{"title":"Green Energy and Land Resources: COP27 Perspective of BRICS Economic Growth and Land Production","authors":"Yin-Pei Teng","doi":"10.1002/ldr.5295","DOIUrl":"10.1002/ldr.5295","url":null,"abstract":"<div>\u0000 \u0000 <p>In contemporary times, managing land resources and green energy from the COP27 perspective is a burning issue, attracting the attention of policymakers and scholars to attaining sustainable economic growth. In emerging economies, the adoption of both green energy and land resources is rapidly increasing to encourage economic productivity. In this regard, the current research explores the impact of oil resource fluctuations on the economic growth of the BRICS economies. In addition, this research contemplates the role of technological innovation, energy efficiency, and gross capital formation during 1990–2021. Using several econometric approaches, the results indicate the variables' stationarity and the cointegration between variables. Since most of the study variables follow a nonnormal distribution, this work employs a novel moments quantile regression. The estimation outcomes revealed that oil resource fluctuations, energy efficiency, technological innovation, and gross capital formation are substantial economic performance and growth drivers. The robustness of the empirical model is also tested via parametric (robust least squares) and nonparametric (quantile regression) approaches. Bidirectional causality estimates are reported between these variables except for the oil resource fluctuations that unidirectionally cause economic performance. Based on these estimates, this research recommends the sustainable management of oil resources and further investment in energy efficiency and technological innovation to attain sustainable economic performance.</p>\u0000 </div>","PeriodicalId":203,"journal":{"name":"Land Degradation & Development","volume":"35 17","pages":"5267-5280"},"PeriodicalIF":3.6,"publicationDate":"2024-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142436448","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Erosion and Deposition Patterns Over a Wind-Blown Sand Dune Behind a High Vertical-Type Sand Fence","authors":"Hongguang Dong, Jianjun Cheng, Yupeng Li, Yuanqing Chen, Ruoyuan Zhang, Donghe Chen","doi":"10.1002/ldr.5336","DOIUrl":"10.1002/ldr.5336","url":null,"abstract":"<div>\u0000 \u0000 <p>Sand dunes are the primary factor influencing wind-sand disasters. To explore the evolution law of wind-blown sand dunes surrounding high vertical-type sand fences along desert railways, numerical simulation analyses based on computational fluid dynamics coupled with a discreet element method of the wind-sand flow field and sand particles trajectories around sand fences were conducted. The focus of this study was the Yandun section of the Lanzhou-Xinjiang Railway in Xinjiang, China (42.38°N, 93.95°E). By combining ERA5 wind data with field measurements and monitoring, a three-dimensional coupling model was established. According to the results of <i>L9</i> (3<sup>3</sup>) orthogonal tests, the sensitivity of the three factors to the evolution of sand dunes can be ordered as wind speed > porosity > height, indicating that wind speed is closely related to sand dune evolution (<i>p</i> < 0.05). The results of single-factor tests indicate that the structure of wind-sand flow fields, sand accumulation patterns, and sand particle movement trajectories vary significantly under different wind speeds. The sand accumulation rates on the windward slope of the sand dune are 29.67%, 25.91%, and 20.04%, while on the leeward slope, these rates are 40.33%, 34.09%, and 29.96%, respectively. The obtained information on the evolution law of sand dunes surrounding high vertical-type sand fences provides a scientific basis for wind-sand prevention measures along railways in desert regions.</p>\u0000 </div>","PeriodicalId":203,"journal":{"name":"Land Degradation & Development","volume":"35 17","pages":"5452-5469"},"PeriodicalIF":3.6,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142405036","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Zhihui Yang, Jie Gong, Xia Li, Yonghao Wang, Yixu Wang, Guobin Kan, Jing Shi
