JOURNAL OF NATURAL RESOURCES >
THE PREDICTION MODELS OF POPULATION AND GRAIN OUTPUT IN THE LOESS PLATEAU REGION
Key words: population; grain output; prediction model
Yuan Jiazu . THE PREDICTION MODELS OF POPULATION AND GRAIN OUTPUT IN THE LOESS PLATEAU REGION[J]. JOURNAL OF NATURAL RESOURCES, 1991 , 6(4) : 311 -317 . DOI: 10.11849/zrzyxb.1991.04.003
/
〈 | 〉 |