Forest Science and Technology最新文献

{"title":"Genetic stability observed in third-generation progeny trial of <i>Acacia mangium</i> : the importance of genotype by environment interaction assessment in advance generation breeding strategy","authors":"Arif Nirsatmanto, Sri Sunarti, Asri Insiana Putri, Liliek Haryjanto, Noor Khomsah Kartikawati, Toni Herawan, Fajar Lestari, Sugeng Pudjiono, Anto Rimbawanto","doi":"10.1080/21580103.2023.2264887","DOIUrl":"https://doi.org/10.1080/21580103.2023.2264887","url":null,"abstract":"The breeding program for Acacia mangium has entered advanced-generation breeding cycles through adopting a recurrent selection system and a sub-lining breeding population. Genetic variation changes along the successive generations could affect its genetic stability on wide ranges of sites. The aim of this study is to observe genetic stability in third-generation progeny trials of A. mangium established at three different sites in Indonesia. Analysis was conducted, including single-site and multi-sites analyses for height, diameter, and stem forking that were grouped into two sets of analysis based on the genetic background of the trial: SET01 for the single sub-line and SET02 for the composite sub-lines. Index selection for multiple-traits was then used to identify the family changing ranks for multiple-traits and genetic gain prediction. The results showed that the recurrent selection system adopted in the breeding strategy for single-site analysis could maintain sufficient genetic variance of A. mangium in the third-generation progeny trial. Family heritability was moderate to high for almost all traits. However, a strong genetic-environment interaction (G × E) exists in multi-sites analysis for the single sub-line population (SET01), indicating a less sufficient genetic variation and a low Type B genetic correlation in anticipating a wider range of environment. On the contrary, compositing selected family from several sub-lines (SET02) could diminish the strength of G × E and increase Type B correlation. Selection and genetic gain prediction could be more effective in multi-sites analysis for SET02, but it was less effective for SET01. The results imply that adopting a recurrent selection system in advanced-generation breeding of A. mangium should consider structuring the breeding population. It could be practiced by compositing selected superior families from several sub-lines into one breeding population to maintain high genetic stability, while increasing genetic diversity and productivity.","PeriodicalId":51802,"journal":{"name":"Forest Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134947960","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}

{"title":"Formulating biomass allometric model for <i>Paraserianthes falcataria</i> (L) Nielsen (Sengon) in smallholder plantations, Central Kalimantan, Indonesia","authors":"Md. Sazzad Hossain, Tomiwa V. Oluwajuwon, Afentina N. Ludgen, David P. Hasert, Marisa Sitanggang, Chinedu Offiah","doi":"10.1080/21580103.2023.2256355","DOIUrl":"https://doi.org/10.1080/21580103.2023.2256355","url":null,"abstract":"Abstract The forests in Central Kalimantan, Indonesia have been heavily impacted by logging, mining, fires, and other degradation activities for over 30 years. To address this, the Indonesian government has promoted community-based forest management schemes. One such scheme, called Hutan Kemasyarakatan (HKm), has introduced Sengon (Paraserianthes falcataria) in smallholder plantations in Rungan Barat, Gunung Mas, Central Kalimantan. However, accurate estimation of biomass is crucial for carbon sequestration credits, but there are no specific allometric models for estimating Sengon above-ground biomass (AGB) in this area. To create a site-specific AGB allometric model for Sengon, 23 trees were felled to collect fresh biomass data. Various tree variables, such as diameter at breast height: 1.3 m (DBH), total height, merchantable height, and stem bole volume were measured for each sample tree. The average wood basic density of Sengon at the study site was also calculated. A total of nine alternative candidate regression equations were fitted and tested to select the best-fit AGB allometric model. Also, to assess the adaptedness of the identified AGB allometric model, comparisons with the models from literature, and comparisons between two interchangeable methodologies (i.e. direct biomass allometric model and biomass expansion factor (BEF)-based biomass estimation) were undertaken. This study has developed a regression function, denoted as to estimate the AGB of Sengon trees in smallholder plantations in Central Kalimantan, Indonesia. The formulated regression function demonstrated better estimation performance compared to common pantropical and regional AGB allometric models. In terms of the BEF-biomass approach, the AGB estimation derived from Smalian’s volume was relatively accurate, close to the mean AGB obtained by the formulated model in this study. In summary, this study proposes using the developed model, based solely on DBH, to accurately estimate AGB and carbon sequestration potential in Sengon trees. The accurate estimation of AGB using this model has additional advantages, including facilitating carbon credit acquisition and informing long-term management decisions.","PeriodicalId":51802,"journal":{"name":"Forest Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135878568","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}

