Trees最新文献

{"title":"Response of bamboo canopy density to terrain, soil and stand factors","authors":"Xiao Zhou,&nbsp;Xuan Zhang,&nbsp;Ram P. Sharma,&nbsp;Fengying Guan","doi":"10.1007/s00468-024-02552-3","DOIUrl":"10.1007/s00468-024-02552-3","url":null,"abstract":"<div><h3>Key message</h3><p>A\u0000nonlinear mixed effects canopy density model developed with\u0000predictor variables describing stand characteristics and soil nutrients\u0000provides a high prediction accuracy.</p><h3>Abstract</h3><p>Canopy density (CD) of a forest stand is an indicator of describing tree vitality, tree growth, competition status, environmental condition, and climate change. CD is substantially influenced by several site and environmental factors, such as soil, terrain, and stand factors. However, the CD prediction model developed utilizing the important site and environmental factors is still lacking. This study developed a nonlinear mixed-effects (NLME) CD model using data from 259 sample plots distributed across the moso bamboo (<i>Phyllostachys edulis</i>) forests in the eight provinces of southern China. Like fast-growing tree species, moso bamboo has high rates of growth and carbon sequestration, accumulating large amount of biomass in a short period. The CD model includes the effects of factors describing characteristics of terrains, soil and forest stands. The results showed that elevation significantly affected CD. The NLME CD model developed with the significant predictors included are: stand density (N), dominant height (DH), base area (BA), total nitrogen (TN), and soil organic carbon (SOC). When modeling random effects at the provincial level, the fitting accuracy of the model was significantly improved. Among several strategies used in calibrating NLME CD model or estimating random effects, an increased accuracy was obtained with increasing number of sample plots. However, using many sample plots per province to calibrate NLME CD model may increase the inventory costs with a little gain in the accuracy. Using the two medium BA-plots in each province, slope, and elevation or two largest BA-plots at the different slope-aspect could provide a compromise between measurement cost, model use efficiency, and prediction accuracy. NLME CD model can reduce measurement requirements in the field and support forest managers for more effective bamboo forest management strategies.</p></div>","PeriodicalId":805,"journal":{"name":"Trees","volume":"38 6","pages":"1353 - 1366"},"PeriodicalIF":2.1,"publicationDate":"2024-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142679728","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Growth decline and wood anatomical traits in Nothofagus dombeyi populations along a latitudinal gradient in the Andes, Chile","authors":"Rosario Guzmán-Marín,&nbsp;Minhui He,&nbsp;Sergio Rossi,&nbsp;Carmen Gloria Rodríguez,&nbsp;Rocío Urrutia-Jalabert,&nbsp;Antonio Lara","doi":"10.1007/s00468-024-02564-z","DOIUrl":"10.1007/s00468-024-02564-z","url":null,"abstract":"<div><p>There is evidence of recent declines in tree growth in the temperate forests of South America, due to the ongoing climate change. This study assessed growth-climate relationships and the xylem hydraulic architecture of coihue (<i>Nothofagus dombeyi</i> (Mirb.) Oerst) trees exposed to the warmer and drier conditions of recent decades. We selected four coihue populations along a latitudinal gradient in the Andes, Chile, corresponding to a wide range of variation in growing season precipitation (northern dry to southern wet sites). Tree-ring width was measured in 24–32 adult trees per site during the last 60 years. We measured wood anatomical traits in a subsample of four trees per site during the last 25 years. All data were correlated with climatic variables. During the studied period, SPEI-6 passed from positive to negative in all sites. Basal area increment decreased by 1.7 mm² year⁻¹ over the period 1960–2020. Tree-ring width had a positive correlation with precipitation at the drier sites and a negative correlation with maximum temperature at the wetter populations. We estimated a density of 1.78 × 10^–4 and 1.2 × 10^–4 vessels µm⁻² in the xylem of dry and wetter sites, respectively. Vessel density had a negative correlation with precipitation at the driest site and a positive correlation with maximum temperature at wetter sites. The hydraulic diameter was smaller under drier conditions, reaching 68–75 µm in the driest and wettest sites, respectively. Among the traits measured, vessel density was the most sensitive to climate. Drier and warmer conditions were associated with an increased number of smaller sized vessels, especially at the northern populations. Compared with the southern populations of our gradient, the northern populations growing at the drier sites are more sensitive to the ongoing changes in climate, and potentially more vulnerable to the even drier conditions projected for the future.</p></div>","PeriodicalId":805,"journal":{"name":"Trees","volume":"38 6","pages":"1443 - 1457"},"PeriodicalIF":2.1,"publicationDate":"2024-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142679737","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessing wood grain and twist in a 2-year-old Eucalyptus bosistoana breeding population","authors":"Monika Sharma,&nbsp;Stephanie M. Dijkstra,&nbsp;Ashley Garrill,&nbsp;David A. Collings,&nbsp;Clemens M. Altaner","doi":"10.1007/s00468-024-02567-w","DOIUrl":"10.1007/s00468-024-02567-w","url":null,"abstract":"<div><h3>Key message</h3><p>Radial grain patterns in young <i>E. bosistoana</i> trees are not random but are under genetic control and are correlated to other properties. Detailed high-resolution grain assessments match results from economical larger resolution techniques.</p><h3>Abstract</h3><p>Interlocked grain affects stem properties and timber value. <i>Eucalyptus bosistoana</i> is an emerging plantation species that is supported by a breeding programme, and which shows prominent interlocked grain. Grain assessments are difficult, either restricted in their spatial resolution or resource demanding. Comparative analysis of flexible and high-resolution X-ray microtomography grain measurements were shown to match the economical splitting test. Splitting demonstrated that, on average, grain in the 2-year-old <i>E. bosistoana</i> trees was straight close to the pith becoming slightly left-handed over the first 4 mm, but then developing a strong right-handed twist reaching an average of almost 5° by 12 mm. There was, however, a large degree of variability. Further, grain measures obtained from splitting tests correlated to the observed twisting of the stems. Lastly, twisting of timber was under genetic control. The combination of a heritability (<i>h</i>^<i>2</i>) value of 0.34 and a coefficient of genetic variation value (r_g) of 44% means that our assessment techniques for young trees could be incorporated into a breeding programme.</p></div>","PeriodicalId":805,"journal":{"name":"Trees","volume":"38 6","pages":"1481 - 1489"},"PeriodicalIF":2.1,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00468-024-02567-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142679696","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Depressed root morphology and altered hormone signaling in Toona sinensis brought about by different forms of excessive nitrogen","authors":"Xiaochi Yu,&nbsp;Fei Yi,&nbsp;Xiaoxi Wang,&nbsp;Bingyang Liu,&nbsp;Yue Fei,&nbsp;Peng Zhang,&nbsp;Junhui Wang,&nbsp;Wenjun Ma","doi":"10.1007/s00468-024-02566-x","DOIUrl":"10.1007/s00468-024-02566-x","url":null,"abstract":"<div><p><i>Toona sinensis</i>, a precious tree species native to China, faces severe excessive nitrogen (N) stress due to escalating nitrogen deposition. The effects of excessive N (NO₃⁻, NH₄⁺ and NO₃⁻ + NH₄⁺) on root morphology and physiology were investigated in 1-year-old <i>T. sinensis</i> seedlings. Under excessive NH₄⁺, root morphology traits like root surface area and volume were inhibited, and under excessive NO₃⁻, root length, surface area, and volume were more significantly suppressed. However, a minimal decrease in branch number, apical number, specific root area, and specific root length was observed under excessive NO₃⁻ + NH₄⁺. Under excessive NO₃⁻ or NH₄⁺, the activity of N-metabolizing enzymes such as glutamine synthetase (GS), glutamate synthetase (GOGAT), nitrate reductase (NR), and nitrite reductase (NiR) in roots decreased. Under excessive N, the indole acetic acid (IAA) content in roots decreased, while the contents of abscisic acid (ABA) and cytokinins (CTK) increased. Overall, excessive NO₃⁻ or NH₄⁺ induced nutrient overload, which inhibited root development in <i>T. sinensis</i>. On the other hand, hormone signaling was also modulated in response to excess N, and root morphology changed. These findings enhance our understanding of the effects of excessive N stress on <i>T. sinensis</i> and provide guidance for its plantation production.