GU Xin.Spatial Variation Analysis of Soil Aggregates in Dry Farmland[J].HEILONGJIANG AGRICULTURAL SCIENCES,2017,(08):43-46.[doi:10.11942/j.issn1002-2767.2017.08.0043]
旱田土壤团聚体的空间变异分析
- Title:
- Spatial Variation Analysis of Soil Aggregates in Dry Farmland
- 文章编号:
- 1002-2767（2017）08-0043-04
- 分类号:
- S152.4
- 文献标志码:
- A
- 摘要:
- 为更好地进行现代化农田管理,以黑龙江省农业科学院大庆分院试验基地一旱田为研究对象，运用地统计学理论和地理信息系统技术，对研究区土壤团聚体的空间变异进行了分析。结果表明：在该研究区中，>5.00 mm、0.50～0.25 mm、<0.25 mm三个级别团聚体均表现为中等变异；5.00～2.00 mm、2.00～1.00 mm、1.00～0.50 mm三个级别团聚体均表现为强变异。土壤MWD在0.20～2.16 mm，平均为0.84 mm，表现为中等变异。土壤各级团聚体和土壤MWD统计上服从正态或对数正态分布，空间上呈现明显的变异性。
- Abstract:
- To better manage modern farmland,with a dry farmland at the testing ground of Daqing Branch of Heilongjiang Academy of Agricultural Sciences as the research object,the spatial variation of soil aggregates in the study area was analyzed by using geostatistics and geographic information system (GIS) techniques,which provided some scientific basis for modern farmland management.The results showed that the aggregates in >5.00 mm,0.5~0.25 mm and <0.25 mm three levels showed moderate variation and the aggregates in 5.00~2.00 mm,2.00~1.00 mm and 1.00~0.50 mm three levels showed strong variation.Soil MWD was 0.20~2.16 mm,with an average of 0.84 mm,showing moderate variation.Soil aggregates at all levels and soil MWD statistically obeyed the normal or lognormal distribution,showing a significant variability in space.
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备注/Memo
收稿日期：2017-06-03作者简介：顾鑫（1988-），男，黑龙江省讷河市人，硕士，研究实习员，从事土壤改良与土壤生态研究。E-mail:guxin88@yeah.net。