Biological consequences of clear-cut logging around streams—Moderating effects of management

Ross Thompson, N. Phillips, C Townsend

    Research output: Contribution to journalArticle

    16 Citations (Scopus)

    Abstract

    Effects of riparian harvesting on in-stream biota were monitored in five streams in exotic conifer plantations that differed in how logs were extracted, patterns in deposition of woody debris, and the degree to which riparian buffers were retained. Streams were sampled on three occasions in summer, once prior to harvesting and twice afterwards. Consistent effects of harvesting included an increase in the amount of woody debris in the channel, increased fine sediment and a trend towards higher algal productivity. Invertebrate communities changed dramatically in some streams. General patterns included an increase in small sized taxa and taxa with generalist diets in the first year after harvest, then a trend towards a greater representation of grazers and larger taxa the following year. Responses in particular taxa were highly variable between streams. Some of this variability was related to forestry management, the least dramatic changes occurring where a narrow riparian buffer strip was retained. Reduced impacts were also observed in streams where woody debris was piled over the hannel. We suggest that management practices that maintain shading of the stream channel will moderate forestry effects, and that practices such as channel cleaning are likely to be detrimental.
    Original languageEnglish
    Pages (from-to)931-940
    Number of pages10
    JournalForest Ecology and Management
    Volume257
    DOIs
    Publication statusPublished - 2009

    Fingerprint

    logging
    woody debris
    riparian buffers
    forestry
    buffer zone
    stream channel
    stream channels
    shading
    generalist
    cleaning
    conifers
    coniferous tree
    effect
    biota
    management practice
    shade
    plantation
    plantations
    invertebrate
    invertebrates

    Cite this

    @article{ebe03d4b0ae7404982ad017ccb4d3bbf,
    title = "Biological consequences of clear-cut logging around streams—Moderating effects of management",
    abstract = "Effects of riparian harvesting on in-stream biota were monitored in five streams in exotic conifer plantations that differed in how logs were extracted, patterns in deposition of woody debris, and the degree to which riparian buffers were retained. Streams were sampled on three occasions in summer, once prior to harvesting and twice afterwards. Consistent effects of harvesting included an increase in the amount of woody debris in the channel, increased fine sediment and a trend towards higher algal productivity. Invertebrate communities changed dramatically in some streams. General patterns included an increase in small sized taxa and taxa with generalist diets in the first year after harvest, then a trend towards a greater representation of grazers and larger taxa the following year. Responses in particular taxa were highly variable between streams. Some of this variability was related to forestry management, the least dramatic changes occurring where a narrow riparian buffer strip was retained. Reduced impacts were also observed in streams where woody debris was piled over the hannel. We suggest that management practices that maintain shading of the stream channel will moderate forestry effects, and that practices such as channel cleaning are likely to be detrimental.",
    keywords = "Forestry, Riparian buffer, Species traits, New Zealand, Plantation",
    author = "Ross Thompson and N. Phillips and C Townsend",
    year = "2009",
    doi = "10.1016/j.foreco.2008.10.025",
    language = "English",
    volume = "257",
    pages = "931--940",
    journal = "Forest Ecology and Management",
    issn = "0378-1127",
    publisher = "Elsevier",

    }

    Biological consequences of clear-cut logging around streams—Moderating effects of management. / Thompson, Ross; Phillips, N.; Townsend, C.

    In: Forest Ecology and Management, Vol. 257, 2009, p. 931-940.

    Research output: Contribution to journalArticle

    TY - JOUR

    T1 - Biological consequences of clear-cut logging around streams—Moderating effects of management

    AU - Thompson, Ross

    AU - Phillips, N.

    AU - Townsend, C

    PY - 2009

    Y1 - 2009

    N2 - Effects of riparian harvesting on in-stream biota were monitored in five streams in exotic conifer plantations that differed in how logs were extracted, patterns in deposition of woody debris, and the degree to which riparian buffers were retained. Streams were sampled on three occasions in summer, once prior to harvesting and twice afterwards. Consistent effects of harvesting included an increase in the amount of woody debris in the channel, increased fine sediment and a trend towards higher algal productivity. Invertebrate communities changed dramatically in some streams. General patterns included an increase in small sized taxa and taxa with generalist diets in the first year after harvest, then a trend towards a greater representation of grazers and larger taxa the following year. Responses in particular taxa were highly variable between streams. Some of this variability was related to forestry management, the least dramatic changes occurring where a narrow riparian buffer strip was retained. Reduced impacts were also observed in streams where woody debris was piled over the hannel. We suggest that management practices that maintain shading of the stream channel will moderate forestry effects, and that practices such as channel cleaning are likely to be detrimental.

    AB - Effects of riparian harvesting on in-stream biota were monitored in five streams in exotic conifer plantations that differed in how logs were extracted, patterns in deposition of woody debris, and the degree to which riparian buffers were retained. Streams were sampled on three occasions in summer, once prior to harvesting and twice afterwards. Consistent effects of harvesting included an increase in the amount of woody debris in the channel, increased fine sediment and a trend towards higher algal productivity. Invertebrate communities changed dramatically in some streams. General patterns included an increase in small sized taxa and taxa with generalist diets in the first year after harvest, then a trend towards a greater representation of grazers and larger taxa the following year. Responses in particular taxa were highly variable between streams. Some of this variability was related to forestry management, the least dramatic changes occurring where a narrow riparian buffer strip was retained. Reduced impacts were also observed in streams where woody debris was piled over the hannel. We suggest that management practices that maintain shading of the stream channel will moderate forestry effects, and that practices such as channel cleaning are likely to be detrimental.

    KW - Forestry

    KW - Riparian buffer

    KW - Species traits

    KW - New Zealand

    KW - Plantation

    U2 - 10.1016/j.foreco.2008.10.025

    DO - 10.1016/j.foreco.2008.10.025

    M3 - Article

    VL - 257

    SP - 931

    EP - 940

    JO - Forest Ecology and Management

    JF - Forest Ecology and Management

    SN - 0378-1127

    ER -