Results 121 to 130 of about 22,802 (254)

APPLIED STUDY OF BIRCH PULP BLEACHING USING DIMETHYLDIOXIRANE TO OBTAIN ACETATE-GRADE PULP [PDF]

, 2010
As a pulp bleaching agent, dimethyldioxirane (DMD) is effective and selective. In this study, it was employed as a delignifying agent or as an activating agent for hydrogen peroxide treatment in bleaching acetate-grade pulp.
Jun-Wen Pu, Mian Xing, Sheng Yao, Shu-Ke Zhou   +3 more
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The Nordic arboretum expedition to South Korea 1976 [PDF]

, 1978
This report has been prepared at the Department of Forest Genetics, Finnish Forest Research ...
Feilberg, Lars, Hagman, Max., Lagerström, Tomas, Sanda, Jan E.   +3 more
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Stem taper functions for white birch (Betula platyphylla) and costata birch (Betula costata) in the Xiaoxing’an Mountains, northeast China [PDF]

, 2021
Amna Hussain, Muhammad Khurram Shahzad, Harold E. Burkhart, Lichun Jiang   +3 more
openalex   +1 more source

Unha nova cultura forestal para a sociedade galega: o proxecto do Parque forestal de Liáns [PDF]

, 2008
[Resumo] Preséntase un proxecto de Parque Forestal. O deseño e concepción do proxecto baséase no aproveitamento dunhas circunstancias favorables especiais: a existencia dunha finca de propiedade pública, xestionada pola administración forestal ...
Vales, Carlos
core   +1 more source

Climate-growth relationships and pointer year analysis of a Siberian larch (Larix sibirica Ledeb.) chronology from the Mongolian mountain forest steppe compared to white birch (Betula platyphylla Sukaczev) [PDF]

, 2017
Alexander Gradel, Batsaikhan Ganbaatar, Ochirragchaa Nadaldorj, Batdorj Dovdondemberel, Antonín Kusbach   +4 more
openalex   +1 more source

Variations of leaf traits of an alpine shrub Sieversia pentapetala along an altitudinal gradient and under a simulated environmental change [PDF]

, 2001
We investigated intraspecific variations of leaf traits such as number of leaves, leaf size, leaf mass per shoot, leaf mass per area (LMA) and leaf nitrogen concentration (leaf N), in a deciduous alpine dwarf shrub Sieversia pentapetala (L.) Greene ...
Taguchi,Yasuhiro, Wada,Naoya
core   +1 more source

Response of streamflow components and evapotranspiration to changes in tree species composition in a subboreal permafrost watershed in the Greater Khingan Mountains of Northeastern China

Ecological Indicators
Changes in watershed water resources are often linked to land use changes, but the influence of forest structure, especially the composition of tree species, plays a crucial role in hydrological processes.
Peng Hu, Zhipeng Xu, Xiuling Man, Liangliang Duan, Tijiu Cai   +4 more
doaj   +1 more source

Circular 109 [PDF]

, 1996
Introduction -- Explanation of Plant Evaluation Tables -- Table 1. Weather records for the test years -- Table 2. All plant materials evaluated in 1996 -- Table 3. All plants that have been evaluated but did not survive the minimum number of test years --
Holloway, Patricia S., MacDonald, Theresa, Matheke, Grant E. M., Van Wyhe, Eileen, Wagner, Patricia J.   +4 more
core   +1 more source

Effects of plant root exudates at different successional stages on the seed germination and seedling growth of subalpine dominant tree species

Geoderma
Root exudates play an important role in belowground ecological processes, by which plants can regulate the soil ecosystem. However, studies on the effects of root exudates on aboveground plant emergence and growth and thus vegetation regeneration are ...
Jia Liu, Ruixue Xia, Wenqiang Zhao, Kai Fang, Yongping Kou, Qing Liu   +5 more
doaj   +1 more source

Variation morphométrique des feuilles de Aphloia theiformis le long d'un gradient altitudinal à la Réunion [PDF]

, 2006
Morphometric variation of leaves of Aphloia theiformis along an altitudinal gradient on La Réunion Island. - The variation in length (L), width (1), shape index (L/I) and estimated area (2/3 L x l) of leaves of Aphloia theiformis (Flacourtiacées) has ...
Derroire, Géraldine, Rivière, Jean-Noël, Tassin, Jacques   +2 more
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