林业科学与实践(英文版)
论文题目：Genetic variation in progenies of 23 relic trees of Metasequoia glyptostroboides in their original habitat
全部作者： Ke-Bing DU1, Lin XU1,2, Ming-He LI1, Bao-Xian SHEN1,
期刊名称：林业科学与实践(英文版) 2013年第1期
论文摘要：Seeds of 23 relic Metasequoia glyptostroboides trees were randomly collected from their original, natural populations found in Lichuan City, Hubei Province, China. The seed characteristics and growth of their three-year-old progenies were investigated. Results show that the average intra-family...[查看全部]
论文摘要：Seeds of 23 relic Metasequoia glyptostroboides trees were randomly collected from their original, natural populations found in Lichuan City, Hubei Province, China. The seed characteristics and growth of their three-year-old progenies were investigated. Results show that the average intra-family coefficient of variation (CV) in height growth of the 23 three-year-old families was 14.53%, slightly higher than that of the inter-family CV (14.02%). Correspondingly, these two parameters for root-collar diameter growth were 15.44% and 13.15%. The 23 relic mother trees were significantly differed in their general combining abilities (GCA) and relative effect values of GCA (RGCA)of height growth and root-collar diameter growth over the three years, Both height and root-collar diameter grwth had high family heritability in this seedling stage. After eliminating two inferior families, i.e., 15 and 46, 2.21% of genetic gain in height growth was obtained and 1.50% in root-coollar diameter growth. It was also significantly different in crown size and number of branches among the 23 three-year-old seedling families. From a cluster analysis we concluded that eight families, i.e., 23, 28, 29, 30, 31, 33, 35 and 44 displayed superior GCA and RGCA in both height and root-collar diameter growth. Therefore, these relic mother trees displayed their potential as parents in seed orchards..[返回]
下载频数：103 上传时间：2013-06-14
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论文题目：Spatial heterogeneity of fine root biomass of Pinus massoniana forests in the Three Gorges Reservoir Area, China
全部作者： Rui-Li WANG1, Rui-Mei CHENG1, Wen-Fa XIAO1, Xiao-Hui FENG1,2, Ze-Bin LIU1, Xiao-Rong WANG1,3, Zhi-Bo WANG4
期刊名称：林业科学与实践(英文版) 2013年第1期
论文摘要：Environmental heterogeneity is a constant presence in the natural world that significantly affects plant behavior at a variety of levels of complexity. In order to estimate the spatial pattern of fine root biomass in the Three Gorges Reservoir Area, the spatial heterogeneity of fine root biomass...[查看全部]
下载频数：94 上传时间：2013-06-14
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论文题目：Morphology and leaf nutrition of introduced Robinia pseudoacacia clones
全部作者： Guo-Jun ZHANG1,2, Jiang-Jie SHEN2, Li-Mei ZHAO2, Yu-Han SUN1, Yun LI1, Zhao-He XU1,3, Peng SUN1
期刊名称：林业科学与实践(英文版) 2013年第1期
论文摘要：In order to study and popularize clones from the introduced Robinia pseudoacacia, morphological Characteristics and leaf nutrition of samples of a three-year-old stand were observed and analyzed during its growing season Combined with data on rooting ability, height and basal Diameter,...[查看全部]
论文摘要：In order to study and popularize clones from the introduced Robinia pseudoacacia, morphological Characteristics and leaf nutrition of samples of a three-year-old stand were observed and analyzed during its growing season Combined with data on rooting ability, height and basal Diameter, comparisons were made on morphological characteristics, growth traits and leaf nutrition of 11 introduced R.pseudoacacia clones (two from Hungary and nine from South Korea) and two domestic clones. The results show that there are significant differences in growth and morphological characteristics among the 13 clones, but no significant differences in the contents of crude protein and crude fibers in the leaves (p>0.05). height and basal diameter growth of clones B and G were recorded as the fastest, while clone H1 was the slowest. Clone H2 had the largest leaflets, three times as large as other clones, while K4 had the heaviest dry weight per 100 leaflets because of its thick leaves. The 13 clones can be divided into four classes based on the number of leaflets per compound leaf, i.e., 1-3, 13-17, 15-23 and 21-25. There were significant differences in thorn size: H2, with the largest leaflets had the smallest thorns. While of course all clones produced roots, there were significant differences; clones 2N, K5 and B had many adventitious roots, while clones K3, K4 and H1 had few.[返回]
