Journal of Horticulture and Forestry最新文献_第3页

Comparative growth and dry matter accumulation in selected tree species in response to quarry dust media amendments 采石场粉尘介质修正对选定树种比较生长和干物质积累的影响

Journal of Horticulture and Forestry Pub Date : 2020-12-31 DOI: 10.5897/JHF2020.0622

Joyce Kemunto Ayusa, J. Mukundi, A. O. Adimo

{"title":"Comparative growth and dry matter accumulation in selected tree species in response to quarry dust media amendments","authors":"Joyce Kemunto Ayusa, J. Mukundi, A. O. Adimo","doi":"10.5897/JHF2020.0622","DOIUrl":"https://doi.org/10.5897/JHF2020.0622","url":null,"abstract":"Field and laboratory trials were conducted to assess the effect of quarry dust amendments media on plant growth (biomass) of various selected tree species for re-vegetation purposes of post quarry sites in Ndurugu, Kiambu-Kenya. A randomized complete block design experiment was piloted with two-month-old nursery established seedlings of four tree species (Acacia abyssinica, Casuarina equisetifolia, Eucalyptus grandis and Schinus molle) planted in four different media treatments. The media treatments were quarry dust (QD), and quarry dust amendments of a combination of quarry dust with red soil (QD+RS), with manure (QD+MN), and with forest soil (QD+FS), in a ratio of 2:1. Destructive sampling was done in three phases after the third, sixth, and ninth months of transplanting. Measurements for tree height, fresh and dry weights were done bi-weekly in the field and laboratory. Analysis of variance (ANOVA) was conducted, and results showed a substantial difference in time-species interaction on belowground, aboveground biomass, and root shoot ratio, at p ≤ 0.05. Generally, the results obtained from the research study point out that quarry dust-manure combination has the prospective to influence the growth of the plant species favorably. The medium can be recommended for the re-vegetation process in post quarry sites in Ndarugu, Kenya. \u0000 \u0000 Key words: Elite trees, quarry dust, plant biomass, re-vegetation, root shoot ratio.","PeriodicalId":267383,"journal":{"name":"Journal of Horticulture and Forestry","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127543608","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of furrow dimensions on water productivity and yield of onion at small scale Irrigation Ilu Gelan district West Shoa Ethiopia 衣索比亚西沙阿Ilu Gelan地区小灌溉沟槽尺寸对洋葱水分生产力和产量的影响

Journal of Horticulture and Forestry Pub Date : 2020-10-31 DOI: 10.5897/JHF2019.0610

Adisu Tadese, Habtamu Bedane, Eshetu Mekonnen, Gudeta Ganamo

{"title":"Effects of furrow dimensions on water productivity and yield of onion at small scale Irrigation Ilu Gelan district West Shoa Ethiopia","authors":"Adisu Tadese, Habtamu Bedane, Eshetu Mekonnen, Gudeta Ganamo","doi":"10.5897/JHF2019.0610","DOIUrl":"https://doi.org/10.5897/JHF2019.0610","url":null,"abstract":"This study was conducted at the Ilu Gelan district Western Shewa zone of Oromia Regional State to evaluate the impacts of furrow dimensions on yield and water productivity of onion. The experiment was laid out in a randomized complete block design with three treatments replicated four times. The experimental treatments including farmer practice or T1 (farmer practice with top width of 23 cm, bottom width of 13 cm and depth of 11 cm without determined flow rate), T2 (Furrow with top width of 45 cm, bottom width of 20 cm and depth of 12 cm with determined flow rate) and T3 (Furrow with top width of 35 cm, bottom width of 14 cm and depth of 10 cm with determined flow rate) having a plot size of 8 m × 5 m with spacing of 0.5 m × 1 m between plots and replications respectively. The highest application efficiency of (75.87%) was recorded under treatment T2 and the lowest application efficiency of (56.17%) was recorded from T1 that is, farmer practice when compared with other treatments. The highest distribution uniformity of (89%) was recorded from treatment T2 and lowest (81%) was from treatment T1. In terms of water productivity and yield of onion the highest values of 5.2 kg/m3 and 1952 kg/ha were recorded from T2 respectively. Similarly, lowest values 3.11 kg/m3 and 15088 kg/ha were obtained from T1 respectively. There were significance differences in plant height among all treatments at significance level of 5%. The highest (41.525 cm) was recorded from T2 and the lowest (39.275 cm) was obtained from T1. Further research covering all soil types is recommended to be more inclusive. \u0000 \u0000 Key words: Furrow irrigation, furrow dimension, grain yield, irrigation efficiency, onion, water productivity.","PeriodicalId":267383,"journal":{"name":"Journal of Horticulture and Forestry","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126435976","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Quality of tree seedlings across different nursery ownerships in Central Gondar Zone, Ethiopia 埃塞俄比亚中部贡达尔地区不同苗圃所有权的树苗质量

