Studies on the Arboreal Marsupial Fauna of Eucalypt Forests Being Harvested for Wood Pulp at Eden, N.s.w. Iii. Relationships Between Faunal Densities, Eucalypt Occurrence and Foliage Nutrients, and Soil Parent Materials.

1984 ◽  
Vol 11 (1) ◽  
pp. 41 ◽  
Author(s):  
LW Braithwaite ◽  
J Turner ◽  
J Kelly
Keyword(s):  
Tree Species ◽  
Wood Pulp ◽  
Geological Data ◽  
Parent Materials ◽  
Foliage Nutrients ◽  
High Nutrient ◽  
Geological Formation ◽  
Eucalypt Forests

[See FA 45, 478-479] Felling crews provided information on the species and number of animals displaced during logging operations in 5010 ha of forest clear felled between May 1980 and Sept. 1981. Overall, 898 individuals of 8 species of glider and opossum were recorded. Geological data were also collected. The data were analysed together with published information on tree species within 22 recognizable communities and NPK concn. in Eucalptus foliage. The fauna tended to be concentrated in communities with Eucalyptus spp. with high nutrient concn. in their foliage. These communities occurred mostly on soils of one geological formation (Devonian intrusives) recognized in the district for the production of highly fertile soils.

scholarly journals An Introductory Comparison of Forest Ecological Conditions in Northeast China and Ontario, Canada

1988 ◽  
Vol 64 (2) ◽  
pp. 105-115 ◽  
Author(s):  
D. Burger ◽  
Zhao Shidong
Keyword(s):  
Key Words ◽  
Tree Species ◽  
Northeast China ◽  
Plant Material ◽  
Forest Ecology ◽  
Forest Resources ◽  
Ecological Knowledge ◽  
Parent Materials ◽  
Bedrock Geology ◽  
Effective Transfer

For two fairly similar areas, forest vegetation is compared in relation to broad features of the land. Items considered include location and land areas, history and forest resources, relief and climate, potential commercial tree species and vegetation regions, bedrock geology, soil parent materials and soil development. Ecological knowledge is considered important for the effective transfer of silvicultural technology and the exchange of plant material between the two areas. Key words: China, Ontario, Vegetation regions, Tree species, Climate, Soils, Forest ecology, Forest history.

Analysis of temporal variation and species-site relationships of witness tree data in southeastern Pennsylvania

2001 ◽  
Vol 31 (3) ◽  
pp. 419-429 ◽  
Author(s):  
Bryan A Black ◽  
Marc D Abrams
Keyword(s):  
Tree Species ◽  
Agricultural Land ◽  
Temporal Variations ◽  
Parent Material ◽  
Selective Logging ◽  
Eastern United States ◽  
Quercus Velutina ◽  
Parent Materials ◽  
Lancaster County ◽  
Tree Data

Witness tree species – site relationships are described with respect to parent material, soil drainage, and soil surface texture in Lancaster County, southeastern Pennsylvania. Quercus velutina Lam. and Carya were positively associated with "limestone" parent materials and well-drained, loamy sites. Quercus velutina was strongly associated with "acid shale and sandstone" parent materials and well-drained, upland soils. Quercus alba L. was most abundant on parent material classes associated with stream valleys and coves while Qurecus prinus L. and Castanea dentata (Marsh.) Borkh. were positively associated with well-drained, rocky sites on "quartzite" parent materials. Procedures were then developed to test for significant changes in witness tree species frequencies over the 100-year period of metes and bounds surveys in Lancaster County. These tests revealed that Quercus coccinea L., Nyssa sylvatica Marsh., and early successional species were surveyed much later than Quercus rubra L., Q. alba, and Carya spp. Agricultural land clearing, cutting for firewood, selective logging, and the charcoal-iron industry all probably contributed these species changes. Overall, abundances of minor species appear to be much more sensitive to these early settlement land uses. Given the extent of metes and bounds surveys, these tests for temporal variations may be applied to witness tree data throughout the eastern United States.

