| 我国东北黑土地保护与肥力提升的成效与建议 |
| |
| 引用本文： | 韩晓增,邹文秀.我国东北黑土地保护与肥力提升的成效与建议[J].中国科学院院刊,2018,33(2):206-212. |
| |
| 作者姓名： | 韩晓增 邹文秀 |
| |
| 作者单位： | 中国科学院东北地理与农业生态研究所; |
| |
| 基金项目： | 国家重点研发计划（2016YFD0300806），中国科学院科技服务网络计划（STS计划）（KFJ-SW-STS-142） |
| |
| 摘 要： | 我国东北黑土地是世界上最肥沃的土壤,土壤环境质量良好,适合优质农产品生产。黑土地开垦时间约200年,但是土壤肥力发生了巨大变化。开垦后大约经历了30年有机质含量快速下降期,使土壤中氮、磷和钾的比例更适合作物生长且肥力不断的提高;此后,土壤有机质呈现缓慢下降的趋势,土壤肥力也随之下降,这部分土壤有机质流失导致了黑土地退化。政府先后采取了多项黑土保护措施,获得了初步成效。建议进一步深化黑土地的科学技术研究;强化黑土保护政策的可持续性;建立可靠的野外监测网络,积累有价值的基础数据;实行黑土地保护的科技-管理-生产三位一体方式,实现全民保护黑土地。
|
| 关 键 词： | 东北黑土保护 现状与问题 肥力提升 成效与建议 |
| 收稿时间： | 2018/1/28 0:00:00 |
Effects and Suggestions of Black Soil Protection and Soil Fertility Increase in Northeast China |
| |
| HAN Xiaozeng and ZOU Wenxiu.Effects and Suggestions of Black Soil Protection and Soil Fertility Increase in Northeast China[J].Bulletin of the Chinese Academy of Sciences,2018,33(2):206-212. |
| |
| Authors: | HAN Xiaozeng and ZOU Wenxiu |
| |
| Institution: | Northeast Institute of Agroecology and Geography, Chinese Academy of Sciences, Harbin 150081, China and Northeast Institute of Agroecology and Geography, Chinese Academy of Sciences, Harbin 150081, China |
| |
| Abstract: | Black soil region in Northeast China is one of the best fertile soil regions, with sound quality soil environment, which favorites agricultural productions. Soil fertility has been changed a lot after black soil has been utilized as farmland for about 200 years. Soil fertility was enhanced in the early period of black soil being reclaimed due to the occurrence of suitable ratio among nitrogen, phosphorous, and potassium, though soil organic carbon (SOC) decreased. Soil fertility was decreased as soil organic carbon decreased after 30 years that black soil had been reclaimed, which resulted in black soil degradation. Chinese government has taken many measures to protect black soil and significantly effect has been observed. Therefore, it is suggested that the research related to black soil protection should be carried on thoroughly, and accompanied policy for black soil protection should be strengthened with sustainability. It is also recommended to establish field observation stations to obtain valuable data, implement the integrated system of technology, management, and production for black soil protection management, finally to realize the overall black soil protection. |
| |
| Keywords: | black soil protection status and problems fertility increase effect and suggestions |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《中国科学院院刊》浏览原始摘要信息 |
| 点击此处可从《中国科学院院刊》下载免费的PDF全文 |
|
