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编辑出版 24 Plant Sciences 12 材料科学与物理化学 12
图书馆、情报与文献学 9 天文学 9 Computer Science 6
Geosciences, Multidisciplinary 6 Materials Science, Multidisciplinary 6 新闻学与传播学 6
生态学 6 Environmental Sciences 5 Science & Technology - Other Topics 5
应用心理学 5 环境材料与生态化学 5 Engineering 4
Metallurgy & Metallurgical Engineering 4 人文地理学 4 空间环境 4
Chemistry 3 Environmental Sciences & Ecology 3 Genetics & Heredity 3
Materials Science, Coatings & Films 3 Physics, Applied 3 Water Resources 3
信息技术 3 信息技术::图书馆自动化系统 3 图书情报理论研究与信息社会学 3
图书情报理论研究与信息社会学::数字图书馆研究 3 工业与组织心理学 3 环境学 3
计算机应用 3 Agriculture, Multidisciplinary 2 Astronomy & Astrophysics 2
Biochemistry & Molecular Biology 2 Chemistry, Physical 2 Computer Science (provided by Thomson Reuters) 2
Ecology 2 Engineering, Civil 2 Engineering, Mechanical 2
Evolutionary Biology 2 Geology 2 Materials Science 2
Multidisciplinary Sciences 2 Optics 2 Physical Geography 2
Physics 2 信息技术::数据库管理系统 2 信息组织与服务 2
光电子学 2 力学 2 地球科学::海洋科学::海洋科学其他学科 2
微波遥感 2 灾害学 2 物理化学与绿色催化 2
空间技术 2 计算机科学技术基础学科::数据安全与计算机安全 2 计算机系统结构::分布式处理系统 2
计算机软件::软件理论 2 Automation & Control Systems 1 Biology 1
Cell Biology 1 Computer Science, Hardware & Architecture; Computer Science, Software Engineering 1 Computer Science, Theory & Methods; Telecommunications 1
Electrical & Electronic 1 Engineering, Electrical & Electronic 1 Environment/ecology 1
Environmental Studies 1 F062.2 1 F592 1
Horticulture 1 Imaging Science & Photographic Technology 1 Information Systems 1
Information Systems; Computer Science 1 Materials Science, Characterization & Testing 1 Neurosciences & Neurology 1
P642.23 1 Physical Geography; Remote Sensing 1 Physics, Applied; Physics, Condensed Matter 1
Physics, Condensed Matter 1 Physiology 1 Remote Sensing 1
Software Engineering 1 Soil Science 1 TV414 1
This paper presents a study on species diversity and its ecological service function in the plateau area in western Sichuan. The results show that species diversity in the plantations on the cutover land has a tendency to increase and that its ecological service function is to be improved with stand age growing. The species diversity in forest communities is also gradually increased on different succession stage till reaching a climax level. But the species diversity in the climax community is slightly decreased before it reaches a relatively constant status. Ecological service function of diversity is gradually strengthened with the progress of succession. In addition, species diversity in a stand in a similar site and at a same age differs among forest types. Species diversity index within a coniferous and broad-leaved mixed forest is larger than that within a coniferous forest. Meanwhile, species diversity enriches as the tree density increases 1 astronomy & astrophysics 1 geosciences, multidisciplinary 1
meteorology & atmospheric sciences 1 production planning and control; manufacturing; industrial engineering and management;heat transfer;water pollution sources;atmospheric properties 1 信息技术::搜索引擎 1
信息科学与系统科学 1 信息组织与服务::信息内容分析 1 信息组织与服务::编目与书目组织 1
健康心理学 1 农业工程 1 半导体材料 1
半导体物理 1 固体力学::制造工艺力学 1 固体力学::岩体力学和土力学 1
图书情报理论研究与信息社会学::图书馆与情报实践 1

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