Activity of phosphatases in technosols afforested with N-fixing and non-N-fixing tree species

2021 ◽  
Author(s):  
Marcin Chodak ◽  
Katarzyna Sroka ◽  
Marcin Pietrzykowski
Keyword(s):  
Tree Species ◽  
Black Locust ◽  
Inorganic Pyrophosphatase ◽  
P Availability ◽  
Organic C ◽  
P Deficiency ◽  
Parent Materials ◽  
Black Alder ◽  
P Cycling ◽  
Specific Activities

<p>Tree species capable of forming symbiosis with N-fixing bacteria planted on reclaimed wastelands may increase not only their N content but also increase availability of P. The aim of our study was to compare the effect of rhizobial and actinorhizal N-fixing tree species and non-N-fixing species on the activity of phosphatases in various technosols. Soil samples were taken under black locust (<em>Robinia pseudoaccaccia</em>), black alder (<em>Alnus glutinosa</em>), silver birch (<em>Betula pendula</em>) and Scots pine (<em>Pinus sylvestris</em>) from two depths (0-5 cm and 5 – 20 cm) of technosols developing from different parent materials (Quaternary sands, fly ashes after lignite combustion,  acid and alkaline Tertiary clays). The samples were measured for the activities of acid and alkaline phosphatase, inorganic pyrophosphatase, microbial biomass (C<sub>mic</sub>), texture, as well as contents of organic C (C<sub>org</sub>), total N (N<sub>t</sub>) and total P (P<sub>t</sub>). Activities of acid (Pho_Aci), alkaline (Pho_Alk), total phosphatase (Pho_Sum) and inorganic pyrophosphatase (Pyro_Pho) were expressed per soil dry mass and per unit of C<sub>mic</sub> (specific enzyme activities - Pho_Aci<sub>SP</sub>, Pho_Alk<sub>SP </sub>and Pho_Sum<sub>SP</sub> for acid, alkaline and total phosphatase, respectively, Pyro_Pho<sub>SP </sub>for pyrophosphatase). The soils under black locust exhibited higher Pho_Aci activity and higher specific activities of all enzymes (Pho_Aci<sub>SP</sub>, Pho_Alk<sub>SP,, </sub>Pho_Sum<sub>SP</sub> and Pyro_Pho<sub>SP</sub>) than the soils under both non-N-fixing trees. For alder  Pho_Aci activity was significantly higher only when compared to pine. However, the values of Pho_Aci<sub>SP </sub>and Pho_Sum<sub>SP</sub> were higher under alder than under both non-N-fixing trees. There were no differences in the activities or specific activities of measured enzymes between the soils under pine and birch. Our results indicated that rhizobial black locust stimulated activity of soil enzymes involved in P cycling much stronger than non-N-fixing tree species. This effect of black locust was consistent in technosols developing from various parent materials. The effect of actinorhizal black alder was less pronounced, but also evident.  The results of our study indicated that both N-fixing trees stimulated activity of enzymes involved in P cycling stronger than the non-fixing trees. Thus, the N-fixing trees may alleviate P deficiency in technosols as they stimulate development of phosphatase releasing microorganisms and increase P availability.</p><p>The study was financed by The National Science Centre, Poland, grant No. 2018/31/B/ST10/01626.</p>

scholarly journals Process and Mineralogy of Volcanic Materials on the South Side of the Old Lawu Volcano in Java Island

2019 ◽  
Vol 16 (2) ◽  
pp. 127
Author(s):  
Mohammad Nurcholis ◽  
Dwi Fitri Yudiantoro ◽  
Darban Haryanto ◽  
Ahmad Bagus Dianputra ◽  
Krishna Aji
Keyword(s):  
Raw Materials ◽  
Early Stage ◽  
Soil Development ◽  
Parent Material ◽  
Maturity Stage ◽  
The South ◽  
Quaternary Period ◽  
South Side ◽  
Parent Materials ◽  
Geological Formation

Activities of Old Lawu volcano in the past resulted in various soil development in the south side of the volcano, especially in the area of the east side of Wonogiri and west side of Ponorogo, that located in the Java island. This area is also famous as herbal crops producer for raw materials of traditional herbal medicine industry. The purpose of this research is to identify the process of exposure of the parent materials in the Old Lawu volcanic environment, the development of the soil parent materials, and the mineralogy variation.  Four Sites with different geological formation were observed, and each Site was selected for soil profile identification on the process of weathering of rocks.  All layers of each profile were then sampled and then sand fraction of the fine earth particle was determined for the mineral type using X-ray diffraction (XRD).  The results showed that materials of the Old Lawu volcanic activity that was of quaternary period had sized material of gravel, sand, silt, and clay. These materials were then exposed and undergone the process of weathering, transportation, and sedimentation according to the landform at that period. The development of soil as geoheritage in this region was influenced by the material size, landform, and settling process. There are four typologies of the environment on the soil development at the present study, there are: (1) Soil that developed in the inter-fluvial basins is characterized by thick soil and a clear horizon differentiation process as a feature of maturity stage of soil development. (2) Soil developed on the slope of hill area is characterized by shallow in solum and it is in early-stage soil development. (3) Soil developed on the volcanic materials that were transported and sedimented in the river environment is characterized by the thick soil above the layered fine size parent material with a variety of color. (4) Soil developed on the tertiary breccia showed early soil development.

