Last edited by Goltim
Sunday, July 19, 2020 | History

3 edition of Regeneration of Woody Legumes in Sahel (Aau Reports, 28) found in the catalog.

Regeneration of Woody Legumes in Sahel (Aau Reports, 28)

by Knud Tybirk

  • 89 Want to read
  • 32 Currently reading

Published by Aarhus University Press .
Written in English

    Subjects:
  • Botany & plant sciences,
  • The Sahara,
  • Life Sciences - Botany,
  • Science,
  • Science/Mathematics

  • The Physical Object
    FormatPaperback
    Number of Pages81
    ID Numbers
    Open LibraryOL13427111M
    ISBN 108787600358
    ISBN 109788787600354

    Stand structure, diversity and regeneration status of woody species were investigated in open and exclosed dry woodland sites in Island Safari, Shorobe and Xobe, northeastern Botswana. A total of , and quadrats, measuring 20 × 20 m each, were laid down along parallel line transects in the three sites, respectively, to collect data. The combined effects of climate change and human pressure have led to the progressive degradation of natural resources in semi-arid regions. Woody taxa in these regions play an important role in the functioning and services provided by semi-arid savannah by serving as forage for both domestic and non-domestic grazers. Maintaining the functioning of semi-arid savannas thus requires.

    Land modification, however, is not always negative. Across West Africa, many examples of positive land modification, such as the regeneration of woody cover, the increase of biodiversity on cropland, or the use of soil and water conservation practices to improve cropland productivity, can be cited (see examples below, and cases of land. Legumes, broadly defined by their unusual flower structure, podded fruit, and the ability of 88% of the species examined to date to form nodules with rhizobia ([de Faria et al., ][1]), are second only to the Graminiae in their importance to humans. The to genera to 19,

      Sahara Sahel Foods, managed by Josef and his wife, Renate, draws on Arne’s work to attempt something grandiose: undo centuries of food norms imposed by Arab and European colonizers. Vegetation changes, degradation and re-greening in the Sahel have long been researched and discussed (e.g, [5,8,9,10]) and studies agree that woody vegetation structure plays a decisive role as an indicator for ecosystem addition, trees and shrubs are fundamental for people’s daily life [], particularly for food and mostly fodder in a short lasting herbaceous cover.


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Regeneration of Woody Legumes in Sahel (Aau Reports, 28) by Knud Tybirk Download PDF EPUB FB2

Additional Physical Format: Online version: Tybirk, K. (Knud). Regeneration of woody legumes in Sahel. Aarhus, Denmark: Botanical Institute, Aarhus University,   Buy Regeneration of Woody Legumes in Sahel (AAU REPORTS) on FREE SHIPPING on qualified orders Regeneration of Woody Legumes in Sahel (AAU REPORTS): TYBIRK, Knud: : BooksCited by: Discover Book Depository's huge selection of Knud Tybirk books online.

Free delivery worldwide on over 20 million titles. We use cookies to give you the best possible experience. Regeneration of Woody Legumes in Sahel. Knud Tybirk. 31 Dec Paperback. US$ Add to basket. Regeneration DES Legumineuses Ligneuses Du Sahel.

Knud Tybirk. Sustainable Development in the Sahel by Agnete Jorgensen,available at Book Depository with free delivery worldwide. We use cookies to give you the best possible experience.

Regeneration of Woody Legumes in Sahel. Knud Tybirk. 31 Dec Paperback. US$ Add to basket. Neotropical Montane Forests. Regeneration of Woody Legumes in Sahel. Bogen behandler i 25 artikler Sahel-områdets flora, vegetation og biodiversitet. Hovedemnerne er: Flora, herbarier og botaniske haver; Diversitet 98,00 kr.

Nyhedsbrev. Tilmeld dig nyhedsbrevet fra Aarhus Universitetsforlag, så holder vi dig orientereret om nye bøger, aktiviteter og gode tilbud.

Woody Vegetation Die off and Regeneration in Response to Rainfall Variability in the West African Sahel Article (PDF Available) in Remote Sensing 9(1) January with Reads. Regeneration of Woody Legumes in Sahel (AAU Reports) by Knud Tybirk.

AU $ Free shipping. If you adore nice colorful cartoons, then you definitely need to buy Woody Woodpecker Coloring Book. You will be offered high-quality illustrations in black and. The use of farmer-managed natural regeneration (FMNR) has enabled a major “regreening” to take place in the Sahel in recent decades.