下载频数：88 上传时间：2013-06-14
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论文题目：Assessment of tolerance of willows to saline soils through electrical impedance measurements
全部作者： Yan DONG1,2, Yan MA1, Hui WANG3, Jun ZHANG1,2, Gang ZHANG4, Min-Sheng YANG1,2,
期刊名称：林业科学与实践(英文版) 2013年第1期
论文摘要：One-year-old potted clone plants of four willow species (Salix matsudana × alba, S. babylonica S. psammophila and S. cheilophila) were cultivated and irrigated with saline solutions of different concentrations, while their electrical impedance spectroscopy (EIS)parameters and other physical...[查看全部]
下载频数：83 上传时间：2013-06-14
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论文题目：Individual-based simulation of the diffusion process of Eupatorium adenophorum
全部作者： Ya-Qian FANG, Jin-Yong YANG, Qing ZHANG
期刊名称：林业科学与实践(英文版) 2013年第1期
论文摘要：In order to investigate the diffusion patterns of Eupatorium adenophorum, this study uses a computer to simulate various plant diffusion processes under different environments. The study develops binary cellular automata as a framework reflecting the growth and semination of plants by the change...[查看全部]
论文摘要：In order to investigate the diffusion patterns of Eupatorium adenophorum, this study uses a computer to simulate various plant diffusion processes under different environments. The study develops binary cellular automata as a framework reflecting the growth and semination of plants by the change of cellular state and transition function. This model allocates 16 integers, namely 1 to 16, to indicate a life history of plant starting from seed. In each iteration(a year), Monte-Carlo simulation is applied to decide whether an individual survives into the next year, the probability of which is estimated from previous literature. If a plant survives youth, mature or senile Period, its propagation will also be considered and short-tailed dispersal kernel was employed. Applying this basic model, this study also simulates the diffusion process of E, adenophorum under four typical ecological environments. Examining the age structure of the: our populations; we found that, although with significantly different numbers of plants left, most individuals were in the infancy period. Besides, their dispersal velocity showed different periodic law. These observations provided reasonable suggestions on what control strategies to be taken respectively.[返回]
下载频数：64 上传时间：2013-06-14
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论文题目：A multiple criteria analysis of factors affecting markets of engineered wood products with respect to customer preferences: a case study of particleboard and MDF
全部作者： Fatemeh SARFI, Majid AZIZI, Amin ARIAN
期刊名称：林业科学与实践(英文版) 2013年第1期
论文摘要：Of considerable importantce and a principal goal in business is the creation of customer satisfaction. Evaluation of end user preferences for producers of particleboard and medium density fiberboard (MDF) requires indices for the assessment of markets and modification of product quality. However,...[查看全部]
论文摘要：Of considerable importantce and a principal goal in business is the creation of customer satisfaction. Evaluation of end user preferences for producers of particleboard and medium density fiberboard (MDF) requires indices for the assessment of markets and modification of product quality. However, only sporadic research has been carried out in this field. Therefore, the goal of this survey was to identify indices with respect to the points of view of: 1) consumers in order to select particleboard and MDF, 2) suppliers in order to consider production strategies, improve product quality, improve competitive ability of domestic producers in the market and help Industry to be more customer oriented This survey consisted of two stages. In the first stage, factors affecting customer preferences in the selection of particleboard and MDF were determined using a Delphi method, with the help of experts and a group of principal users of these products. Then these factors were categorized in three groups. qualitative, technical and technological and marketing factors. Furthermore, questionnaires were prepared and distributed among consumers and responses evaluated and weighted by using an analytic hierarchy process(AHP) using expert choice software. Our results show that at both stages, the consistency ratio was less than 0.1, indicating that all results and judgments were stable and acceptable. [返回]
下载频数：145 上传时间：2013-06-14
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