{"title":"Examining the adoption of agroforestry in Southern Rwanda: a double hurdle approach","authors":"Jules Ngango, E. Musabanganji, A. Maniriho, Ferdinand Nkikabahizi, Anitha Mukamuhire","doi":"10.1080/21580103.2023.2254317","DOIUrl":"https://doi.org/10.1080/21580103.2023.2254317","url":null,"abstract":"Abstract This article analyzes determinants of farmers’ adoption decisions for agroforestry practices and the extent of adoption in rural Rwanda. The study also investigates the key constraints hindering smallholder farmers to adopt agroforestry. The study uses the cross-sectional data from a sample of 615 farmers and Cragg’s double-hurdle model is used for the empirical estimation. The findings show that farmers’ land ownership, cooperative membership, farming experience, market orientation, credit access, and distance to the market mainly determine adoption of agroforestry. Policies that enhance adoption of agroforestry should be consider the formation of farmers’ cooperatives and provision of door-to-door education to uneducated farmers. In addition, strategies for supporting liquidity-constrained households to get continuous and increased access to credit should be put forward. Agricultural and resources development policies should direct efforts toward increased access to institutional support services such as better extension to farmers through cooperatives to promote the adoption of agroforestry.","PeriodicalId":51802,"journal":{"name":"Forest Science and Technology","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2023-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89430037","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}

{"title":"Germination and abscisic acid analysis in the seeds of forest resource trees after storage at different temperatures","authors":"Neil Patrick Uy, Jungwon Choi, Jajung Ku, Sanghyun Lee","doi":"10.1080/21580103.2023.2252001","DOIUrl":"https://doi.org/10.1080/21580103.2023.2252001","url":null,"abstract":"Abstract Abscisic acid (ABA) is a plant hormone that plays a significant role in various developmental and physiological processes in higher plants. In this study, ABA was quantified in Chamaecyparis obtusa, Pinus rigida × Pinus taeda, and Pinus densiflora seeds stored for 20 years at −18 °C, 4 °C, or 25 °C using high-performance liquid chromatography. At all temperatures, C. obtusa had the highest ABA concentration, followed by P. rigida × P. taeda and then P. densiflora. The germination rates of the seeds were also investigated. For the two Pinus species, there was an inverse relationship between ABA content and germination rate. However, as all C. obtusa seeds failed to germinate, no such correlation was observed for this species. This study provides important information for advancing ABA research in gymnosperms, which may provide insight into their physiological and biochemical mechanisms.","PeriodicalId":51802,"journal":{"name":"Forest Science and Technology","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2023-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88295926","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}

{"title":"The behavior of insect pollinators in a teak (Tectona grandis L. f.) clonal seed orchard with weedy understory in East Java","authors":"E. R. Palupi, S. Sudarsono, S. Sadjad, D. Solihin, J. Owens","doi":"10.1080/21580103.2023.2241497","DOIUrl":"https://doi.org/10.1080/21580103.2023.2241497","url":null,"abstract":"Abstract Teak is an insect-pollinated species, and seed production depends on pollinators. The objectives of this study were to determine potential pollinators of teak and their foraging behavior in obtaining alternate food sources as the basis for management recommendations. Four traps, i.e. Moczarsky-Winkler selector traps, sticky traps, yellow-pan traps, and manual traps (insect net), were put up among blooming inflorescences during the flowering period of March to May. Insects were collected and counted weekly and identified. The presence and location of the pollen on their bodies were observed. The time and duration of foraging behavior, the duration of a single visit, the number of visits in an hour, and the landing position when approaching the teak flower as well as the understory were also observed. The result showed Ceratina sp., and Braunsapis sp. (Apidae), Nomia sp. (Halictidae) were potential teak pollinators in the CSO in East Java. The insect foraging behavior supports the ability to deposit pollen onto the stigma. The presence of Mimosa pudica in the understory plays as an alternate food source for pollinators. Intensive weeding and trimming of old or dead branches should be less practiced to enhance pollinators’ populations and nesting sites.","PeriodicalId":51802,"journal":{"name":"Forest Science and Technology","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2023-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89527982","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}

