Subjects: Geosciences >> Geography submitted time 2024-01-07 Cooperative journals: 《干旱区地理》
Abstract：兵地旅游融合发展是实现兵地经济社会高质量发展的内在要求与有效途径。为促进兵地旅游系统的要素合理流动与资源优化配置，基于共生理论，运用可达性模型、旅游经济联系强度模型、核密度估计、平均最近邻分析、泰森多边形等方法研究兵地旅游的资源共生演化、经济联系变化、网络结构特征，探究兵地旅游共生发展的模式、格局与机制。结果表明：（1）兵地旅游资源空间集聚特征不断增强，资源开发处于偏利共生关系。（2）兵地旅游资源非均衡共生特征明显，呈现兵团依附地方、弱势依托强势共生分布特征，形成中央一心多点外围多心多点共生演化格局。（3）可达性呈现中心外围圈层递减结构，依托旅游交通网络形成偏利共生纽带。（4）旅游经济联系具有距离衰减、南北差异、兵地差距、同城效应特征。（5）归纳兵地旅游间歇寄生、间歇偏利共生、互惠共生的区域共生模式，文化共生、资源共生、产业共生主次递进和主客互动的要素共生维度，一核三点八心两圈三带的共生发展格局与各美其美美美与共和合同美的共生发展机制。
Subjects: Geosciences >> Geology submitted time 2023-09-19 Cooperative journals: 《干旱区地理》
Abstract： The in-depth implementation of aid policy for Xinjiang promotes the efficiency of tourism aid in theregion and improves the high-quality development of its tourism economy. Based on the three-stage data envelopment analysis and Tobit model, this paper measured the factors influencing the efficiency of tourism aid in Xinjiang from 2015 to 2019 and regional differences. The results show that: (1) Environmental factors have a strong influence on tourism aid efficiency. Overall, there is a large margin for improvement in tourism aid efficiency,which is mainly affected by efficiencies of scale. The trend of efficiency value change is pure technical efficiency>scale efficiency>comprehensive efficiency, and a distribution pattern corresponding to high values in thenorth of the region and low values in the south is evident. (2) Regional dummy variables, investment level, percapita educational investment, and attraction of tourism resources significantly improved efficiency. (3) From theperspective of vertical and horizontal compatibility and internal and external suitability, the mechanism influencing the efficiency of tourism aid in Xinjiang is summarized as comprising three periods, three dimensions, andseven aspects, and the changes and evolutionary course of tourism aid in Xinjiang are identified. The results havetheoretical value and a meaningful reference for the macro-adjustment of aid policy in Xinjiang and the optimalallocation of aid resources in the future.
Subjects: Environmental Sciences, Resource Sciences >> Basic Disciplines of Environmental Science and Technology submitted time 2019-06-14 Cooperative journals: 《干旱区地理》
Abstract：在GIS技术支持下，基于旅游交通可达性视角，构建旅游经济联系模型，运用社会网络分析方法，确定沿线城市在旅游经济联系网络中的角色，结果表明：高铁时空压缩效应促使沿线城市旅游交通可达性和旅游经济联系普遍提升，但提升幅度具有空间差异性，廊道东侧城市优于西侧城市，各省区旅游经济基础较好城市优于基础较差城市；旅游网络结构日趋紧密，城市间旅游互动与合作逐渐频繁，区域旅游经济联系呈现协调发展趋势。深入剖析9个城市的网络角色对兰新廊道旅游空间发展模式提出相关建议：沿线地区应充分发挥乌鲁木齐、兰州核心城市的功能，同时利用酒泉次核心的集聚与扩散作用，发挥嘉峪关、张掖、西宁重要旅游目的地的承转作用，带动吐鲁番、海东、哈密等边缘城市，打造西北“旅游+高铁”丝绸之路黄金线。
Subjects: Other Disciplines >> Synthetic discipline submitted time 2017-03-22 Cooperative journals: 《中国科学院院刊》
Abstract：在微生物组技术体系中，农作物微生物组具有较好的研究基础和广阔的应用前景，已经处于从基础研究成果向田间应用转化的关键时期。目前，该领域在农作物-微生物组-土壤环境之间的相互关系，益生菌及其功能基因对作物生长发育的影响，微生物组改善农作物氮、磷、铁等元素高效吸收，微生物组提高植物先天免疫反应和抗多种环境胁迫等方向取得了突破性的研究进展。发达国家和跨国农业公司在该领域持续加强投入，基于农作物微生物组研究的成熟产品迅速开拓市场，已成功应用于作物栽培和生产。相关技术在减少化学肥料和农药的使用、大幅提高农产品产量与品质方面展现出了巨大的应用前景。我国在农业可持续性发展方面存在农药肥料滥用、环境污染、病害威胁严重等重大问题，农作物微生物组学及相关技术的发展将为解决这些问题提供强有力的技术支撑。为此，我国亟待在农作物微生物组项目规划、人才队伍培养、创新价值链培育和产业化方面进行调整，促进农作物微生物组的研究和技术发展，为保障国家粮食安全和食品安全作出重大贡献。
Subjects: Geosciences >> Geography submitted time 2023-05-17 Cooperative journals: 《干旱区地理》
