CCPortal

浏览/检索结果: 共5条,第1-5条 帮助

已选(0)清除 条数/页:   排序方式:
Topographic variation in tree group and gap structure in Sierra Nevada mixed-conifer forests with active fire regimes 期刊论文
, 2020, 卷号: 472
作者:  Ng J.;  North M.P.;  Arditti A.J.;  Cooper M.R.;  Lutz J.A.
收藏  |  浏览/下载:30/0  |  提交时间:2020/07/28
Fires  Topography  Ecological characteristics  Forest structure  Forest treatment  Sierra Nevada mixed conifers  Species composition  Thinning treatment  Topographic positions  Topographic slope  Forestry  coniferous forest  ecosystem resilience  heterogeneity  overstory  shade tolerance  spatial analysis  stand structure  thinning  topographic effect  wildfire  Clumps  Fires  Forestry  Forests  Patterns  Resilience  Topography  Trees  Sierra Nevada  Coniferophyta  
Quantitative and qualitative approaches to assess tree vigor and stand health in dry pine forests 期刊论文
, 2020, 卷号: 465
作者:  Grulke N.;  Bienz C.;  Hrinkevich K.;  Maxfield J.;  Uyeda K.
收藏  |  浏览/下载:25/0  |  提交时间:2020/07/28
Cluster analysis  Conservation  Environmental regulations  Health  Monitoring  Needles  Petroleum reservoir evaluation  Forest restoration  Forest treatment  Pine forest  Ponderosa pines  Stand management  Tree vigor  Forestry  assessment method  coniferous forest  coniferous tree  drought  forest canopy  forest ecosystem  forest management  insect  pathogen  qualitative analysis  quantitative analysis  stand structure  tree  Conservation  Environmental Regulations  Forestry  Health  Monitoring  Needles  Fungi  Hexapoda  Pinus ponderosa  
Assessing the effects of thinning on stem growth allocation of individual Scots pine trees 期刊论文
, 2020, 卷号: 474
作者:  Saarinen N.;  Kankare V.;  Yrttimaa T.;  Viljanen N.;  Honkavaara E.;  Holopainen M.;  Hyyppä J.;  Huuskonen S.;  Hynynen J.;  Vastaranta M.
收藏  |  浏览/下载:35/0  |  提交时间:2020/07/28
Antennas  Ecology  Image reconstruction  Mechanical variables measurement  Plants (botany)  Seebeck effect  Surveying instruments  Unmanned aerial vehicles (UAV)  Diameter-at-breast heights  Effects of thinning  Growing conditions  Quantitative assessments  Terrestrial laser scanning  Thinning intensity  Thinning treatment  Threedimensional (3-d)  Forestry  biomass allocation  boreal forest  forest management  growth  morphology  pine  stem  thinning  unmanned vehicle  Ecology  Forestry  Growth  Pinus Sylvestris  Shape  Thinning  Trees  Pinus sylvestris  
The biocontrol efficacy of Chondrostereum purpureum is not sensitive to prevailing environmental conditions in boreal forests 期刊论文
, 2020, 卷号: 456
作者:  Hamberg L.;  Hantula J.
收藏  |  浏览/下载:30/0  |  提交时间:2020/07/28
Biocontrol  Electric lines  Fungi  Precipitation (chemical)  Radiation effects  Reforestation  Soil moisture  Solar radiation  Air temperature  Electric power lines  Environmental conditions  Environmental factors  Forest regeneration  Fungal treatment  Inoculation  Stump treatment  Population statistics  air temperature  boreal forest  environmental change  environmental conditions  fungus  growing season  inoculation  mortality  potential biocontrol agent  precipitation (climatology)  soil moisture  Betula  Betula pendula  Chondrostereum purpureum  Fungi  
A topographic moisture index explains understory vegetation response to retention harvesting 期刊论文
, 2020, 卷号: 474
作者:  Echiverri L.F.I.;  Ellen Macdonald S.
收藏  |  浏览/下载:34/0  |  提交时间:2020/07/28
Biodiversity  Conservation  Harvesting  Moisture  Vegetation  Water treatment  Alberta , Canada  Biodiversity conservation  Boreal mixedwoods  Coniferous stands  Depth-to-water  Mixedwood forests  Mixedwood stands  Understory vegetation  Forestry  abundance  biodiversity  forest ecosystem  harvesting  index method  landscape  satellite data  species diversity  understory  Biodiversity  Conservation  Harvesting  Moisture  Plants  Water Treatment  Alberta  Canada