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| 1 | Mapping aboveground biomass and its prediction uncertainty using LiDAR and field data, accounting for tree-level allometric and LiDAR model errors显示文摘Background: The increasing availability of remotely sensed data has recently challenged the traditional way of performing forest inventories, and induced an interest in model-based inference. Like traditional design-based inference, model-based inference allows for regional estimates of totals and means, but in addition for wall-to-wall mapping of forest characteristics. Recently Light Detection and Ranging(LiDAR)-based maps of forest attributes have been developed in many countries and been well received by users due to their accurate spatial representation of forest resources. However, the correspondence between such mapping and model-based inference is seldom appreciated. In this study we applied hierarchical model-based inference to produce aboveground biomass maps as well as maps of the corresponding prediction uncertainties with the same spatial resolution. Further, an estimator of mean biomass at regional level, and its uncertainty, was developed to demonstrate how mapping and regional level assessment can be combined within the framework of model-based inference.Results: Through a new version of hierarchical model-based estimation, allowing models to be nonlinear, we accounted for uncertainties in both the individual tree-level biomass models and the models linking plot level biomass predictions with LiDAR metrics. In a 5005 km2 large study area in south-central Sweden the predicted aboveground biomass at the level of 18 m×18 m map units was found to range between 9 and 447 Mg·ha^-1. The corresponding root mean square errors ranged between 10 and 162 Mg·ha^-1. For the entire study region, the mean aboveground biomass was 55 Mg·ha^-1 and the corresponding relative root mean square error 8%. At this level 75%of the mean square error was due to the uncertainty associated with tree-level models.Conclusions: Through the proposed method it is possible to link mapping and estimation within the framework of model-based inference. Uncertainties in both tree-level biomass models and models linking plot level biomass with LiDAR data are accounted for, both for the uncertainty maps and the overall estimates. The development of hierarchical model-based inference to handle nonlinear models was an important prerequisite for the study. | Svetlana Saarela AndréWästlund Emma Holmström Alex Appiah Mensah Sören Holm Mats Nilsson Jonas Fridman Göran Ståhl | 2020 | Forest Ecosystems2020，7，3： | 3 |
| 2 | Cloning and organisation analy-sis of a hepcidin-like gene and cDNA from Japan sea bass, Lateola-brax japonicus显示文摘 | Ren HL Wang KJ Zhou HL | 2006 | Fish Shellfish Immunol2006，21，： | 1 |
| 3 | Expression of E2F3, miR-17-5p, miR-20a and their interplay in bladder cancer显示文摘 | Ren HL SunY Li XN | 2011 | AFR J Biotecbn- ol2011，10，11： | 1 |
| 4 | Synergism between heparin and adri amycin o n cellproliferation and apoptosis in human nasopharyngeal carcinoma CNE2 cells 显示文摘 | Li HL Zhang HW Ren XD | 2002 | ActaPharmacol Sin2002，23，2： | 1 |
| 5 | Total laparoscopic hysterecto- my versus total abdominal hysterectomy for endometrial cancer: ameta-analysis 显示文摘 | Wang HL Ren YF Yang J | 2013 | Asian Pac J Cancer Prey2013，14，： | 1 |
| 6 | Cloning and organisation analysis of a hepcidin-like gene and cDNA from Japan sea bass, Lateolabrax japonicus 显示文摘 | REN HL WANG K J ZHOU H L | 2006 | Fish Shellfish Immun2006，21，3： | 1 |
| 7 | Risk factors of new symptomatic vertebral compression fractures in osteopo- rotic patients undergone percutaneous vertebroplasty显示文摘 | Ren HL Jiang JM Chen JT | 2015 | Eur Spine J2015，24，4： | 1 |
| 8 | BMP9 inhibits the prolifera- tion and invasiveness of breast cancer cells MDA-MB-231 显示文摘 | Wang K Feng HL Ren W et ol | 2011 | J Cancer Res Clin Oncol2011，137，11： | 1 |
| 9 | Genome-based analysis of virulence genes in a non-biofilm-forming Staphylococcus epidermidisstrain (ATCC 12228)显示文摘 | ZHANG YQ REN SX LI HL | | 0，，06： | 1 |
| 10 | Functional aspects of PARP1 in DNA repair and transcription 显示文摘 | Ko HL Ren EC | 2012 | Biomoleeules2012，2，4： | 1 |
| 11 | Quantificationof multi-residue levels in peach juices, pulps andpeels using dispersive liquid - liquid microextractionbased on floating organic droplet coupled with gas chromatography-electron capture detection 显示文摘 | Guzalnur Matsadiq HL H u HB Ren | | Journal ofChromatographyB0，879，22： | 1 |
| 12 | Expression of telomerase inhibits hydroxyl radical-induced apoptosis in normal telomerase negative human lung fibroblasts显示文摘 | Ren JG Xia HL Tian YM | 2001 | FEBS Lett2001，488，： | 1 |
| 13 | Synergism between heparin and adriamycin on cell proliferation and apoptosis in human nasopharyngeal carcinoma CNE2 cells显示文摘 | Zhang HW Ren XD | 2002 | Acta Pharmacol Sin(中国药理学报)2002，23，2： | 1 |
| 14 | Microbial diversity in two cold spring on the Qing hai-Tibetan Plateau显示文摘 | Li GY Jiang HC Hou WG Wang shang Huang LQ Ren HL Deng SH Dong HL | | 0，，03： | 1 |
| 15 | Genome-based analysis of virulence genes in a non-biofilm-forming Staphylococcus epidermidis strain (ATCC 12228)显示文摘 | Zhang YQ Ren SX Li HL | 2003 | Molecular Microbiology2003，49，6： | 1 |
| 16 | Therapeutic effect of microencapsulated porcine retinal pigmented epithelial cells transplantation on rat model of Parkinson's disease显示文摘 | Zhang HL Wu JJ Ren HM | 2007 | Neurosci Bull2007，23，： | 1 |
| 17 | New progression in the study of protective properties of resveratrol in anticardiovascular disease显示文摘 | Dong HH Ren HL | 2004 | Bratisl Lek Listy2004，105，56： | 1 |
| 18 | New progression in the study of protective properties of resveratrol in anticardiovascular disease显示文摘 | Dong HH Ren HL | 2004 | Bratisl Lek Listy2004，105，： | 1 |
| 19 | Total laparoscopic hysterectomy versus total abdominal hysterectomy for endometrial cancer:a meta- analysis 显示文摘 | Wang HL Ren YF Yang J | 2013 | Asian Pac J Cancer Prey2013，14，4： | 1 |
| 20 | Risk factors of new symptomatic vertebral compression fractures in osteoporotic patients undergone percutaneous vertebroplasty显示文摘 | Ren HL Jiang JM Chen JT | 2015 | Eur Spine J2015，24，4： | 1 |
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