| 玉米-苜蓿间作的生态效应 |
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| 引用本文： | 陈玉香,周道玮.玉米-苜蓿间作的生态效应[J].生态环境,2003,12(4):467-468. |
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| 作者姓名： | 陈玉香 周道玮 |
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| 作者单位： | 1. 吉林大学生物与农业工程学院,吉林,长春 130025
2. 东北师范大学草地科学研究所,吉林,长春 130024 |
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| 基金项目： | 国家重点基础研究发展规划项目(G2000018606) |
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| 摘 要： | 研究地区位于东北农牧交错带东段。在农牧交错地区，粮食生产与饲草生产同等重要，因此将玉米与苜蓿间作，研究了这种间作的生态效应。发现玉米与苜蓿间作，对土壤理化性质有明显改善，表现在土壤有机质质量分数上升，体积质量下降．土壤全氮、全磷、全钾质量分数升高。因此玉米与苜蓿问作在农牧交错地区具有可行性。
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| 关 键 词： | 玉水 苜蓿 间作 生态效应 |
| 文章编号： | 1672-2175(2003)04-0467-02 |
| 修稿时间： | 2003年6月15日 |
The ecological effect of maize intercropping with alfalfa in the ecotone between agriculture and animal husbandry in northeast China |
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| CHEN Yu-xiang,ZHOU Dao-wei . School of Biological and Agricultural Engineering,Jilin University,Changchun ,China.The ecological effect of maize intercropping with alfalfa in the ecotone between agriculture and animal husbandry in northeast China[J].Ecology and Environmnet,2003,12(4):467-468. |
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| Authors: | CHEN Yu-xiang ZHOU Dao-wei School of Biological and Agricultural Engineering Jilin University Changchun China |
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| Institution: | CHEN Yu-xiang1,ZHOU Dao-wei2 1. School of Biological and Agricultural Engineering,Jilin University,Changchun 130025,China, 2. Institute of Grassland Science,Northeast Normal University,Changchun 130024,China |
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| Abstract: | The study was carried out in the west of Jilin province, which belong to the ecotone between agriculture and animal husbandry in northeast China. Maize was intercropped with alfalfa because the importance of food yield is the same as that of forage yield. The ecological effect of the intercropping on the soil was studied. The physical and chemical character were improved obviously after intercropping. The organic matter content increased compared with the contrast. The soil compactness decreased. Total nitrogen, phosphorus and potassium contents increased compared with the contrast. So the intercropping is reasonable in the ecotone between agriculture and animal husbandry in northeast China. |
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| Keywords: | maize alfalfa intercrop ecological effect |
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