Journal of Horticulture and Forestry Pub Date : 2020-07-31 DOI: 10.5897/jhf2019.0599

Tesfaye Sisay, A. Alemu, Yohanes G. Mariam

{"title":"Quality of tree seedlings across different nursery ownerships in Central Gondar Zone, Ethiopia","authors":"Tesfaye Sisay, A. Alemu, Yohanes G. Mariam","doi":"10.5897/jhf2019.0599","DOIUrl":"https://doi.org/10.5897/jhf2019.0599","url":null,"abstract":"Qualities of planting stocks are critical factors for the success of forest plantations. Despite the huge number of annual seedling production in tree nurseries, awareness on quality of seedlings is very limited. This study evaluates the seedling quality across nursery ownership types in terms of morphological attributes and examines the effect of seedling quality on early growth and survival. Three nursery ownerships (private, GO and NGO) were selected from three districts of central Gondar zone with the assumption of different nursery management practices. Four tree/shrub species were selected purposively (common in all the nursery ownership types) and seedlings for quality assessment were sampled randomly. The study indicated that seedling qualities differ across the selected nursery ownership types and have significant effect on survival and early growth. Significant differences (α<0.05) were observed in the mean shoot length, root collar diameter, shoot and root dry masses among different tree nursery owners. These differences could be rooted from different management in different nursery ownership types. There were relatively higher seedling proportions having measured parameters out of threshold standards for height, root collar diameter, shoot to root ratio and height-diameter ratio in private owner. Generally, Grevillea robusta performed better in NGO, Rhamnus prinoides and Cordia africana in private nurseries and Cupressus lusitanica in GO nurseries. However, species, site, and management specific studies must be studied to clearly quantify seedling quality and the associated effect on early growth and survival. \u0000 \u0000 Key words: Quality, tree seedlings, nursery ownerships, central Gondar zone.","PeriodicalId":267383,"journal":{"name":"Journal of Horticulture and Forestry","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126928559","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Morphometrics of Pinus patula crown and its effect on cone characteristics and seed yield in Kenya 肯尼亚松冠形态计量学及其对球果特性和种子产量的影响

Journal of Horticulture and Forestry Pub Date : 2020-07-31 DOI: 10.5897/jhf2020.0635

P. Angaine, A. A. Onyango, Jesse O. Owino

{"title":"Morphometrics of Pinus patula crown and its effect on cone characteristics and seed yield in Kenya","authors":"P. Angaine, A. A. Onyango, Jesse O. Owino","doi":"10.5897/jhf2020.0635","DOIUrl":"https://doi.org/10.5897/jhf2020.0635","url":null,"abstract":"Pinus species and other conifers have cones as an essential unit for seed production. Cone production in pines is not uniform and often varies among compartments and sectors within the crown. Many countries experience challenges in seed production from orchards due to poor practices. The present study aimed to evaluate within-crown cone production patterns, cone characteristics, and seed yield in a Pinus patula clonal seed orchard in Londiani, Kenya. Crown height was divided into three equal portions and a further subdivision done for each of the parts into two sections. There were differences in cone characteristics within the crown, between the sections and compartments. The majority (67.1%) of the cones in the present study were curved. The study also showed that cone shape had no significant influence on seed yield. The present study observed cones collected from the top portion of the crown yielded the highest amount of seed (33.3±4.91 seeds) (p<0.05) while the bottom part had the lowest (14.4±2.76) (p<0.05). The study recommends the collection of P. patula seeds from the upper part of the crown in unmanaged stands. Further, it suggests that management through pollarding needs to be done regularly to minimize within-crown differences. \u0000 \u0000 Key words: Pinus patula, crown, cone characteristics, seed yield, clonal seed orchard.","PeriodicalId":267383,"journal":{"name":"Journal of Horticulture and Forestry","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114752091","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Plant species and their importance to housing in the Turkana community, Kenya 肯尼亚图尔卡纳社区的植物种类及其对住房的重要性

Journal of Horticulture and Forestry Pub Date : 2020-07-31 DOI: 10.5897/jhf2020.0634

Ejore Everlyne, Ongugo Roxventa, Kemboi Jackline, O. Samson, Mwenja Patrick, O. Jesse

引用次数: 2

An analytical assessment of forest cover changes over the last 30 Years in the semi-deciduous forest zone of Togo 多哥半落叶林带近30年来森林覆盖变化的分析评估

Journal of Horticulture and Forestry Pub Date : 2020-06-30 DOI: 10.5897/JHF2020.0631

F. A. Dangbo, O. Gardi, K. Adjonou, A. K. D. Hlovor, J. Blaser, K. Kokou

{"title":"An analytical assessment of forest cover changes over the last 30 Years in the semi-deciduous forest zone of Togo","authors":"F. A. Dangbo, O. Gardi, K. Adjonou, A. K. D. Hlovor, J. Blaser, K. Kokou","doi":"10.5897/JHF2020.0631","DOIUrl":"https://doi.org/10.5897/JHF2020.0631","url":null,"abstract":"Understanding dynamics of forest cover is important to monitor change in forest area. The objective of the present study is to develop an approach for assessing forest cover changes in landscapes with high spatial complexity and temporal variation that can allow the generation of robust monitoring information. The forest-cover change maps were produced using time-series of Landsat images, high resolution images from Google Earth, free software R and QGIS. A complete map of forest cover change at 30 m spatial resolution was produced over 603'972 ha. The result was validated by photo-interpretation of 5000 randomly sampled points and on the basis of high-resolution images available in Google Earth (Quickbird) for the year 2018 and Landsat satellite images for the year 2018, 1991 and 2003. The estimated overall accuracy of the forest cover change map is 88.7%. In the study area, the forest area was estimated at 246’915 ha in 1991, 232’741 ha in 2003 and 230’390 ha in 2018. The gross forest loss has increased from 182.5 ha/year in the first period 1991-2003 to 187.47 ha/year in the second period 2003-2018. The corresponding net annual forest loss (incl. regeneration) rates are 0.5% in the first period and 0.1% in the second period. The decrease of the net annual forest loss rate in the second period is attributed to an increase in forest regeneration. This study can be considered as a reproducible approach to map forest-cover change and can support policy approaches towards reducing emissions from deforestation and degradation (REDD+). \u0000 \u0000 Key words: Forest loss, forest gain, multi-date, Landsat, random forest, Togo.","PeriodicalId":267383,"journal":{"name":"Journal of Horticulture and Forestry","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117312194","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Studies of the wood of some Nigerian alkaloid-rich Strychnos species 尼日利亚几种富含生物碱的马钱子属植物的木材研究

Journal of Horticulture and Forestry Pub Date : 2020-05-31 DOI: 10.5897/jhf2016.0466

