作物生产潜力模型在中国的应用

Crop Productivity Potential Model Applied in China

作物生产潜力的研究可以为提高作物产量及合理进行农业生产规划提供依据。长期以来 ,中国学者采用了包括经验模型和物理模型等多种方法计算作物的生产潜力。经验模型使用方便但计算精度比较低 ,而物理模型计算精度较高但使用比较复杂。中国目前这些方法都有使用 ,但仍以应用国外研制的模型为多。本文回顾了各类模型的特点和应用情况 ,以利于发现问题和明确研究方向 ,发展中国自己的作物生长模型。

The research of crop productivity potential can offer grounds for increasing crop yield and establishment of the agricultural programs. For a long time, Chinese scientists had adopted many models to calculate the crop productivity potential; empirical models and physical-based models are included. The empirical models are simple to use but the precision of models is lower; the precision of physically-based crop growth models is better but they are very complex to use. These models are all in use for different aims in China, but most of themes were used directly from foreign countries. We reviewed the characters of these models and their applications in china, in order to discover the focus for developing crop growth model adaptable to China.