| 黄土高原旱作田土壤水分效应研究 |
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| 引用本文： | 仇化民.黄土高原旱作田土壤水分效应研究[J].资源科学,1995,17(4):46-51. |
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| 作者姓名： | 仇化民 |
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| 作者单位： | 甘肃西峰农业气象试验站，甘肃省气象局 |
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| 摘 要： | 在年降水量450-600mm的黄土高原旱作区，耕作土壤持水性好，渗透性强，具有显著的水分吐纳和调节功能，2m土层内可容纳550-600mm的水分，雨季降水是土壤水分补给的主要源泉，土壤蓄水量的高峰期和低谷期落后于降水的高峰和干旱少雨期。蓄水量低谷期出现在6月中旬，元月上旬前后是蓄水最稳定时期。
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| 关 键 词： | 降水 土壤水分 蓄水量 效应 |
A STUDY ON S0IL MOISTURE EFFECTS FOR DRY-LAND FARMING ON THE LOESS PLATEAU |
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| Qiu Huamin.A STUDY ON S0IL MOISTURE EFFECTS FOR DRY-LAND FARMING ON THE LOESS PLATEAU[J].Resources Science,1995,17(4):46-51. |
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| Authors: | Qiu Huamin |
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| Abstract: | n dry farming area with an annual precipitation of 450-600mm on the Loess Plateau, the tilled soil has high moisture-holding capacity, high infiltration rate, and obvious moisture input-output and regulation functions. About 550-600mm of water can be held in a 2-meter-thick soil layer' Rainy season precipitation serves as a principal source for soil water replenishment. Soil water storage in peak and Low-water season is inferior to peak period of precipitation and dry season with scarcy rainfall Low-water period of storage appears in the first ten days of June' The most stable period of water storage is around the first ten days of January |
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| Keywords: | Precipitationl Soil moisture Water storage Effect |
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