). The Curve Number (CN) is a land-cover index for a given land and soil type to determine the amount ...
Blue colored topaz is the most commercialized gemstone worldwide at present. Very rare in nature, most of thesetopazes are treated by laboratory irradiation with gamma ray, neutron or electron, or in ...
Using geographic information system (GIS) techniques and the newest seasonal and annual average precipitation data of 679 meteorological stations from 1971 to 2000, the multiple regression...
Plant diversity is used as an indicator of the well-being of vegetation and ecological systems. Human activities and global change drive vegetation change in composition and competition of...
Using the method of Constanza R, the annual value of ecosystem services of Macao was 3.302×106 US dollars in 1983, equivalent to 26.5250×106 MOP, when using the currently monetary valuatio...
Abstract: This paper summarizes principles and measures of comprehensive division of mountainous areas, as well as clarifies meaning, structure, function and path established for the map a...

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