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Managing drought risk on the ranch: a planning guide for great plains ranchers [研究报告]
-Lincoln (UNL). 2012-01-01
National Drought Mitigation Center;  United States Department of Agriculture
Adobe PDF(2398Kb)  |  View/Download：17/0
 
Towards a compendium on national drought policy: proceedings of an expert meeting [研究报告]
WMO. 2010-01-01
World Meteorological Organization;  George Mason University;  Environmental Science and Technology Center;  National Drought Mitigation Center;  United States Department of Agriculture - World Agriculture Outlook Board
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Agricultural drought indices: proceedings of an expert meeting [研究报告]
WMO. 2010-01-01
Mannava V.K. Sivakumar;  Raymond P. Motha;  Donald A. Wilhite;  Deborah A. Wood;  World Meteorological Organization;  United States Department of Agriculture;  National Drought Mitigation Center (Lincoln, United States);  United Nations International Strategy fo
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