Despite challenges in many river
basins, overall the planet has
enough water to meet the full range
of peoples’ and ecosystems’ needs
for the foreseeable future, but
equity will only be achieved through
judicious and creative management.
Despite challenges in many river
basins, overall the planet has
enough water to meet the full range
of peoples’ and ecosystems’ needs
for the foreseeable future, but
equity will only be achieved through
judicious and creative management.
There is consensus that pastoral mobility is beneficial for both pastoralists and the environment. However, rapid change arising from multiple factors, including landscape fragmentation, sedentarization, and demographic drivers might affect the effectiveness of this pastoral coping strategy in times of drought. We investigate livestock mortality rates following the 2005 drought in four areas in Maasailand: the Maasai Mara, the Kitengela plains, the Amboseli, and the Simanjiro plains.
More than two billion people depend on the world’s arid and semi-arid lands. Preventing land degradation and supporting sustainable development in drylands has major implications for food security, climate change and human settlement. This report, issued at the beginning of the United Nations Decade for Deserts and the Fight against Desertification, sets out a shared strategy by UN agencies to rise to the challenge of addressing the special needs of these vital zones.
Asia and the Pacific, for the purposes of this book, encompasses a vast territory extending from Mongolia in the north to New Zealand in the south; from the Cook Islands in the east to Kuwait in the west (Map 1). The environmental diversity of Asia and the Pacific is therefore vast, and is contrasted by the region’s coldest and hottest deserts, verdant tropical rainforests, extensive steppe, desert steppe, grassland and rangelands, mountains and plains.
Land is defined as a system engaged in generating biological productivity. It is the earth’s infrastructure for life. The rate and quality of production generated from the land depends on its major components, soil and its fertility. Soil organic matter, derived from the vegetation supported by a particular soil, is the major component that controls soil fertility.
La tierra se define como un sistema bioproductivo. Es la infraestructura terrestre para la vida. La tasa y la calidad de la producción generada por la tierra dependen de sus principales componentes, de los suelos y de su fertilidad. La materia orgánica del suelo, derivada de la vegetación que crece en un suelo determinado, es el principal componente que controla la fertilidad de éste.
Les terres3 peutvent se définir comme un système destiné à générer de la productivité biologique. C’est l’infrastructure naturelle qui supporte la vie sur la planète. La quantité et la qualité de cette production dépendent du principal composant de la terre : le sol et sa fertilité. La matière organique du sol, qui provient de la végétation portée par ce dernier, est le principal composant influençant la fertilité du sol.
Land is defined as a system engaged in generating biological productivity. It is the earth’s infrastructure for life. The rate and quality of production generated from the land depends on its major components, soil and its fertility. Soil organic matter, derived from the vegetation supported by a particular soil, is the major component that controls soil fertility.
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