Natural Resources, Agricultural Productivity, and Food Security
[摘要] This issue brief describes ERS research on international differences in the quality of natural resources and their effects on agricultural productivity and food security.
[发布日期] 2001-04-26 [发布机构] United States Department of Agriculture
[效力级别] [学科分类] 农业科学（综合）
[关键词] Natural resources;soils;climate;land quality;land degradation;agricultural productivity;food security [时效性]
