The hoe—the sound of the word is sweet...the hoe makes everything prosper, the hoe makes everything flourish. The hoe is good barley...the hoe is brick moulds, the hoe has made people exist. It is the hoe that is the strength of young manhood. The hoe and the basket are the tools for building cities. It builds the right kind of house, it cultivates the right kind of fields. It is you, hoe, that...

Land-use change to meet 21st-century demands for food, fuel, and fiber will depend on many interactive factors, including global policies limiting anthropogenic climate change and realized improvements in agricultural productivity. Climate-change mitigation policies will alter the decision-making environment for land management, and changes in agricultural productivity will influence cultivated...

Ecological modeling is a powerful tool which can be used to synthesize information on the dynamic processes which occur in ecosystems (1). Models of radionuclide transport in forests were first constructed in the mid1960's, when the consequences of global fallout from nuclear weapons tests and waste disposal in the environment were of great concern. Such models were developed based on site-spec...

Tropical peat swamp lands in the Southeast Asia which store tremendous large amount of carbon in their peat layer and abundant biodiversity are now endangered by human activities such as deforestation, forest fires, land development and urbanization. To earlier start a better environmental policy for conservation of nature of the tropical peat swamp area is one of the preferential global issues...

storage (e.g., Wayburn et al. 2000 and Perez-Garcia et al. 2004). Urban forests also retain some capacity to store carbon in shade trees and associated landscaping and play an important role in conserving energy in home and business heating and cooling (McPherson and Simpson 1999, Nowak and Crane 2002). Alig (2003) suggests that a mixture of forest-based greenhouse gas reduction strategies nati...

Jack A. Morgan is plant physiologist and Feike Dijkstra is post-doc research ecologist at the Rangeland Resources Research Unit, Ronald F. Follett is research leader and soil scientist and Stephen Del Grosso is a soil scientist and ecologist at the Soil Plant Nutrient Research Unit, USDA Agricultural Research Service Northern Plains Area, Fort Collins, Colorado. Leon Hartwell Allen Jr. is soil ...

Egypt is considered one of the agricultural countries that used to export all grain and crops world. During recent decades, there has been deterioration in irrigation projects as a result shortage water lands, which led an ineffective economic return, loss lands due soil salinity return from Egypt. Therefore, it necessary develop systems study feasibility those through studies, will cause incre...

Thís article cxamines recent transformations of the coffee landscape of northern Latin Ame rica through the optic of "place as process." As coffee became the most impurtant regional export crop, its "place" evolved. Coffee lands in northern Latin America now embrace 3.1 million hectares, often contiguous across international borders. Like many agricultural systems, coffee has succumbed to inten...

Tarım, ülkelerin geleceği için vazgeçilemeyecek derecede önemli bir sektördür. Beslenmeden ekonomik gelişmeye, istihdamdan sanayi gerekli olan hammadde ihtiyacının karşılanmasına, ihracattan ulusal gelire sağladığı katkılara tüm alanlarda başat faktör olarak tarım ön plana çıkmaktadır. Hayatın hemen her alanını etkileyen böylesine sektör, ne yazık ki arazilerinin amaç dışı kullanımı sonucu sürd...