地形对漫川漫岗黑土区大豆产量的影响
S565.1%S126; 为研究黑土区田块尺度地形对大豆产量造成的影响,在海伦东兴合作社具有明显地形起伏的地块,采集大豆田间试验数据,考虑温度、太阳辐射、坡度、土壤养分等因素,运用作物生长模型DSSAT(Decision Support System for Agrotechnology Transfer)模型对各样点进行参数率定及验证,得出以下结论:1)DSSAT模型的模拟产量与实际产量的相对均方根误差为7.9%,模拟结果表现为优,表明运用作物模型模拟不同地形上的产量变异具有可行性;2)地形通过影响作物生长环境因子的时空差异决定产量差异,田块尺度温度、水分和坡度是影响产量差异的主要因素;3)...
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          | Published in | 农业工程学报 Vol. 36; no. 8; pp. 88 - 95 | 
|---|---|
| Main Authors | , , , , , , , | 
| Format | Journal Article | 
| Language | Chinese | 
| Published | 
            东北农业大学公共管理与法学院,哈尔滨,150030%中国科学院东北地理与农业生态研究所,长春,130012%东北农业大学公共管理与法学院,哈尔滨 150030
    
        15.04.2020
     中国科学院东北地理与农业生态研究所,长春 130012  | 
| Subjects | |
| Online Access | Get full text | 
| ISSN | 1002-6819 | 
| DOI | 10.11975/j.issn.1002-6819.2020.08.011 | 
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| Abstract | S565.1%S126; 为研究黑土区田块尺度地形对大豆产量造成的影响,在海伦东兴合作社具有明显地形起伏的地块,采集大豆田间试验数据,考虑温度、太阳辐射、坡度、土壤养分等因素,运用作物生长模型DSSAT(Decision Support System for Agrotechnology Transfer)模型对各样点进行参数率定及验证,得出以下结论:1)DSSAT模型的模拟产量与实际产量的相对均方根误差为7.9%,模拟结果表现为优,表明运用作物模型模拟不同地形上的产量变异具有可行性;2)地形通过影响作物生长环境因子的时空差异决定产量差异,田块尺度温度、水分和坡度是影响产量差异的主要因素;3)坡顶和坡底的产量相对较高,且产量变异性较小,阳坡虽然接收到更多的光照,却由于水分胁迫造成减产,坡底和平缓坡顶水肥保持较好,易获得高产.研究成果为田间精细管理与田块尺度耕地高效利用提供科学依据. | 
    
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| AbstractList | S565.1%S126; 为研究黑土区田块尺度地形对大豆产量造成的影响,在海伦东兴合作社具有明显地形起伏的地块,采集大豆田间试验数据,考虑温度、太阳辐射、坡度、土壤养分等因素,运用作物生长模型DSSAT(Decision Support System for Agrotechnology Transfer)模型对各样点进行参数率定及验证,得出以下结论:1)DSSAT模型的模拟产量与实际产量的相对均方根误差为7.9%,模拟结果表现为优,表明运用作物模型模拟不同地形上的产量变异具有可行性;2)地形通过影响作物生长环境因子的时空差异决定产量差异,田块尺度温度、水分和坡度是影响产量差异的主要因素;3)坡顶和坡底的产量相对较高,且产量变异性较小,阳坡虽然接收到更多的光照,却由于水分胁迫造成减产,坡底和平缓坡顶水肥保持较好,易获得高产.研究成果为田间精细管理与田块尺度耕地高效利用提供科学依据. | 
    
| Author | 侯淑涛 鲍依临 武丹茜 孟令华 刘焕军 叶强 崔杨 钱蕾  | 
    
| AuthorAffiliation | 东北农业大学公共管理与法学院,哈尔滨,150030%中国科学院东北地理与农业生态研究所,长春,130012%东北农业大学公共管理与法学院,哈尔滨 150030;中国科学院东北地理与农业生态研究所,长春 130012 | 
    
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| Author_FL | Ye Qiang Hou Shutao Liu Huanjun Meng Linghua Qian Lei Wu Danqian Cui Yang Bao Yilin  | 
    
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| Title | 地形对漫川漫岗黑土区大豆产量的影响 | 
    
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