搜索结果: 1-15 共查到“林学 HEALTH”相关记录21条 . 查询时间(0.19 秒)
Species, Climatypes, Climate Change, and Forest Health: A Conversion of Science to Practice for Inland Northwest (USA) Forests
climate-change impacts ecosystem responses to climate species distributions climatype distributions adaptive management
2023/12/6
Research Highlights: This paper integrates disparate research results pertaining to climate change impacts to 12 co-occurring forest tree species and their climatypes such that management options for ...
Climate Change Risks to Global Forest Health: Emergence of Unexpected Events of Elevated Tree Mortality Worldwide
global forests dynamic global vegetation models forecasting forest assessment remote sensing mortality mechanisms hotter drought
2023/11/30
Recent observations of elevated tree mortality following climate extremes, like heat and drought, raise concerns about climate change risks to global forest health. We currently lack both sufficient d...
Tree health influences diameter growth along site quality, crown class and age gradients in Nothofagus forests of southern Patagonia
Nothofagus pumilio annual diameter increment
2015/4/24
We examined the influence of tree health on annual diameter increment of trees along gradients in stand site quality, crown classes and tree age in Nothofagus pumilio forests of Southern Patagonia. He...
The health and nutritional status of Norway spruce stands in the Krušné hory Mts. 15 years subsequent to the extreme winter of 1995/96
forest health tree nutrition air pollution Ore Mts
2015/4/24
Since 1994, the nutritional status and the air pollution load have been evaluated on 20 research plots, located in young Norway spruce stands in the ridge area of the Krušné hory Mts. The most re...
Evaluation of physiological and health state of Norway spruce plants with different growth rate at juvenile stage after outplanting at mountain locations
health status mountain locality Norway spruce physiological trait
2015/3/27
Norway spruce (Picea abies [L.] Karst.) seedlings grown from seed originating from high mountain locations (8th forest altitudinal zone – Norway spruce vegetation zone 1,000–1,250 m a.s.l.) show highe...
Evaluation of the growth and health status of selected clone mixtures in comparison with ordinary planting stock
chlorophyll fluorescence clonal propagation growth mother plantations mountain conditions Norway spruce water losses
2015/3/19
The present paper compares the growth of parent trees and potentially stress-tolerant mixtures of clones of Norway spruce (Picea abies [L.] Karst.) progenies coming from a specific locality near the &...
Health status of forest stands on permanent research plots in the Krkonoše Mts
air pollution beech mixed and spruce stands damage defoliation health status Krkonoš e Mts. transition matrices
2015/3/19
Damage to beech, mixed (beech with spruce to spruce with beech) and spruce stands in the Krkonoše Mts. is described on the basis of evaluation of transition matrices describing the probability of...
Growth and health state of silver fir (Abies alba Mill.) in the ridge area of the Jizerské hory Mts
silver fir Abies alba Mill. artificial regeneration chemical amelioration
2015/3/12
The silver fir was planted under mountain conditions in order to reveal its response to the addition of finely ground rocks (limestone and amphibolite) mixed with soil into the planting holes. The res...
Root system development and health condition of sycamore maple (Acer pseudoplatanus L.) in the air-polluted region of Krušné hory Mts.
sycamore maple root system humus
2015/3/5
The paper presents results from a study of sycamore maple development, health condition and growth in forest altitudinal vegetation zones (FAVZ) 6 and 7 occurring in pollution damage zones A and B in ...
Dynamics of the health status of forest stands and its prediction on research plots in the Šumava Mts.
health status defoliation air-pollution and ecological stress
2015/3/3
The paper summarises the evaluation of the health status dynamics of allochthonous spruce stands in
the Modrava Forest District and of natural stands in the Plešny Forest District. Analysis is ...
Gradients of the content of photosynthetic pigments and radiation as manifestations of the health condition of Norway spruce (Picea abies [L.] Karst.)
chlorophyll carotenoids radiation transmittance health condition Picea abies (L.) Karst.
2015/2/2
The paper deals with the health condition of sample trees of Norway spruce (Picea abies [L.] Karst.) on the basis of the distribution and quantity of chlorophyll a + b and carotenoids with respect to ...
Development of necrotic disease and health condition of trees of selective quality in a systematically tended beech pole-stage stand
beech pole-stage stand thinnings Central Slovakia
2015/1/29
We compare the results of observations of bark necrotic disease and defoliation of beech assimilatory organs carried out in 1996 and 2000. A systematically managed, 53-year old beech pole-stage stand ...
LANDSAT and its application to evaluate the dynamics of the health condition of birch stands
Betula pendula Roth health condition LANDSAT monitoring
2015/1/29
Methods were elaborated that would specify factors affecting the accuracy of the output of LANDSAT satellite images used to evaluate the dynamics of changes in the health condition of birch stands. In...
Dynamics of health status of forest stands on research plots in the Šumava National Park
health status defoliation air-pollution and ecological stress
2015/1/29
The paper summarises an evaluation of the health status dynamics of allochthonous spruce stands in the Modrava Forest District and of natural stands in the Plešny Forest District. Analysis is bas...
Evaluation of the growth and health of different poplars in the Latorica area in Vychodoslovenská nížina conditions
poplars growth and production pests
2015/1/28
The paper presents the results of evaluating the growth and health of 20 different poplars from the Aigeiros group in 30-year populetum Leles on uninundated alluvia of the Latorica River in ecological...