| 吴汉洲,刘棋,陈健,李明,朱宁远,汪宜敏.中国农用地微塑料分布及其对土壤环境质量影响的Meta分析[J].农业环境科学学报,2025,44(5):1312-1322. |
| 中国农用地微塑料分布及其对土壤环境质量影响的Meta分析 |
| Meta-analysis of the distribution of microplastics on agricultural land in China and their impact on soil environmental quality |
| 投稿时间：2024-04-21 |
| DOI：10.11654/jaes.2024-0339 |
| 中文关键词: 农用地 微塑料 土壤性质 酶活性 Meta分析 |
| 英文关键词: agricultural land microplastics soil properties enzyme activity Meta-analysis |
| 基金项目:国家自然科学基金项目（41601540，42007018） |
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| 中文摘要: |
| 为综合评估土壤微塑料（MPs）对我国农用地土壤质量的影响程度，本研究筛选出58篇关于我国农用土壤中MPs分布特征影响土壤性质（物理、化学和酶活性）的762组数据，并进行了Meta整合分析。结果表明：我国不同地区农用地土壤中的MPs丰度值和粒径水平存在差异；MPs丰度值大小呈现大棚>果园>农田>菜地，但表层和深层土壤中MPs的丰度值差异不明显。较高含量（>5%）MPs污染时，土壤pH显著下降，而溶解性有机质（DOC）和无机磷（IP）含量则显著升高（P<0.05）；较小粒径（≤0.5 mm）的MPs污染土壤中IP含量和过氧化氢酶（CAT）、脲酶（Ure）活性均显著升高（P<0.05）。MPs污染实验在≤30 d时，土壤的IP含量和CAT、Ure酶活性均显著升高（P<0.05）；实验时间>60 d的土壤中硝态氮（NO3--N）含量显著下降（P<0.001），CAT酶活性显著上升（P<0.001）。Pearson分析发现MPs的含量和粒径显著影响了土壤化学性质如DOC、IP和NO3--N含量（P<0.05），且粒径与土壤CAT和Ure酶活性之间存在显著相关性（r>0.30，P<0.05）。由此可见，我国农用地土壤MPs的污染现状较为严重，MPs能够通过直接或间接的途径影响土壤质量和养分元素有效性。 |
| 英文摘要: |
| To comprehensively assess the extent to which soil microplastic（MPs）affect soil quality on agricultural land in China. The paper screened 762 sets of data from 58 articles on the distribution characteristics of MPs in agricultural soils in China affecting soil properties（physical, chemical and enzyme activities）and performed Meta - integration analyses. The results showed that there were differences in the abundance values and particle size levels of MPs in agricultural soils in different regions of China; the size of MPs abundance values showed greenhouses>orchards>farmland>vegetable land, but the differences in the abundance values of MPs between surface and deep soils were not obvious. Soil pH decreased significantly, while dissolved organic matter（DOC）and inorganic phosphorus （IP）content increased significantly（P<0.05）in higher MPs（>5%）contamination; IP content, catalase（CAT）and urease（Ure）activities increased significantly（P<0.05）in MPs-contaminated soils with smaller particle sizes（≤0.5 mm）. MPs-contamination experiments were conducted between IP content, CAT and Ure enzyme activities were significantly higher（P<0.05）from 0 to 30 days, while nitrate nitrogen （NO3--N）content was significantly lower（P<0.001）and CAT enzyme activity was significantly higher（P<0.001）for experiments longer than 60 days. Pearson's analysis revealed that the content and particle size of MPs significantly affected soil chemical properties such as DOC, IP and NO3- -N content（P<0.05）, and there was a significant correlation between the particle size and soil CAT and urease activities （r>0.30, P<0.05）. It can be seen that the pollution status of MPs in agricultural soils in China is serious, and MPs can affect soil quality and nutrient effectiveness through direct or indirect pathways, and the research and management of MPs in agricultural soils need to be promoted urgently. |
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