{"title":"尽管气候趋势温和,南部非洲的作物产量却停滞不前","authors":"David B. Lobell, Richard J. Lee","doi":"10.1038/s43016-025-01203-1","DOIUrl":null,"url":null,"abstract":"<p>Southern Africa faces high food insecurity and projected declines in agroclimatic conditions. Multiple satellite measures indicate that cropland productivity has stagnated for most of the region except South Africa in the past 20 years, in contrast to what official crop statistics suggest. Climate trends do not explain this stagnation, with the region experiencing more rainfall and less warming than most climate model projections. A change of course is needed before climate impacts accelerate.</p>","PeriodicalId":19090,"journal":{"name":"Nature Food","volume":"23 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Crop productivity in southern Africa is stagnant despite moderate climate trends\",\"authors\":\"David B. Lobell, Richard J. Lee\",\"doi\":\"10.1038/s43016-025-01203-1\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Southern Africa faces high food insecurity and projected declines in agroclimatic conditions. Multiple satellite measures indicate that cropland productivity has stagnated for most of the region except South Africa in the past 20 years, in contrast to what official crop statistics suggest. Climate trends do not explain this stagnation, with the region experiencing more rainfall and less warming than most climate model projections. A change of course is needed before climate impacts accelerate.</p>\",\"PeriodicalId\":19090,\"journal\":{\"name\":\"Nature Food\",\"volume\":\"23 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2025-07-15\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Nature Food\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1038/s43016-025-01203-1\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nature Food","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1038/s43016-025-01203-1","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Crop productivity in southern Africa is stagnant despite moderate climate trends
Southern Africa faces high food insecurity and projected declines in agroclimatic conditions. Multiple satellite measures indicate that cropland productivity has stagnated for most of the region except South Africa in the past 20 years, in contrast to what official crop statistics suggest. Climate trends do not explain this stagnation, with the region experiencing more rainfall and less warming than most climate model projections. A change of course is needed before climate impacts accelerate.