旱塬地蓄水保土耕作技术措施的探讨
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Discussion on Tillage Techniques of Storing Water and Conservating Soil in Arid Plain
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    摘要:

    通过对旱塬地0~200cm不同层次土壤水分的定期观测,表明:旱塬地年内土壤水分动态,分为4个时期:晚春初夏强烈损失期;雨季恢复补充期;晚秋缓慢损失期;冬季早春相对稳定期。旱塬地土壤水分垂直分布分为3个层次,即水分速变层(0~20cm);水分活跃层(20~100cm);相对稳定层(100~200cm)。并在上述试验研究的基础上,对旱塬地蓄水保土耕作技术措施等进行了专题研究,表明:旱塬地向日癸与大豆带状间作,具有明显的水保及经济效益;旱塬地推行作物配方施肥技术,能够节约用肥,提高肥料利用率,促进作物增产。

    Abstract:

    The location observation of soil moisture at different layers from 0 cm to 200 cm have beenmade. It was concluded that the soil moisture dynamics within a year can be divided into four peri-ods in arid plain, i. e.,intensive consuming period in late spring and early summer,resuming andreplenishing peroid in rainfall season,slow consuming period in late autumn,relative stable periodin winter and early spring. The vertical distribution of soil moisture can be divided into three sec-tion,i. e.,quickly changing layer (0-20cm),brisking layer (20-100cm) and relative stable layer(100-200cm). On the basis of these results,special subjects have been taken to study tillagetechniques of storing Water and conservating soil in arid plain. The results were shown as fol-lows,in arid plain,the intercropping of sun flower and soybean in belt shape produces remarkablebenefits for soil and water conservation and economy;the objectives of saving on manure,improv-ing the utilization of manure and increasing yield could be obtained by popularizing the techniquesthat make up a prescription for manure-spreading.

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刘廷宏,王丽.旱塬地蓄水保土耕作技术措施的探讨[J].水土保持通报,1992,(6):64-70,77

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  • 收稿日期:1991-12-05
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  • 在线发布日期: 2014-12-01
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