Catena最新文献

{"title":"The spatial and temporal distribution of freeze–thaw characteristics of near-surface soil in the Northeast of China and its influencing factors","authors":"Hao Shi ,&nbsp;Hongyuan Huang ,&nbsp;Jiale Chang ,&nbsp;Cheng Yuan ,&nbsp;Haoming Fan","doi":"10.1016/j.catena.2024.108644","DOIUrl":"10.1016/j.catena.2024.108644","url":null,"abstract":"<div><div>The Northeast region of China is located in mid-latitudes, characterized by large annual and diurnal temperature variations. This climatic characteristic creates conditions for frequent freeze-thawing erosion during the autumn freezing period and spring thawing period. An analysis of the freeze–thaw alternation process near the surface soil was conducted firstly. Based on this analysis, freeze–thaw frequency, intensity, temperature difference, and average soil moisture were calculated by utilizing reanalysis data of near-surface soil temperature, soil moisture, and daily maximum/minimum temperatures from 1990 to 2020, along with land use data for four periods. Sen’s slope and partial correlation coefficient methods were employed to determine spatial trends and correlations. The research results indicated that in the Northeast region, the annual intensity and frequency of near-surface soil freeze–thaw in the western region were significantly higher than those in the eastern region at the same latitude. Thawing frequency (5–50 cycles) was higher than freezing period (5–30 cycles), while freeze–thaw intensity during the freezing period (7–40 °C) was higher than the thawing period (2–40 °C). Regarding the correlation between freeze–thaw characteristics and driving factors, the partial correlation coefficients of freeze–thaw frequency and intensity with temperature difference were mainly positive, while the negative partial correlation coefficients with soil moisture were mostly distributed in regions with high or low soil moisture values. Among the seven main land use types in the study area, the magnitude of freeze–thaw frequency was as follows: water area &gt; unutilized land &gt; grass land &gt; dry fields &gt; paddy fields &gt; marshy land &gt; forest land, and the magnitude of freeze–thaw intensity was as follows: unutilized land &gt; grass land &gt; water area &gt; dry fields &gt; marshy land &gt; paddy fields &gt; forest land. These results are of significant importance for understanding the characteristics and changes of soil freeze–thaw in the Northeast region.</div></div>","PeriodicalId":9801,"journal":{"name":"Catena","volume":"249 ","pages":"Article 108644"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143182828","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Permafrost as a source of mineral weathering bacteria: Implications of active layer thickening on James Ross Island, Antarctica","authors":"Lenka Micenková ,&nbsp;Martin Kadlec ,&nbsp;Ivana Mašlaňová ,&nbsp;Ivo Sedláček ,&nbsp;Pavel Švec ,&nbsp;Vojtěch Kovařovic ,&nbsp;Roman Pantůček ,&nbsp;Michaela Kňažková ,&nbsp;Daniel Nývlt ,&nbsp;Filip Hrbáček","doi":"10.1016/j.catena.2024.108694","DOIUrl":"10.1016/j.catena.2024.108694","url":null,"abstract":"<div><div>Studying permafrost in Antarctica provides insights into climate history, soil and rock structure, and a unique biodiversity with potential impact on ecosystems. Although a great deal of effort has been devoted to the microbiological composition of permafrost soils, the objective pursued in this study is, for the first time, to examine soil and rock samples collected from a 350 cm deep core drilled near the Johann Gregor Mendel Czech Antarctic Station on the Ulu Peninsula of James Ross Island, to study the effect of geochemical properties on microbial composition and diversity and <em>vice versa</em>. We collected samples from the profile starting on the ground surface down to 350 cm depth and correlated information from metagenomic 16S rRNA gene analysis and geochemical data. The 80-cm-thick active layer had a distinct bacterial composition different from the <em>Pseudomonadota</em>-rich permafrost layer, with <em>Actinomycetota</em>, <em>Acidobacteriota</em>, <em>Chloroflexota</em>, and <em>Verrucomicrobiota</em> being the prevalent phyla. Throughout the core, the higher bacterial diversity was positively associated with the sand fraction and intensive weathering. The highest identified diversity in the deepest part of the active layer (transient active layer) suggests that the bacteria here have been gradually cryopreserved, possibly accumulating from the upper layers. In summary, the identified interface between the active layer and permafrost, as well as the transition within the permafrost from Holocene marine sediments to underlying Cretaceous sedimentary rocks (deeper than ∼ 260 cm), had the greatest influence on the bacterial composition. Decadal records of soil temperature and active layer thickness predict more significant interactions in the future between bacterial communities in the current active layer and mineral weathering bacteria that are typical of permafrost.