| 黄土高原沟壑区不同种植年限果园土壤水分变化 |
| 投稿时间：2008-01-10 修订日期：2008-04-05 点此下载全文 |
| 引用本文：冉伟,谢永生,郝明德.黄土高原沟壑区不同种植年限果园土壤水分变化[J].西北农业学报,2008,17(4):229~233 |
| DOI:10.7606/j.issn.1004-1389.2008.04.050 |
| 摘要点击次数: 105 |
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| 基金项目:中科院农业项目(kscx1-yw-N-15-04);国家科技支撑计划(2006BAD09B10) |
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| 中文摘要:对黄土高原沟壑区不同种植年限果园土壤深层水分变化进行了研究。结果表明,受降水影响0~2m土层水分变化较大,且0~40 cm4、0~80 cm、80~200 cm三个土层土壤含水量之间的差异达到极显著水平;2 m以下由于没有水分的补给,土壤水分含量趋于稳定,出现了干燥现象。随着种植年限的增加,深层土壤的干燥化现象有增加趋势。 |
| 中文关键词:黄土高原 果园 水分变化 |
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| Study on Change of Soil Water in Orchards of Different Planting-life in Gully Region of Loess Plateau |
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| Abstract:Change of soil moisture in deep layer was studied in different planting-life in gully region of loess plateau.The results showed that,affected by precipitation,the soil moisture had great change in 0～2 m soil layer,and there was a significant difference among 0～40 cm,40～80 cm and 80～200 cm.Without water supply,soil moisture tended to be stable under 2 m soil layer which appeared desiccation.With the planting-life increasing,desiccation of deep soil layer tended to increase. |
| keywords:Loess plateau Orchard Moisture changes |
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