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Ecosystem services value assessment is currently the research hotspot in ecology, ecological economics etc, which can provide theoretical and decision-making basis for regional ecological environment improvement. Based on the data of LUCC (land use and cover change) from 1989 to 2000 and ecosystem services value per unit area in Loess Plateau, changes of ecosystem services value in Huangfuchuan basin...
Callus culture of Elaeagnus angustifolia was established with the objective to produce proanthocyanidins. The effects of different conditions on the callus growth and the production of proanthocyanidins were researched. The leaf tissue part of Elaeagnus angustifolia was optimum explant of callus induction. The best callus growth and the highest proanthocyanidins production was obtained under the culture...
In this paper, we took Elaeagnus angustifolia as material. The paper studied characteristics of seasonal and spatial variations of proanthocyanidins content. There was an apparent difference in proanthocyanidins content of the leave from May to October, the maximim content of proanthocyanidins in October was 34.36 mgldrg-1 DW, while proanthocyanidins content in July was only 17.16 mgldrg-1 DW. Content...
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