Drainage of agricultural land is one of the most critical water management tools for the sustainability of productive cropping systems, as frequently this sustainability is extremely dependent on the control of waterlogging and soil salinization in the rootzone of most crops. On some agricultural lands, the natural drainage is sufficient to maintain high productivity. However, many others require improvements in surface and subsurface drainage in order to optimize land productivity, while maintaining the quality of soil resources.
Résultats de la recherche
Showing items 1 through 9 of 67.-
Library ResourceArticles et Livresdécembre, 2007Égypte, États-Unis d'Amérique, Espagne, Iraq, Malaisie, Ouzbékistan, Royaume-Uni, Pérou, Iran, Argentine, Inde, Kazakhstan, Pakistan, Mexique, Pays-Bas
-
Library ResourceArticles et Livresdécembre, 2007France, Bangladesh, Belize, Samoa, Chili, Chine, Sri Lanka, Canada, Iran, Sierra Leone, Panama, Mozambique, Philippines, Kiribati, Madagascar, Myanmar, Cambodge, Maldives, Kenya
Il y a plusieurs décennies, les efforts des administrations consistaient essentiellement à développer la pêche et l’aquaculture et à veiller à ce que la production et la consommation augmentent. Lorsque, dans les années 80, de nombreuses ressources ont été exploitées complètement ou à l’excès, les décideurs ont commencé à être attentifs à la gestion des pêches, outre le développement de l’aquaculture. L’aquaculture continue à progresser, tandis que la pêche – pour l’ensemble du monde – semble plafonner.
-
Library ResourceArticles et Livresdécembre, 2007Finlande, Italie
This guide is written for people who work in land administration and all those with an interest in land, land tenure and their governance. Although much has been written about the importance of good governance in achieving development goals, there is comparatively little material on good governance in land tenure and administration. Failings in governance have adverse consequences for society as a whole. By contrast, good governance can help achieve economic development and the reduction of poverty. Good governance matters.
-
Library ResourceRapports et recherchesdécembre, 2007Bangladesh, Suisse, Chine, Indonésie, Australie, Canada, Pakistan, Thaïlande, Japon, Malaisie, Italie, Brunéi Darussalam, Cambodge, Inde, Bahreïn, Barbade, Émirats arabes unis, Asie
The main aim of this study is to facilitat e access to comprehensive and comparable information on the current and past extent of mangroves in the 124 countries and areas where they are known to exist, highlighting information gaps and providing updated information that may serve as a tool for mangrove managers and policy- and decision-makers worldwide.
-
Library ResourceRapports et recherchesdécembre, 2007États-Unis d'Amérique, Chili, Italie, Indonésie, Canada, Gabon, Cameroun, Brésil
FAO has been coordinating global forest resources assessments every five to ten years since 1946 (FAO, 2006), with the objective to provide a periodic global and uniform picture of existing forests, derived trends and statistics. Especially FAO’s periodically reported deforestation rates enjoy a high degree of public attention and are widely cited in literature.
-
Library ResourceRapports et recherchesdécembre, 2007Italie
Human rights principles and language are being used to support resource access claims as rights-based approaches empower individuals and groups to gain or maintain access to natural resources. This paper addresses the right to food and access to natural resources in regard to Right to Food Guidelines Provisions, Violations and State Obligations.
-
Library ResourceRapports et recherchesdécembre, 2007Australie, Thaïlande, Congo, Afrique du Sud, Brésil, Asie
Light textured sandy soils are ubiquitous throughout the tropics and constitute an important soil resource on which millions are dependent for their livelihoods. Spanning a range of rainfall regimes from the arid to the humid tropics, they present unique sustainability and environmental challenges to resource managers. Physical, chemical and biological characteristics of sandy soils often act as a severe limitation in crop production.
-
Library ResourceArticles et Livresdécembre, 2007Bangladesh, États-Unis d'Amérique, Népal, Gambie, Chine, Indonésie, Congo, Éthiopie, République de Corée, Colombie, Thaïlande, Rwanda, Italie, Philippines, Malaisie, Japon, Myanmar, Cambodge, Inde, Ouganda, Brésil, Kenya
-
Library ResourceArticles et Livresdécembre, 2007France, Bangladesh, États-Unis d'Amérique, Chine, Indonésie, Australie, Iran, République de Corée, Thaïlande, Pakistan, Philippines, Turquie, Japon, Tunisie, Inde, Mexique, Mongolie, Asie
Water is essential for life and plays a key role in achieving the Millennium Development Goals. As the population continues to grow and the economy develops, competition for water uses between different users has intensified and induced excessive strain on the environment. Climate change and water pollution further aggravate the situation. Today, 2.8 billion people are affected by some form of water scarcity, and the number of regions affected by water shortages is on the rise.
-
Library ResourceRapports et recherchesdécembre, 2007Dominique, Burkina Faso, Honduras, El Salvador, Chili, Guatemala, Pérou, Cuba, Venezuela, Malawi, Costa Rica, Nicaragua, Ouganda, Madagascar, Lesotho, Inde, Sénégal, Brésil, Afrique
A humanidade tem sido testemunha e participante nas múltiplas mudanças pelas quais a agricultura passou no decorrer dos séculos. Desde os primórdios desta antiga prática, o cultivo tem sido a espinha dorsal do desenvolvimento econômico de muitas sociedades e a principal fonte de preservação e evolução da vida. Nas civilizações pré-históricas e agrárias mais antigas, a agricultura não somente era uma fonte de alimento e de matérias-primas, mas também representava uma fonte de expressão da ordem inata da natureza.
Rechercher dans la bibliothèque foncière
Grâce à notre moteur de recherche robuste, vous pouvez rechercher n'importe quel document parmi les plus de 64 800 ressources hautement conservées dans la bibliothèque du foncier.
Si vous souhaitez avoir un aperçu de ce qui est possible, n'hésitez pas à consulter le guide de recherche.