{"title":"Gridded Grazing Intensity Based on Geographically Weighted Random Forest and Its Drivers: A Case Study of Western Qinghai–Tibetan Plateau","authors":"Zhihui Yang, Jie Gong, Xia Li, Yonghao Wang, Yixu Wang, Guobin Kan, Jing Shi","doi":"10.1002/ldr.5297","DOIUrl":"10.1002/ldr.5297","url":null,"abstract":"<div>\u0000 \u0000 <p>Overgrazing affects the grass-livestock balance and endangers grassland ecological security. Despite extensive studies conducted on identifying and quantifying grazing intensity, there is still room for improvement in the research on gridding grazing intensity, particularly in areas with limited data on the Qinghai–Tibet Plateau. Therefore, we proposed a grazing intensity spatialization method using geographically weighted random forest (GWRF) to gain further insights into the spatial heterogeneity of alpine grassland grazing intensity. This method incorporates multiple remote sensing data related to human activities and natural factors, as well as annual livestock statistics at the township level over several years, while adequately considering the spatial autocorrelation of grazing intensity. Additionally, we employed Lindeman Merenda Gold (LMG), the geographical detector model, and the structural equation model (SEM) to assess the contribution and influence path of driving factors to grazing intensity. We also utilize partial correlation analysis and dual-phase mapping to examine the impact of natural and human activities on the spatial distribution of grazing intensity. The results demonstrate that the GWRF-based grazing intensity spatial model accurately predicts grazing intensity by demonstrating its consistency with township-scale livestock data (<i>R</i>\u0000 <sup>2</sup> = 0.92 (<i>p</i> < 0.01), RMSE = 1.07). This provides valuable technical support for quantifying grazing intensity in alpine pastoral areas with limited data availability. We evaluate trends in grazing intensity and observe an increase in Gar and Purang counties. Furthermore, population density, normalized difference vegetation index (NDVI), and temperature are identified as three influential factors affecting grazing intensity in alpine pastoral areas. Additionally, other factors indirectly impact grazing intensity by influencing population density and NDVI levels, while their interactions amplify their overall influence. The dual-phase mapping technique has demonstrated a significant impact of population density on 45.92% (<i>p</i> < 0.01) of the study area, emphasizing the substantial influence of human activities on grazing intensity. Our study provides a novel framework for spatially analyzing grazing intensity and unraveling the intricated driving mechanisms behind spatiotemporal changes, particularly in areas with limited data availability.</p>\u0000 </div>","PeriodicalId":203,"journal":{"name":"Land Degradation & Development","volume":"35 17","pages":"5295-5307"},"PeriodicalIF":3.6,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142405058","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Exploring the Impact of Biochar-Dolomite Application at Different Pyrolysis Temperatures on Acid Sulfate Soil Properties","authors":"Syazwan Sulaiman, Namasivayam Navaranjan, Guillermo Hernandez-Ramirez, Zohrah Sulaiman, Kathereen Liew","doi":"10.1002/ldr.5296","DOIUrl":"10.1002/ldr.5296","url":null,"abstract":"<div>\u0000 \u0000 <p>The use of biochar as a soil amendment for acid soil, particularly acid sulfate soil, has garnered significant interest due to its capacity to improve soil properties, which is further accentuated when combined with dolomite. However, the extent to which the magnitude and direction of this effect vary with biochar produced at different pyrolysis temperatures remains uncertain. We conducted an incubation by mixing soil with dolomite and biochar types derived from <i>Melastoma malabathricum</i> (MMBC) and <i>Dicranopteris linearis</i> (DLBC) at three temperatures (300, 500, and 700°C). The incorporation of dolomite with both biochar types led to significant improvements in soil pH, available P, available Fe, exchangeable K, and exchangeable Ca compared to soil amended with dolomite only. These enhancements were likely attributed to the release of alkalinity, which further raised soil pH, as well as the direct dissolution of P, K, and Ca from the biochar. Moreover, the reduced Fe availability was likely due to the complexation of Fe onto surface functional groups of biochar. Furthermore, these improvements surpassed the effect of the initial feedstock and became increasingly pronounced with higher pyrolysis temperatures. However, an antagonistic effect of dolomite and biochar co-incorporation was observed, particularly in the relative reduction of soil exchangeable Mg with both biochar types, and a decrease in the soil available N with MMBC produced at 300 and 500°C compared to dolomite addition alone, which could be due to the adsorption of Mg and N onto biochar surface. The results indicate that concurrent application of dolomite and biochar can change the acid sulfate soil properties to varying magnitudes and in different directions, largely regulated by the characteristics of biochar as well as the probable interplay with dolomite. Consequently, selecting the appropriate biochar that aligns with the desired soil properties is crucial in managing dolomite-treated acid sulfate soil.