搜索结果: 1-10 共查到“农学 aspen”相关记录10条 . 查询时间(0.062 秒)
Ethylene enhances root water transport and aquaporin expression in trembling aspen (Populus tremuloides) exposed to root hypoxia
chromosome engineering aquaporin ethylene flooding oxygen hydraulic conductance
2023/12/7
In this study, we examined the effects of root hypoxia and exogenous ethylene treatments on leaf gas exchange, root hydraulic conductance, and the expression levels of several aquaporins of the plasma...
Climate Effects on Black Spruce and Trembling Aspen Productivity in Natural Origin Mixed Stands
dynamic models height growth functions mixed effects models biotic and edaphic effects climate change site productivity
2023/12/6
Forest managers need site productivity estimates for tree species growing in mixed stands. Models developed in the past are generally for pure stands and don’t factor in the effects of climate change ...
Productivity, Growth Patterns, and Cellulosic Pulp Properties of Hybrid Aspen Clones
Populustremula heterosis growthrate cellulosicpulp paperproperties
2024/3/8
This research provides a firm basis for understanding the improved aspen hybrid performance that aims at facilitating optimal clone selection for industrial application. Background and Objectives: Rap...
Evaluation of full tree skidding by HSM-904 skidder in patch cutting of aspen plantation in Northern Iran
time consumption HSM-904 skidder skidding cost
2015/4/14
This paper presents research results of the performance of HSM-904 grapple skidder using a full tree harvesting method in a non-native aspen Populus deltoides plantation in even terrain conditions in ...
Heavy metals uptake by the hybrid aspen and rowan-tree clones
phytoremediation heavy metals hybrid aspen
2015/3/5
Micropropagated plantlets derived from selected clones of the hybrid aspen (Populus tremula × Populus tremuloides) and the rowan-tree (Sorbus aucuparia L.) were used to determine the comparative study...
Aspen micropropagation: use for phytoremediation of soils
aspen micropropagation Agrobacterium tumefaciens
2015/3/3
Toxic pollution of soils is a major environmental problem in the Czech Republic. Most contemporary
remediation approaches do not provide acceptable solutions. For environmental clean-up, the use of ...
British Columbia抯 Northeastern Forests: Aspen Complex Stand Establishment Decision Aid
deciduous and mixedwood management fibre production Populus tremuloides silviculture systems trembling aspen vegetation management
2010/8/31
Aspen (Populus tremuloides) is the most widely distributed tree species in North America and can be found from the McKenzie Delta to northern Mexico. Its range in British Columbia is restricted to the...
Aspen regeneration, forage production, and soil compaction on harvested and grazed boreal aspen stands
forest grazing Peace River region forest soil
2009/2/11
The objective of our study was to determine the effects of timber harvesting and cattle grazing on aspen regeneration, forage production, and soil compaction on aspen cutblocks in the Peace River regi...
Growing trembling aspen and white spruce intimate mixtures：Early results（13—17 years）and future projections
Growing trembling aspen white spruce intimate mixtures Early results future projections
2009/2/5
Controlled mixtures of trembling aspen (Populus tremuloides Michx.) and white spruce (Picea glauca [Moench] Voss) were established in 1989 at two locations in the Boreal White and Black Spruce (BWBS) ...
Relationships between stand parameters and understorey light in boreal aspen stands
Relationships stand parameters understorey light boreal aspen stands
2009/1/8
Data from six aspen stands in northeastern British Columbia ranging in age from 12 to 40 years were used to examine relationships between understorey light levels and stand attributes (basal area, sta...