Understory biomass in five forest types in southwestern Nova Scotia

1972 ◽  
Vol 50 (6) ◽  
pp. 1263-1267 ◽  
Author(s):  
E. S. Telfer
Keyword(s):  
Nova Scotia ◽  
Aboveground Biomass ◽  
Woody Plants ◽  
Forest Types ◽  
Reconnaissance Survey ◽  
Understory Biomass ◽  
Made In

A reconnaissance survey of aboveground biomass of the understory was made in stands of five forest types in southwestern Nova Scotia. In most types, seedlings of arboreal species, mostly conifers, constituted about half the biomass. Mosses contributed the greatest share of the biomass of non-woody plants. Ferns were the most important herbaceous group. Total understory biomass was above the average of other reported studies, possibly as a result of less overstory biomass.

scholarly journals Determination of trace elements in the plants of Mt. Bozdag, Izmir, Turkey

2010 ◽  
Vol 62 (3) ◽  
pp. 731-738 ◽  
Author(s):  
D. Yildiz ◽  
I. Kula ◽  
G. Ay ◽  
S. Baslar ◽  
Y. Dogan
Keyword(s):  
Trace Elements ◽  
Woody Plants ◽  
Statistical Significance ◽  
Absorption Spectrometry ◽  
Dry Weight ◽  
Current Level ◽  
The Mean ◽  
Herbaceous And Woody Plants ◽  
Made In

The aim of this study was to determine the current level of atmospheric heavy metal content on the Bozdag Mountain of the Aegean Region, Turkey. Twenty nine different plants were selected to study their potential as biomonitors of trace elements such as Ni, Zn, Fe, Pb, Mn and Cd (?g g-1, dry weight). The samples were collected from two different altitudes of Mt. Bozdag. The concentrations of trace elements were determined by atomic absorption spectrometry. The mean concentrations determined at 1000 m altitude ranged from 0.025 to 1.609, 0.232 to 0.731, 0.578 to 5.983, 0.287 to 0.565 and 0.176 to 2.659 (?g g-1, dry weight), for Ni, Zn, Fe, Pb and Mn, respectively. At the altitude of 1600 m, the values ranged from 0.023 to 0.939, 0.258 to 1.254, 0.839 to 5.176, 0.301 to 1.341 and 0.405 to 3.351 (?g g-1, dry weight) for Ni, Zn, Fe, Pb and Mn, respectively. No Cd was detected at either altitude. Statistical significance was determined by the independent sample t-test and comparisons were made in order to determine if there were any differences between the averages of herbaceous and woody plants. .

scholarly journals LATE BLOOMING OF PLANTS FROM NORTHERN NOVA SCOTIA: RESPONSES TO A MILD FALL AND WINTER

2011 ◽  
Vol 46 (2) ◽  
Author(s):  
David J. Garbary ◽  
Jonathan Ferrier ◽  
Barry R. Taylor
Keyword(s):  
Climate Change ◽  
Nova Scotia ◽  
Woody Plants ◽  
Regional Climate ◽  
Growing Season ◽  
Flowering Phenology ◽  
Flowering Date ◽  
Cornus Sericea ◽  
Allium Schoenoprasum ◽  
Herbaceous Dicots

Over 1400 flowering records of 135 species were recorded from over 125visits to more than 20 sites in Antigonish County, Nova Scotia from November2005 to January 2006, when the growing season is normally over. The speciesidentified were primarily herbaceous dicots; however, there were four speciesof woody plants (Cornus sericea, Spiraea latifolia, Symphoricarpos albusand Salix sp.) and one monocot (Allium schoenoprasum). The number ofspecies flowering declined linearly as fall progressed, as did the amountof flowering for each species. Nevertheless, over 40 species were still inflower in early December, and over 20 species flowered in January. Thefinal flowering date was 21 January, when ten species were found. Thiswork builds on a previous study in 2001, when 93 species were recordedin flower during November-December. In addition to the 30% increase inrecorded species in 2005, almost 50% of the species found in 2005 werenot recorded in 2001. This study provides an expanded baseline againstwhich changes in flowering phenology can be evaluated with respect tosubsequent regional climate change.Key Words: Antigonish, flowering, Nova Scotia, phenology, climate change

Recoveries of Introduced Species of Parasites of the Winter Moth, Operophtera brumata (L.) (Lepidoptera: Geometridae), in Nova Scotia

1958 ◽  
Vol 90 (10) ◽  
pp. 595-596 ◽  
Author(s):  
A. R. Graham
Keyword(s):  
Nova Scotia ◽  
Introduced Species ◽  
Operophtera Brumata ◽  
Winter Moth ◽  
Made In

Five species of parasites reared from European material were released at Oak Hill, near Bridgewater, Nova Scotia from 1954 to 1956 as biotic agents against the winter moth, Operophtera brumata (L.) which had been established in Nova Scotia since before 1950. Recovery collections were made annually from 1955 to 1957. This work is still in progress, and in 1957 releases were made in four additional localities. Results of establishment of parasites from releases from 1954 to 1956 are reported below.