</p>\u0000 </div>","PeriodicalId":203,"journal":{"name":"Land Degradation & Development","volume":"35 17","pages":"5281-5294"},"PeriodicalIF":3.6,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142405057","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Integrating Resilience Theory Into a Cultivated Land System: Empirical Insights From China's Key Grain-Producing Regions","authors":"Xiaonan Yin, Zhiyuan Li, Guoliang Xu, Chunyan Wan","doi":"10.1002/ldr.5307","DOIUrl":"10.1002/ldr.5307","url":null,"abstract":"<div>\u0000 \u0000 <p>Exploring cultivated land use and conservation from a resilience perspective is crucial to address regional food security concerns. This article first examines the theoretical applicability of resilience in the context of cultivated land use systems and subsequently introduces a specific concept of cultivated land system resilience (CLSR). Focusing on the middle reaches of the Yangtze River, a major grain-producing area in China, the study constructs a measurement system that encompasses five dimensions: endowment of production, socioeconomic factors, scale structure, ecological pressure, and food security. This system is used to evaluate the spatio-temporal evolution and influencing mechanisms of CLSR in the region from 2001 to 2020. The results indicate that the level of CLSR increased by 7.2% overall and exhibits a distinct spatial pattern, with high-value areas expanding from the center to the surrounding regions. Furthermore, CLSR shows a positive spatial correlation with rising levels of agglomeration. The spatial heterogeneity of CLSR is influenced by the interaction of various factors, resulting in a partially nonlinear two-factor enhancement. The influence of each factor varies between different time periods, shifting from ecological pressure to scale structure, ultimately affecting food security. Thus, the resilience perspective offers greater explanatory power to identify key vulnerabilities in the regional cropland system. This approach can improve the efficient allocation of cropland resources and promote sustainable and healthy development at the regional level.</p>\u0000 </div>","PeriodicalId":203,"journal":{"name":"Land Degradation & Development","volume":"35 17","pages":"5425-5438"},"PeriodicalIF":3.6,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142405347","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jiakai Liu, Jingwen Wang, Shiqiang Zhao, Bernard A. Engel, Mingxiang Zhang, Zhenming Zhang
{"title":"Can We Protect China's Northern Coast Wetlands From Tidal Dynamics by Restoring Native Species After Spartina alterniflora Is Eradicated? A Model-Based Analysis","authors":"Jiakai Liu, Jingwen Wang, Shiqiang Zhao, Bernard A. Engel, Mingxiang Zhang, Zhenming Zhang","doi":"10.1002/ldr.5308","DOIUrl":"10.1002/ldr.5308","url":null,"abstract":"<div>\u0000 \u0000 <p>In recent years, the Chinese government has implemented a series of initiatives with the objective of eradicating the invasive <i>Spartina alterniflora</i> along the entire coastline. This has given rise to concerns about the potential for subsequent coastal erosion and salt marsh shrinkage. This study introduces a novel contribution in the form of a model-based analysis, grounded in fieldwork from the Yellow River Delta, which assesses the potential of native <i>Suaeda salsa</i> as an alternative for coastal protection. Our approach is distinctive in that it not only compares the flow velocity reduction effects of <i>S. alterniflora</i> and <i>S. salsa</i>, but also evaluates the efficacy of three distinct planting patterns in managing tidal dynamics. In this study, we present a significant finding: while both species can mitigate tidal flow velocity, <i>S. alterniflora</i> shows superior performance, which represents a novel point of discussion in the field of coastal wetland management. Furthermore, our research indicates that dense aggregated planting patterns are particularly effective during storm surges, offering a strategic insight for future ecological engineering. However, we recognize the potential limitations of our approach, including the need for continuous management to control the spread of <i>S. alterniflora</i> and the necessity for further research to optimize the restoration potential of <i>S. salsa</i> under varying tidal conditions. Our findings highlight the importance of a balanced approach, suggesting the retention of a portion of <i>S. alterniflora</i> while also emphasizing the strategic planting of <i>S. salsa</i> in high-density configurations to enhance coastal resilience.