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| 东北黑土区土壤资源现状与存在问题 | |
| 引用本文： | 魏丹,杨谦,迟凤琴. 东北黑土区土壤资源现状与存在问题[J]. 黑龙江农业科学, 2006, 0(6): 69-72 |
| 作者姓名： | 魏丹 杨谦 迟凤琴 |
| 作者单位： | 1. 哈尔滨工业大学,哈尔滨,150001;黑龙江省农科院土肥所,哈尔滨,150086 2. 哈尔滨工业大学,哈尔滨,150001 3. 黑龙江省农科院土肥所,哈尔滨,150086 |
| 基金项目： | 黑龙江省科技厅重点自然科学基金 |
| 摘 要： | 介绍了东北黑土区土壤资源利用现状及存在的问题,分析了50年来东北黑土农田生产力和生态系统的变化.当前东北黑土退化主要表现在:①土壤肥力下降;②水土流失严重;③出现盐化、碱化、酸化等障碍;④理化性质恶化;⑤中低产田面积扩大.东北黑土区已形成300亿kg粮食生产能力和200亿kg商品粮的供应能力.是国家重要的商品粮基地. |
| 关 键 词： | 东北黑土区 现状 问题 |
| 文章编号： | 1002-2767（2006）06-0069-04 |
The Soil Resource Conditions and the Problems in Northeast Black Soil Regions |
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| WEI Dan,YANG Qian,CHI Feng-qin. The Soil Resource Conditions and the Problems in Northeast Black Soil Regions[J]. Heilongjiang Agricultural Science, 2006, 0(6): 69-72 | |
| Authors: | WEI Dan YANG Qian CHI Feng-qin |
| Affiliation: | 1. Harbin Institute of Technology, Harbin 150001; 2. Soil and Fertilizer Institute, Hei longjiang Academy of Agricultural sciences, Harbin 150086 |
| Abstract: | The soil resource conditions and problems were introduced and the change of field production and ecological system of the northeast black soil regions in passed 50 years was analyzed.Problems of black soil degradation were the soil quality descends,the soil erosion severity,saline-sodiced and acidation,physical and chemical characteristics degradation and areas of lower yield enlarged.It is the important merchandise food base in China because grain yield is 30 billion kg /year and commodity grain is 20 billion kg/year in the regions. |
| Keywords: | The black soil conditions problem |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |