Alistar I. Robertson, Irena Zagorskis, Murray Logan, Paul Dixon, Paul Daniel
{"title":"混交种红树林中木菠萝的森林结构、树木生长和木材产量的环境预测因素","authors":"Alistar I. Robertson, Irena Zagorskis, Murray Logan, Paul Dixon, Paul Daniel","doi":"10.1071/mf23246","DOIUrl":null,"url":null,"abstract":"<strong> Context</strong><p>Restored mangrove forests are threatened by the restricted range of species used. <i>Xylocarpus granatum</i> has excellent timber and could add value in mangrove plantings.</p><strong> Methods</strong><p>Forest structure and environmental variables were measured at 40 sites in northern Australia and Papua New Guinea. Tree growth was measured at 18 sites. Boosted regression tree modelling identified environmental predictor variables for above-ground biomass for <i>X. granatum</i> (AGB<sub>X</sub>), mean annual increment in diameter at breast height (DBH) for <i>X. granatum</i> (MAI<sub>X</sub>) and wood production (<i>P</i><sub>W</sub>).</p><strong> Aims</strong><p>To determine the environmental conditions under which <i>X. granatum</i> has the greatest biomass and growth.</p><strong> Key results</strong><p>Increasing stem density, basal area and AGB of other tree species were most important in limiting AGB<sub>X</sub>. MAI<sub>X</sub> (range 0.03–0.55 cm year<sup>−1</sup>) was greatest when sediment redox potential was >100 mV and mean annual catchment rainfall was >4000 mm. MAI<sub>X</sub> increased with an increasing mean minimum air temperature and sediment percentage silt and percentage phosphorus. <i>P</i><sub>W</sub> declined with the stem density of all species and increased with an increasing percentage silt and when sediment redox potential was >180 mV.</p><strong> Conclusions and implications</strong><p>Under optimal conditions, <i>X. granatum</i> grows as fast as most mangrove species and could make an excellent, harvestable addition to the species mix used in restoration projects.</p>","PeriodicalId":18209,"journal":{"name":"Marine and Freshwater Research","volume":"26 1","pages":""},"PeriodicalIF":1.8000,"publicationDate":"2024-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Environmental predictors of forest structure, tree growth and wood production for Xylocarpus granatum in mixed-species mangrove forests\",\"authors\":\"Alistar I. Robertson, Irena Zagorskis, Murray Logan, Paul Dixon, Paul Daniel\",\"doi\":\"10.1071/mf23246\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<strong> Context</strong><p>Restored mangrove forests are threatened by the restricted range of species used. <i>Xylocarpus granatum</i> has excellent timber and could add value in mangrove plantings.</p><strong> Methods</strong><p>Forest structure and environmental variables were measured at 40 sites in northern Australia and Papua New Guinea. Tree growth was measured at 18 sites. Boosted regression tree modelling identified environmental predictor variables for above-ground biomass for <i>X. granatum</i> (AGB<sub>X</sub>), mean annual increment in diameter at breast height (DBH) for <i>X. granatum</i> (MAI<sub>X</sub>) and wood production (<i>P</i><sub>W</sub>).</p><strong> Aims</strong><p>To determine the environmental conditions under which <i>X. granatum</i> has the greatest biomass and growth.</p><strong> Key results</strong><p>Increasing stem density, basal area and AGB of other tree species were most important in limiting AGB<sub>X</sub>. MAI<sub>X</sub> (range 0.03–0.55 cm year<sup>−1</sup>) was greatest when sediment redox potential was >100 mV and mean annual catchment rainfall was >4000 mm. MAI<sub>X</sub> increased with an increasing mean minimum air temperature and sediment percentage silt and percentage phosphorus. <i>P</i><sub>W</sub> declined with the stem density of all species and increased with an increasing percentage silt and when sediment redox potential was >180 mV.</p><strong> Conclusions and implications</strong><p>Under optimal conditions, <i>X. granatum</i> grows as fast as most mangrove species and could make an excellent, harvestable addition to the species mix used in restoration projects.</p>\",\"PeriodicalId\":18209,\"journal\":{\"name\":\"Marine and Freshwater Research\",\"volume\":\"26 1\",\"pages\":\"\"},\"PeriodicalIF\":1.8000,\"publicationDate\":\"2024-05-31\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Marine and Freshwater Research\",\"FirstCategoryId\":\"93\",\"ListUrlMain\":\"https://doi.org/10.1071/mf23246\",\"RegionNum\":4,\"RegionCategory\":\"环境科学与生态学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"FISHERIES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Marine and Freshwater Research","FirstCategoryId":"93","ListUrlMain":"https://doi.org/10.1071/mf23246","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"FISHERIES","Score":null,"Total":0}
Environmental predictors of forest structure, tree growth and wood production for Xylocarpus granatum in mixed-species mangrove forests
Context
Restored mangrove forests are threatened by the restricted range of species used. Xylocarpus granatum has excellent timber and could add value in mangrove plantings.
Methods
Forest structure and environmental variables were measured at 40 sites in northern Australia and Papua New Guinea. Tree growth was measured at 18 sites. Boosted regression tree modelling identified environmental predictor variables for above-ground biomass for X. granatum (AGBX), mean annual increment in diameter at breast height (DBH) for X. granatum (MAIX) and wood production (PW).
Aims
To determine the environmental conditions under which X. granatum has the greatest biomass and growth.
Key results
Increasing stem density, basal area and AGB of other tree species were most important in limiting AGBX. MAIX (range 0.03–0.55 cm year−1) was greatest when sediment redox potential was >100 mV and mean annual catchment rainfall was >4000 mm. MAIX increased with an increasing mean minimum air temperature and sediment percentage silt and percentage phosphorus. PW declined with the stem density of all species and increased with an increasing percentage silt and when sediment redox potential was >180 mV.
Conclusions and implications
Under optimal conditions, X. granatum grows as fast as most mangrove species and could make an excellent, harvestable addition to the species mix used in restoration projects.
期刊介绍：
Marine and Freshwater Research is an international and interdisciplinary journal publishing contributions on all aquatic environments. The journal’s content addresses broad conceptual questions and investigations about the ecology and management of aquatic environments. Environments range from groundwaters, wetlands and streams to estuaries, rocky shores, reefs and the open ocean. Subject areas include, but are not limited to: aquatic ecosystem processes, such as nutrient cycling; biology; ecology; biogeochemistry; biogeography and phylogeography; hydrology; limnology; oceanography; toxicology; conservation and management; and ecosystem services. Contributions that are interdisciplinary and of wide interest and consider the social-ecological and institutional issues associated with managing marine and freshwater ecosystems are welcomed.
Marine and Freshwater Research is a valuable resource for researchers in industry and academia, resource managers, environmental consultants, students and amateurs who are interested in any aspect of the aquatic sciences.
Marine and Freshwater Research is published with the endorsement of the Commonwealth Scientific and Industrial Research Organisation (CSIRO) and the Australian Academy of Science.
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