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首页> 外文会议>Second International Conference on Wetlands amp; Remediation, Sep 5-6, 2001, Burlington, Vermont >TOTAL N, TOTAL P, AND ORGANIC MATTER CONTENT IN FLOODPLAIN SOILS IN XIANGHAI NATURAL RESERVE, CHINA
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TOTAL N, TOTAL P, AND ORGANIC MATTER CONTENT IN FLOODPLAIN SOILS IN XIANGHAI NATURAL RESERVE, CHINA

机译：湘海自然保护区洪泛土壤中总氮，总磷和有机质含量

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摘要

Soil sediment samples of 10 layers with 10cm per layer were collected in different floodplain zones adjacent to Huolin River in the Xianghai Natural Reserve, and content of Total N, Total P and Organic matters were analyzed. The analyzed data results show that content of Total N, Total P and Organic matters were generally decreased with length increase from sample location to the river channel, and content of the three items were generally higher in the upper soil layer than that in the lower soil layer. The content variation displayed how flooding functions influenced nutrient matters content variation in floodplain soils since the sample locations were under different flood inundation frequency. The correlation analysis displayed that there were remarkable relativity between total N, total P, and organic matter within definite spatial distance from the Huolin River channel. Floodplain is lowland area adjacent to rivers which subject to inundation during periodical floods. River and floodplain ecosysterm is one of the most significant intergrated physical geographical continuum in the earth (Bayley, 1995). Periodic flooding deposits sediments rich in nutrients onto floodplains and maintains nutrients and energy import of the floodplain ecosystems, and this guarantees high biodiversity in floodplain (Dengwei,et al,2000;Zhai Jinliang,et al, 2000). In semiarid areas, maintaining of floodplain ecoenvironmental health is definitely dependent on natural flooding regime (Hughes, 1990). There have long been studies about the functions of floodplains as ecotones to control large exchanges of nutrients and organic matter between aquatic and terrestrial ecosystems (Brinson, et al, 1983; Brinson, et al, 1984; Peterson, et al, 1982; Swanson, et al, 1982; Peterjohn, et al, 1984; Pinay, et al, 1988; Cristofor, et al, 1993). Day, F.P. and West,S.K showed that frequency, duration, and periodicity of floods appear to be the most important factors that influence the nutrient distribution structure and the floodplain ecosystem dynamics(Day, et al, 1988). However, quantified research about nutrients deposition law and content variation in floodplain soils is very limited (Day, et al, 1988; Clawson, et al, 1999; Baldwin, et al, 2000; Pinay, et al, 1992). In this paper, we will analyze and discuss spatial content variation of main nutrients including total N, total P, and organic matter in floodplain soils in the Xinaghai Natural Reserve of Huolin River, China.
机译：在向海自然保护区霍林河附近不同的洪泛区采集了10层，每层10cm的土壤沉积物样品，并对总氮，总磷和有机质含量进行了分析。分析数据结果表明，从采样点到河床的总长，总氮，总磷和有机质含量总体上呈下降趋势，上土层三者含量一般高于下土层。层。含量变化显示了洪水作用如何影响滩涂土壤中营养物质含量的变化，因为样品位置在不同的洪水淹没频率下。相关分析表明，在距霍林河航道一定的空间距离内，总氮，总磷和有机质之间存在显着的相关性。洪泛区是与河流相邻的低地地区，在周期性洪水中会泛滥成灾。河流和洪泛区生态系统术语是地球上最重要的综合物理地理连续体之一（Bayley，1995）。周期性的洪水将富营养素的沉积物沉积到洪泛区上，并维持洪泛区生态系统的营养和能量输入，这保证了洪泛区的生物多样性高（Dengwei，et al，2000； Zhai Jinliang，et al，2000）。在半干旱地区，洪泛区生态环境健康的维持绝对取决于自然洪涝状况（Hughes，1990）。长期以来，泛滥平原作为控制生态系统和水生生态系统之间的大量养分和有机物交换的过渡带的功能的研究（Brinson等，1983; Brinson等，1984; Peterson等，1982; Swanson，1982）。等人，1982； Peterjohn等，1984； Pinay等，1988； Cristofor等，1993）。天，F.P。 West，S.K指出，洪水的频率，持续时间和周期性似乎是影响养分分布结构和洪泛区生态系统动态的最重要因素（Day等，1988）。但是，关于洪泛区土壤养分沉积规律和含量变化的定量研究非常有限（Day等，1988； Clawson等，1999； Baldwin等，2000； Pinay等，1992）。在本文中，我们将分析和讨论霍林河新格海自然保护区洪泛区土壤中主要营养素（包括总氮，总磷和有机质）的空间含量变化。

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