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结果 191-200 的 281
Ecology and pollution of Ganga River
1993
Khanna, Dev Raj
Socio-economic assessment of global change and air pollution-related forestry damage
1993
de Steiguer, J.E. (USDA Forest Service, Raleigh, North Carolina (USA))
Information on potential forestry losses seems to be crucial to government officials that they can properly assess the costs and benefits of limiting pollution and greenhouse gas emissions. However very few socio-economic assessments of potential losses have been completed.
显示更多 [+] 显示较少 [-]The Swiss National Forest Inventory, an information for the assessment of the condition and long-term changes of Swiss forest
1993
Brassel, P. (Swiss Federal Institute for Forest Snow and Landscape Research, Birmensdorf (Switzerland))
The national forest inventory of Switzerland is a large-scale assessment of the condition and changes in Swiss forests. Some of the most important advantages of the NFI are its permanence, the long-term and flexible inventory design, the high data-quality and the compatibility with the damage inventory.
显示更多 [+] 显示较少 [-]Analysen von Inhaltsstoffen der Umgebungsluft mit schulischen Mitteln | The use of school supplies to analyze the content of local air 全文
1993
Dämmgen, Ulrich
Health impacts related to irrigated agriculture in Latin America
1993
Reiff, F. (Pan American Health Organization, Washington, DC (USA))
Plant nutrient management and the environment
1993
Joly, C.
Improving nitrogen management in irrigated, intensely cultivated areas: the approach in France
1993
Ignazi, J.C. (Comite d'Orientation pour la Reduction de la Pollution par les Nitrates, Paris (France))
Results of the questionnaire filled out by participating countries from Latin America and the Caribbean
1993
Chanduvi, F. | Prieto-Celi, M.