{"title":"Non-timber forest product types and its income contribution to rural households in the Horn of Africa: a systematic review","authors":"Binega Derebe, A. Alemu","doi":"10.1080/21580103.2023.2231963","DOIUrl":"https://doi.org/10.1080/21580103.2023.2231963","url":null,"abstract":"Abstract Non-timber forest products (NTFPs) are those that come from forests other than those that provide timber. In order to identify the NTFPs’ financial contribution and usage categories based on regional and temporal patterns in the Horn of Africa countries, we performed a systematic review of 60 papers published between 2010 and 2022. The review used the search terms Non-Timber Forest Product* OR Non- Wood Forest Product*(NWFPs) OR Minor Forest Product in combination with Livelihoods and also Horn of Africa countries to thoroughly search the articles on the Google Scholar, Research4life, Scopus, Science direct, ResearchGate portals, EMBASE, and PubMed databases. The records contained information about the paper’s title, abstract, keywords, authors, country, NTFP income amount, NTFP usage type, and publication year. The recorded data were analyzed using R Studio, IBM SPSS Statistics 26, and Excel 2019. The majority of the research article for this review was done in Ethiopia (45%), Sudan (22%) and Kenya (17%), respectively. According to the review’s findings, NTFPs have a significant impact on rural household income in six nations, the average NTFP overall revenue was 24.41%. There were more than 35 NTFP uses and the source of product in the Horn of African Countries however, Gum Arabic, Food, Firewood, Medicinal plant, and honey were the five NTFP usage types that were used by people and found in almost in all countries of the Horn of Africa. The fact that different countries utilize different types of NTFPs, the most commonly used types of NTFPs have statistically significances differ (p < 0.05). According to the systematic review, the Horn of Africa is rich in NTFPs, which enhance rural income.","PeriodicalId":51802,"journal":{"name":"Forest Science and Technology","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2023-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90375803","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}

{"title":"Agroforestry farmers’ resilience in social forestry and private Forest programs during the COVID-19 pandemic in Indonesia","authors":"Sanudin  , A. Widiyanto, E. Fauziyah, L. Sundawati","doi":"10.1080/21580103.2023.2222156","DOIUrl":"https://doi.org/10.1080/21580103.2023.2222156","url":null,"abstract":"Abstract The COVID-19 pandemic has created impacts on various aspects of life and caused a shock to all sectors, including agriculture. The Indonesian government continues encouraging access for communities to be involved in forest management through social forestry programs Minister of Environment and Forestry Regulation No. 9 of 2021 on Social Forestry Management is Indonesia’s latest policy regulating social forestry. For Java Island, the social forestry program is regulated by the Minister of Environment and Forestry Regulation No. 39 of 2017. Traditional agroforestry has been carried out by farmers throughout Indonesia for a long time, both in state forest areas through social forestry programs and on private land dominated by woody tree species called private forests. This research aims to examine the resilience of agroforestry farmers in social forestry areas and private forest during the COVID-19 pandemic in Indonesia. This research was conducted in Garut and Bandung Districts, West Java Province, Indonesia, from May to July 2022. Interviews were performed with 219 respondents from six farmer groups: four groups that obtained social forestry permits through the recognition and protection of forestry partnerships (pengakuan dan perlindungan kemitraan kehutanan/KULIN KK) scheme and two groups in a private forest. The household livelihood resilience approach was used to analyze the agroforestry farmers’ resilience, comprised of financial, human, social, physical, and natural capital. Data were processed with a Likert scale (1, 2, and 3) and visualized using a spider diagram to compare and distinguish the five types of capital. The results showed the COVID-19 pandemic affected both social forestry and private forest farmers, where there was a decrease in agroforestry product prices and an increase in production input prices. These excluded private forest products, specifically cardamom, which has increased prices. Agroforestry farmers in the private forest have higher resilience than social forestry. These results highlight the need to increase financial capital, which has the lowest value for increasing household resilience. The level of resilience is influenced by the characteristics of farmers, especially their level of education, land ownership, and income. Based on the results, capital assistance, market access, and training related to post-harvesting are strategies for improving resilience. The results also contributed to efforts needed to increase the resilience of social forestry and private forest farmers during the COVID-19 pandemic. Further research is needed to determine the resilience of agroforestry farmers in social forestry and community forests after the COVID-19 pandemic.","PeriodicalId":51802,"journal":{"name":"Forest Science and Technology","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2023-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73382651","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}

