TY  - BOOK
AU  - Denevan,William M.
TI  - Aboriginal Drained-Field cultivation in the Americas: Pre-Columbian reclamation of wet lands was widespread in the savannas and highlands of Latin America
KW  - CULTIVO-AMÉRICA LATINA
KW  - AGRICULTURA-AMÉRICA LATINA
N2  - Were population growth begins to exceed the existing carrying capacity, self-sufficient aboriginal farmens may either migrate or increase production through higher yields, more frequent cropping or the utilization of land which is marginal because of poor soil, steep slopes, lack of water, or excesive water
UR  - https://drive.google.com/file/d/16R1lrgzkm4HwRY-4PDXsx4YoHIGepHA4/view?usp=drivesdk
ER  -