</p>\u0000 </div>","PeriodicalId":203,"journal":{"name":"Land Degradation & Development","volume":"35 17","pages":"5439-5451"},"PeriodicalIF":3.6,"publicationDate":"2024-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142384929","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The Disturbance of Biocrusts Subsoil Stoichiometry by Grazing Could Not Compensate for Its Damage Effect","authors":"Jing Zhang, Qianwen Duan, Jie Ma, Fujiang Hou","doi":"10.1002/ldr.5280","DOIUrl":"10.1002/ldr.5280","url":null,"abstract":"<div>\u0000 \u0000 <p>Biocrusts play an essential role in maintaining ecosystem stability, which is common in arid and semi-arid areas. Although there have been some previous studies on the stoichiometry of biocrust subsoil in grazing systems, further research is needed to assess the effects of varying grazing intensities. Four grazing gradients were established to investigate the change mechanism of biocrust subsoil stoichiometry under grazing conditions, considering its seasonal response. These findings revealed that biocrusts' coverage and their chlorophyll content showed a parabolic trend of increasing and then decreasing with the increase in grazing intensity. At the same time, their standard response thresholds to grazing intensity ranged from 2.67 to 5.33 sheep/ha. Moreover, the premise that the biocrust is damaged by grazing trampling has become a consensus; our study found that the biocrust still played an important role, although its structure was destroyed because of its greenness (BG) increased. The influence of grazing intensity on the biocrust subsoil stoichiometry is unquestionable; in addition, they are influenced by a combination of vegetation (10% and 19%) and environmental influences (6% and 18%). Furthermore, it was observed that these changes did not compensate for the reproduction and development of biocrusts in grazing-induced trampling damage. In this study, the integrated consideration of biocrusts into the grazing system fully affirmed its essential role. Additionally, it clarified the pathways and effect of grazing on biocrusts subsoil stoichiometry, providing a new perspective and reference for developing grazing strategy on the Loess Plateau.</p>\u0000 </div>","PeriodicalId":203,"journal":{"name":"Land Degradation & Development","volume":"35 17","pages":"5078-5087"},"PeriodicalIF":3.6,"publicationDate":"2024-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142374206","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The Water, Food, and Energy Nexus: The Inclusive Roles of Governance and Finance in South Asia","authors":"Ali Furman, Anwar Khan, Syed Sumair Shah","doi":"10.1002/ldr.5302","DOIUrl":"10.1002/ldr.5302","url":null,"abstract":"<div>\u0000 \u0000 <p>This research aims to identify the intricate connections arising from finance and governance to water, food, and energy, utilizing data from 2000 to 2021 for eight South Asian countries. To address cross-sectional dependence and panel heterogeneity, this study applied an augmented mean group (AMG) approach to discover long-term connections across the chosen indicators. The estimators' outcome shows interconnectedness across water, food, and energy (WFE) resources, showing that water promotes food and energy, and food promotes water and energy. In contrast, energy fosters food production and reduces water availability. Further, governance positively influences food production (0.434%), water (0.044%), and energy consumption (0.142%). Likewise, finance positively and significantly responds to WFE consumption. Our results highlighted that governance unilaterally influences energy dynamics while bidirectional causal links emerge between finance, food, and energy. The obtained outcomes are re-validated with feasible generalized least square (FGLS) and Driscoll and Kraay (DK) estimators. Ultimately, our study offers valuable insights for shaping economic, environmental, and food and water security policies in the region and beyond.