{"title":"Assisted natural regeneration of selected tree species through silviculture interventions as a tool for restoring degraded natural forests in northwestern Ethiopia","authors":"Melkamu Kassaye, Amsalu Nigatu, Bahiru Gedamu, Yonas Derebe, Mulugeta Tamer, Fentahun Ayne, Etsegenet Emiru, B. Belay","doi":"10.1080/21580103.2023.2237985","DOIUrl":"https://doi.org/10.1080/21580103.2023.2237985","url":null,"abstract":"Abstract Natural forest ecosystem assets and services are increasingly deteriorating due to forest degradation and deforestation in Northern parts of Ethiopia. Enhancing the natural regeneration status of native tree species through different silviculture practices is highly Forest regeneration method recommended. Thus, this study aims to investigate the role of different silvicultural interventions in enhancing the regeneration condition of selected ecological and economical important tree species. Three natural forests stands from different agro-ecologies were chosen and three silvicultural treatments including Fencing, Fence + hoeing, Fence + gap creation, and control (without any intervention) with 400 m2 plot areas established with three replications and randomized complete block design (RCBD) with a total of 36 plots. In each plot, seedling, and saplings under different mod of regeneration were recorded while height and diameter at breast height were measured and analyzed using descriptive and inferential statistics using R version 4.1. There was a significant difference (p < .05) in seedling density and regeneration status among forest stands, methods of regeneration, silvicultural methods, and season of regeneration. The Camboo forest stand recorded the highest regeneration (971 seedlings ha−1); seedlings regenerated from seed recorded the highest regeneration (368 seedlings ha−1), fencing and gap creation silvicultural intervention recorded the highest seedlings (961 seedlings ha−1), the highest regeneration density was recorded at mid-rainy season (570 seedlings ha−1); and Prunus africana and Albizia gummifera have the best regeneration capacity (245 seedlings ha−1) in the study forest stand. The regeneration status of trees under fencing and gap creation plots changed from J-shape to an inverted J-shape before and after silviculture intervention, respectively. The regeneration and population structure of many studied tree species showed particularly good condition in fenced plots than control plots which shows future management interventions for the restoration of degraded natural forest ecosystems in Ethiopia’s tropical forest ecosystems. Some native tree species, such as Hagenia abyssinica, Apodytes dimidata, and Ekebrgia capensis, have a weak response to silvicultural treatments that require advanced regeneration techniques such as clonal nurseries and invitro propagation.","PeriodicalId":51802,"journal":{"name":"Forest Science and Technology","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2023-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79656390","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}

