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.

scholarly journals Some Observations on Forestry in China, 1983

1984 ◽  
Vol 60 (2) ◽  
pp. 96-100 ◽  
Author(s):  
J. Stan Rowe
Keyword(s):  
United States ◽  
Forest Management ◽  
North America ◽  
Key Words ◽  
Northeast China ◽  
Forest Ecology ◽  
The United States ◽  
Republic Of China ◽  
The People

Based on a one-month trip to northeast China in June of 1983 and on recent articles by returned travellers, a brief survey of afforestation, reforestation and amenity plantings is presented. The diversity of trees and of the flora in general far exceeds that of Canada and the United States, though several thousand years of use has drastically reduced the native cover. China's problems of forest reconstitution and forest management are formidable compared with those of North America. Nevertheless, the drive and determination of the people to green up the country again with trees is an inspiration to all who value forests. Key Words: Reforestation, afforestation, amenity planting, forest geography, forest ecology, People's Republic of China, Manchuria, Jilin Province.

scholarly journals Impact of Harvest Conditions and Host Tree Species on Chemical Composition and Antioxidant Activity of Extracts from Viscum album L.

Molecules ◽  
2021 ◽  
Vol 26 (12) ◽  
pp. 3741
Author(s):  
Wioleta Pietrzak ◽  
Renata Nowak
Keyword(s):  
Antioxidant Activity ◽  
Biological Activity ◽  
Chemical Composition ◽  
Tree Species ◽  
Plant Material ◽  
Plant Secondary Metabolites ◽  
Host Tree ◽  
Host Tree Species ◽  
High Antioxidant Activity ◽  
Mistletoe Extracts

The content of plant secondary metabolites is not stable, and factors such as the region/location effect and seasonal variations have an impact on their chemical composition, especially in parasitic plants. Research in this area is an important step in the development of quality parameter standards of medicinal plants and their finished products. The effects of the time and place of harvest and the host tree species on the chemical composition and antioxidant activity of mistletoe extracts were investigated. Statistical tools were used to evaluate the results of the spectrophotometric and LC-ESI-MS/MS studies of the phenolic composition and antioxidant activity. The investigations indicate that the qualitative and quantitative composition, influencing the biological activity of mistletoe extracts, largely depends on the origin of the plant. The mistletoe extracts exhibited a rich phenol profile and high antioxidant activity. The chemometric analysis indicated that mistletoe collected from conifers (Viscum abietis and Viscum austriacum) had the most advantageous chemical composition and antioxidant activity. Moreover, the chemical profile and biological activity of the plant material were closely related to the climatic conditions and location of the harvested plant. Higher levels of phenolic compounds and high antioxidant activity were found in extracts obtained from plant material collected in cold weather with the presence of snow and less sunshine (autumn–winter period).

Improving the accuracy of tree biomass estimations for three coniferous tree species in Northeast China

Trees ◽  
2021 ◽  
Author(s):  
Longfei Xie ◽  
Liyong Fu ◽  
Faris Rafi Almay Widagdo ◽  
Lihu Dong ◽  
Fengri Li
Keyword(s):  
Tree Species ◽  
Northeast China ◽  
Coniferous Tree ◽  
Tree Biomass ◽  
Coniferous Tree Species

scholarly journals Oesophageal impaction in an indigenous goose

1970 ◽  
Vol 6 (2) ◽  
pp. 231-232
Author(s):  
BC Das ◽  
A Azizunnesa ◽  
BC Sutradhar ◽  
MO Faruk
Keyword(s):  
Drug Therapy ◽  
Key Words ◽  
Plant Material ◽  
Neck Muscles ◽  
Cervical Region ◽  
Post Operation ◽  
Animal Sciences ◽  
Veterinary Hospital

An esophageal impaction consisting of plant material was diagnosed and treated in an indigenous goose. An adult freeflying indigenous goose with flaccid neck muscles, lethargic, emaciated and mildly dehydrated was brought to TVH (Teaching Veterinary Hospital), Chittagong Veterinary and Animal Sciences University, Khulshi, Chittagong, Bangladesh. Palpation of neck revealed solid tubular mass ventrally in the mid cervical region. Treatment included oesophagotomy and drug therapy. The bird was fully recovered within 10 days of post operation. Key words: Impaction, cervical region, oesophagotomy   doi: 10.3329/bjvm.v6i2.2344 Bangl. J. Vet. Med. (2008). 6 (2): 231-232

scholarly journals Peculiarities of successional changes of xylotrophic basidiomycetes during decomposition of dominant tree species of forest formations of the Pitsunda-Myussera Reserve of the Republic of Abkhazia

2021 ◽  
Vol 35 ◽  
pp. 00014
Author(s):  
Sofia Khacheva
Keyword(s):  
Species Composition ◽  
Key Words ◽  
Tree Species ◽  
Xylotrophic Basidiomycetes ◽  
Xylotrophic Fungi ◽  
The Republic ◽  
Destructive Processes

