Herbaceous Response to Canopy Cover, Light Intensity, and Throughfall Precipitation in Coniferous Forests

Ecology ◽  
1969 ◽  
Vol 50 (2) ◽  
pp. 255-263 ◽  
Author(s):  
R. C. Anderson ◽  
O. L. Loucks ◽  
A. M. Swain
Keyword(s):  
Light Intensity ◽  
Canopy Cover ◽  
Coniferous Forests

Diurnal Flying Activity of a Neotropical Bat (Saccopteryx leptura): Effect of Light Intensity, Temperature, and Canopy Cover

2020 ◽  
Vol 22 (1) ◽  
pp. 87
Author(s):  
Isabela Vivas-Toro ◽  
Oscar E. Murillo-García
Keyword(s):  
Light Intensity ◽  
Canopy Cover ◽  
Effect Of Light

Autecology of Erythronium grandiflorum in western Canada

2001 ◽  
Vol 79 (4) ◽  
pp. 500-509 ◽  
Author(s):  
Dawn C Loewen ◽  
Geraldine A Allen ◽  
Joseph A Antos
Keyword(s):  
Canopy Cover ◽  
Detrended Correspondence Analysis ◽  
Coniferous Forests ◽  
Deciduous Trees ◽  
Growth Stages ◽  
Western Canada ◽  
Percent Cover ◽  
Subalpine Meadows ◽  
Associated Species ◽  
Erythronium Grandiflorum

Habitat requirements of the yellow glacier lily, Erythronium grandiflorum Pursh, were studied at 38 sites in southern British Columbia and southwestern Alberta. At each site we recorded densities of E. grandiflorum growth stages from seedling to flowering, environmental characteristics of the site, and percent cover of associated plant species. We carried out detrended correspondence analysis (DCA) of the sites based on cover of associated species, and examined rank correlations between site environmental variables and site ordination scores. Variation among sites was related primarily to elevation and the presence of deciduous vs. coniferous trees. All growth stages of E. grandiflorum were less abundant in coniferous forests than in open areas or sites with deciduous trees, suggesting that evergreen canopies restrict the species on many sites where it could otherwise grow. Although E. grandiflorum populations were most commonly found in subalpine meadows, they flowered more abundantly in low-elevation populations. Recruitment was frequent, with seedlings occurring at many sites; we also showed that detached bulb segments can give rise to new ramets. The present widespread distribution of E. grandiflorum may derive from a post-glacial period with extensive meadow habitat that was favourable for rapid spread.Key words: canopy cover, elevation, yellow glacier lily, post-glacial migration, subalpine meadows.

scholarly journals The Relations between Light Intensity-Fluctuation of Various Forest and Psychological Appraisal of Subjects in Several Man-Made Coniferous Forests

2008 ◽  
Vol 71 (5) ◽  
pp. 709-712
Author(s):  
Midori FUJISAWA ◽  
Norimasa TAKAYAMA ◽  
Yasuhiro KOYAMA ◽  
Masato KATOH
Keyword(s):  
Light Intensity ◽  
Intensity Fluctuation ◽  
Coniferous Forests

Subpixel canopy cover estimation of coniferous forests in Oregon using SWIR imaging spectrometry

2001 ◽  
Vol 106 (D6) ◽  
pp. 5151-5160 ◽  
Author(s):  
David B. Lobell ◽  
Gregory P. Asner ◽  
Beverly E. Law ◽  
Robert N. Treuhaft
Keyword(s):  
Canopy Cover ◽  
Coniferous Forests ◽  
Imaging Spectrometry

Effects of Different Light Intensity on the Growth and Nutrients Content of Gynura

2014 ◽  
Vol 955-959 ◽  
pp. 3766-3769 ◽  
Author(s):  
Xiang Rong Cheng ◽  
Jia Liu ◽  
Jun Shu ◽  
Mu Kui Yu
Keyword(s):  
Light Intensity ◽  
Sugar Content ◽  
Soluble Sugar ◽  
Light Condition ◽  
Amino Acid Content ◽  
Canopy Cover ◽  
Water Soluble ◽  
Light Conditions ◽  
Significant Difference ◽  
Number Of Branches

Light condition has significant effects on plant growth and nutrient accumulation. The growth and nutrients content of Gynura (Begonia fimbristipulata) were studied under three light intensities (natural field, 100% full sunlight (L0); 50% canopy cover (L1); 70% canopy cover (L2)) in Fuyang, China. The results showed that plant height, ground diameter and number of branches were no significant difference between L0 and L1 treatments (P>0.05), these variables were significantly lower in L2 treatment than that in L0 treatment (P<0.05). Potassium (K), phosphorus (P), vitamin C (Vc) and soluble sugar content in Gynura’s leaves reduced with decreasing light intensity. The content of protein and iron (Fe) were no significant difference among the three light treatments (P>0.05). The content of calcium (Ca) markedly increased in L1 treatment compared with L0 treatment (P<0.05), and it greatly declined in L2 treatment. The change of light conditions had less impact on the water-soluble amino acid content (except for alanine, serine, and glutamic acid). These results indicate that Gynura is suitable to cultivate under the forest with 50% canopy cover.