</p></div>","PeriodicalId":805,"journal":{"name":"Trees","volume":"38 6","pages":"1469 - 1479"},"PeriodicalIF":2.1,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142679695","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Foliar application of myo-inositol inhibits the growth of trifoliate orange (Poncirus trifoliata) seedlings by inducing alterations in cell wall structure and energy metabolism disorders","authors":"Yuemei Xu,&nbsp;Yuhua Chen,&nbsp;Gaofeng Zhou,&nbsp;Guidong Liu","doi":"10.1007/s00468-024-02560-3","DOIUrl":"10.1007/s00468-024-02560-3","url":null,"abstract":"<div><h3>Key message</h3><p>Exogenous <i>myo</i>-inositol induces alterations in leaf cell wall structure and energy metabolism disorders, which may contribute to growth inhibition of trifoliate orange seedlings.</p><h3>Abstract</h3><p><i>Myo</i>-inositol (MI) is widely distributed in all living organisms as a central molecule. In plants, de novo biosynthesis of MI is known to function in multiple aspects of plant growth and development. However, the consequences of MI accumulation in regulating plant growth, especially by exogenous supply, have received little attention. In this study, we characterized cell wall structure, target metabolites in energy metabolism, and gene expression changes related to MI metabolism after foliar application of MI to trifoliate orange seedlings. We observed that exogenous MI increases leaf and root MI levels and inhibits plant growth and dry mass accumulation in trifoliate orange seedlings. Additionally, we detected the downregulation of <i>PtrMIPS</i> and upregulation of <i>PtrMIOXs</i> in leaves due to the application of MI. Structural characterization and targeted metabolomics analysis revealed that exogenous MI induces alterations in leaf cell wall structure and energy metabolism disorders, which may contribute to growth inhibition of trifoliate orange seedlings. We propose and discuss a model to explain how exogenous MI exerts a negative impact on trifoliate orange seedling growth.</p></div>","PeriodicalId":805,"journal":{"name":"Trees","volume":"38 6","pages":"1391 - 1402"},"PeriodicalIF":2.1,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142679524","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Micropeltation in Myrtaceae: a neglected subject","authors":"Veit M. Dörken,&nbsp;Philip G. Ladd,&nbsp;Robert F. Parsons","doi":"10.1007/s00468-024-02565-y","DOIUrl":"10.1007/s00468-024-02565-y","url":null,"abstract":"<div><p>The majority of taxa with peltate leaves are perennial herbs native to swampy or aquatic habitats or to mesic shaded understorey habitats. These large peltate leaves are formed by a meristematic bridge at the lamina–petiole junction. However, there are also several strong-light exposed, small-leaved, xero- and scleromorphic Myrtaceae with leaf peltation which is formed without a meristem fusion/bridge. Here, abaxial laminar tissue at the insertion point of the petiole forms a basal extension, so that a weak peltation occurs. This shifts the petiole onto the adaxial laminar surface. The formation of micropeltation in Myrtaceae leads to erect leaves that are strongly appressed to the shoot axis and the entire foliate, vertical shoots appear as “green columns”, a result that is also the case in taxa with reflexed minute leaves. It seems that micropeltation achieves the same goal as leaf reflexion in small-leaved taxa—reduction of heat-load and transpiration during the hottest phases of the day by a lower light interception at midday compared to the morning and evening. Thus, physiologically micropeltation and reflexion of minute leaves seem to be the result of convergent evolution.</p></div>","PeriodicalId":805,"journal":{"name":"Trees","volume":"38 6","pages":"1459 - 1467"},"PeriodicalIF":2.1,"publicationDate":"2024-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00468-024-02565-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142263802","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Improving the equation of nonlinear relationships between cell anatomical parameters of conifer wood","authors":"Liliana V. Belokopytova,&nbsp;Dina F. Zhirnova,&nbsp;Nivedita Mehrotra,&nbsp;Santosh K. Shah,&nbsp;Elena A. Babushkina,&nbsp;Eugene A. Vaganov","doi":"10.1007/s00468-024-02559-w","DOIUrl":"10.1007/s00468-024-02559-w","url":null,"abstract":"<div><h3>Key message</h3><p>We propose an improved exponential equation for the nonlinear dependence of cell measurements on the seasonal cell production in conifer wood. These changes shall simplify the model towards ease in understanding, interpretation and analysis.