The article is about the biodiversity of xylotrophic fungi of oak and hornbeam forests of Abkhazia and related destructive processes of the main forest-forming species (oak and hornbeam). The species composition of fungi subjected to phytopathogenic and saprotrophic methods of decomposition was determined. The species composition of mycobiota, causing wood xylolysis practically up to the last stages of decomposition, has been determined. Key words: biodiversity, xylotrophic fungi, succession, Republic of Abkhazia.

scholarly journals The providing of population by the forest resourses in the cities of the value of oblast and the administrative raions in the Lviv region

2014 ◽  
pp. 252-259
Author(s):  
F. Kiptach
Keyword(s):  
Key Words ◽  
Well Being ◽  
Forest Resources ◽  
Mean Values ◽  
The Mean

The level of material well-being of population of cities of regional value and administrative districts of the Lviv area is calculated by forest resources. Their classification is conducted on the rating values of indexes of index of provision of forest resources from a calculation to the mean values for cities and districts. Key words: forest resources, populations, cities of regional value, administrative districts.

scholarly journals COMPATIBLE STEM VOLUME AND TAPER EQUATIONS FOR FIVE MAJOR TREE SPECIES IN NORTHEAST CHINA

2020 ◽  
Vol 18 (5) ◽  
pp. 6295-6308
Author(s):  
A. HUSSAIN ◽  
M.K. SHAHZAD ◽  
S.D. XIN ◽  
L.C. JIANG
Keyword(s):  
Tree Species ◽  
Northeast China ◽  
Stem Volume ◽  
Taper Equations

scholarly journals RELAÇÃO ETNOBOTÂNICA DOS PROPRIETÁRIOS RURAIS DO MUNICÍPIO DE URUPEMA, SC, COM RECURSOS FLORESTAIS

FLORESTA ◽  
2014 ◽  
Vol 44 (4) ◽  
pp. 725
Author(s):  
Renata Diane Menegatti ◽  
Pedro Higuchi ◽  
Ana Carolina Da Silva ◽  
João Fert-Neto ◽  
Jean Correia ◽  
...  
Keyword(s):  
Tree Species ◽  
Forest Resources ◽  
Native Forest ◽  
Araucaria Angustifolia ◽  
Forest Resource ◽  
Natural Forests ◽  
Fidelity Level ◽  
Araucaria Forest ◽  
Resources Exploitation

O presente estudo teve como objetivo caracterizar a relação etnobotânica de proprietários rurais do município de Urupema, SC, com recursos florestais. Para isso, foram realizadas entrevistas, em cada uma das 35 propriedades amostradas, sobre as principais fontes de renda e sobre as principais espécies florestais utilizadas. O uso das espécies foi analisado por meio do Nível de Fidelidade (NF) e da Porcentagem de Concordância quanto aos Usos Principais (CUP). As fontes de renda relatadas com maior frequência foram a pecuária, a fruticultura e a aposentadoria. Os recursos florestais são utilizados, principalmente, para fins de alimentação e energético. Todas as espécies citadas apresentaram elevado NF (≥ 97%) e a Araucaria angustifolia (Bertol.) Kuntze é a espécie de maior valor de CUP (97,06%), por ser utilizada por quase a totalidade dos entrevistados (34), sempre para os mesmos fins. Os resultados demonstraram que a maioria dos entrevistados (83%) não obtém renda das florestas naturais, mesmo com quase metade (47%) tendo citado que seria possível sustentar a família por meio da exploração dos recursos florestais nativos. Dentre os recursos florestais explorados, destacou-se a extração de pinhão como fonte de renda.Palavras-chave: Floresta com Araucária; Planalto Catarinense; etnobotânica; produtores rurais. AbstractEthnobotanical connections of rural landowners in the municipality of Urupema, SC, with forest resources. The present research aimed to characterize the ethnobotanical connections of rural landowners in the municipality of Urupema, SC, with their use of forest resource. In order to do that, we conducted interviews, in each of the 35 surveyed properties, focusing the main source of income as well as the main used tree species. The species usages were analyzed by the Fidelity Level (NF) and Percentage of Main Use Concordance (CUP). The most frequent sources of income were livestock, fruit culture and retirement. The forest resources are mainly used as food and energy. All cited species revealed elevated values of NF (≥97%), and the more elevated value of CUP was observed for Araucaria angustifolia (Bertol.) Kuntze (97,06%), as such species had been reported by almost the totality of farmers, always for the same purpose. The results revealed that most of the interviewees (83%) do not get income from natural forests, even with almost half (47%) of them considering that it would be possible to sustain their family by native forest resources exploitation. Among the exploited forest resources, the extraction of pine nuts stood out as income source.Keywords: Araucaria Forest; Planalto Catarinense; forest resource usages; ethnobotany, farmers.

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