</div></div>","PeriodicalId":9801,"journal":{"name":"Catena","volume":"249 ","pages":"Article 108694"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143181880","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Soil CO2 cycle models in karst critical zone: A case study of the soil–cave system","authors":"Meifang Wang ,&nbsp;Weijun Luo ,&nbsp;Yanwei Wang ,&nbsp;Guangneng Zeng ,&nbsp;Yina Lyu ,&nbsp;Jia Chen ,&nbsp;Xianli Cai ,&nbsp;Lin Zhang ,&nbsp;Anyun Cheng ,&nbsp;Shijie Wang","doi":"10.1016/j.catena.2025.108710","DOIUrl":"10.1016/j.catena.2025.108710","url":null,"abstract":"<div><div>Soil CO₂ release is the second-largest carbon flux between the atmosphere and terrestrial ecosystems, playing a critical role in regulating atmospheric CO₂ concentrations. However, the carbon flux estimation, especially regarding carbon exchange between soil and underground cracks or pipes in karst critical zone, remain poorly understood. From 2019 to 2021, we conducted a three-years field measurement in Shawan soil-cave system in Southwest China, to reveal the dynamics of CO₂ concentrations, temperature and moisture in the cave and the overlying soil profiles. We found that CO₂ was transmitted mutually between the cave and the overlying soil through diffusion and/or convection. Biotic processes constrained seasonal patterns of soil CO₂ concentrations, while precipitation and cave ventilation modulated vertical variations of soil CO₂. We highlighted that soil moisture governed short-term shifts of soil CO₂ in karst critical zone. The intensity of water–rock interaction at the bottom of soil profile controls the consumption or accumulation of soil CO₂. Cave ventilation and air diffusion can enhance CO₂ exchange at the soil-cave interface, altering CO₂ levels in the overlying soil. Based on these findings, we proposed four critical CO₂ cycle models for soil–cave systems in the karst critical zone, which are crucial for accurately estimating carbon fluxes in karst ecosystems.</div></div>","PeriodicalId":9801,"journal":{"name":"Catena","volume":"249 ","pages":"Article 108710"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143180671","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A methodological framework to quantify riparian corridor evolution by image classification and consecutive LiDAR analysis","authors":"Daniel Díaz Alba ,&nbsp;Rafael Jiménez Lao ,&nbsp;Diego García de Jalón ,&nbsp;Vanesa Martínez-Fernández","doi":"10.1016/j.catena.2025.108705","DOIUrl":"10.1016/j.catena.2025.108705","url":null,"abstract":"<div><div>Knowledge of the evolution of the riparian corridor in a context of increasingly regulated and anthropized rivers is a key element in river management and in the natural functioning of the river, both in their biotic and abiotic components. For the monitoring of these dynamic riparian spaces, it is essential to recurrently assess riparian vegetation growth and structure. In this sense, the use of LiDAR technology and the classification of images in a GIS environment greatly facilitate the task. In this article, a methodology for monitoring the evolution of riparian corridor structure and river channel forms in a novel and remote manner is presented and exemplified in the Tiétar river, a Mediterranean river with permanent flow. LiDAR flights from the years 2009 and 2019 (10 years apart) were analysed and compared. Vegetation height and density was measured using the indicator LPI (Laser Penetration Index) at different relative elevations with respect to the main channel. Segment typology was considered to analyse the results (i.e., confined vs. unconfined). Additionally, changes in channel forms were analysed through supervised classification of satellite images. The results showed an increase in corridor density at lower elevations, near the river bank and a loss of the altitudinal gradient of vegetation density in the unconfined segments. Regarding heights, there is an increase in the number of small-sized specimens at lower elevations and a decline in large-sized along the studied period. The methodology used in this study demonstrates the effectiveness of these technologies for monitoring forest ecosystems, as well as in the search for changes in the riparian corridor at previsously unattainable resolutions, accuracies and spatial coverages, which facilitates a deeper understanding and more effective management of these dynamic environments.