本书作者先后四次深入内蒙古呼伦贝尔草原,以详实的案例调查来反映当下牧区正经历着前所未有的环境压力.其中包括"对自然的规训":牧区农耕化形成;"对资源的汲取":牧区市场化进程;"对生态的重塑":草原生态治理的困境等内容.
Hedging Against Inflation: Anticipating the Future, a Business Guide to Managing the Effects of Cost Price and Parity Changes
Agricultural Science: A Revision Scheme for Students Preparing for the West African School Certificate Examination ('O' Level) and the East...
Stakeholder Approaches to Planning Participatory Research by Multi-institution Groups
Pollen analysis by Jacobs on the fill of residual channel b , as well as research at Houten Oudwulverbroek and at Wijk bij Duurstede , demonstrated the absence of dense woodland in the central river area . 619 Hence it seems more likely ...
A través de su postura y de las que posteriormente hacen el capitán Sebastián Fernández Farías , el capitán Pedro Montero , Luis de Ceballos Ruiz , receptor de las alcabalas , el capitán Alonso Carrió de Valdés , encomendero y sargento ...
Cooper , D. 1980 . How urban workers in Botswana manage their cattle and lands : Selebi - Pihkwe case studies . Working paper , No. 4 . Central Statistics Office , Gaborone . Cooper , D. 1982. Socio - economic and regional factors of ...
Pearson Education, Upper Saddle River, New Jersey. Manlay, R., Masse, D., Chotte, J.-L., Feller, C., Kaire, M., Fardoux, J. and Pontanier, R. (2002) Carbon, nitrogen and phosphorus allocation in agro-ecosystems of a West African savanna ...
This new edition provides examples not only from the farm, but also throughout the entire food and fiber industry and features updated chapters on natural resources and the government's role in agriculture.
... principalmente a la emigración , que ha tenido una tasa anual promedio de 2.1 % por la década de 1950-1960 y de 3.7 % para 1960-1970 ( tasa de migración calculada con y base en la fórmula presentada en Stoltman y Ball 1971 ) .
Rural Economic Situation: Submission to the National Rural Advisory Council (August, 1975)