| 旱地农田水肥效应研究进展 |
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| 引用本文： | 马强,宇万太,沈善敏,张璐.旱地农田水肥效应研究进展[J].应用生态学报,2007,18(3):665-673. |
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| 作者姓名： | 马强 宇万太 沈善敏 张璐 |
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| 作者单位： | 1.中国科学院沈阳应用生态研究所， 沈阳 110016；;2.中国科学院研究生院， 北京 100039 |
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| 基金项目： | 中国科学院科研基金;中国科学院知识创新工程项目;中国科学院沈阳应用生态研究所海外留学基金 |
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| 摘 要： | 水、肥是提高旱地农业生产力的关键，也是制约该类型区农业发展的主要因素，能否充分发挥水肥的增产效应对我国粮食安全与农业可持续发展具有重要意义.本文介绍了灌溉试验、旱棚试验与长期定位试验等几种水肥效应常用研究方法的设计原理及不足；并在总结旱农地区水肥协同效应定性与定量研究的基础上，对旱地农业水肥相互作用机理和交互作用模型进行了系统论述，指出适宜的水、肥条件对作物生长与产量形成具有明显的正交互作用，但因研究方法与试验地自然条件的不同而存在明显差异.结合农业生态系统特点对未来旱地农业水、肥效应的研究方向进行了展望.
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| 关 键 词： | 森林健康 风险评价 森林资源管理 |
| 收稿时间： | 2006-3-10 |
| 修稿时间： | 2006-12-11 |
Research advances in water-fertilizer effect on dry land farmland |
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| MA Qiang,YU Wan-tai,SHEN Shan-min,ZHANG Lu.Research advances in water-fertilizer effect on dry land farmland[J].Chinese Journal of Applied Ecology,2007,18(3):665-673. |
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| Authors: | MA Qiang YU Wan-tai SHEN Shan-min ZHANG Lu |
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| Affiliation: | 1.Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China；;2.Graduate University of Chinese Academy of Sciences, Beijing 100039, China |
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| Abstract: | Water and fertilizer are the keys in improving dry land productivity,and the main factors limiting the agricultural development in dry land regions.For our food security and agricultural sustainable development,it's of significance to bring the effect of water and fertilizer on increasing yield into full play.This paper introduced the design principles of several commonly used methods in researching the effect of water and fertilizer,e.g.,irrigation experiment,rainproof-shed experiment and long-term experiment,compared their advantages and disadvantages,and discussed the mechanisms and models of water-fertilizer interaction on dry land farmland,based on the sum-up of the achievements of related qualitative and quantitative researches.It was indicated that under appropriate conditions,there was a positive interaction between water and fertilizer on grain yield,but the effect differed with research method and natural condition.The development trend of the researches on the water-fertilizer effect on dry land farmland in light of the characteristics of agro-ecosystem was also prospected. |
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| Keywords: | dry land farmland water-fertilizer effect methodology sustainable development |
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