中国生态农业学报2017，Vol.25Issue(3)：419-428,10.DOI:10.13930/j.cnki.cjea.160342
三江平原大豆种植的土地适宜性评价
Evaluation of agricultural land suitability for soybean cultivation in the Sanjiang Plain, Northeast China
摘要
Abstract
The Sanjiang Plain is one of the most important grain production base in China. The importance of the plain could increase with the promulgation of policies that encourage farmers to cultivate soybean to adapt to the global climate change and CO2 concentration rise. In order to make full use of the advantages in climate and soil conditions, there is the need for rational allocation of soybean cultivation areas in the Sanjiang Plain. In this paper, firstly, we carried out climate suitability evaluation for the cultivation of soybean based on climate and soil inventory with the GAEZ framework of FAO/IIASA. Then, we used soil thickness, soil texture, soil pH, land drainage and flooding conditions as indicators of soil suitability evaluation and the results of the analysis were degraded by Albic bleach soil in the Sanjiang Plain. Finally, the results of the agricultural land suitability evaluation were obtained by overlapping layers in GIS at the grid scale (30 m × 30 m) and Suitability Index (SI) calculated to geospatially compare soybean cultivation in the study area. The results showed that: 1) most parts of the Sanjiang Plain was suitable for soybean cultivation, except for areas with slope≥ 30%. 2) About 8.5 × 104 km2 (78.75% of the plain) was suitable for soybean cultivation, especially gentle slope (2%-5%) and undulating slope (5%-8%) areas along the bank of Songhua, Woken and Muleng Rivers with good soil texture and high drainage. 3) Nine counties with the highest SI (≥ 70%) included Boli, Yilan, Tangyuan, Jamusi, Jixian, Huachuan, Youyi, Suibin and Fujin. Then 10 counties (Tongjiang, Huanan, Hulin, Baoqing, Fuyuan, Qitaihe, Luobei, Jidong, Raohe and Shuangyashan) had higher SI (60%-70%); Hegang, Mishan, Jixi and Muleng counties had the lowest SI (SI≤ 60%). 4) For its simple and objective evaluation procedure, the GAEZ framework was applicable in locally distinguishing spatial differences in soybean cultivation areas needed in rational land allocation.关键词
GAEZ模型/大豆种植/土地适宜性/三江平原Key words
GAEZ model/Soybean cultivation/Land ecological suitability/Sanjiang Plain分类
农业科技引用本文复制引用
卜坤,王治良,张树文,杨久春..三江平原大豆种植的土地适宜性评价[J].中国生态农业学报,2017,25(3):419-428,10.基金项目
国家自然科学基金项目(41301510)、国家科技基础性工作专项(2011FY110400, 2013FY114600)、齐齐哈尔市科技局软课题(RKX-201406)和黑龙江省哲学社会科学研究规划青年项目(16JLC01)资助 This work was supported by the National Natural Science Foundation of China (41301510), the National Program on Basic Research Project of China (2011FY110400, 2013FY114600), the Soft Scientific Topics of Qiqihar Science and Technology Bureau (RKX-201406), and the Philosophy and Social Sciences Research Plan of Heilongjiang Province (16JLC01). （41301510）
