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应用生态学报 ›› 2025, Vol. 36 ›› Issue (3): 828-836.doi: 10.13287/j.1001-9332.202503.030

• 研究论文 • 上一篇    下一篇

黑龙江省陆地生态系统固碳能力及气候影响评估

于敏1, 贾小龙2*, 薄宇1, 程春香1, 阮多1, 秦云2, 王营3   

  1. 1黑龙江省生态气象中心, 哈尔滨 150030;
    2国家气候中心, 北京 100081;
    3黑龙江省气候中心, 哈尔滨 150030
  • 收稿日期:2024-08-28 接受日期:2025-01-17 出版日期:2025-03-18 发布日期:2025-05-15
  • 通讯作者: * E-mail: jiaxl@cma.gov.cn
  • 作者简介:于 敏, 女, 1975年, 博士, 正研级高级工程师。主要从事生态气象与卫星遥感技术研究。E-mail: 13495139@qq.com
  • 基金资助:
    温室气体及碳中和监测评估创新团队、中国气象局创新发展专项(CXFZ2022J041,CXFZ2024J052)和国家重点研发计划项目(2023YFC3007700)

Carbon sink capacity and climate impact assessment of terrestrial ecosystems in Heilongjiang Province

YU Min1, JIA Xiaolong2*, BO Yu1, CHENG Chunxiang1, RUAN Duo1, QIN Yun2, WANG Ying3   

  1. 1Heilongjiang Ecological Meteorological Center, Harbin 150030, China;
    2National Climate Center, Beijing 100081, China;
    3Heilongjiang Climate Center, Harbin 150030, China
  • Received:2024-08-28 Accepted:2025-01-17 Online:2025-03-18 Published:2025-05-15

摘要: 黑龙江省陆地生态系统固碳能力较强且易受气候变化影响,分析该区域陆地生态系统碳收支的时空格局及气候变化影响,对提升黑龙江省生态系统固碳功能具有重要意义。本研究基于1961—2022年气候数据和叶面积指数数据,采用生态系统碳循环BEPS模型,定量模拟黑龙江省陆地生态系统净初级生产力(NPP)和净生态系统生产力(NEP),并进行气候影响评估。结果表明: BEPS模型能够模拟黑龙江省固碳能力。1961—2022年,研究区植被固碳能力增强,其中,NPP年均增加1.5 g C·m-2,2010年之后增强趋势更显著,年均增加7.5 g C·m-2,森林生态系统固碳能力最强,农田生态系统固碳能力增长最显著。在气候变暖的背景下,最低温度、降水量和风速显著影响黑龙江省固碳能力,其中,降水量是最主要的影响因子。研究期间,降水与黑龙江省固碳量的相关系数总体增加,且相对贡献率最高,为46.1%,降水对于植被NEP的相对贡献率为67.1%。

关键词: 陆地生态系统, BEPS模型, 净初级生产力, 净生态系统生产力, 气候影响评估

Abstract: Terrestrial ecosystems in Heilongjiang Province have strong carbon sequestration capacity but vulnerable to climate change. Analyzing the spatio-temporal variations of carbon budget of terrestrial ecosystems in this region and the impacts of climate change is of great significance for improving ecosystem carbon sequestration in Heilongjiang Province. Based on 1961-2022 climate data and leaf area index data, we adopted the ecosystem carbon cycle BEPS model to quantitatively simulate the net primary productivity (NPP) and net ecosystem productivity (NEP) of terrestrial ecosystems in Heilongjiang Province, and assessed the climate impact. The results showed that the BEPS model could simulate carbon sequestration capacity of Heilongjiang Province. From 1961 to 2022, ecosystem carbon sequestration capacity in the study area increased. NPP increased by 1.5 g C·m-2·a-1 on average, and the increase trend was more significant after 2010 with an annual rate of 7.5 g C·m-2. Forest carbon sequestration capacity was the strongest, and the increment of carbon sequestration capacity of farmland ecosystem was the most significant. In the context of climate warming, the minimum temperature, precipitation, and wind speed significantly affected carbon sequestration capacity, with precipitation being the most important factor. During the study period, the correlation coefficient between precipitation and carbon sequestration in Heilongjiang Province increased overall, and the relative contribution rate was the highest, accounting for 46.1%. The relative contribution rate of precipitation to vegetation NEP was 67.1%.

Key words: terrestrial ecosystem, BEPS model, net primary productivity, net ecosystem productivity, climate impact assessment