| 土壤耕层熟化度对水盐动态的影响 |
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| 引用本文： | 唐淑英,张丽君.土壤耕层熟化度对水盐动态的影响[J].土壤学报,1978,15(1):39-52. |
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| 作者姓名： | 唐淑英 张丽君 |
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| 作者单位： | 中国科学院南京土壤研究所;中国科学院南京土壤研究所 |
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| 摘 要： | 苏北滨海盐渍土地区,地势低平,地下水位高,矿化度大,排水深度有限,但雨量较多而较集中,有一定自然淋盐条件,因此,壤质地区的盐渍土,脱盐较容易,返盐亦很快,水盐动态变化频繁,防盐保苗困难,产量低而不稳.
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EFFECT OF THE DEVELOPMENT OF CULTURED HORIZON ON THE MOVEMENT OF SOIL WATER AND SOLUBLE SALTS OF THE SALINE SOILS IN COASTAL AREA,NORTHERN KIANGSU |
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| Tang Shu-ying and Chang Li-chun.EFFECT OF THE DEVELOPMENT OF CULTURED HORIZON ON THE MOVEMENT OF SOIL WATER AND SOLUBLE SALTS OF THE SALINE SOILS IN COASTAL AREA,NORTHERN KIANGSU[J].Acta Pedologica Sinica,1978,15(1):39-52. |
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| Authors: | Tang Shu-ying and Chang Li-chun |
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| Institution: | Nanking Institute of Soil Science, Academia Sinica;Nanking Institute of Soil Science, Academia Sinica |
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| Abstract: | Field observations and plot experiments revealed that a well developed plowed layer promoted the rate of desalinization of soils during the rainy season owing to its good permeability. While at the dry season,it facilitated the rate of evaporation of soil moisture and formed a dry mulch of a few em thick. The mulch reduced the rise of ground water from subsoil horizons and consequently kept the soil in a desalinized condition for a longer period. In a well cultivated soil,the annual rate of desalinization attained 30-50% within 1 meter in soil profile. |
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