期刊论文

中文

资源科学

1007-7588

2010

32

4

724-730

国家自然科学基金青年项目(40801078);湖北省自然科学基金(2009CDB220)

本校为其他机构

以江汉平原后湖地区耕地为研究对象,应用生态位适宜度理论,以50m×50m栅格作为评价单元,对各单元水稻、小麦、棉花和油菜4种作物的生态位适宜度值及限制因子进行了定量分析,并提出了发挥最大资源优势和获取最高经济收益方案下各评价单元的最优推荐轮作模式。结果表明,研究区生境条件整体较好,以最适宜和适宜两级为主,最大生态位适宜度值达0.9186;研究区有效硼、有效锌含量低,已成为该区域限制土壤生产潜力发挥的重要因素;同季作物以水稻、小麦的生态适宜性较高,适宜面积较大,分别占到72.1%和71.93%;最大资源优势方案下,水稻-小麦轮作方式的推荐范围最广,其次为水稻-油菜、棉花-小麦和棉花-油菜;...

The niche-fitness model developed on the basis of niche can reflect the fitness degree of crops to environmental conditions relatively well. It can also be utilized to analyze factors restricting the growth of crops. However, there has little work on suitability evaluation especially multi-suitability evaluation on tillage by applying the niche-fitness theory. Based on the niche-fitness model, in the present work, the authors performed a study on optimization planting types over the Houhu Farm areas in the Jianghan Plain at a evaluation resolut...