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| 覆沙改良科尔沁沙地-松辽平原交错区盐碱地与造田技术研究 | |
| 引用本文： | 周道玮,田雨,王敏玲,宋彦涛,张正祥.覆沙改良科尔沁沙地-松辽平原交错区盐碱地与造田技术研究[J].自然资源学报,2011,26(6):910-918. |
| 作者姓名： | 周道玮 田雨 王敏玲 宋彦涛 张正祥 |
| 作者单位： | 1. 中国科学院 东北地理与农业生态研究所, 长春 13001; 2. 东北师范大学 a.生命科学学院, b.城市与环境科学学院, 长春 130024 |
| 基金项目： | 国家自然科学基金(30970493) |
| 摘 要： | 为了研究盐碱地改造利用,进行了沙土和盐碱土混合,研究混合后的"沙碱土"特性,并实验了其种植作物的幼苗表现。科尔沁沙地与松嫩平原盐碱地和辽河平原盐碱地在松辽分水岭两侧交错重叠分布,面积达350×104hm2,具有可改造旱田100×104hm2的潜力。当盐碱土中混入40%~60%的沙丘风沙土时,电导率指示的盐分含量降低20%~50%,碱化度降低40%~60%,满足种植玉米、向日葵等旱作作物的条件。此区进行盐碱地"覆沙造旱田"在理论和实践上都具有可行性。 |
| 关 键 词： | 覆沙 作物生长 盐碱地 |
| 收稿时间： | 2010-09-25 |
| 修稿时间： | 2011-01-05 |
Research on Sand-covered Reclaimed Crop Land of Alkali-saline Soil |
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| ZHOU Dao-wei,TIAN Yu,WANG Min-ling,SONG Yan-tao,ZHANG Zheng-xiang.Research on Sand-covered Reclaimed Crop Land of Alkali-saline Soil[J].Journal of Natural Resources,2011,26(6):910-918. | |
| Authors: | ZHOU Dao-wei TIAN Yu WANG Min-ling SONG Yan-tao ZHANG Zheng-xiang |
| Institution: | 1. Northeast Institute of Geography and Agroecology, CAS, Changchun 130012, China; 2. a. School of life Science, b. School of Urban and Environmental Sciences, Northeast Normal University, Changchun 130024, China |
| Abstract: | In order to reclaim alkali-saline land,we mixed the sandy soil to alkali-saline soil,then evaluated the chemical parameters of mixed soil and the crop seedling response under such grow condition.Sandy land in Horqin,alkali-saline land in Songnen Plain and Liaohe Plain besides watershed ridge of Songnen Plain watershed and Liaohe Plain watershed interlaced and overlapped in mosaic distribution,with an overlapping area up to 3.5 million hm2.It has the potential to be reclaimed as crop land of one million hm2.... |
| Keywords: | sand-covered crop growth alkali-saline land |
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