| 摘要: |
| 白浆土广泛分布在黑龙江省东部和吉林省部分地区,黑龙江省境内主要分布在三江平原、完达山前的岗地和平地以及抚远三角洲,面积近三千万亩,已耕地九百多万亩。三江平原的耕地中,白浆土占31%。因此,白浆土是我国东北已垦及有待开垦的重要土类之一。由 |
| 关键词: 土壤水分含量 土层 白浆层 周年动态 岗地白浆土 淀积层 有机质含量 物理性质 三江平原 小麦 |
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| ANNUAL FLUCTUATION OF SOIL MOISTURE OF GLEYED PLANOSOL AND PROBLEMS OF SOIL RECLAMATION |
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| Abstract: |
| Accrding to a four years' observation on the soil moisture fluctu- ation of gleyed planosol sampling down the profile to 1 meter depth,the characteristics of soil moisture change following the season and the curves of moisture fluctuations were obtained. Gleyed planosol is a kind of hydromorphic soil with three distinct layers on the profile,namely black chernozemic layer,white eluvial layer and brown illuvial layer.The last two layers are highly compact and impermeable. The soil moisture fluctuation during... |
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