</div></div>","PeriodicalId":9801,"journal":{"name":"Catena","volume":"249 ","pages":"Article 108705"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143181623","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Secondary succession increases diversity and network complexity of soil microbial communities in subtropical and temperate forests","authors":"Mengmeng Wang ,&nbsp;Yuanhu Shao ,&nbsp;Weixin Zhang ,&nbsp;Binbin Yu ,&nbsp;Zhifeng Shen ,&nbsp;Zongji Fan ,&nbsp;Weizhong Zu ,&nbsp;Guanhua Dai ,&nbsp;Shenglei Fu","doi":"10.1016/j.catena.2024.108662","DOIUrl":"10.1016/j.catena.2024.108662","url":null,"abstract":"<div><div>Clarifying the responses of soil microbial communities to long-term forest secondary succession is useful for predicting future effects of forest restoration and protection on soil communities and ecosystem functions. In this study, high-throughput sequencing was used to investigate soil bacterial and fungal communities at early, mid, and late successional stages spanning several centuries in a temperate forest and a subtropical forest in China. Succession increased diversity and altered the structure of bacterial and fungal communities, especially those of fungal communities, in both forest types. The late successional stage favored the maintenance of microbial network complexity in both forests and increased the potential positive links between bacteria and fungi. Total soil phosphorus and litter carbon in the subtropical forest and total soil nitrogen in the temperate forest were important drivers of the variation in soil microbial communities during succession. Collectively, the results suggest the following: old-growth forests have an irreplaceable role in maintaining high soil microbial diversity and complexity; fungal communities are more sensitive than bacterial communities to succession; and changes in soil and litter properties during succession have different effects on soil microbial communities in different forests.</div></div>","PeriodicalId":9801,"journal":{"name":"Catena","volume":"249 ","pages":"Article 108662"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143181874","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impact of farmland landscape characteristics on gully erosion in the black soil region of Northeast China","authors":"Jie Tang ,&nbsp;Yun Xie ,&nbsp;Hanquan Cheng ,&nbsp;Gang Liu","doi":"10.1016/j.catena.2024.108623","DOIUrl":"10.1016/j.catena.2024.108623","url":null,"abstract":"<div><div>Gully erosion on agricultural land severely damages land resources and affects agricultural production. Topographic features, tillage methods, and roads are major elements constituting the farmland landscape, but the effect of their distribution in the farmland on the gully erosion is still unclear. This study examined the long-term impacts of changes in the farmland environment and climate change on gully erosion over a long temporal scale of nearly 60 years, the results showed that farmland reclamation over the past 60 years had led to a 2324.2 % increase in gully length density and a 3563.3 % increase in gully area density. The increase in annual rainfall amount and the frequency of extreme rainstorms had led to a rapid increase of gully erosion intensity in the last decade, with an average development rate in length density and area density of 61.5 m km⁻² and 778.7 m² km⁻², respectively. Farmlands with slope aspects between 135 and 270° were more prone to gully erosion, which was related to the redistribution of snow on hillslopes caused by prevailing wind directions. Tillage methods and roads simultaneously affect gully erosion, with newly formed gullies located in farmlands and roadsides accounting for 63.0 % and 29.8 %. Gullies in regions where the angle between furrows and unpaved roads exceeded 70° accounted for 61.1 % of the total roadside gullies. Over the last decade, the annual average increase of gully length and area was 9.8 m yr^-1 and 246.1 m² yr^-1. The development rate of gully area was significantly correlated with the drainage area.