{"title":"Habitat suitability analysis in a natural peat swamp forest on Sumatran elephants using remote sensing and GIS","authors":"Muhammad Rendana, Wan Mohd Razi Idris, S. Abdul Rahim, Hazem Ghassan Abdo, Hussein Almohamad, Ahmed Abdullah Al Dughairi","doi":"10.1080/21580103.2023.2234463","DOIUrl":"https://doi.org/10.1080/21580103.2023.2234463","url":null,"abstract":"Abstract Context It is essential to assess the suitable habitat for elephants in order to mitigate the effects of forest fragmentation on conservation. Aims This study aimed to estimate the potential suitable habitats for Sumatran elephants in the fragmented forest in the Padang Sugihan wildlife reserve area in southern Sumatra, Indonesia. Methods The habitat suitability was analyzed using some environmental factors such as slope, elevation, land cover, distance to rivers, and distance to agricultural areas. The remote sensing, geographic information system (GIS), and MaxEnt model were used to determine the potential habitat suitability for Sumatran elephants. Results This study revealed areas of suitable habitat were evenly distributed throughout the study area, with the composition being suitable (45%), highly suitable (5%), and less suitable (50%). This study revealed the most suitable habitats were found in dense forest areas (gelam or Melaleuca cajuputi forest), which were highly affected by river adjacency, whereas agricultural areas resulted in constrained suitability and fragmentation of forested areas. Conclusions As a whole, the estimation of elephant habitat using remote sensing and GIS may guide the development of conservation strategies for elephant conservation in this region. KEY MESSAGE The Sumatran elephant (Elephas maximus sumatranus) is on the Red List of the International Union for Conservation of Nature as a species that is “Critically Endangered.” The population of elephants has steadily declined in the Sumatra region, which is characterized by peat swamp forests and a tropical rainforest climate and is vulnerable to habitat degradation.","PeriodicalId":51802,"journal":{"name":"Forest Science and Technology","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2023-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74030767","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}

{"title":"Improvement of seedling quality of red jabon (Neolamarckia macrophylla (Roxb.) Bosser) through seed sowing techniques and seed invigoration","authors":"N. Yuniarti, Yulianti  , Dede J. Sudrajat, Nurhasybi  , M. Zanzíbar, D. Syamsuwida, N. Mindawati, A. Junaedi, K. P. Putri, E. Rustam, N. Widyani, Yosephine Martha Maria Anita Nugraheni","doi":"10.1080/21580103.2023.2216208","DOIUrl":"https://doi.org/10.1080/21580103.2023.2216208","url":null,"abstract":"Abstract Red jabon (Neolamarckia macrophylla) is one of potential tree species, but there are some problems in its cultivation. Intermediate seed character and very small seed sizes with little food reserves often cause the low germination, low growth of the seedlings, and the sowing of the seeds to be too dense, resulting in an abnormal number of seedlings. The purpose of the research was to improve the seed germination and seedling quality of red jabon by adjusting the sowing density and seed invigoration treatment using hormonal and biopriming. Two experiments were conducted, that is, (1) identification of optimal seed density on the several combinations of sowing media (top soil, rice husk and compost) and (2) evaluation of the most suitable hormonal priming (GA3) and biopriming (liquid organic fertilizer, LOF) applications. The use of top soil media with a seed density of 0.5 g/400 cm2 can produce the highest pure live seed (PLS), that is, 721.67 seedlings/0.5 g. The seed treated by hormonal and bio-priming significantly affected the seed germination and seedling growth. Soaking seed in GA3 100 ppm for 4 days produced the highest of the PLS (764 seedlings/0.5 g), followed by soaking in LOF for 3 days and GA3 50 ppm for 4 days. The highest seedling height was generated from soaking the seeds using LOF for 3 days. The highest root collar diameter and biomass of red jabon seedlings were obtained from the treatment of seeds immersed in the GA3 50 ppm for 3 days. The best quality index value of red jabon seedlings was produced from the treatment of seeds immersed in the hormone GA3 50 ppm for 3 days. In general, a sowing density of 0.5 g/400 cm2 in top soil media and seed soaking treatment in GA3 50 ppm or LOF for 3 days can improve germination and growth of red jabon seedlings.","PeriodicalId":51802,"journal":{"name":"Forest Science and Technology","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2023-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84105915","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}