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林草资源研究 ›› 2024›› Issue (5): 148-156.doi: 10.13466/j.cnki.lczyyj.2024.05.016

• 技术应用 • 上一篇    下一篇

基于InVEST模型的阿克苏柯柯牙生态系统碳储量评估分析

张兆祥1,2(), 罗青红2, 何苗2, 宁虎森2, 张志军3, 包强4, 孙倩1()   

  1. 1.新疆农业大学 林学与风景园林学院,乌鲁木齐 830052
    2.新疆林业科学院 造林治沙研究所,乌鲁木齐 830063
    3.阿克苏地区林业发展保障中心,新疆 阿克苏 842000
    4.阿克苏地区自然资源局,新疆 阿克苏 842000
  • 收稿日期:2024-08-02 修回日期:2024-10-08 出版日期:2024-10-28 发布日期:2025-04-18
  • 通讯作者: 孙倩,副教授,博士,主要研究方向为RS和GIS技术在资源环境中的应用。Email:sq061@163.com
  • 作者简介:张兆祥,硕士研究生,主要研究方向为干旱区生态修复的研究。Email:2268718249@qq.com
  • 基金资助:
    阿克苏地区自然资源局技术委托项目“阿克苏流域山水林田湖草沙一体化保护和修复工程关键问题和关键技术研究”(AKSSSXM2022620)

Assessment and Analysis of Carbon Storage in Aksu Kekeya Ecosystem Based on the InVEST Model

ZHANG Zhaoxiang1,2(), LUO Qinghong2, HE Miao2, NING Husen2, ZHANG Zhijun3, BAO Qiang4, SUN Qian1()   

  1. 1. College of Forestry and Landscape Architecture,Xinjiang Agricultural University,Urumqi 830052,China
    2. Institute of Afforestation and Sand Control,Xinjiang Academy of Forestry,Urumqi 830063,China
    3. Aksu area forestry development guarantee center,Aksu 842000,Xinjiang,China
    4. Aksu District Natural Resources Bureau,Aksu 842000,Xinjiang,China
  • Received:2024-08-02 Revised:2024-10-08 Online:2024-10-28 Published:2025-04-18

摘要: 生态系统碳储量是研究生态系统功能的重要指标,估算生态系统碳储量对维持区域碳平衡、区域生态修复及管理措施至关重要。为对比柯柯牙生态系统碳储量空间分布特征及其不同生态系统层次碳储量,基于2020年柯柯牙荒漠绿化工程区土地利用数据、森林资源清查数据和标准样地调查数据,利用InVEST模型Carbon模块对柯柯牙工程区生态系统碳储量进行评估。结果表明:1)柯柯牙工程区总碳密度为71.76 t/hm2,总碳储量为8.27×106 t。不同层生态系统碳储量表现为土壤碳储量(6.16×106 t)>地下生物碳储量(1.12×106 t)>地上生物碳储量(9.64×105 t)>死亡有机质碳储量(2.59×104 t);不同土地类型碳储量表现为林地(6.21×106 t)>耕地(9.82×105 t)>草地(5.56×105 t)>建设用地(3.69×105 t)>未利用土地(1.07×105 t)>水域(4.32×104 t)。2)柯柯牙工程区碳储量空间分布不均,总体表现为中部、东部和东南部区域最高,北部区域偏低,西南部区域最低。柯柯牙工程区地上生物层碳储量与地下生物层碳储量和土壤层碳储量均呈极显著正相关关系。柯柯牙工程区土壤层60 cm范围内的碳储量为6.16×106 t,占柯柯牙生态系统总碳储量的74.49%,表明土壤碳是柯柯牙工程区主要碳库。未来应通过增加林地面积及保护耕地的方式对该区域进行生态修复,从而提升柯柯牙生态系统稳定性与健康性,并为塔里木河流域生态修复工程提供新的方法和思路。

关键词: InVEST模型, 碳密度, 碳储量, 土壤碳, 柯柯牙

Abstract:

Ecosystem carbon storage is a key indicator of ecosystem function and plays a crucial role in maintaining regional carbon balance,guiding ecological restoration,and informing management strategies.This study aims to explore the spatial distribution characteristics of carbon storage in the Kekeya ecosystem and compare carbon storage across different ecosystem level susing 2020 land use data,forest inventory data,and standard plot survey data.Carbon storage in the Kekeya engineering area was assessed using the carbon module of the InVEST model.1)The total carbon density of the Kekeya engineering area is 71.76 t/hm2,with total carbon storage 8.27×106 t.Carbon storage across ecosystem levels is distributed as follows:soil carbon storage(6.16×106 t)>underground biological carbon storage(1.12×106 t)>above-ground biological carbon storage(9.64×105 t)>dead organic carbon storage(2.59×104 t).Carbon storage by land types is as follows:Forest land(6.21×106 t)>cultivated land(9.82×105 t)>grassland(5.56×105 t)>construction land(3.69×105 t)>unused land(1.07×105 t)>water area(4.32×104 t).2)Carbon storage in the Kekeya engineering area is spatially uneven,with the central,eastern and southeast regions exhibiting the highest storage,shows moderate storage,and the southwestern region has the lowest.Aboveground carbon storage in Kekeya engineering area is strongly positively correlated with the underground biomass layer and the soil carbon.The carbon storage within 60 cm of soil layer in the Kekeya engineering area are 6.16×106 t,accounting for 74.49% of the total carbon storage in the Kekeya ecosystem.Soil carbon is the main carbon pool in the Kekeya engineering area.Future ecological restoration efforts should prioritize expanding forested land and protecting cultivated land to enhance ecosystem stability and health in the Kekeya region.This approach provides valuable insights for designing ecological restoration projects in the Tarim River Basin.

Key words: InVEST model, carbon density, carbon storage, soil carbon, Kekeya

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