Purification of plasma membranes from leaves of conifer and deciduous tree species by phase partitioning and free-flow electrophoresis

1995 ◽  
Vol 95 (3) ◽  
pp. 399-408 ◽  
Author(s):  
Elena Toll ◽  
Federico J. Castillo ◽  
Pierre Crespi ◽  
Michele Crevecoeur ◽  
Hubert Greppin
Keyword(s):  
Tree Species ◽  
Plasma Membranes ◽  
Free Flow ◽  
Deciduous Tree ◽  
Phase Partitioning

Biscogniauxia (Hypoxylon) Canker or Dieback in Trees

EDIS ◽  
2017 ◽  
Vol 2017 (6) ◽  
Author(s):  
Claudia Paez ◽  
Jason A. Smith
Keyword(s):  
Water Stress ◽  
Tree Species ◽  
Soil Compaction ◽  
Urban Areas ◽  
Root Disease ◽  
Poor Health ◽  
Green Spaces ◽  
Opportunistic Pathogens ◽  
Wide Range ◽  
Quercus Spp

Biscogniauxia canker or dieback (formerly called Hypoxylon canker or dieback) is a common contributor to poor health and decay in a wide range of tree species (Balbalian & Henn 2014). This disease is caused by several species of fungi in the genus Biscogniauxia (formerly Hypoxylon). B. atropunctata or B. mediterranea are usually the species found on Quercus spp. and other hosts in Florida, affecting trees growing in many different habitats, such as forests, parks, green spaces and urban areas (McBride & Appel, 2009).  Typically, species of Biscogniauxia are opportunistic pathogens that do not affect healthy and vigorous trees; some species are more virulent than others. However, once they infect trees under stress (water stress, root disease, soil compaction, construction damage etc.) they can quickly colonize the host. Once a tree is infected and fruiting structures of the fungus are evident, the tree is not likely to survive especially if the infection is in the tree's trunk (Anderson et al., 1995).

Climate resilience through natural regeneration in degraded natural forests of south-eastern hilly region of Bangladesh

2019 ◽  
Vol 48 (3) ◽  
pp. 417-425
Author(s):  
Md Khayrul Alam Bhuiyan ◽  
Md Akhter Hossain ◽  
Abdul Kadir Ibne Kamal ◽  
Mohammed Kamal Hossain ◽  
Mohammed Jashimuddin ◽  
...  
Keyword(s):  
Tree Species ◽  
Natural Regeneration ◽  
Diversity Indices ◽  
Acacia Auriculiformis ◽  
Quantitative Structure ◽  
Natural Forests ◽  
Climate Resilience ◽  
Hilly Region ◽  
Major Cluster ◽  
Ecological Dominance

A study was conducted by using 5m × 5m sized 179 quadrates following multistage random sampling method for comparative regenerating tree species, quantitative structure, diversity, similarity and climate resilience in the degraded natural forests and plantations of Cox's Bazar North and South Forest Divisions. A total of 70 regenerating tree species were recorded representing maximum (47 species) from degraded natural forests followed by 43 species from 0.5 year 39 species from 1.5 year and 29 species from 2.5 year old plantations. Quantitative structure relating to ecological dominance indicated dominance of Acacia auriculiformis, Grewia nervosa and Lithocarpus elegans seedlings in the plantations whereas seedlings of Aporosa wallichii, Suregada multiflora and Grewia nervosa in degraded natural forests. The degraded natural forests possess higher natural regeneration potential as showed by different diversity indices. The dominance-based cluster analysis showed 2 major cluster of species under one of which multiple sub-clusters of species exists. Poor plant diversity and presence of regenerating exotic species in the plantations indicated poor climate resilience of forest ecosystem in terms of natural regeneration.

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