粤东五华河悬浮颗粒有机质的组成及输出通量

张胜华; 高全洲; 陶贞; 解晨骥; 林培松; 张超; 何文芳

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粤东五华河悬浮颗粒有机质的组成及输出通量

研究论文 | 更新时间：2023-12-11

- 粤东五华河悬浮颗粒有机质的组成及输出通量
- Composition and Transported Fluxes of Riverine Particulate Organic Matter of the Wuhua River, East Guangdong Province, China
- 中山大学学报(自然科学版)(中英文) 2013年52卷第3期页码：143-148
- 作者机构：
  
  1. 中山大学地理科学与规划学院∥广东省城市化与地理环境空间模拟重点实验室,广东,广州,510275
  2. 
  3. 广东省水文局湛江水文分局,广东,湛江,524037
- 作者简介：
- 基金信息：
- DOI：
  中图分类号：
- 纸质出版日期：2013，
  
  网络出版日期：2013-5-25，
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张胜华, 高全洲, 陶贞, 等. 粤东五华河悬浮颗粒有机质的组成及输出通量[J]. 中山大学学报(自然科学版)(中英文), 2013,52(3):143-148.

Composition and Transported Fluxes of Riverine Particulate Organic Matter of the Wuhua River, East Guangdong Province, China[J]. Acta Scientiarum Naturalium Universitatis SunYatseni, 2013,52(3):143-148.
张胜华, 高全洲, 陶贞, 等. 粤东五华河悬浮颗粒有机质的组成及输出通量[J]. 中山大学学报(自然科学版)(中英文), 2013,52(3):143-148. DOI：

Composition and Transported Fluxes of Riverine Particulate Organic Matter of the Wuhua River, East Guangdong Province, China[J]. Acta Scientiarum Naturalium Universitatis SunYatseni, 2013,52(3):143-148. DOI：

摘要

河流碳输出过程构成全球碳循环的一个重要环节。基于一个完整水文年的月周期性采样分析，讨论了五华河径流中悬浮颗粒有机质（POM）的性质及其来源，估算了流域有机质的输出通量。结果表明：五华河径流中颗粒有机碳（POC）和颗粒有机氮（PON）的平均含量分别为0.77.mg/L和0.12 mg/L，其中汛期含量高于枯水期；五华河河流总悬浮颗粒物（TSS）、POC、PON含量以及河流颗粒有机质C/N比与流量的关系揭示五华河径流中POM主要源自流域土壤有机质的侵蚀，而且在迁移过程中受到水体微生物的分解；五华河流域POC和PON年输出通量分别为430 kg/〖DK〗(km

.a)和70 kg/〖DK〗(km

.a)，其中汛期POC和PON输出量分别占全年输出总量的74.23%和76.17%。

Abstract

Carbon transportation by river system constitutes a key link of the global carbon cycle. Based on monthly sampling and analysis of riverine particulate organic matter for a full hydrological year in the Wuhua River

eastern Guangdong Province

the characteristics and sources of particulate organic matter in the river were discussed and carbon transport fluxes were estimated. The results show that the average contents of particulate organic carbon (POC) and particulate organic nitrogen (PON) in the Wuhua River are 0.77 mg/L and 0.12mg/L

respectively

which are much higher during the flood season than those during the dry season. The relationships between discharge and the TSS

POC

PON contents

and the ratio of C to N reveal that the POM of the Wuhua River is mainly from soil organic matter within the drainage basin

which is decomposed by microorganisms during transportation. POC and PON fluxes exported by the Wuhua River are 430 kg/〖DK〗(km

.a) and 70 kg/〖DK〗(km

.a)

respectively. The output fluxes in the flood season account for 74.23% and 76.17% of the total annual output.

关键词

河流颗粒有机质C/N土壤侵蚀五华河

Keywords

riverine particulate organic matterC/N ratiosoil erosionthe Wuhua River

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