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本文对淹水稻田生态系统的一些生物学概念和研究成果进行了综述。淹水稻田是一个人工生态系统,因农业活动的影响而具有极端的不稳定性,从而抑制了其向沼泽化方向的演替,并使得湖沼学家和生态学家很难对其进行定量的研究。对淡水生态系统(如湖泊、池塘)的研究,有助于认识淹水稻田,但不能简单地推论。在多数农学、化学、土壤学的研究中,都忽视了淹水层,而是强调它对淹水水稻土肥力及其它性质的影响。本文评述了淹水层和土壤中的主要生物活动;养分循环;以及淹水层与土壤层之间的相互作用。
In this paper, some biological concepts and research results of flooded paddy ecosystems are reviewed. It is a flooded paddy artificial ecosystem, due to the influence of agricultural activities and with extreme instability, thereby inhibiting their successional direction of the swamp, lake and scientists and so difficult to make quantitative ecologists the study. Studies of freshwater ecosystems (such as lakes and ponds) help to understand flooded paddy fields, but can not be easily inferred. In most agronomic, chemical, and pedological studies, flooded layers have been neglected, but their impact on the fertility and other properties of flooded paddy soils has been underscored. This article reviews the major biological activities in flooded and soil layers; nutrient cycling; and the interactions between flooded and soil layers.