1 20 2 https://namibiadigitalrepository.com/files/original/c68ca20547202311b1f7f66cb2d2520e.pdf 0c85e78a71dbc621b8044bc13d894b79 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Kyoto University Text A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource ENVIRONMENTAL CHANGES IN RELATION TO TREE DEATH ALONG THE KUISEB RIVER IN THE NAMIB DESERT Description An account of the resource The Namib Desert is located along the western coast of Namibia and is affected by the cold Benguela Current. Although forest is distributed along the Kuiseb River in the Namib Desert, many trees are almost dead in some areas. The aim of this research was to clarify the relationship between environmental changes and tree death. The results of the survey are summarized as follows: (1) Many dead trees are located on the riverbanks made of dune sand, which are about 1 m high. (2) Dead trees are located in transitional areas where a northward protrusion of the southern shore is followed by a southward protrusion of the northern shore along the course of the river, in proximity to a sand dune. (3) Floods have eroded the noses of advancing sand dunes of the upper stream and have caused tree death by depositing sand. (4) The date of tree death has been estimated between the late 1970s and the early 1980s by 14C dating. (5) Flood days numbered 33 per year from 1962 to 1975 and 2.7 from 1976 to 1985. The remaining thick sand layer, deposited by the last flood, may be the cause of tree death, given that there was drastic decrease in fl oods since 1976. (6) Tree death has greatly affected people's lives along the Kuiseb River because they depend on riverside forests as a source of shade, shelter, fuel, and food for humans and livestock. Creator An entity primarily responsible for making the resource Kazuharu MIZUNO Publisher An entity responsible for making the resource available African study monographs. Supplementary issue (2005), 30: 27-41 Format The file format, physical medium, or dimensions of the resource PDF Date A point or period of time associated with an event in the lifecycle of the resource 2005 Language A language of the resource English Source A related resource from which the described resource is derived http://repository.kulib.kyoto-u.ac.jp/dspace/handle/2433/68463 Flood decrease Humans Kazuharu MIZUNO Kuiseb River Namib Desert Sand deposits Tree death https://namibiadigitalrepository.com/files/original/6d8648ff387f59dd97aff16305e7b1ab.pdf 2c1b080ba073a15d0ccb518a62104c80 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Kyoto University Text A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Environmental Change and Vegetation Succession along an Ephemeral River: The Kuiseb in the Namib Desert Description An account of the resource Forests line the course of the Kuiseb River, an ephemeral river in the Namib Desert, and several areas of these forests are characterized by high concentrations of tree death (Mizuno, 2005; Mizuno & Yamagata, 2005). We sought to clarify the relationship between recent environmental changes and such tree deaths in the region. In November 2007, we examined the roots of a seedling of Acacia erioloba that was germinated by rainfall beginning in January 2006. The Acacia erioloba had grown to a height of 10cm and its roots to over 230cm, within two years. In the sapling (seedling) stage, Acacia erioloba extends its main roots deeply until it reaches a moist, fine-grained soil layer (sandy silt) and can absorb water through lateral roots. When it reaches the stage at which the water supply from the moist, fine-grained soil layer is insufficient for its growing size, the tree extends innumerable lateral roots within a 50cm depth from the land surface, where they absorb water that has been transported to a shallow depth by fog and other sources. Acacia erioloba dies when its lateral roots are unable to absorb water. Until the mid-1970s, successive floods repeatedly deposited fine-grained materials (e.g., sandy silt) that create water-bearing sediments for the growth of Acacia erioloba, and the trees died only rarely. However, from 1980 to 1985 these materials became increasingly scarce due to the decreasing occurrence of flooding, and consequently many trees died. It is reasonable to infer that the trees died because fine sediments were no longer being regularly deposited, and because of the drawdown of the groundwater level, both of which are making it difficult for the shallow roots of the trees to absorb the water necessary to survive. Creator An entity primarily responsible for making the resource Kazuharu MIZUNO Publisher An entity responsible for making the resource available African study monographs. Supplementary issue (2010), 40: 3-18 Format The file format, physical medium, or dimensions of the resource PDF Date A point or period of time associated with an event in the lifecycle of the resource 2010 Language A language of the resource English Source A related resource from which the described resource is derived http://repository.kulib.kyoto-u.ac.jp/dspace/handle/2433/96301 Environmental change Flooding Kazuharu MIZUNO Sand dune Tree death Vegetation succession