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  • Origin and chronosequence of paddy soils in China.

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    Author(s) : Cao ZhiHongFu JianRongZou PingHuang JingFaLu HongWeng JiePingDing JinLong

    Author Affiliation : Institute of Soil Science, Chinese Academy of Sciences, Nanjing, China.

    Author Email : zhcao@issas.ac.cnfujr@mail.hz.zj.cnjxstz@126.comluhong@126.comjinglong-dd@hotmail.com

    Editors : Gilkes, R. J.Prakongkep, N.

    Conference paper : Proceedings of the 19th World Congress of Soil Science: Soil solutions for a changing world, Brisbane, Australia, 1-6 August 2010. Working Group 3.5 Paddy soils and water scarcity 2010 pp.39-42 ref.5

    Conference Title : Proceedings of the 19th World Congress of Soil Science: Soil solutions for a changing world, Brisbane, Australia, 1-6 August 2010.

    Abstract : The remains of nine ancient rice cultivationcultivationSubject Category: Techniques, Methodologies and Equipment
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    sites in the middle and lower reaches of Yangtze River were investigated. The remnants of 24 buried fields, each surrounded by ridges and irrigation ditches were discovered at 100 cm depth at the Chuodun site in Kunshan County, China. Many fossil rice grains and utensils, such as pottery vessels and jars, were found in these fields. The fossil rice grains and soil organic mattersoil organic matterSubject Category: Miscellaneous
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    were carbon dated and these fields were identified as the oldest irrigated rice paddy fields (6280 years BP) known today. It is suggested that the paddy soil developed at this site, at a depth of 100-200 cm was the first paddy soil in China. Based on our work a set of diagnostic criteria for distinguishing ancient paddy fields and soils was proposed. A chronosequence of paddy soilspaddy soilsSubject Category: Soil Typessoil typesSubject Category: Soil Types
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    , 50-2000 years BP, developed from the same parent material, under the same ecological conditions and similar cropping systems was found in the south bank of Hangzhou Bay (30°-30.5°N, 121°-122°E). Preliminary results showed that soil fertilitysoil fertilitySubject Category: Miscellaneous
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    and accumulation of organic carbon in the top layer of these paddy soils gradually increased with the extent of cultivation.

    URL : http://www.iuss.org/.../0884.pdf

    Record Number : 20123011310

    Publisher : International Union of Soil Sciences (IUSS), c/o Institut für Bodenforschung, Universität für Bodenkultur

    Location of publication : Wien

    Country of publication : Austria

    Language of text : English

    Indexing terms for this abstract:

    Descriptor(s) : baysbaysSubject Category: Topographic Features
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    , chronosequenceschronosequencesSubject Category: Miscellaneous
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    , cultivationcultivationSubject Category: Techniques, Methodologies and Equipment
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    , paddy soilspaddy soilsSubject Category: Soil Types
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    , soil fertilitysoil fertilitySubject Category: Miscellaneous
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    , soil organic mattersoil organic matterSubject Category: Miscellaneous
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    , soil typessoil typesSubject Category: Soil Types
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    Identifier(s) : Kiangsu, organic matter in soil, People's Republic of China

    Geographical Location(s) : ChinachinaSubject Category: Geographic Entities
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    , JiangsujiangsuSubject Category: Geographic Entities
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    Broader term(s) : APEC countriesapec countriesSubject Category: Institutions and Organisations
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    , Developing Countriesdeveloping countriesSubject Category: Miscellaneous
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    , East Asiaeast asiaSubject Category: Geographic Entities
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    , AsiaasiaSubject Category: Geographic Entities
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    , Eastern Chinaeastern chinaSubject Category: Geographic Entities
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    , ChinachinaSubject Category: Geographic Entities
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