Shuitu Baochi Xuebao[目的] 重庆市作为我国长江上游地区经济中心及保障长江中下游生态安全的屏障,是我国典型的生态功能区和生态脆弱区,研究其土地利用的变化特征及生态敏感性对研究区土地利用重构及生态环境保护具有重要意义。[方法] 利用2000年、2010年、2020年3期遥感数据,基于ArcGIS、Fragstats等软件,应用耦合空间距离指数模型、空间自相关分析、地理探测器模型、格网编码等方法综合评价重庆市生态敏感性。[结果] (1)研究区景观基质主要以耕地为主,占全区面积45%以上,2000—2020年,耕地 ...
谢贤健, 苟千陶, 吴汉
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Research progress in estrogen as an adjunctive therapy for schizophrenia. [PDF]
Zhong Nan Da Xue Xue Bao Yi Xue BanGe Y +5 more
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[Determination of perfluorinated compounds in environmental water samples by magnetic solid-phase extraction-liquid chromatography-mass spectrometry and associated risk assessment]. [PDF]
Se PuGu CS +7 more
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An analysis of errors in Chinese-Spanish sight translation by Chinese university students-a corpus study. [PDF]
Front PsycholLiu S.
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[Determination of glufosinate, glyphosate and their metabolites in sediment by ultra-high performance liquid chromatography-tandem mass spectrometry with pass-through solid-phase extraction]. [PDF]
Se PuYang X +5 more
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[Mechanism relevant to hepatocellular carcinoma occurrence after negative conversion of viral DNA in treatment of chronic hepatitis B patients with nucleos(t)ide drugs]. [PDF]
Zhonghua Gan Zang Bing Za Zhi, 2019 Gao TJ, Han GY, Lu FM.
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[Development of an ideological and political education design based on course characteristics: taking high performance liquid chromatography as an example]. [PDF]
Se PuYang HL, Tang GF, Lei J.
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[A Study on the hearing level of high-risk children of diabetic mothers]. [PDF]
Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za ZhiZhang J +5 more
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Shuitu Baochi Xuebao目的耕地撂荒造成的持续耕地损失和粮食减产问题不容忽视，明确耕地撂荒的空间分布及驱动机制是科学制定耕地保护政策的重要依据。方法结合土地利用轨迹分析、空间相关性分析和地理加权回归模型（GWR），揭示中国近30 a耕地撂荒的时空动态特征，明确撂荒的热点区域，解析撂荒的驱动因素。结果1）1992—2020年，累计562 826 km2的耕地面积经历过撂荒，年平均撂荒面积和撂荒率分别为19 408 km2和1.10%。耕地年撂荒面积和撂荒率总体呈波动上升趋势，2005—2008年上升趋势最为明显，增幅达69 ...
梁琼丹, 方怒放
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[Analysis of the Occurrence and Influencing Factors of Oral Frailty in Elderly Residents of Elderly Care Facilities]. [PDF]
Sichuan Da Xue Xue Bao Yi Xue BanWei J, Zhao Q, Huang W, Liu X, Zhang X.
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