Abstract： This study empirically explores the effect of intercity trains on the high-quality development of tourism economy in Xinjiang, China using a multi-period difference-in-difference model and based on the municipal panel data from 2010 to 2019. It also measures the evaluation index of the high-quality development of the tourism economy through the entropy value assignment method. The conclusions of this paper are as follows: (1) The study revealed an uneven high-quality tourism economic development in Xinjiang, and its evolution pattern is “monocentric radiation→bicentric radiation”. (2) The presence of intercity trains effectively improves the highquality development of tourism economy in northern Xinjiang with negative adjustment effect and has no significant indigenous influence on southern Xinjiang with positive adjustment effect. (3) Intercity trains have significant influence on medium-level cities with high-quality development of tourism economy but have no significant influence on high-level cities and low-level cities. (4) The significant positive effect of the intercity trains on impact mechanism of development dimension is innovative development>shared development>green development> open development, and the impact on the coordinated development is not significant. This study enriches the classic cases of the integrated development of“railway+tourism”and helps explore the path mode of high-quality integrated development of intercity train and tourism economy.
Subjects: Environmental Sciences, Resource Sciences >> Basic Disciplines of Environmental Science and Technology submitted time 2019-03-07 Cooperative journals: 《干旱区地理》
Abstract：以新疆74个县域单元为研究对象选取多个指标，利用ESDA、ArcGIS和GeoDa等分析方法和手段及动态面板数据模型，分析2008—2017年新疆县域单元旅游经济空间格局演变特征地域差异及驱动机制。结果表明：（1）县域旅游经济集聚特征呈“下降―上升―下降―上升”的态势，彼此之间差异明显，集聚性存在显著的由北向南梯度增强的格局特征。（2）县域旅游经济的“多核心、多条带”分布逐渐形成，但并未改变“北热南冷”的分布格局。（3）受“东北-西南”方向牵引力影响，旅游经济重心轨迹变化呈多个“V”字型重叠分布，也使标准差椭圆的覆盖范围也在此方向上逐渐增大。（4）旅游资源禀赋和政策支持是影响县域旅游经济格局演变的主要驱动因素。交通条件的改善和人力资本水平的提高并非都能促进各县域旅游经济的发展，各影响因素在不同区域间存在明显的强度差异。
Subjects: Other Disciplines >> Synthetic discipline submitted time 2023-03-28 Cooperative journals: 《中国科学院院刊》
Abstract： In the past 60 years, the highly-intensive and unreasonable farming of the black soil in Northeast China has brought a series of adverse consequences such as the reduction of organic matter, the serious imbalance of carbon and nitrogen, and the instability of microbiota, which seriously threaten China’s food security and agricultural sustainable development. The decrease of organic matter content in black soil is the core issue in the degradation of black soil. Organisms are the source of all organic matter, and the dynamic balance of organic matter driven by organisms is the basis for maintaining the stability of farmland ecosystem and soil quality. However, the limitation of hydrothermal resources in Northeast China makes it difficult to realize the transformation of organism-driven soil organic matter, which restricts the improvement of black soil quality and the development of conservation tillage technology. Recently, the Chinese Academy of Sciences has launched the strategic priority program “Scientific and Technological Innovation Project for Black Soil Protection and Utilization (Black Soil Granary)”, and set up the key task of “modern biological technology for improving the productivity and quality of black soil”. Focusing on majorm scientific issues including the mechanism of soil organic matter dynamic balance driven by organisms such as green manure, and the biological mechanism of low-temperature decomposition of straw, the key task aims to develop revolutionary and disruptive biotechnologies to solve the bottleneck of transformation technology of black soil organic matter, hence to promote the benign balance of material circulations and ecological functions. This will provide important theoretical and key technical support for the improvement of productivity and quality of black soil.
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