| 挖损耕地复垦前后生产能力变化研究 |
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| 引用本文： | 郭力娜,运向杰,张凤荣,徐 艳.挖损耕地复垦前后生产能力变化研究[J].资源科学,2010,32(4):737-742. |
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| 作者姓名： | 郭力娜 运向杰 张凤荣 徐 艳 |
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| 作者单位： | 中国农业大学资源与环境学院,北京,100193 |
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| 基金项目： | 高等学校博士学科点专项科研基金，国家自然科学基金，国家科技支撑项目 |
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| 摘 要： | 本文以华北平原的曲周县为例,通过实地调查和对比分析的方法,对挖损耕地复垦前后生产能力变化进行研究.研究结果表明,挖损地块与对照地块相比,二者生产能力没有显著差别.这主要是因为曲周县位于华北平原地区,这里土层深厚,且在县域范围内不同土层土壤质地和肥力水平变化不大,各土层保水保肥能力相当,只是底层土壤未熟化,如果能保证水肥和农业管理投入,挖损耕地生产能力会很快恢复.建议复垦工作须因地制宜,在平原地区,挖损耕地不超过一定深度且不影响影响耕作的情况下,可以直接恢复耕种,不需用专门的复垦工艺进行挖损耕地的复垦或培肥.
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| 关 键 词： | 挖损耕地 复垦 生产能力 对比分析 曲周县 |
hanges of Productivity of Damaged Cultivated Land Due to Digging Prior and After Reclamation |
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| GUO Lin,YUN Xiangjie,ZHANG Fengrong and XU Yan.hanges of Productivity of Damaged Cultivated Land Due to Digging Prior and After Reclamation[J].Resources Science,2010,32(4):737-742. |
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| Authors: | GUO Lin YUN Xiangjie ZHANG Fengrong and XU Yan |
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| Institution: | GUO Lina,YUN Xiangjie,ZHANG Fengrong,XU Yan (College of Resources , Environment China Agricultural University,Beijing 100193,China ) |
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| Abstract: | Over the vast rural areas, people dig and borrow soils from the cultivated land for purposes of constriction like build building, brick baking and so forth. As such, losses of cultivated land soils over these areas are significant. Since digging cultivated land usually causes relatively fragmented soils and the farmland often belongs to different individuals, farmers tended not to take advantage of specialized reclamation measures and technologies to restore the fertility of cultivated land; it recovers gra... |
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| Keywords: | Digging damaged land Reclamation Productivity change Contrastive analysis Quzhou |
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