scholarly journals GROWTH RESPONSE OF 3YEARS AGE JERNANG RATTAN PLANT (Daemonorops draco Willd.) ON LIGHT INTENSITY UNDER MIXED STAND AT KHDTK KEMAMPO, BANYUASIN REGENCY

2021 ◽  
Vol 10 (1) ◽  
pp. 12
Author(s):  
Andi Nopriansyah ◽  
Cik Aluyah ◽  
Endang Sosilawati
Keyword(s):  
Light Intensity ◽  
Growth Response ◽  
Block Design ◽  
Canopy Cover ◽  
Canopy Closure ◽  
Natural Forests ◽  
Mixed Stands ◽  
Randomized Block Design ◽  
Number Of Leaves ◽  
Development Center

Rattan jernang (Daemonorops draco Willd.) is a type of non-timber forest product that has a high market value. To reduce dependence on natural forests, jernang rattan cultivation is important. This study aims to determine the growth response of 3 year old jernang rattan plants to light intensity under mixed stands. The study was carried out at KHDTK Kemampo, Palembang Environmental and Forestry Research and Development Center from June to July 2020. This study used an experimental method with a Non-Factoral Randomized Block Design consisting of 3 treatments with 9 replications. The treatments consisted of P1 = canopy closure 10–30% (light intensity 72.19%), P2 = canopy closure 40–60% (light intensity 55.63%), and P3 = canopy closure 70–90% (light intensity 23.39%). The results showed that the growth of jernang rattan gave a very good response to light intensity under mixed stands for all parameters observed, namely plant height, leaf midrib length and number of leaves, as well as leaf color. The best growth of jernang rattan is in light conditions with a canopy cover of 10%-30% (light intensity 72.19%). There is a positive correlation between light intensity and the growth of jernang rattan under mixed stands, that is, the higher the light intensity, the better the growth of jernang rattan.

Effects of forest canopy cover and floor on chemical quality of water in broad leaved and coniferous forests of Istanbul, Turkey

2013 ◽  
Vol 289 ◽  
pp. 371-377 ◽  
Author(s):  
Hosein Khoroshi Eisalou ◽  
Kamil Şengönül ◽  
Ferhat Gökbulak ◽  
Yusuf Serengil ◽  
Betül Uygur
Keyword(s):  
Forest Canopy ◽  
Canopy Cover ◽  
Coniferous Forests ◽  
Chemical Quality ◽  
Quality Of Water

Scale-dependent effects of post-fire canopy cover on snowpack depth in montane coniferous forests

2017 ◽  
Vol 27 (6) ◽  
pp. 1888-1900 ◽  
Author(s):  
Jens T. Stevens
Keyword(s):  
Canopy Cover ◽  
Coniferous Forests

scholarly journals Autecology of An Endemic Palm Pinanga arinasae J.R.Witono in Bali, Indonesia

2020 ◽  
Vol 5 (2) ◽  
pp. 108
Author(s):  
Rajif Iryadi ◽  
Sutomo Sutomo
Keyword(s):  
Light Intensity ◽  
Sampling Method ◽  
Habitat Preferences ◽  
Canopy Cover ◽  
Systematic Sampling ◽  
Abundance Patterns ◽  
Systematic Sampling Method ◽  
The Right ◽  
Abundance And Distribution ◽  
Main Factor

Nyabah, or Jabah (Pinanga arinasae J.R.Witono) is pinanga or palm which is endemic to Bali.  This study aimed to determine the distribution, abundance patterns, and habitat preferences of P. arinasae, and also its natural microclimate on Mount Pengelengan, Bali, on which the species occurred. Field observations were conducted using systematic sampling method. 20 x 20 m plots were made along a transect of forest path on the right and the left, with 100 m distance between plots. Results showed P. arinasae distribution in Mount Pengelengan grows clumped with different abundance in each plot. Microclimate observations (light intensity, humidity relative, and air temperature) each plot varies the effect on the distribution and abundance of P. arinasae. Light intensity is the main factor that regulates the abundance and distribution of P. arinasae and this species has the most abundant on the limited canopy cover area which has high the light intensity at 1319 lux. Autecological data is the first step in conservation efforts. 

scholarly journals Habitat affinities of 228 boreal Finnish spiders: a literature review

2004 ◽  
Vol 15 (3) ◽  
Author(s):  
Katja Matveinen-Huju
Keyword(s):  
Light Intensity ◽  
Literature Review ◽  
Species Composition ◽  
Tree Species ◽  
Canopy Cover ◽  
Ecological Studies ◽  
Tree Species Composition ◽  
Spider Species ◽  
Two Factors ◽  
Habitat Affinities

Information about the habitat affinities of spiders is necessary in ecological studies. I focused on two factors in habitats of spiders: light intensity and moisture. First, the habitats were classified according to these factors. Canopy cover and tree species composition were used to indicate the amount of sunlight reaching the ground. Habitat moisture was determined indirectly from the vegetation. Second, the spider species were classified according to what kind of a habitat they were found in the literature. This paper updates and continues Huhta’s (1971) classification, including 228 boreal spider species, based on Finnish literature from boreal region.

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