搜索结果: 1-15 共查到“知识库 林学 Water”相关记录64条 . 查询时间(0.075 秒)
Soil water deficit as a tool to measure water stress and inform silvicultural management in the Cape Forest Regions, South Africa
Soil Water Availability Climatic Gradient Slash Pine Monterey Pine Edaphic Properties
2024/1/19
An understanding of variations in water availability to plantation forests on a spatial and temporal scale is essential when designing risk averse and site-specific silvicultural management regimes. V...
Functional traits indicate a continuum of tree drought strategies across a soil water availability gradient in a tropical dry forest
Tropical dry forest Soil moisture content Functional guilds Drought avoidance Drought resistance Drought tolerance
2024/1/12
This study evaluates drought survival mechanisms of tropical dry forest (TDF) trees based on their functional traits (FTs). We addressed the following questions: (i) What are the dominant functional g...
Foliar water uptake in arid ecosystems: seasonal variability and ecophysiological consequences
Rooting depth Cell wall elasticity Leaf water potential Transpiration Rain pulse Dew formation
2024/1/12
Foliar water uptake (FWU) has been reported for different species across several ecosystems types. However, little attention has been given to arid ecosystems, where FWU during dew formation or small ...
Root architecture and hydraulics converge for acclimation to changing water availability
hydraulics roots achieve water availability root hydraulic architecture
2024/1/12
Because of intense transpiration and growth, the needs of plants for water can be immense. Yet water in the soil is most often heterogeneous if not scarce due to more and more frequent and intense dro...
Ensemble machine-learning-based framework for estimating total nitrogen concentration in water using drone-borne hyperspectral imagery of emergent plants: A case study in an arid oasis, NW China
Water resources Remote sensing Total nitrogen Hyperspectral imagery Machine learning Bootstrap
2023/12/19
In arid and semi-arid regions, water-quality problems are crucial to local social demand and human well-being. However, the conventional remote sensing-based direct detection of water quality paramete...
Developmental plasticity in Arabidopsis thaliana under combined cold and water deficit stresses during flowering stage
Acclimation Bolting Cold Flower size Terminal combined stress Water deficit
2023/12/11
In nature, plants are exposed to multiple and simultaneous abiotic stresses that influence their growth, development, and reproduction. In the last years, the study of combined stresses has aroused th...
Simulating the effects of water limitation on plant biomass using a 3D functional-structural plant model of shoot and root driven by soil hydraulics
functional-structural plant models soil modelling GroIMP ArchiSimple Min3P photosynthesis soil-plant interactions water uptake water deficit intercropping
2023/12/11
Background and Aims Improved modelling of carbon assimilation and plant growth to low soil moisture requires evaluation of underlying mechanisms in the soil, roots, and shoots. The feedback between pl...
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...
Simulating the Effects of Thinning Events on Forest Growth and Water Services Asks for Daily Analysis of Underlying Processes
ack forest forest hydrology drought analysis thinning resolution
2023/12/7
Forest growth function and water cycle are affected by climatic conditions, making climate-sensitive models, e.g., process-based, crucial to the simulation of dynamics of forest and water interactions...
Estimation of Surface Canopy Water in Pacific Northwest Forests by Fusing Radar, Lidar, and Meteorological Data
individual trees Sentinel-1 radar imagery time series Pacific Northwest
2023/12/6
Surface Canopy Water (SCW) is the intercepted rain water that resides within the tree canopy and plays a significant role in the hydrological cycle. Challenges arise in measuring?SCW?in remote areas u...
Higher leaf nitrogen content is linked to tighter stomatal regulation of transpiration and more efficient water use across dryland trees
arid ecosystems ci/ca ratio leafδ13C leaf δ18O plant isotopic composition
2023/11/28
The least-cost economic theory of photosynthesis shows that water and nitrogen are mutually substitutable resources to achieve a given carbon gain. However, vegetation in the Sahel has to cope with th...
Amplifying effects of recurrent drought on the dynamics of tree growth and water use in a subalpine forest
dehydration dynamics drought legacy effects stem capacitance
2023/11/28
Despite recent advances in our understanding of drought impacts on tree functioning, we lack knowledge about the dynamic responses of mature trees to recurrent drought stress. At a subalpine forest si...
Leaf water potential measurements using the pressure chamber: synthetic testing of assumptions towards best practices for precision and accuracy
leaf water potential plant water relations plant water status pressure bomb pressure chamber water stress
2023/11/28
Leaf water potential (ψ leaf), typically measured using the pressure chamber, is the most important metric of plant water status, providing high theoretical value and information content for multiple ...
Convergence in water use efficiency within plant functional types across contrasting climates
water use efficiency plant functional types climates grassland permanent wetland savannah deciduous broadleaf and deciduous needleleaf forest
2023/11/28
Water use efficiency (WUE) provides a direct measure of the inextricable link between plant carbon uptake and water loss, and it can be used to study how ecosystem function varies with climate. We ana...
Trade-Offs and Synergies between Plant Species Diversity and Water Retention Capacity of Pinus massoniana Plantation Community in Danjiangkou Reservoir Area
Pinus massoniana plantation plant species diversity trade-off synergistic ecosystem service Danjiangkou reservoir area
2023/11/22
In order to quantify the plant species diversity characteristics of Pinus massoniana plantations with different stand densities in the Danjiangkou reservoir area of Hubei Province and the relationship...