Effects of Drainage Ditches on Biogeochemical Cycling in Wetland－Taking Wetlands in the Sanjiang Plain as an Example

XI Min; LU Xian-guo

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Effects of Drainage Ditches on Biogeochemical Cycling in Wetland－Taking Wetlands in the Sanjiang Plain as an Example

- Effects of Drainage Ditches on Biogeochemical Cycling in Wetland－Taking Wetlands in the Sanjiang Plain as an Example
- Bulletin of Soiland Water Conservation Vol. 25, Issue 5, Pages: 43-45(2006)
- 作者机构：
  
  1. 中国科学院东北地理与农业生态研究所,吉林,长春,130012
  2. 中国科学院研究生院,北京,100039
- 作者简介：
- 基金信息：
- DOI：
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- Published：2006
- 稿件说明：
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XI Min, LU Xian-guo. Effects of Drainage Ditches on Biogeochemical Cycling in Wetland－Taking Wetlands in the Sanjiang Plain as an Example[J]. Bulletin of Soiland Water Conservation, 2006, 25(5): 43-45.
DOI：

XI Min, LU Xian-guo. Effects of Drainage Ditches on Biogeochemical Cycling in Wetland－Taking Wetlands in the Sanjiang Plain as an Example[J]. Bulletin of Soiland Water Conservation, 2006, 25(5): 43-45. DOI：

摘要

湿地有其独特的生物地球化学循环，其间许多化学迁移和转化过程不为其它生态系统所共享。沟渠的修建改变了湿地的水文状况，因此影响了湿地的生物地球化学循环。以三江平原湿地为例，从沟渠对湿地化学元素迁移转化、湿地化学元素输入输出和湿地化学质量平衡影响方面分析了沟渠对湿地生物地球化学循环的影响。结果显示，沟渠的修建导致湿地大量化学元素丧失，湿地化学质量失衡，最终引起湿地退化。

Abstract

Wetlands have unique biogeochemical cycles with many chemical transformations and chemical transport processes that are not shared饰many other ecosystems. The construction of irrigation ditches in wetland changes the hydrology state

and thus influences the biological geochemistry circulation. In order to understand the effects of drainage ditches on the biogeochemical cycling in wetland

this paper takes the Sanjiang Plain as an example

and makes a detail introduction to the impacts of drainage ditches on the characteristics of movement

transformation

inputs and outputs of chemical elements and on the chemical mass balance. Results show that a lot of chemical elements are lost because of draining

which causes the degeneration of wetland.

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