Asuzu Chinwe Uchechukwu, Nwosu Maria Obiageli

{"title":"Studies of the wood of some Nigerian alkaloid-rich Strychnos species","authors":"Asuzu Chinwe Uchechukwu, Nwosu Maria Obiageli","doi":"10.5897/jhf2016.0466","DOIUrl":"https://doi.org/10.5897/jhf2016.0466","url":null,"abstract":"The wood of three Nigerian species of Strychnos Linn. growing in different ecological zones was studied. The transverse, transverse longitudinal and radial longitudinal sections of the wood were made with sliding sledge microtome. The wood was macerated to measure its fiber and vessel dimensions. The wood was diffusing porous and intraxylary phloem occurred in the three species. Interxylary phloem in discontinuous ring occurred in the xylem cylinder of Strychnos innocua Del. and Strychnos usambarensis Gilg. Parenchyma was paratracheal and formed aliform to confluent patterns in S. spinosa Lam. but scanty in S. innocua and S. usambarensis. Vessel elements occurred singly and in radial and tangential multiples of two to four. The fiber lumen dimension of S. spinosa had the least value while its fiber cell wall thickness also had the greatest value. In S. spinosa, alkaloids and sterols were detected in the leaves and stem extracts. Alkaloids were found in the leaves, stem bark and fruits of S. usambarensis. The micro morphological features in each species were useful in making them adapt to the climatic conditions of the ecological zones where they grow. \u0000 \u0000 Key words: Interxylary phloem, Intraxylary phloem, Strychnos spinosa, Strychnos innocua, Strychnos usambarensis.","PeriodicalId":267383,"journal":{"name":"Journal of Horticulture and Forestry","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134114410","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Evaluation of forest litter mineralization capacity on the growth of Irvingia gabonensis in Ogwashi-Uku Forest Reserve, Delta State, Nigeria 尼日利亚三角洲州ogwasi - uku森林保护区森林凋落物矿化能力对加蓬树生长的影响

Journal of Horticulture and Forestry Pub Date : 2020-05-31 DOI: 10.5897/jhf2020.0623

A. Egwunatum, D. Dolor, P. Umeh

{"title":"Evaluation of forest litter mineralization capacity on the growth of Irvingia gabonensis in Ogwashi-Uku Forest Reserve, Delta State, Nigeria","authors":"A. Egwunatum, D. Dolor, P. Umeh","doi":"10.5897/jhf2020.0623","DOIUrl":"https://doi.org/10.5897/jhf2020.0623","url":null,"abstract":"The study evaluated litter production capacity of three forest plantation foliage litters as potential mineralization sources for the growth of Irvingiaga bonensis. Litter production capacity of Bamboo, Teak and Gmelina forest plantations was monitored for 70 days before Irvingia seeds were sown in open germination beds containing litters soil samples for vegetative development assessment. Data collected were analyzed using ANOVA and significant means separated with the DMRT. Results showed the mean litter production as Teak (3.65t/ha) >Gmelina (3.60t/ha)> Bamboo (2.67t/ha) and germination percentage was highest for soils of Bamboo plantation. The carbon nitrogen ratio was Gmelina (2.60)> Teak (2.24)> Bamboo (1.90) and bulk density as Gmelina (1.59 g/cm3) > Teak (1.47 g/cm3) > Bamboo (1.45 g/cm3). The plant height, leaf area and leaf to stem ratio were Bamboo >Gmelina> Teak while the collar diameter was highest in Teak forest plantation soils. The study showed soils under the Bamboo forest as the best growth media for I. gabonensis, and therefore implied soils under the Bamboo forest as potential natural nursery and forest regeneration materials, especially in the current global deforestation menace that have adversely limited the preponderance of silvical floor litters. \u0000 \u0000 Key words: Soil organic matter, litter production, forest soils, decomposition, vegetative development.","PeriodicalId":267383,"journal":{"name":"Journal of Horticulture and Forestry","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134286488","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Woody species diversity conservation and carbon sequestration potential of coffee agroforestry systems in the Western Region of Cameroon 喀麦隆西部地区咖啡农林复合系统的木本物种多样性保护和固碳潜力

Journal of Horticulture and Forestry Pub Date : 2020-04-30 DOI: 10.5897/JHF2020.0627

