中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
机构
采集方式
内容类型
发表日期
学科主题
筛选

分面浏览：学科主题

当前检索式 ((ALL：COMMUNITY LAND))
限定条件 无
共91条，第1-91条
Environmental Sciences 39 Ecology 38 Environmental Sciences & Ecology 24
Plant Sciences 16 Soil Science 14 Biodiversity Conservation 12
Agriculture 10 Multidisciplinary Sciences 10 Geography, Physical 8
Meteorology & Atmospheric Sciences 7 地理学::自然地理学 7 Agronomy 6
Forestry 6 Science & Technology - Other Topics 6 Geosciences, Multidisciplinary 5
Microbiology 5 Engineering 4 Environment 4
Evolutionary Biology 4 Water Resources 4 生态学 4
Engineering, Environmental 3 Genetics & Heredity 3 植物学 3
水土保持学 3 自然地理学 3 Biochemistry & Molecular Biology 2
Biodiversity & Conservation 2 Public, Environmental & Occupational Health 2 Zoology 2
人文地理学 2 农学::土壤学 2 环境学 2
环境科学 2 生物学::植物学::植物生态学 2 生物学::植物学::植物生理学 2
生物学::生态学::系统生态学 2 生物科学 2 生物科学::普通生物学 2
Agriculture, Multidisciplinary 1 Biodiversity Conservation; Ecology; Environmental Sciences 1 Biodiversity Conservation; Environmental Sciences; Marine & Freshwater Biology; Water Resources 1
Biotechnology & Applied Microbiology 1 Civil 1 Ecology; Environmental Sciences 1
Engineering, Environmental; Engineering, Civil; Environmental Sciences 1 Environmental Sciences & Ecology; Agriculture 1 Environmental Sciences & Ecology; Geology 1
Environmental Sciences; Geography, Physical 1 Environmental Sciences; Soil Science 1 Environmental Sciences; Water Resources 1
Geography 1 Geology 1 Geosciences 1
Geosciences, Multidisciplinary; Soil Science; Water Resources 1 K928 1 Life Sciences & Biomedicine - Other Topics 1
Limnology; Marine & Freshwater Biology 1 Marine & Freshwater Biology 1 Multidisciplinary 1
Mycology 1 Oceanography 1 Parasitology 1
Parasitology; Zoology 1 Physical Geography 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
Toxicology 1 X171.4 1 农学 1
分析化学与药物化学 1 医学心理学 1 地球科学::地球科学其他学科 1
地球科学::地理学 1 地球科学::地质 1 地球科学::海洋科学::海洋生物学 1
地球系统科学与全球变化科学 1 地理学::地图学与地理信息系统 ::在地球科学上的应用 1 大气科学 1
旅游经济学 1 水文地理学 1 环境 1
环境材料与生态化学 1 环境生物学 1 环境科学::环境学 1
环境经济与环境管理::环境管理学 1 生物学 1 生物学::微生物学 1
生物学::植物学::植物生态学,地理学::自然地理学 1 生物学::生态学 1 生物学::生态学::景观生态学,地理学::自然地理学 1
系统生态学::系统生态学 1