</div></div>","PeriodicalId":9801,"journal":{"name":"Catena","volume":"249 ","pages":"Article 108623"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143182646","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pluvial conditions increased the risk of debris flows over the southern Hengduan Mountains: Evidence from tree-ring blue intensity and historical documents","authors":"Qianlu Zhou ,&nbsp;Keyan Fang ,&nbsp;Feifei Zhou ,&nbsp;Jiani Gao ,&nbsp;Hao Wu","doi":"10.1016/j.catena.2024.108690","DOIUrl":"10.1016/j.catena.2024.108690","url":null,"abstract":"<div><div>The Hengduan Mountains (HDM) region is sensitive to the Indian summer monsoon (ISM) and Pacific Ocean-atmosphere processes, and the hydroclimate strongly impacts the local and downstream agriculture and ecology. Numerous dendrochronology studies have been conducted in the northern HDM to understand the historical hydroclimate regimes. In this study, tree rings were collected from the southern HDM and robust chronologies were generated using tree-ring earlywood and latewood widths as well as blue light intensity (BI). Earlywood BI was used to reconstruct the regional spring–summer (February–July) self-calibrating Palmer Drought Severity Index (scPDSI) spanning from 1745 to 2017. An assessment of our reconstruction combined with historical documents revealed that wet epochs occurred in the 1790s–1810s and 1980s–2000s while dry periods occurred in the 1910s–1920s and 2000–2020s. The El Niño-Southern Oscillation (ENSO) strongly modulated the regional hydroclimate through teleconnection. In addition, anomalous spring–summer precipitation was associated with the occurrence of debris flows. The findings indicate that expected increase in regional precipitation extremes are likely to enhance the risk of geomorphological activities and mass movement in the HDM in the future, thus providing critical insights for disaster prevention and management in the context of climate change.</div></div>","PeriodicalId":9801,"journal":{"name":"Catena","volume":"249 ","pages":"Article 108690"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143182829","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Stoichiometric characteristics and factors influencing soil carbon, nitrogen, and phosphorus in various types of peatlands: A meta-analysis","authors":"Jennifer Ene Idoko ,&nbsp;Huai Chen ,&nbsp;Dan Xue","doi":"10.1016/j.catena.2024.108563","DOIUrl":"10.1016/j.catena.2024.108563","url":null,"abstract":"<div><div>Peatland ecosystems around the world exhibit distinct stoichiometric characteristics for soil carbon (C), nitrogen (N), and phosphorus (P), which are influenced by anthropogenic activities such as drainage. This study aimed to investigate the effects of drainage on C:N:P stoichiometry across various types of peatlands worldwide. A comprehensive global <em>meta</em>-analysis synthesized 735 pairwise observations from 41 published articles was conducted to examine the effects of drainage on the C:N:P stoichiometry of peat soils. The collected data included climatic variables such as mean annual temperature (MAT) and mean annual precipitation (MAP). Our findings indicate that drainage resulted in a significant increase in N content by 426.59%, while C content decreased by 20.95%. Additionally, drainage led to a significant increase in P content in bogs and swamps, whereas a decrease in P content was observed in fens. Overall, the C:N and C:P ratios significantly declined by 25.13% and 1.60%, respectively, while there was a notable positive increase in the N:P ratio by 499.24%. Climatic factors were found to influence C, N, P, and their ratios. The response ratios (RRs) of C and N increased with higher MAT, while the RRs of C:N ratios showed a decreasing relationship with an increase in MAT. Changes in drainage-induced P content, as well as C:N, C:P, and N:P ratios, exhibited a negative correlation with variations in MAP. The RRs of C and P contents showed a positive yet non-significant correlation with MAP. These findings contribute to a deeper understanding of global nutrient dynamics in peatlands, providing essential insights for ecological restoration and the effective management of these unique environments.