In southern Niger alone, following two decades of drought and famine in the s and s with massive losses of crops and livestock, human outmigration and mortality, over 5 million hectares of farmlands. Woody legumes have also been successful in drier tropical environments.

Legumes in late seral stages and woody legumes in general are notably absent in temperate regions. Crews went on to cite dry tropical thorn-scrub communities of Mexico, Africa and Australia as examples of his second point, including members of the genus Acacia.

While noting. The objectives of this study were to determine the composition, density and spatial distribution of the soil seed bank of woody species, as well as their regeneration pattern in two different land use systems, controlled (ranch) and open grazing, in an Acacia woodland of the Rift Valley in Ethiopia.

We also compared the species composition of the soil seed bank and the above-ground. The Great Green Wall of Africa (GGW) is a pan-African initiative to combat desertification in the Sahara Desert and the Sahel. Originally conceived as a massive tree plantation crossing the African continent from west to east, the GGW has evolved into a set of restoration projects aimed at environmental and human well-being.

Farmer-managed natural regeneration (FMNR) is a low-cost, sustainable land restoration technique used to combat poverty and hunger amongst poor subsistence farmers in developing countries by increasing food and timber production, and resilience to climate extremes.

It involves the systematic regeneration and management of trees and shrubs from tree stumps, roots and seeds. Regeneration of Woody Legumes in Sahel.

AAU Report Aarhus: Aarhus University Press. Umarani R, Jerlin R, Tilak M. Ecological adaptations of seeds governing forest regeneration.

Ecology, Environment and Conservation 21 (Suppl.) SS van der Valk AG, Pederson RL. Seed banks and the management and restoration of natural. Tree effect on natural regeneration of ligneous vegetation in northern Senegal (West Africa) Webbia: Vol.

50, No. 2, pp. Babile Elephant Sanctuary (BES), in the semi-arid part of eastern Ethiopia, has long been known for comprising one of the globally threatened, ecologically isolated and possibly distinctive subsp.

of elephant population (Loxodonta Africana orleansi). As this review describe a total 55 plant species composed of 37 genera and 24 families were identified.

Tybrik K () Regeneration of woody legumes in Sahel. Aarhus. University Press (DK). wisdom and inspiration continue to permeate the entire book.

This edition, pages in length. Regeneration of Woody Legumes in Sahel. Aarhus University Press, Aarhus, 81 pp. Google Scholar Veasey E.A. and Teixeira de Freitas J.C. Breaking seed dormancy in Sesbania sesban, S. rostrata and S. virgata. Seed Sci.

Technol. – Google Scholar. The Brazilian caatinga is a low and dry forest in the full sense of the term, between 2 and 5 m high, continuous and often dense, (with a 90 percent tree and shrub cover in the semi-arid zone of the three north-eastern states (Pernambouc, Paraôba and Alagoas) with sparse grass cover and dominant woody legumes.

Stand structure, diversity and regeneration status of woody species were investigated in open and exclosed dry woodland sites in Island Safari, Shorobe and Xobe, _disibledevent="font-family:Verdana, Helvetica, Arial;white-space:normal;background-color:#FFFFFF;">&#, respectively.

The five densest species were Colophospermum mopane, Dichrostachys cinerea, Acacia tortilis, Philenoptera. At all locations analysed in the different countries, the local population perceives a decrease or even the disappearance of woody species. For a single location 4 to 59 different woody species were mentioned.

In total, 88 species were named as having disappeared or as decreasing, whereas only 12 species were reported as increasing or as new. Farmed parklands in savanna regions of W. Africa comprise scattered, well-grown trees, often in a regular pattern, on cultivated or recently fallowed fields. Trees are associated with the agricultural environment, have specific uses, and are mostly multipurpose species.

A distinction can be made between 'selected' parkland - in which trees are retained from the original vegetation - and. The study on distribution, abundance and population structure of four indigenous threatened tree species in the Arba Minch natural forest, southern Ethiopia.

The objective of this study was to assess the use of this species by local communities and its current population structure and status in its natural habitat in southern Ethiopia where it is poorly known.Ina workshop was held in Toubacouta, Senegal, to discuss the future of biodiversity in the Sahel and the effect of biodiversity loss on the flora and vegetation.

The main themes were floral diversity, ecology, vegetation analysis, natural regeneration, and reforestation. Information is provided on the history and present state of the botanical gardens and herbaria of West and Central.