Soil classification in New Zealand - Legacy and lessons

Soil Research ◽  
1992 ◽  
Vol 30 (6) ◽  
pp. 843 ◽  
Author(s):  
AE Hewitt
Keyword(s):  
New Zealand ◽  
Historical Context ◽  
Soil Classification ◽  
Soil Taxonomy ◽  
Regional Correlation ◽  
Reconnaissance Survey ◽  
Soil Landscape ◽  
History Of ◽  
Intensive Land Use ◽  
Made In

A brief review of the history of soil classification in New Zealand is made in order to place the most recent work in its historical context. The first comprehensive system was inspired by the Russian concepts of zonality, and was published as the New Zealand Genetic Soil Classification by Taylor in 1948. It may be regarded as a grand soil-landscape model that related soil classes to environmental factors. Although successful in stimulating the reconnaissance survey of New Zealand soils, it failed to support the requirements of more intensive land use. Soil Taxonomy was tested as an alternative modem system for a period of 5 years but was found to make inadequate provision for important classes of New Zealand soils. The New Zealand Soil Classification was developed using many of the features of Soil Taxonomy while preserving successful parts of the New Zealand Genetic Soil Classification. Historical lessons include the increasing importance of electronic databases and regional correlation, the importance of nomenclature, the necessity of a national system and the divorce of soil classification from soil-landscape modelling.

Some Notes on the Dipterous Enemies of Aphids Harmful for Apple Growing in Nova Scotia

1961 ◽  
Vol 93 (11) ◽  
pp. 1020-1021 ◽  
Author(s):  
H. H. Evenhuis
Keyword(s):  
Nova Scotia ◽  
Phosphorus Compounds ◽  
Research Station ◽  
Department Of Agriculture ◽  
Eriosoma Lanigerum ◽  
Woolly Apple Aphid ◽  
Aphis Pomi ◽  
Dysaphis Plantaginea ◽  
Annapolis Valley ◽  
Made In

During a stay at the Research Station, Canada Department of Agriculture at Kentville, Nova Scotia, from July 3 to October 16, 1959, I had the opportunity to make some observations on the natural enemies of the woolly apple aphid, Eriosoma lanigerum (Hausm.), the rosy apple aphid, Dysaphis plantaginea (Pass.), and the green apple aplud, Aphis pomi Deg. An inventory of these enemies was made in the Annapolis Valley in apple orchards. sprayed according to the principles of the spray schedule of Dr. A. D. Pickett. This schedule avoids spraying with fungicides and insecticides such as sulphur and phosphorus compounds, which are very harmful to the enemies of a number of pests, studied by Dr. Picktett and his staff (cf. Pickett 1959). The dipterous predators and their enemies are dealt with in this paper.

Changing Special Education Practice: Law, Advocacy, And Innovation

1990 ◽  
Vol 9 (2) ◽  
pp. 65-78 ◽  
Author(s):  
Gordon L. Porter ◽  
Diane Richler
Keyword(s):  
Special Education ◽  
Nova Scotia ◽  
School Districts ◽  
New Brunswick ◽  
Integrated Education ◽  
Education Practice ◽  
Application Of Law ◽  
Collaborative Action ◽  
School Programs ◽  
Made In

The development of integrated school programs in Canadian schools is described. The article identifies three factors that have produced progress which is unique to Canada (i.e., the application of law, advocacy, and innovation). The legal factors are linked to the Charter of Rights and Freedoms, the Schools Act in New Brunswick, and two cases, the Elwood case in Nova Scotia and the Robichaud case in New Brunswick. Developments in New Brunswick since the passage of Bill 85 in 1986 that mandates integration are recounted. Advocacy is described in relation to the vision parents have articulated for their children's futures and the collective and individual advocacy of those committed to integrated education. The innovative changes made in a number of schools and school districts and factors linked to districts that have implemented innovative programs are described. Recommendations are made for collaborative action by parents and professionals to achieve exclusionary school programs.