L. F. Temgoua, Alex Bruno Dong Etchike, M. C. M. Solefack, Pricelia F. Tumenta, J. Nkwelle

{"title":"Woody species diversity conservation and carbon sequestration potential of coffee agroforestry systems in the Western Region of Cameroon","authors":"L. F. Temgoua, Alex Bruno Dong Etchike, M. C. M. Solefack, Pricelia F. Tumenta, J. Nkwelle","doi":"10.5897/JHF2020.0627","DOIUrl":"https://doi.org/10.5897/JHF2020.0627","url":null,"abstract":"This study sought to assess the contribution of coffee agroforestry systems (CAFS) in conserving tree diversity and carbon stocks in the western region of Cameroon. Inventory was carried out in 52 plots laid out in CAFS and in adjacent secondary forest. Above-ground biomass was estimated using allometric method. A total of 30 species belonging to 19 families were identified in CAFS and 30 species belonging to 15 families in the forest. The Jaccard similarity index between CAFS and forest was 43%. In the CAFS, the average value of Shanon diversity index was 1.61, reflecting a low diversity. The average tree density was 133 stems/ha in CAFS and 345 stems/ha in the forest. The CAFS stored an amount of carbon of 24.28 tC/ha, representing only 10.30% of the average amount of carbon stored by the forest (235.88 tC/ha). In the CAFS, Elaeis guineensis was the most dominant species with an important value index of 169.96%. The most efficient species for carbon sequestration were Triplochiton scleroxylon with 2.38 tC/tree. These results indicate the need to integrate CAFS as a biodiversity conservation and carbon sequestration land-use system due to the many socio-economic and ecological benefits they provide both in climate change adaptation and mitigation. \u0000 \u0000 Key words: Coffee agroforestry system, diversity, ecosystem services, climate change mitigation, carbon stock.","PeriodicalId":267383,"journal":{"name":"Journal of Horticulture and Forestry","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132265499","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Evaluation of multi-functional fodder tree and shrub species in mid-altitudes of South Omo Zone, Southern Ethiopia 埃塞俄比亚南部南奥莫区中高海拔多功能饲料乔灌木树种评价

Journal of Horticulture and Forestry Pub Date : 2020-03-31 DOI: 10.5897/JHF2019.0617

Asmelash Tesfaye Gebremedhin, Alemayehu Hido Gedo, Getahun Yakob Edo, Shimelis Tessema Haile

{"title":"Evaluation of multi-functional fodder tree and shrub species in mid-altitudes of South Omo Zone, Southern Ethiopia","authors":"Asmelash Tesfaye Gebremedhin, Alemayehu Hido Gedo, Getahun Yakob Edo, Shimelis Tessema Haile","doi":"10.5897/JHF2019.0617","DOIUrl":"https://doi.org/10.5897/JHF2019.0617","url":null,"abstract":"A study was conducted to evaluate the early growth performance and nutrient composition of some selected tree/shrub species in the fodder bank agroforestry system. Moringa stenopetala, Terminalia brownii, Morus alba, Melia azedarach, and Sesbania sesban were used for this study. Square quadrants of 16 m2 plot sizes were established with the RCBD of three replications. Seedlings were planted with 1 m × 1 m spacing between rows and plants respectively. The growth and chemical composition of the studied tree/shrub species were evaluated with one way ANOVA. The growth parameters and nutrient composition of the studied fodder tree/shrub species are significantly (P ≤ 0.05) varied. The nutrient composition of the studied tree/shrub species ranged between percentages of 88.3 - 90.6 of Dry Matter, 5.7 - 13 of Ash, 12.45 - 22.35 of Crude Protein, 11.8 – 23.5 of Acid Detergent Fiber and 18.1 - 33.6 of Neutral Detergent Fiber. S. sesban and M. stenopetala are the consistent and superior tree/shrub species with growth performance and nutrient content parameters respectively. In addition to this, the selected fodder tree/shrub species are well adapted in the fodder bank agroforestry system and have considerable nutrient constituents. Thus the studied tree species seems to be a potential alternative for complementing the basal feed. \u0000 \u0000 Key words: Fodder bank, livestock feed, South Omo, nutrient composition, agroforestry.","PeriodicalId":267383,"journal":{"name":"Journal of Horticulture and Forestry","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121602980","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4