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Plant Sciences 72 Ecology 67 Environmental Sciences & Ecology 36
Forestry 31 Evolutionary Biology 29 Multidisciplinary Sciences 28
Biochemistry & Molecular Biology 21 Environmental Sciences 14 Genetics & Heredity 14
Biodiversity Conservation 13 Mycology 12 Agriculture 9
Biology 9 Science & Technology - Other Topics 9 Geography, Physical 8
Biodiversity & Conservation 7 Environment/ecology 6 Geology 6
Soil Science 6 Entomology 5 Physical Geography 5
genetics & heredity 5 生态学 5 Microbiology 4
Paleontology 4 Remote Sensing 4 Chemistry, Multidisciplinary 3
Geosciences, Multidisciplinary 3 Marine & Freshwater Biology 3 Water Resources 3
Zoology 3 agronomy 3 biotechnology & applied microbiology 3
plant sciences 3 生物科学 3 Agriculture/agronomy 2
Agronomy 2 Biochemistry & Molecular Biology; Evolutionary Biology; Genetics & Heredity 2 Biotechnology & Applied Microbiology 2
Environment 2 Imaging Science & Photographic Technology 2 Meteorology & Atmospheric Sciences 2
horticulture 2 主要研究方向::海洋生物学 2 地球科学::海洋科学::海洋生物学 2
植物学 2 环境科学 2 生物学::分子生物学 2
生物科学::遗传学 2 Agronomy; Plant Sciences 1 Animal Sciences 1
Applied Microbiology 1 Biochemistry & Molecular Biology; Environmental Sciences & Ecology; Evolutionary Biology 1 Biodiversity Conservation; Ecology; Environmental Sciences 1
Biotechnology 1 Computer Science, Information Systems 1 Engineering, Electrical & Electronic; Telecommunications; Transportation Science & Technology 1
Environmental Sciences & Ecology; Engineering 1 Evolutionary Biology; Genetics & Heredity 1 Fisheries 1
Forestry (Provided By Clarivate Analytics) 1 Forestry; Genetics & Heredity; Horticulture 1 Infectious Diseases; Parasitology; Tropical Medicine 1
Life Sciences & Biomedicine - Other Topics 1 Limnology 1 Multidisciplinary 1
Oceanography 1 Parasitology 1 Plant Sciences; Ecology; Forestry 1
Plant Sciences; Marine & Freshwater Biology 1 Psychology research method,Medical psychology 1 Remote Sensing; Imaging Science & Photographic Technology 1
S714.3 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 agriculture, multidisciplinary 1
biology 1 ecology 1 microbiology 1
主要研究方向 1 园艺 1 地球科学::海洋科学::海洋调查与监测 1
地理学::自然地理学 1 微生物分类学 1 植物保护学 1
水产学::水产学基础学科::水产生物学 1 环境学 1 环境科学::环境化学 1
生态研究 1 生物学 1 生物学::微生物学 1
生物学::生态学 1 生物学::生态学::恢复生态,农学 1 生物学::生态学::种群生态学 1
生物学::生物进化论 1 生物学::遗传学::分子遗传学 1 生物学::遗传学::生态遗传学 1
生物学::遗传学::群体遗传学 1 生物学::遗传学::进化遗传学 1 生物科学::植物学 1
生物科学::生物化学 1

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