Vegetation development in a hardwood-forest chronosequence in Nova Scotia

1994 ◽  
Vol 24 (2) ◽  
pp. 260-271 ◽  
Author(s):  
M. Crowell ◽  
B. Freedman
Keyword(s):  
Nova Scotia ◽  
Aboveground Biomass ◽  
Vascular Plants ◽  
Tree Bark ◽  
Ground Vegetation ◽  
Vegetation Development ◽  
Clear Cutting ◽  
Vigorous Growth ◽  
Mature Stands ◽  
Rate Of Accumulation

Vegetation and aboveground biomass and nutrient capital (N, P, K, Ca, and Mg) were examined in a 22-stand, 75-year chronosequence within an angiosperm-dominated forest in Nova Scotia. Stands 20 years old and younger originated with clear-cutting, whereas older stands originated with wildfire. Early successional, ruderal species of vascular plants were prominent for ca. 5 years after clear-cutting, but they occurred as a part of a diverse, species-rich community dominated by more-tolerant species, many of which survived the disturbance of clear-cutting. The rate of accumulation of aboveground biomass averaged 2.2 t•ha−1•year−1 during the first 11 years after clear-cutting, 4.7 t•ha−1•year−1 between 11 and 30 years, and then decreased to 1.5 t•ha−1•year−1 between 30 and 75 years. Foliage biomass recovered to a quantity typical of mature stands within only 3–5 years of disturbance, as a result of the vigorous growth of both ground vegetation and stump sprouts of certain tree species. The patterns of accumulation of N, P, K, and Mg were similar to that of biomass, except that initially their relative rates of accumulation were faster because of the large proportion of nutrient-rich foliage in young stands. The accumulation of Ca was relatively slower, because of its large concentration in tree bark, a tissue whose proportion in the aboveground biomass reached a maximum much later than did foliage.

scholarly journals Estimasi Cadangan Karbon Pada Tumbuhan Bawah dan Serasah Di Hutan Pendidikan dan Penelitian Fakultas Kehutanan Universitas Mulawarman Samarinda

2021 ◽  
Vol 5 (2) ◽  
pp. 55
Author(s):  
Wahjuni Hartati ◽  
Ali Suhardiman ◽  
Triyono Sudarmadji ◽  
Syahrinudin Syahrinudin ◽  
Eko Adi Sulistiyo
Keyword(s):  
Leaf Litter ◽  
Woody Plants ◽  
Secondary Forest ◽  
Forest Coverage ◽  
Steep Slopes ◽  
Lower Slope ◽  
Made In

Three slopes of 100 m long are defined in young secondary forest with gentle and slightly steep slopes. In each part of the slope, we built 1 (one) PUP of 20m x 20m which is consisted of 3 (three) Sub PUPs of 10m x 10m to represent the density of sparse, medium and dense understorey and 1m x 1m of sub-PUPs for litter harvesting. A total of 18 (eighteen) PUPs, each 54 (fifty four) Sub PUPs and Sub sub PUPs were made in this study. The HPFU area is dominated by young secondary forest coverage with gentle and slightly steep slopes. The C reserves of herbaceous understorey is greater than that of woody plants. C reserves of all components studied in the gently sloping area are greater than the steep ones. The largest C reserves is found in leaf litter for all slope positions except for a slightly steep lower slope, the largest C reserves is found in finer litter. The total C reserves of understorey and young secondary forest organic litter in HPFU 933.4 tonnes and 95.9% are stored in litter.

scholarly journals Stratification-Based Forest Aboveground Biomass Estimation in a Subtropical Region Using Airborne Lidar Data

2020 ◽  
Vol 12 (7) ◽  
pp. 1101 ◽  
Author(s):  
Xiandie Jiang ◽  
Guiying Li ◽  
Dengsheng Lu ◽  
Erxue Chen ◽  
Xinliang Wei
Keyword(s):  
Aboveground Biomass ◽  
Forest Type ◽  
Forest Stand ◽  
Airborne Lidar ◽  
Accurate Estimation ◽  
Biomass Estimation ◽  
Lidar Data ◽  
Forest Types ◽  
Estimation Model ◽  
Forest Aboveground Biomass

