摘要
研究目的发展适合于中国的农业生态区(AEZ)方法,并应用于全国耕地粮食生产潜力评价的实践。研究方法农业生态区法。研究结果在2000年投入水平下的全国耕地粮食生产潜力为食用粮58984.28万吨,油料3017.76万吨,糖料9744.46万吨。研究结论AEZ是宏观尺度土地生产潜力评价的有效方法。受基础数据精度、评价参数适用性等影响,评价的结果仍然有待于进一步验证。
The purpose of this research is to develop a China-adapted AEZ methodology and applies it to assesse food productivity potential of cultivated land in China. The methodology of AEZ (Agro-Ecological Zones) is explored. Under the land utilization types and agricultural inputs of year 2000, the food productivity potential of cultivated land is assessed as follows: cereal 589.8 million ton, oil-bearing crops 30.17 million ton, and sugar crops 97.4 million ton. Results show that AEZ is an effective method for assessing land productivity potential in macro level. However, when applied to regional scale, further validation of results is needed due to inadequate accuracy of data and calibration issues.
出处
《中国土地科学》
CSSCI
2004年第4期31-37,共7页
China Land Science
