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elevational distribution of forests and its spatiotemporal dynamics in subtropical China from 2000 to 2019

Science China Earth Sciences 2024年第8期67卷 2563-2582页

作者： Zhencan ZHENG Liuwen ZHUANG Guofang MIAO Han LIU Zhiqiang CHENG Wenyu LI Rong SHANG Peng GONG Jing Ming CHEN Institute of Geography Fujian Normal University Key Laboratory of Humid Subtropical Eco-Geographical Process (Ministry of Education) Fujian Normal University School of Geographical Sciences Fujian Normal University National Land Consolidation Center Ministry of Natural Resources Key Laboratory of Land Consolidation and Rehabilitation Ministry of Natural Resources Key Laboratory of Digital Mapping and Land Information Application Ministry of Natural Resources Department of Geography & Planning University of Toronto Department of Geography The University of Hong Kong

The subtropical region of China possesses abundant forest resources and features a mountainous *** the implementation of policies such as natural forest protection,the Grain for Green Project,and other initiatives since the beginning of the 21st century,coupled with climate change,the forest resources in this region have undergone significant changes compared to historical *** addition,forest resources distributing mainly in mountainous areas also implies that these changes may vary significantly with *** explore the spatiotemporal dynamics of forest distribution in subtropical China since 2000,especially the trend of changes with elevation,we analyzed the data from two land cover products focusing on forest cover and forest *** used a hierarchical approach,in which coarse-classification forest cover data with relatively small uncertainties impose constraints on forest type data with larger uncertainties,to achieve a reasonable balance between obtaining more details and reducing data *** first divided the forest cover data into‘unchanged'and‘changed'*** the constraints by the forest cover results,we further analyzed the‘unchanged'and‘changed'forest *** results indicated that,since the implementation of ecological engineering and management policies,54%of the area in the subtropical region had maintained unchanged forest cover attributes over the past 20 years,which implied the good state of ecological *** results also showed that dynamic conversions existed in the long term between forests and lands for essential production needs like *** elevational variations of forest cover suggested that the dominant changes came from the conversion between forests and croplands in low-elevation regions below 700 m,the conversion between forests and shrublands in mid-elevation regions of 700–1500 m,and the conversion between forests and grasslands in high-elevation regions above 2000 *** the regio

关键词： Subtropical China Land cover Forest cover Forest type elevational distribution

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Human activities and elevational constraints restrict ranging patterns of snub-nosed monkeys in a mountainous refuge

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Integrative Zoology 2021年第2期16卷 202-213页

作者： Pengzhen HUANG Kun BIAN Zhipang HUANG Qi Li Derek WDUNN Gu FANG Jiahui LIU Mengyao WANG Xianfeng YANG Ruliang PAN Cunlao GAO Kaichuang SI Baoguo LI Xiaoguang QI Shaanxi Key Laboratory for Animal Conservation College of Life SciencesNorthwest UniversityXi’anChina Shaanxi Institute of Zoology Xi’anChina Zhouzhi National Nature Reserve Xi’anChina Center for Excellence in Animal Evolution and Genetics Chinese Academy of SciencesKunmingChina

Both natural conditions and anthropogenic factors affect the survivability,distribution,and population density of *** understand the extent and how these factors drive species distributions,a detailed description of animal movement patterns in natural habitats is *** this study,we used satellite telemetry to monitor elevational ranges favored by endangered golden snub-nosed monkeys(Rhinopithecus roxellana),in the Qinling Mountains,central *** investigated the abundance and distribution of food resources through sampling vegetation quadrats at different elevations and sampled anthropogenic activities using field *** results indicated that although there was no significant variation in food resources between low-(elevational use of *** in the Qinling *** study highlights the critical roles these factors can play in shaping the vertical distribution of high-altitude *** research provides useful insights for habitat-based conservation plans in which human disturbance management and habitat restoration should be prioritized.

关键词： elevational distribution food resources human activity Rhinopithecus roxellana satellite telemetry

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Strong partitioning of soil bacterial community composition and co-occurrence networks along a small-scale elevational gradient on Zijin Mountain

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Soil Ecology Letters 2021年第4期3卷 290-302页

作者： Xu Liu Teng Yang Yu Shi Yichen Zhu Mulin He Yunke Zhao Jonathan MAdams Haiyan Chu State Key Laboratory of Soil and Sustainable Agriculture Institute of Soil ScienceChinese Academy of SciencesNanjing 210008China University of Chinese Academy of Sciences Beijing 100049China State Key Laboratory of Crop Stress Adaptation and Improvement School of Life SciencesHenan UniversityKaifeng 475004China High School Affiliated to Nanjing Normal University Nanjing 210003China School of Geographic and Oceanographic Sciences Nanjing UniversityNanjing 210006China

The elevational distributions of bacterial communities in natural mountain forests,especially along large elevational gradients,have been studied for many ***,the distributional patterns that underlie variations in soil bacterial communities along small-scale elevational gradients in urban ecosystems are not yet well *** Illumina MiSeq DNA sequencing,we surveyed soil bacterial communities at three elevations on Zijin Mountain in Nanjing City:the hilltop(300 m a.s.l.),the hillside(150 m a.s.l.),and the foot of the hill(0 m a.s.l.).The results showed that edaphic properties differed significantly with *** community composition,rather than alpha diversity,strongly differed among the three elevations(Adonis:R2=0.12,Pelevational partitioning in the distributions of soil bacterial communities along the gradient on Zijin *** pH and elevation together drove the smallscale elevational distribution of soil bacterial *** study broadens our understanding of distribution patterns and biotic co-occurrence associations of soil bacterial communities from large elevational gradients to short elevational gradients.

关键词： elevational distribution Soil pH Bacterial community composition Co-occurrence network

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