Species-rich subtropical forests have high carbon sequestration capacity and play important roles in regional and global carbon regulation and climate changes. A timely investigation of the spatial distribution characteristics of subtropical forest aboveground biomass (AGB) is essential to assess forest carbon stocks. Lidar (light detection and ranging) is regarded as the most reliable data source for accurate estimation of forest AGB. However, previous studies that have used lidar data have often beenbased on a single model developed from the relationships between lidar-derived variables and AGB, ignoring the variability of this relationship in different forest types. Although stratification of forest types has been proven to be effective for improving AGB estimation, how to stratify forest types and how many strata to use are still unclear. This research aims to improve forest AGB estimation through exploring suitable stratification approaches based on lidar and field survey data. Different stratification schemes including non-stratification and stratifications based on forest types and forest stand structures were examined. The AGB estimation models were developed using linear regression (LR) and random forest (RF) approaches. The results indicate the following: (1) Proper stratifications improved AGB estimation and reduced the effect of under- and overestimation problems; (2) the finer forest type strata generated higher accuracy of AGB estimation but required many more sample plots, which were often unavailable; (3) AGB estimation based on stratification of forest stand structures was similar to that based on five forest types, implying that proper stratification reduces the number of sample plots needed; (4) the optimal AGB estimation model and stratification scheme varied, depending on forest types; and (5) the RF algorithm provided better AGB estimation for non-stratification than the LR algorithm, but the LR approach provided better estimation with stratification. Results from this research provide new insights on how to properly conduct forest stratification for AGB estimation modeling, which is especially valuable in tropical and subtropical regions with complex forest types.

British, but also French: Paul Mascarene’s Translation of Molière’s Le Misanthrope in Colonial Nova Scotia

2021 ◽  
Vol 71 (1) ◽  
pp. 133-150
Author(s):  
Micah True
Keyword(s):  
Eighteenth Century ◽  
Nova Scotia ◽  
English Translation ◽  
Religious Values ◽  
Cultural Norms ◽  
Military Officer ◽  
Made In ◽  
A Performance

This article examines a little-studied manuscript translation of Molière’s Le Misanthrope, made in eighteenth-century British Nova Scotia by a military officer named Paul Mascarene, for what it can tell us about the complicated assimilation of Huguenots in the global refuge. It argues that the undated manuscript shows the surprising extent to which Mascarene, a Huguenot who fled France in childhood, remained culturally French even as he was a perfectly assimilated Briton, and that he can be seen as a cultural ambassador between his homelands new and old. The manuscript here is closely scrutinized in relation both to Molière’s original 1666 play and a published English translation that is approximately contemporaneous to Mascarene’s own effort. Comparison of the three versions of the play show that Mascarene was a skilled and thoughtful translator, committed to accurately rendering Molière’s words while also making changes that reflected his personal religious values. This article also considers the assertion that Mascarene’s translation served as the basis of a performance in Annapolis Royal in 1743 or 1744 and shows that close scrutiny of the manuscript does not support this conclusion. Instead, Mascarene’s translation of Molière’s Le Misanthrope may best be understood as a sign of how Huguenots like him may have maintained and even sought to share with others aspects of their former identities even as they sought to conform to the cultural norms of their new homelands. Cet article étudie une traduction manuscrite du Misanthrope de Molière, réalisée dans la Nouvelle-Écosse britannique au dix-huitième siècle par un officier militaire nommé Paul Mascarene, pour ce qu’elle peut nous dire sur l’assimilation compliquée des Huguenots dans le refuge mondial. Il soutient que le manuscrit montre à quel point Mascarene, un Huguenot qui a quitté la France à l’âge de onze ans et qui est réputé parfaitement assimilé à la culture britannique, est resté culturellement français. Le manuscrit est ici examiné par rapport à la pièce originale de 1666 de Molière et à une traduction en anglais publiée qui est à peu près contemporaine de celle de Mascarene. La comparaison des trois versions de la pièce montre que Mascarene était un traducteur habile et réfléchi, déterminé à traduire fidèlement les paroles de Molière tout en apportant des changements qui reflètent ses valeurs personnelles et religieuses. Cet article examine aussi l’affirmation fréquente selon laquelle la traduction de Mascarene a servi de base à une représentation à Annapolis Royal en 1743 ou 1744, et montre qu’un examen attentif du manuscrit ne corrobore pas cette conclusion. Au lieu de cela, le manuscrit peut être mieux compris comme un aperçu de la façon dont les Huguenots comme Mascarene auraient pu maintenir et même chercher à partager avec d’autres certains aspects de leurs anciennes identités tout en cherchant à se conformer aux normes culturelles de leurs nouvelles patries.

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