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| 三峡库区坡耕地粮经果复合垄作对土壤侵蚀与养分流失的影响 | |
| 引用本文： | 王海明,李贤伟,陈治谏,廖晓勇.三峡库区坡耕地粮经果复合垄作对土壤侵蚀与养分流失的影响[J].水土保持学报,2010,24(3). |
| 作者姓名： | 王海明 李贤伟 陈治谏 廖晓勇 |
| 作者单位： | 1. 四川农业大学,四川雅安625014;中国科学院水利部成都山地灾害与环境研究所,四川成都610041 2. 四川农业大学,四川雅安,625014 3. 中国科学院水利部成都山地灾害与环境研究所,四川成都,610041 |
| 基金项目： | 中国科学院知识创新工程重大项目，中科院西部行动计划项目，三峡工程环境保护补偿经费监测类 |
| 摘 要： | 通过连续6年对粮经果复合垄作模式的研究结果表明:粮经果复合垄作模式使土壤含水量增加,具有显著的保水效益;粮经果复合垄作以聚土垄作与农林复合为基础,在减少用工投入的基础上增加系统产出、减少径流、控制土壤侵蚀与降低非点源污染方面起得非常重要的作用;粮经果复合垄作能有效改善坡耕地土壤结构,提高土壤养分的含量。垄作的物理阻挡作用对土壤径流的截持与减少泥沙的流失,有效的改善了土壤的养分含量。粮经果复合垄作模式比粮经果复合平作模式土壤孔度提高9.38%。粮经果复合垄作模式增加了0.02 mm土壤颗粒含量。与纯粮顺坡平作相比,径流量、侵蚀量平均减幅分别为97.83%,47.49%。坡耕地粮经果复合垄作水保效益显著,经济效益高,广泛适于三峡库区坡耕地的利用模式。 |
| 关 键 词： | 三峡库区 粮经果复合垄作 土壤侵蚀 |
Soil Erosion and Nutrient Loss of Slope of Pattern of Compound Farming of Grain-Case crop-Trees in Three Gorges Reservoir Area |
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| WANG Hai-ming,LI Xian-wei,CHEN Zhi-jian,LIAO Xiao-yong.Soil Erosion and Nutrient Loss of Slope of Pattern of Compound Farming of Grain-Case crop-Trees in Three Gorges Reservoir Area[J].Journal of Soil and Water Conservation,2010,24(3). | |
| Authors: | WANG Hai-ming LI Xian-wei CHEN Zhi-jian LIAO Xiao-yong |
| Institution: | WANG Hai-ming1,2,LI Xian-wei1,CHEN Zhi-jian2,LIAO Xiao-yong2(1.Sichuan Agriculture University,Yaan 625014,2.Institute of Mountain Hazards and Environment,CAS & Ministry of Water Resources,Chengdu 610041) |
| Abstract: | Study on affection compound farming of grain-case crop-trees of slope croplands to soil features in Three Gorges reservoir area,soil conservation measures including contour tillage of wide ridge and furrow covering and compound farming of grain-case crop-trees formed vertical agricultural structure of slope crop land.Results show that technique of compound farming of grain-case crop-trees play an important role in improves soil water and soil nutrient and soil instruct.Runoff detention by compound farming o... |
| Keywords: | Three Gorges reservoir area compound farming of grain-case crop-trees soil erosion |
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