</p>\u0000 </div>","PeriodicalId":203,"journal":{"name":"Land Degradation & Development","volume":"35 17","pages":"5367-5385"},"PeriodicalIF":3.6,"publicationDate":"2024-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142374166","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"How Do Changes in Ecosystem Services Multifunctionality Influence Human Wellbeing? Evidence From the Yangtze River Delta Urban Agglomeration in China","authors":"Lumeng Liu, Yilin Liu, Lingqiang Kong, Zhen Zhong, Xuening Fang","doi":"10.1002/ldr.5292","DOIUrl":"10.1002/ldr.5292","url":null,"abstract":"<div>\u0000 \u0000 <p>A proclaimed goal of landscape management is to improve the multifunctionality of ecosystem services (ESs) to sustain higher levels of human wellbeing (HWB). Although the enhancement of ES multifunctionality is often considered to lead to better HWB, empirical evidence directly supporting this claim remains scarce. This study investigates the relationship between ES multifunctionality and HWB in rapidly urbanizing regions, using the Yangtze River Delta Urban Agglomeration in China as a case study. We quantified ES multifunctionality with the Gini-Simpson Diversity Index and identified ES multifunctional types using the bundle approach. We also calculated both the HWB mean score and HWB evenness score with the improved radar chart method, examining their relationships with ES multifunctionality through Spearman correlation analysis and the Kruskal–Wallis rank-sum test. Results showed that (1) ES multifunctionality exhibited varied relationships with HWB indicators, but overall showed significant negative associations with both HWB mean score and HWB evenness score. (2) Each HWB indicator significantly differed across the detected ES bundles, but none of the bundles exhibited the highest values of all HWB indicators. (3) HWB mean score and HWB evenness score were generally higher in the peri-urban bundle while lower in the agriculture and forest bundles. Our findings suggest that peri-urban landscapes can provide relatively higher and more balanced levels of HWB in urban agglomerations. This also implies that a “land-sharing” urban development model, which balances natural and built environments, may be more beneficial for enhancing ES multifunctionality and HWB compared with a “land-sparing” model, where natural and built areas are separated.</p>\u0000 </div>","PeriodicalId":203,"journal":{"name":"Land Degradation & Development","volume":"35 17","pages":"5224-5236"},"PeriodicalIF":3.6,"publicationDate":"2024-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142368814","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Soil Phosphorus Transport in Response to Climate Change at Mid-High Latitudes Under Intensive Agriculture","authors":"Hezhen Lou, Baichi Zhou, Xiaoyu Ren, Xijin Wu, Shengtian Yang, Sihan Liu, Fanghua Hao, Aiping Feng, Qi Wang","doi":"10.1002/ldr.5299","DOIUrl":"10.1002/ldr.5299","url":null,"abstract":"<div>\u0000 \u0000 <p>Phosphorus (P) is an important soil element for sustaining plant growth and the integrity of terrestrial ecosystems, and the soil P cycle is strongly influenced by climate change and agricultural activities. However, little is known about how soil P has evolved with climate change and intensive agriculture at mid-high latitudes, where the soil P cycle is sensitive to climate change. To answer this question, an ecohydrological model (EcoHAT-P) driven by remote sensing data was used in this study to calculate soil P concentration and loss and was calibrated and validated using 272 soil samples collected in the Sanjiang Plain, a typical mid-high latitude region with a long history of strong agricultural activity. Soil P concentration and loss, and plant uptake of soil P, were analyzed for the years 2000–2019 and 2020–2040. The results showed that soil total P, soil P loss, and plant P uptake all increased under intensive agriculture. The soil P cycle at mid-high latitudes was more sensitive to temperature than to precipitation. Increased temperature would increase soil P loss and plant P uptake by 93.94% and 8.16%, respectively, and soil legacy P from intensive agriculture would become the main source even if external P inputs were eliminated. The results highlight the evolution of soil P transport at mid-high latitudes and clarify the response of soil P cycle to climate change under intensive agriculture.</p>\u0000 </div>","PeriodicalId":203,"journal":{"name":"Land Degradation & Development","volume":"35 17","pages":"5327-5340"},"PeriodicalIF":3.6,"publicationDate":"2024-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142363113","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}