Subjects: Geosciences >> Cartography submitted time 2023-07-19 Cooperative journals: 《干旱区地理》
Abstract：农牧交错区的土地利用转型及生态环境建设，是我国西北地区可持续发展的重要支撑。基于三生空间视角，运用包头市2000、2010、2020年3期遥感数据，通过土地转移矩阵、生态环境质量指数和生态贡献率等方法，分析其土地利用转型特征与生态环境效应。结果表明：（1）研究期内包头市三生空间总体格局稳定，生产、生态用地减少，生活用地持续增加。牧草生态用地转出面积最多，农业生产用地次之；城镇生活用地与工矿生产用地流入面积最大。（2）20002020年包头市生态环境质量指数下降，分别为0.6292、0.6208、0.6194，但改善趋势大于恶化趋势；城市北部生态高质量区面积有所减少；中部中质量区缓慢减少，南部低质量区持续向东南方向递增。（3）牧草生态用地被占用产生的生态环境负效应较大，而其他生态用地、农业生产用地向牧草生态用地转化则为生态环境改良的主导因素。通过研究包头市的土地利用转型及其生态环境效应，以期为农牧交错区城市的三生空间优化、生态环境保护提供借鉴。
Subjects: Psychology >> Developmental Psychology submitted time 2023-03-28 Cooperative journals: 《心理科学进展》
Abstract： Political orientation refers to people’s ideological self-positioning and can be divided into liberalism and conservatism. Individuals with different political orientations exhibit significant differences in cognitive and behavioral characteristics. Although individuals’ political orientation is relatively stable, it may change under threat. Motivated social cognition theory postulates that threat makes people more conservative. Terror management theory proposes that threat makes people more firmly believe in their original cultural worldviews, and thus makes their political orientation more pronounced. This suggests that threat will cause liberals to be more liberal and conservatives to be more conservative. Based on deep analysis and discussion of relevant theories and empirical studies, we point out that failing to distinguish between external threat and internal threat may explain why these two theories are contradictory. We propose that internal threat can reinforce individuals’ original political orientation, while external threat makes people more conservative. Future research should endeavor to explore the mechanism underlying how external and internal threat affect political orientation, this phenomenon in Chinese context, and how to promote harmonious relationship between people with different political orientations.
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