中国科学院机构知识库网格系统: 检索

Himalaya to Hengduan: dynamics of alpine treelines under climate change 期刊论文 OAI收割
REGIONAL ENVIRONMENTAL CHANGE, 2023, 卷号: 23, 期号: 4, 页码: 157
作者: Tiwari,Achyut; Adhikari,Arjun; Fan,Ze-Xin; Li,Shu-Feng; Jump,Alistair S.

|

收藏 | 浏览/下载：14/0 | 提交时间：2024/05/09

Trans-Himalaya Hengduan Mountain Treeline Timberline Ecotone Range shift Limiting factor Regeneration TREE-RING ALTITUDINAL GRADIENT TIANSHAN MOUNTAINS ABIES-SPECTABILIS WESTERN HIMALAYA TIBETAN PLATEAU GROWTH TEMPERATURE PRECIPITATION VARIABILITY

The new chimeric chiron genes evolved essential roles in zebrafish embryonic development by regulating NAD(+) levels 期刊论文 OAI收割
SCIENCE CHINA-LIFE SCIENCES, 2021, 卷号: 64, 期号: 11, 页码: 1929-1948
作者: Fang,Chengchi; Gan,Xiaoni; Zhang,Chengjun; He,Shunping

|

收藏 | 浏览/下载：47/0 | 提交时间：2022/04/02

new chimeric genes essential function NAD plus rate-limiting enzyme coevolution COLONY-ENHANCING FACTOR DE-NOVO ORIGINATION PHYLOGENETIC ANALYSIS PROTEIN DIVERSITY RAPID EVOLUTION DUPLICATE GENES GENERATION TIME PATHWAY YOUNG NEOFUNCTIONALIZATION

烟台夹河口外柱状沉积物还原性无机硫、活性铁的变化特征及其相互关系 期刊论文 OAI收割
海洋科学, 2018, 卷号: 42, 期号: 8, 页码: 90-97
作者: 姜明; 赵国强; 李兆冉; 盛彦清

|

收藏 | 浏览/下载：25/0 | 提交时间：2020/07/08

还原性无机硫活性铁深层柱状沉积物硫化度矿化度 Reduced inorganic sulfur Reactive iron Deep core sediments Degree of pyritization Degree of sulfidity The distribution characteristics and coupling mechanism of reduced inorganic sulfur (RIS)and reactive iron in marine core sediments are closely related to the evolution of environment quality.In this study,an improved cold diffusion method and hydrochloric acid extraction method were applied to the acid-volatile sulfur (AVS),pyrite sulfur (CRS),elemental sulfur (ES),and reactive iron [Fe (Ⅱ)and Fe (III)] analyses.The distribution characteristics and coupling mechanism of S and Fe were investigated based on a core sediment 4 meters deep collected in the northern sea area of the mouth of Jiahe River,Yantai.The results showed that the RIS in sediments was dominated by CRS,followed by AVS and ES.The content of AVS presented a narrow range with depth,whereas the CRS and ES were higher at the top and bottom layers than the middle layer reactive iron was dominated by Fe (II),which increased with depth,while Fe (Ⅲ)gradually decreased with depth.Most of the Fe (III)was reduced to the disssolved Fe(II),which was combined with the soluble H_2S of the sulfate-reducing bacteria to produce CRS and ES in the deep layer,resulting in their accumulation at the bottom of core sediments.Furthermore,this study showed that reactive iron was not a limiting factor for the accumulation of RIS with lower degree of pyritization and degree of sulfidity.

Direct effects of litter decomposition on soil dissolved organic carbon and nitrogen in a tropical rainforest 期刊论文 OAI收割
SOIL BIOLOGY & BIOCHEMISTRY, 2015, 卷号: 81, 页码: 255-258
作者: Zhou, WJ; Zhang, YP; Sha, LQ; Song, QH

收藏 | 浏览/下载：26/0 | 提交时间：2015/04/28

Dissolved organic carbon Dissolved nitrogen Litter decomposition Limiting factor Tropical rainforest

Water Environment Characteristics at Taige Canal-Taihu Lake: a Comparative Study on Interaction between Chlorophyll a and Environmental Variables 期刊论文 OAI收割
POLISH JOURNAL OF ENVIRONMENTAL STUDIES, 2015, 卷号: 24, 期号: 3, 页码: 1031-1039
作者: Jing, Liandong; Ao, Hongyi; Huang, Xiaolong; Xiong, Xiong; Wu, Chenxi

收藏 | 浏览/下载：26/0 | 提交时间：2015/09/14

eutrophication chlorophyll a spatial variation limiting factor

Which climatic factors limit radial growth of Qilian juniper at the upper treeline on the northeastern Tibetan Plateau? SCI/SSCI论文 OAI收割
2015
作者: Zhang H.; Shao, X. M.; Zhang, Y.

收藏 | 浏览/下载：30/0 | 提交时间：2015/12/09

Qilian juniper climatic limiting factor upper treeline Tibetan Plateau tree-ring width temperature reconstruction precipitation variation ring chronologies qinghai province pinus-sylvestris qaidam basin dulan region china mountains standardization

The altitudinal distribution center of a widespread cushion species is related to an optimum combination of temperature and precipitation in the central Tibetan Plateau SCI/SSCI论文 OAI收割
2013
作者: Li R.

收藏 | 浏览/下载：21/0 | 提交时间：2014/12/24

Alpine meadow Climate Cushion plant Distribution pattern Limiting factor Plant cover Survival androsace-tapete primulaceae spatial genetic-structure net primary productivity central chile high andes ecosystem engineers alpine gradients plant elevation responses

Possible nutrient limiting factor in long term operation of closed aquatic ecosystem 期刊论文 OAI收割
ADVANCES IN SPACE RESEARCH, 2012, 卷号: 49, 期号: 5, 页码: 841-849
作者: Hao, Zongjie; Li, Yanhui; Cai, Wenkai; Wu, Peipei; Liu, Yongding

收藏 | 浏览/下载：32/0 | 提交时间：2012/09/25

Closed aquatic ecosystem Nutrient limiting factor Chlorella pyrenoidosa and Chlamydomonas reinhardtii Daphnia magna Soluble carbohydrate Total phosphorus

Spring phytoplankton blooms in Xiangxi Bay of Three-Gorges Reservoir: spatiotemporal dynamics across sharp nutrient gradients 期刊论文 OAI收割
JOURNAL OF FRESHWATER ECOLOGY, 2011, 卷号: 26, 期号: 1, 页码: 11-18
作者: Ye, Lin; Cai, Qinghua

收藏 | 浏览/下载：73/13 | 提交时间：2011/06/29

Eutrophication phytoplankton blooms limiting factor nutrient gradients

Impacts of agricultural land management on soil quality after 24 years: a case study in Zhangjiagang County, China 期刊论文 iSwitch采集
NEW ZEALAND JOURNAL OF AGRICULTURAL RESEARCH, 2011, 卷号: 54, 期号: 4, 页码: 261-273
作者: Qi, Y. B.; Huang, B.; Darilek, J. L.

收藏 | 浏览/下载：43/0 | 提交时间：2019/10/10

soil indicators variation anthropogenic influence soil quality evaluation limiting factor path analysis