Natural vegetation in Hubei Province: history, distribution pattern, and vegetation types
نویسندگان
چکیده
منابع مشابه
Natural radioactivity in Indian vegetation samples
Background: Vegetation (food stuff) is grown in soil that contains many radioactive elements such as 238U (uranium), 232Th (thorium) and 40K (potassium), which may get deposited either due to radioactive fallout or/and by absorption from the soil and can pose serious health hazards. Materials and Methods: Natural radioactivity, radiological hazards and annual effective dose assessment was carri...
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The purpose of this paper is to present and exploit fundamental information, such as semantic meanings and geographical features, of phytotoponyms (a type of toponym that includes plant names) in Western Hubei (China). Long-term vegetation degradation is also estimated. Toponym data for this study were obtained from the place names database of Hubei Province at the Civil Affairs Department of H...
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In this paper, we examine possible sources of hierarchical (nested) structure in vegetation data. We then use the Minimum Message length principle to provide a rational means of comparing hierarchical and non-hierarchical clustering. The results indicate that, with the data used, a hierarchical solution was not as efficient as a nonhierarchical one. However, the hierarchical solution seems to p...
متن کاملVegetation history of Elk Lake
A pollen record from Elk Lake reveals the character and timing of major vegetation changes in northwestern Minnesota for the past 11.6 ka, the past 10.4 ka of which are recorded by varves. Fossil pollen spectra are compared with modern pollen data to identify the closest analogues and thereby to infer past climatic changes. The late glacial Picea assemblage (ca. 11,638-10,000 varve yr) lacks an...
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ژورنال
عنوان ژورنال: SCIENTIA SINICA Vitae
سال: 2020
ISSN: 1674-7232
DOI: 10.1360/ssv-2020-0198