</p><h3>Abstract</h3><p>With methodological development, quantitative parameters of wood cellular structure have featured as dendroclimatic indicators in various studies. But to disentangle climatic impacts in different wood anatomical characteristics, relationships between them have to be described quantitatively and extricated. This study investigates exponential description of the non-linear dependences of conifer wood cell measurements on their seasonal production in cambial zone. Improvement to the equation of exponential model was suggested, simplifying the interpretation and analysis and providing biological meaning to all numerical parameters of the model. This new equation was demonstrated for 630 tree rings from 20 to 40-year-old trees of Siberian spruce (<i>Picea obovata</i> Ledeb.) in Siberia, collected at the experimental plantation, as well as for its subsets from plots of various planting density, demonstrating plausible value of the new proposed numerical parameter of model and dependence of the other parameter on the stand density, probably based on the tree height. Limitation for successful fitting of this exponential model was demonstrated, based on representativity of wide and narrow rings within sample; we proposed possible way to overcome it in certain cases.</p></div>","PeriodicalId":805,"journal":{"name":"Trees","volume":"38 6","pages":"1593 - 1599"},"PeriodicalIF":2.1,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142198641","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ellipse or superellipse for tree-ring geometries? evidence from six conifer species","authors":"Weiwei Huang,&nbsp;Kehang Ma,&nbsp;Daniel K. Gladish","doi":"10.1007/s00468-024-02561-2","DOIUrl":"10.1007/s00468-024-02561-2","url":null,"abstract":"<div><h3>Key message</h3><p>Tree-ring shapes of the six studied coniferous species tend to be bilaterally symmetrical, and the superellipse equation is sufficient to describe the tree-ring boundaries and estimate the basal area increment.</p><h3>Abstract</h3><p>In nature, under environmental pressures, such as wind, slope, water availability, etc., tree-ring shapes in most cases appear to be elliptical rather than circular. Compared with the ellipse equation, the superellipse equation includes an additional parameter that allows the generation of a larger range of geometries: hypoellipse, ellipse, and hyperellipse. The more complex Gielis equation can generate asymmetrical shapes. In the present study, we modeled the geometries of tree-rings for six coniferous species using the superellipse equation (i.e., the three-parameter model) and the more complex Gielis equation (i.e., the five-parameter model). The species-specific mean value of <i>n</i> approached 2 and the <i>k</i>-value was lower than 1, which confirmed that most tree-ring shapes of the studied coniferous species were closer to an ellipse rather than a circle. However, based on superellipse equation the <i>n</i>-value and <i>k</i>-value both showed an inter-annual fluctuation that ranged between 1.75–2.25 and 0.82–1.00, respectively. This suggests that most samples of tree-rings did not follow the typical ellipse equation, but the superellipse equation. Although the Gielis equation is slightly better in the goodness of fit than the superellipse equation, 86.67% of the percent errors (PEs) of RMSE_adj between these two equations were smaller than 5%, which means that the superellipse equation is better given the trade-off between the model structural complexity and goodness of fit. Most tree-ring shapes tend to be bilaterally symmetrical, and the three-parameter superellipse equation was verified to fit the tree-ring boundaries and estimate the inter-annual increments of tree-ring area well.