Unverified80% confidenceFactTime unknown
美国农田面积从1950年代的约12亿英亩降至如今的约9亿英亩
1
Sources
80%
Confidence
Long-term
Relevance
6/1/2026
First Seen
Sources
数据中心占用农田威胁粮食安全?数据告诉你真相
rss
Related Entities
Related Claims
Unverified美国农场总面积从1950年代的约12亿英亩下降到如今的约9亿英亩99% similarUnverified美国玉米平均亩产从1960年代的每英亩约55蒲式耳增长到2023年的超过每英亩175蒲式耳57% similarUnverifiedModern soil science research has found that the carbon content of Amazonian Dark Earth is more than 70 times that of surrounding natural soils, its phosphorus content is hundreds of times higher, and its fertility can persist for thousands of years without human maintenance.51% similar
Cite This Claim
Stable URI
https://kongchang.com/claim/34713API
curl https://kongchang.com/api/v1/knowledge/claims/34713MCP
get_claim(id=34713)