[1]田腾飞,刘梓珩,黄鹏,等.面向碳汇扩增的生态型城市水体沉水植物生长机制[J].中国给水排水,2025,41(17):106-112.
　TIANTeng-fei,LIUZi-heng,HUANGPeng,et al.Carbon Sink-driven Growth Dynamics of Submerged Macrophytes in Urban Ecological Water Bodies[J].China Water & Wastewater,2025,41(17):106-112.
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面向碳汇扩增的生态型城市水体沉水植物生长机制

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第41卷 期数: 2025年第17期 页码: 106-112 栏目: 出版日期: 2025-09-01
Title:
Carbon Sink-driven Growth Dynamics of Submerged Macrophytes in Urban Ecological Water Bodies
作者:
田腾飞1,2， 刘梓珩3， 黄鹏1,2， 孙永利1,2， 李檬1,2， 赵青1,2， 张岳1,2， 张玮嘉1,2， 冯天超1,2
（1.中国市政工程华北设计研究总院有限公司，天津 300074；2.天津市城镇排水系统重点实验室，天津 300074；3.南昌大学 化学化工学院，江西 南昌 330031）
Author(s):
TIAN　Teng-fei1，2， LIU　Zi-heng3， HUANG　Peng1，2， SUN　Yong-li1，2， LI　Meng1，2， ZHAO　Qing1，2， ZHANG　Yue1，2， ZHANG　Wei-jia1，2， FENG　Tian-chao1，2
（1. North China Municipal Engineering Design & Research Institute Co. Ltd.， Tianjin 300074， China； 2. Tianjin Key Laboratory of Urban Drainage System， Tianjin 300074， China； 3. School of Chemistry and Chemical Engineering， Nanchang University， Nanchang 330031， China）
关键词:
城市水体;  沉水植物;  碳汇当量;  种植密度;  生长温度
Keywords:
urban water body;  submerged macrophyte;  carbon sink equivalent;  plant density;  growth temperature
摘要:
水生植物尤其是沉水植物是城市水体的碳汇主体，研究生态型水体中沉水植物碳排-碳汇规律和管理模式，对合理估算水体碳汇当量和提高城市水体的碳汇能力有重要意义。为此，选择苦草和金鱼藻两种常见的沉水植物，采用静态箱法测定沉水植物在不同种植密度和生长温度条件下的CO2、CH4和N2O通量；根据气体的全球变暖潜能值（GWP）计算沉水植物产生的碳汇/碳排当量，并推导城市水体中沉水植物年度全生命周期碳汇/碳排当量。结果表明，在不同条件下，以苦草和金鱼藻为代表的沉水植物群落表现出不同的碳排和碳汇现象，碳汇当量最大种植密度为40 株/m2，最佳生长温度为25 ℃；在GWP指数为25年尺度下，苦草群落在最佳种植密度和生长温度条件下的碳汇当量为5 445.48 mg/（m2·a），金鱼藻群落则为1 305.02 mg/（m2·a）。
Abstract:
Aquatic plants, particularly submerged macrophytes, serve as the primary carbon sink in urban water bodies. Investigating the patterns of carbon emission and carbon sink, as well as the management modes of submerged macrophytes in ecological water bodies, is of significant importance for accurately estimating the carbon sink equivalents of water bodies and enhancing their overall carbon sink capacity. In this study, two commonly occurring submerged macrophytes, Vallisneria natans and Ceratophyllum demersum, were selected. The fluxes of CO2, CH4, and N2O associated with these submerged macrophytes were measured under varying plant densities and growth temperatures using the static chamber method. Based on the global warming potential (GWP) of each gas, the carbon sink and emission equivalents were calculated. These values were then used to estimate the annual net carbon sink and emission equivalents over the full life cycle of submerged macrophytes in urban water bodies. Under varying conditions, two types of submerged macrophyte communities exhibited distinct patterns of carbon emission and carbon sink. The maximum carbon sink equivalent was achieved at a plant density of 40 plant/m2, with an optimal growth temperature of 25 ℃. Based on a GWP index over a 25-year time horizon, the carbon sink capacity of the Vallisneria natans?dominated community under optimal conditions was measured at 5 445.48 mg/(m2·a), whereas that of the Ceratophyllum demersum-dominated community was 1 305.02 mg/(m2·a).

相似文献/References:

[1]李檬,田腾飞,黄鹏,等.沉水植物引发水体DO与ORP负相关变化：现象与机制[J].中国给水排水,2025,41(23):1.
　LIMeng,TIANTeng-fei,HUANGPeng,et al.Submerged Macrophytes Induced Negative Variation between Dissolved Oxygen and Oxidation-Reduction Potential in Water: Phenomenon and Mechanism Exploration[J].China Water & Wastewater,2025,41(17):1.

更新日期/Last Update: 2025-09-01