珠江三角洲水稻土的形成发育
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THE FORMATION AND DEVELOPMENT OF PADDY SOILS ON ZHUJIANG DELTA
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    摘要:

    珠江三角洲是华南最大的三角洲平原,全国著名的水稻生产基地,其土壤的形成发育是与.三角洲的形成发展密切相关,并随其演变而不断演化。即泥滩生草或长红树林后,围垦种稻初期,形成沼泽型或酸性盐渍型、盐渍型水稻土,随着种稻时间的延伸,脱沼泽化、脱酸化、脱盐化作用的不断进行,发育成潜育型和潴育型水稻土。在此发育过程,肥力自然趋于下降,但人为的耕作、施肥水平是影响其肥力和发育方向的关键因素。

    Abstract:

    The formation and development of paddy soils in Zhujiang Delta is close related with the deposition and formation of the delta; with the enbankment beach land for planting rice,the soils is still under the condition of saliniiation and swamping,due to high salty ground-water table,and the swamping paddy soils are formed.Following the raising of land surfacc of polder fields and the lowering of the ground-water table,the eluviation-illuviation processes are weaker and plowpan is formed; thus the guyed paddy soils are formed.Through long term warping and applying muddy manure,the soil surface is further raised and the ground-water table is greatly lowered,the eluviation-illuviation processes are intensified; the periodically submergic paddy soils are formed.Of course,this is only the rough description of the formation processes on the delta,the human activity and cultivation practice are greatly affect the formation and fertility of the soils.

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刘腾辉.珠江三角洲水稻土的形成发育[J].土壤学报,1987,24(3):248-256. Liu Tenghui. THE FORMATION AND DEVELOPMENT OF PADDY SOILS ON ZHUJIANG DELTA[J]. Acta Pedologica Sinica,1987,24(3):248-256.

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  • 在线发布日期: 2013-02-25
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