</p></div>","PeriodicalId":805,"journal":{"name":"Trees","volume":"38 6","pages":"1403 - 1413"},"PeriodicalIF":2.1,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142198610","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Residents and their trees: a quali-quantitative study of preferences, attitudes and social factors affecting trees planted in private yards in China","authors":"Ang Zhang,&nbsp;Peter A. Vesk,&nbsp;Margaret J. Grose","doi":"10.1007/s00468-024-02550-5","DOIUrl":"10.1007/s00468-024-02550-5","url":null,"abstract":"<div><p>Trees in private yards are subject to a complex assortment of interacting ecological, social, cultural and economic factors, including individual preferences, social networks, multiple stakeholders and social constraints. This study explored residents’ attitudes towards yard trees in China and determined the social factors shaping yard trees and yard tree planting. Nearly 300 questionnaires were collected in-person and online in urban and rural villages and communities in Zhoukou city, Henan. Most trees planted in yards were intentionally planted. Yard size was the main constraint on the number of trees in a yard with respondents repeatedly citing the lack of space as a deterrent to planting trees or planting more trees. The most popular attributes for trees planted in yards were symbolism and edibility. Residents’ attitudes were based upon tree functions. The willingness and attitudes of residents towards yard trees suggested that an increase in yard trees would be supported by residents, who appeared to be yearning for a green living environment. However, a lack of preference found for native species suggests a challenging future for native trees in yards in regard to their role in biodiversity and habitat formation. Men played the dominant role in activities associated with yard trees. Residents were keen to aid wider ambitions for greening through their own tree planting in yards, but need guidance via policies and incentives. Such moves at high levels of government will assist the achievement of sustainable development goals in the future China, such as increased city canopy and carbon targets.</p></div>","PeriodicalId":805,"journal":{"name":"Trees","volume":"38 5","pages":"1255 - 1266"},"PeriodicalIF":2.1,"publicationDate":"2024-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00468-024-02550-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142198640","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Chlorophyll fluorescence and sap flow in eastern red cedar (Juniperus virginiana) in both the growing and nongrowing season in Kentucky","authors":"Richard L. Boyce","doi":"10.1007/s00468-024-02554-1","DOIUrl":"10.1007/s00468-024-02554-1","url":null,"abstract":"<div><h3>Key message</h3><p>Red cedar chlorophyll fluorescence remains high during the nongrowing season, while transpiration is reduced.</p><h3>Abstract</h3><p>Evergreen trees retain their leaves during the winter and thus can photosynthesize when conditions permit. Eastern red cedar (<i>Juniperus virginiana</i>) is widely distributed in the eastern USA and is known to transpire and photosynthesize outside of the growing season. However, most recent work has been done in the Great Plains, which red cedar has recently invaded, while little work has been done in its original range. I hypothesized that red cedar would behave like other conifers from summer drought-free areas and show reduced chlorophyll fluorescence and transpiration during the winter. Four red cedar trees at a site near the Ohio River in Kentucky were equipped with Granier sap flow probes, while solar irradiance, temperature, relative humidity, and soil volumetric water content (VWC) were measured at the site. Dark chlorophyll fluorescence (<i>F</i>_v/<i>F</i>_m) was measured on northern and southern aspects on an approximately weekly basis from early 2019 through mid 2021. High values of <i>F</i>_v/<i>F</i>_m were measured in both growing (April-September) and nongrowing (October-March) seasons; median values in the nongrowing season were 94% of those in the growing season, which did not support my hypothesis. <i>F</i>_v/<i>F</i>_m data were fit to a Michaelis–Menten curve that used minimum temperature of the previous two nights, aspect, and maximum irradiance on the day of measurement taken before fluorescence was measured. Sap flow was explained by maximum daily temperature, vapor pressure deficit (VPD), mean daily irradiance, and VWC. Sap flow in the nongrowing season was 74% of that seen in the growing season, due to lower values of temperature, VPD, and irradiance, supporting my hypothesis. Thus, red cedar remains physiologically active during the nongrowing season. However, it does not appear to behave like other conifers from summer drought-free areas.</p></div>","PeriodicalId":805,"journal":{"name":"Trees","volume":"38 5","pages":"1315 - 1322"},"PeriodicalIF":2.1,"publicationDate":"2024-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142198639","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}