</div></div>","PeriodicalId":9801,"journal":{"name":"Catena","volume":"249 ","pages":"Article 108563"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143181261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Quantifying the effects of the soil erosion factors on water-eroded slopes","authors":"Xinyu Zhang ,&nbsp;Shouhong Zhang ,&nbsp;Fan Zhang ,&nbsp;Hualin Li ,&nbsp;Jingyi Shi ,&nbsp;Jingqiu Chen","doi":"10.1016/j.catena.2024.108678","DOIUrl":"10.1016/j.catena.2024.108678","url":null,"abstract":"<div><div>The factors influencing soil erosion are diverse and complex. However, a comprehensive comparative analysis of the various factors remains insufficient. By collecting, selecting and summarizing related studies across China, this study established a comprehensive dataset that includes runoff depth (R) and soil loss (SL) under various soil erosion factors (soil order, land use, vegetation coverage, slope length, slope gradient, and precipitation), to identify erosion pattern in different runoff plots based on rainfall events. Results showed that the average runoff depth (WR) and weighted average soil loss (WSL) of observed water erosion events in China are 20.10 mm and 331.92 t/km², respectively. Semi-alfisols, amorphic soils, and pedocals reveal significantly higher R and SL. Forests prove most effective in mitigating soil and water loss, whereas grasslands and bare land exhibit similar runoff levels. Vegetation coverage of 40–60 % notably reduces both R and SL. R and SL fluctuate with the increase in slope length and slope gradient, but increase with growing precipitation. When the slope length exceeds 15 m and the gradient surpasses 25°, R and SL decrease significantly. Precipitation is the most significant factor impacting both R (contributing 58.70 %) and SL (contributing 30.25 %). This study underscores interactions among erosion factors and proposes multivariate linear regression models to predict R and SL based on these variables. It also contributes to clarifying the effects of erosion factors on slopes, providing a scientific basis for soil erosion modeling and control.</div></div>","PeriodicalId":9801,"journal":{"name":"Catena","volume":"249 ","pages":"Article 108678"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143182823","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evolution and migration patterns of sediments in an earthquake-affected catchment in Wenchuan, Sichuan Province, China","authors":"Junqi Chen ,&nbsp;Wen Zhang ,&nbsp;Changwei Lu ,&nbsp;Yanhao Zheng ,&nbsp;Hongcheng Liu ,&nbsp;Wankun Li ,&nbsp;Han Yin ,&nbsp;Jia Wang ,&nbsp;Yindong Wang","doi":"10.1016/j.catena.2025.108712","DOIUrl":"10.1016/j.catena.2025.108712","url":null,"abstract":"<div><div>Earthquakes of magnitude often contribute to changes in sediment availability, and those available sediments, once entrained by runoff, can lead to catastrophic debris flow events. Effective management of debris flow events in seismic areas relies on monitoring the changes in available sediments at the catchment scale and the movement mode of available sediments at the sedimentary deposits scale. For this reason, the present study integrates satellite remote sensing images, terrestrial 3D laser scanner, and field experiments to establish a monitoring framework across diverse spatial scales. This approach reveals the evolution and migration patterns of available sediments in the typical debris flow catchment Cutou gully in the Wenchuan earthquake area since the 2008 earthquake disaster. Accordingly, we can illuminate how sediment evolution responds to different disaster events and clarify the sediment migration patterns before and during debris flow disasters. It is found that the seismic events led to an increase in sediments available for mobilization within Cutou gully. For the available sediments involved in the debris flow, since some of the loosely consolidated active material sources were carried away by the debris flow, following the debris flow, they were more stable compared to those not involved in the debris flow. Available sediments migrated from the upper slopes with higher elevation to the debris flow channel with lower elevation due to surface runoff before and during the debris flow. Localized collapse at the toe of the sedimentary deposits occurred continuously in a retrogressive manner, mainly due to lateral erosion of the channel bank, which complements the magnitude of the debris flow.</div></div>","PeriodicalId":9801,"journal":{"name":"Catena","volume":"249 ","pages":"Article 108712"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143181620","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}