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中国农学通报

中国农学通报 ›› 2025, Vol. 41 ›› Issue (14): 157-164.doi: 10.11924/j.issn.1000-6850.casb2024-0554

• 水产·渔业 • 上一篇    

基于地球化学分析广西柳州人工养殖螺蛳壳体品质与碳汇

王辉1(), 卢安康1, 彭金霞3, 周李柳2, 王志强2, 文衍红2(), 周立坚1, 闭忠敏4, 廖家隆1, 周立满5   

  1. 1 中国煤炭地质总局广西煤炭地质局，南宁 530299
    2 柳州市渔业技术推广站，广西柳州 545005
    3 广西水产科学研究院，南宁 530021
    4 广西二一五地质队有限公司，广西柳州 545006
    5 东南大学，南京 210096
  • 收稿日期:2024-09-02 修回日期:2025-01-07 出版日期:2025-05-15 发布日期:2025-05-14
  • 通讯作者:
    文衍红，男，1968年出生，广西灌阳人，推广研究员，研究方向：渔业技术研究与推广。通信地址：545005 柳州市晨华路6号 柳州市渔业技术推广站，Tel：0772-2628463，E-mail：。
  • 作者简介:

    王辉，男，1971年出生，陕西澄城人，正高级工程师，研究方向：基础地质、矿产地质、地球化学。通信地址：530299 广西壮族自治区南宁市新邕路169号，Tel：0771-5836609，E-mail：。

  • 基金资助:
    国家重点研发计划“中华绒螯蟹、克氏原螯虾、螺蛳大规格抗逆新品种培育”(2022YFD2400700); 广西自然科学基金项目面上项目“桂中坳陷晚二叠世煤盆地隐伏地热水文地球化学研究与找矿靶区圈定”(2022GXNSFAA035576); 柳州市科协软课题项目“柳州人工养殖螺蛳壳品质与固碳强度精细地球化学研究”(柳科协软20230115号); 中国煤炭地质总局重大科技专项“揭榜挂帅”项目“非煤矿山（铅锌矿、硫铁矿）尾矿库灾害治理技术研究”(ZMKJ-2023-JBGS02-03)

Shell Quality and Carbon Sink of Cultured Snails Based on Geochemical Analysis in Liuzhou of Guangxi

WANG Hui1(), LU Ankang1, PENG Jinxia3, ZHOU Liliu2, WANG Zhiqiang2, WEN Yanhong2(), ZHOU Lijian1, BI Zhongmin4, LIAO Jialong1, ZHOU Liman5   

  1. 1 Guangxi Administration of Coal Geology, Nanning 530299
    2 Liuzhou Fishery Technical Extension Station, Liuzhou, Guangxi 545005
    3 Guangxi Academy of Fishery Sciences, Nanning 530021
    4 Guangxi Geological Team No.215 Co., Ltd., Liuzhou, Guangxi 545006
    5 Southeast Universty, Nanjing 210096
  • Received:2024-09-02 Revised:2025-01-07 Published:2025-05-15 Online:2025-05-14

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摘要：

为探究人工养殖螺蛳壳体品质与地质背景的关系，助力广西柳州螺蛳粉产业健康发展，选取柳州北部变质岩区、中部白云岩区和南部灰岩区的3个人工螺蛳养殖基地，于2023年9—12月，分别采集螺蛳、养殖水体、地下水水体、底部腐泥、基岩的样品，对相关元素进行测试分析，开展螺壳机械强度与养殖基地地球化学背景的定性分析和螺蛳固碳效益估算。结果显示：水体中Ca2+、Mg2+、HCO3－和pH、fCO2数值的高低，影响螺蛳壳体中方解石晶体的建造与腐蚀，使得壳体机械强度不同或被侵蚀，可以通过调节水体中Ca2+、Mg2+、HCO3－含量，提高人工养殖螺蛳的壳体品质。螺壳CaCO3含量平均值92.76%，CO2含量平均40.81%，以人工养殖螺蛳2.6万t/a估算，可以固碳0.37万t，碳汇交易额可达26.68万元。水体中Ca2+和pH、fCO2数值的高低与螺体品质直接相关，养殖螺蛳碳汇属于生物质能碳捕集与封存的碳移除技术范畴，可申请碳交易。研究发现，螺壳体品质与螺池所在地的基岩地球化学成分密切相关，有助于人工养殖螺蛳基地的选择。研究填补了螺蛳的生长与地球化学背景相关领域的空白，以期为淡水养殖贝类、壳类碳汇交易提供一定的理论支持。

关键词: 石螺和田螺, 人工养殖螺蛳, 螺壳固碳, 地球化学组成, 螺壳品质, 碳交易, 螺蛳粉产业, 广西柳州

Abstract:

To help the healthy development of Liuzhou snail rice noodle in Guangxi, the shell quality and carbon sequestration effect and benefit of artificially bred snail were studied based on geochemical theory and technology. Using snail and field snail from Liuzhou snail breeding base as test materials, Ca2+, Mg2+, HCO3- and other data were tested to analyze the coupling relationship between shell quality and carbon sink and geological background. The values of Ca2+, Mg2+, HCO3-, pH and fCO2 in water can affect the construction and corrosion of calcite crystals in the shell of snails, making the shell mechanical strength different or eroded. The shell quality of artificially bred snails can be improved by adjusting the contents of Ca2+, Mg2+ and HCO3- in water, with the average content of CaCO3 and CO2 of 92.76% and 40.81% respectively, according to the estimation of 26000 t/a of artificially cultured snails, 3700 t of carbon can be fixed and the carbon sink transaction volume can reach 266800 yuan. The values of Ca2+, pH and fCO2 in water body are directly related to the quality of snails. The carbon sink of cultured snails belongs to the carbon removal technology category of biomass energy carbon capture and storage, and can apply for carbon trading.

Key words: snail and field snail, cultured snail, shell carbon fixation, geochemical composition, shell quality, carbon trading, snail rice noodle industry, Liuzhou of Guangxi