筛选
科学数据
统计数据
共检索到270条 ,权限内显示50条;
Data from: Multiple components of environmental change drive populations of breeding waders in seminatural grasslands
- 负责人：
- DOI：
- doi:10.5061/dryad.271f74f
- 摘要：
- -term and long-term time series at Tipperne. This implies that environmental factors had consistent effects across large temporal and spatial scales.
Data from: Effects of increased N and P availability on biomass allocation and root carbohydrate reserves differ between N?fixing and non?N?fixing
- 负责人：
- DOI：
- doi:10.5061/dryad.09h8p8d
- 摘要：
- h functional groups, root carbohydrate content only reduced with fertilization in non?N?fixers. Our results indicate that, even within a given system, plants belon
Data from: Capture from the wild has long-term costs on reproductive success in Asian elephants
- 负责人：
- DOI：
- doi:10.5061/dryad.q0m0d84
- 摘要：
- is often difficult because wild and captive populations live in very different environments and there is a need for long-term life-history data. Here we sh
nitrogen fertilization treatments) at Jornada Basin LTER, 1982-2014
- 负责人：
- 关键词：
- DOI：
- doi:10.6073/pasta/08a04ff1aa1c822205dee396a0c28981
- 摘要：
- d annually with ammonium nitrate fertilizer (NH4NO3 at 10g N/m2/yr) until 1987. Along each transect, 91 stations, each with a plant intercept line, are spaced
Data from: Associative nitrogen fixation (ANF) in switchgrass (Panicum virgatum) across a nitrogen input gradient
- 负责人：
- DOI：
- doi:10.5061/dryad.60bn81v
- 摘要：
- vity is often unresponsive to N fertilizer addition, via separate short-term 15N2 incubations of rhizosphere soils and excised roots four times duri
Data from: Outcome of assisted reproductive technology (ART) and subsequent self-reported life satisfaction
- 负责人：
- DOI：
- doi:10.5061/dryad.1sj6k
- 摘要：
- d with subsequent lower level of life satisfaction, it does not seem to threaten the long-term wellbeing.
Data from: Soil trace gas fluxes along orthogonal precipitation and soil fertility gradients in tropical lowland forests of Panama
- 负责人：
- DOI：
- doi:10.5061/dryad.8812m
- 摘要：
- scenarios, it is necessary to be able to predict changes in soil trace gas fluxes along natural gradients of soil fertility and climatic characteristics. We quanti
Replication Data for: Soil Biological Indices in Short and Long-Term Experiments in Kenya
- 负责人：
- CIAT Data And Research Methods;;International Center For Tropical Agriculture
- 关键词：
- DOI：
- doi:10.7910/dvn/4gvgap
- 摘要：
- inputs (i.e., maize stubble, manure, inorganic fertilizers and lime) on the abundance, biomass, taxonomic diversity and extracellular ph
Data from: Local parasite pressures and host genotype modulate epigenetic diversity in a mixed-mating fish
- 负责人：
- DOI：
- doi:10.5061/dryad.0065k4k
- 摘要：
- Parasite-mediated selection is one of the main drivers of genetic variation in natural populations. The persistence of long-term self-fertilization
World Tables of Economic and Social Indicators, 1950-1992;;Archival Version
- 负责人：
- 关键词：
- DOI：
- doi:10.3886/icpsr06159
- 摘要：
- h as the percentage of urban population, life expectancy at birth, infant mortality rate, total fertility rate, school enrollment rates, and the percentage of fe
