{
  "abstract": "Permafrost in the Qilian Mountains is highly sensitive to climate change, affecting ecosystem energy, water, and carbon cycling. Using MODIS data and the self-calibrated Palmer Drought Severity Index (scPDSI), we analyzed WUE dynamics and drought responses in permafrost and seasonally frozen soil regions during 2001-2020. WUE showed an overall gradual decline and an intra-annual increase-decrease-increase pattern, with growth rates peaking in November and the lowest values occurring in June. A threshold of 0.6 gC m-2 mm-1 demarcated the two frozen-soil types. Delayed drought responses occurred in 50.77% of vegetation, with a mean lag of 6.82 months; seasonally frozen soil mainly showed non-lagged and long-term responses, whereas permafrost mainly showed non-lagged and short-term responses. Cumulative effects affected 40.49% of vegetation, with a mean duration of 5.06 months. These findings provide a mechanistic basis for understanding drought impacts on vegetation WUE across contrasting frozen-soil environments.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": "Article",
  "arxiv": null,
  "author_total": 9,
  "authors": [
    {
      "name": "Lili Li"
    },
    {
      "name": "Yu Guo"
    },
    {
      "name": "Yao Zhang"
    },
    {
      "name": "Duni Jia"
    },
    {
      "name": "Jia Du"
    },
    {
      "name": "Yong Gu"
    },
    {
      "name": "Tianxu Luo"
    },
    {
      "name": "Jinshan Li"
    },
    {
      "name": "Dawei Wang"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/c0kgs4hjbch0b.bib",
  "cited_by": 0,
  "doi": "10.1016/j.isci.2026.117973",
  "fulltext_url": "https://europepmc.org/articles/PMC13742856",
  "id": "c0kgs4hjbch0b",
  "issns": [
    "2589-0042"
  ],
  "landing_url": "https://www.cell.com/iscience/fulltext/S2589-0042(26)03356-0",
  "language": "eng",
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "heading",
      "Earth-surface processes"
    ],
    [
      "heading",
      "Environmental science"
    ],
    [
      "heading",
      "Global change"
    ],
    [
      "heading",
      "Hydrology"
    ],
    [
      "heading",
      "Soil hydrology"
    ],
    [
      "heading",
      "Soil science"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://europepmc.org/articles/PMC13742856?pdf=render",
  "pmcid": "PMC13742856",
  "pmid": "42997834",
  "published": "2026-10-29",
  "publisher": "Elsevier BV",
  "ris": "https://research.draconitic.com/paper/c0kgs4hjbch0b.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:16Z",
      "native_id": "10.1016/j.isci.2026.117973",
      "source": "feed-cell",
      "url": "https://www.cell.com/iscience/fulltext/S2589-0042(26)03356-0"
    },
    {
      "first_seen": "2026-10-30T12:17:49Z",
      "native_id": "10.1016/j.isci.2026.117973",
      "source": "crossref",
      "url": "https://linkinghub.elsevier.com/retrieve/pii/S2589004226033560"
    },
    {
      "first_seen": "2026-11-09T15:20:34Z",
      "native_id": "MED:42997834",
      "source": "europepmc",
      "url": "https://europepmc.org/article/MED/42997834"
    }
  ],
  "subjects": [
    {
      "field": "earth",
      "origin": "heading:Hydrology",
      "subfield": "hydrology-soils"
    }
  ],
  "title": "The lagged and cumulative effects of permafrost and seasonally frozen soil on water use efficiency in the Qilian Mountains, Northwest China",
  "title_text": "The lagged and cumulative effects of permafrost and seasonally frozen soil on water use efficiency in the Qilian Mountains, Northwest China",
  "type": "peer-reviewed",
  "updated_at": "2026-11-09T15:20:34Z",
  "url": "https://research.draconitic.com/paper/c0kgs4hjbch0b",
  "venue": "iScience",
  "versions": []
}