Comprehensive evaluation on compensatory effects of water recovery after drought based on projection pursuit classification model

被引：0
|
作者：
Hao S. [1 ]
Guo X. [1 ]
Zhang Z. [1 ]
机构：
[1] College of Agricultural Engineering, Hohai University
来源：
Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery | 2010年 / 41卷 / 01期
关键词：
Compensatory effects; Comprehensive evaluation; Projection pursuit classification; Water stress;
D O I：
10.3969/j.issn.1000-1298.2010.01.011
中图分类号：
学科分类号：
摘要：
An effective projection pursuit classification model is suggested to evaluate compensatory effects of water recovery after drought in order to avoid the uncertainty of the evaluation and the optimization, and to improve the accuracy of the evaluating model. It adopts an ant colony algorithm based on mutation and dynamic pheromone updating to find the best projective direction, and then uses the best projective direction to calculate the contribution of each evaluation index to the compensatory effects. The test results showed that photosynthetic rate directly reflected the capacity of compensatory growth. Thus it is a critical factor for compensatory effects, which conformed to the previous studies. The optimal compensatory effects appeared in the fifth day after appropriate rewatering.
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页码：59 / 62+33
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