搜索结果: 1-15 共查到“知识库 理学 productivity”相关记录68条 . 查询时间(0.046 秒)
SPATIO-TEMPORAL CHANGES OF NET PRIMARY PRODUCTIVITY AND ITS RESPONSE TO PHENOLOGY IN NORTHEAST CHINA DURING 2000–2015
Northeast China NDVI Net Primary Productivity Phenology Spatio-temporal Changes
2018/5/15
The relationship between net primary productivity (NPP) and phenological changes is of great significance to the study of regional ecosystem processes. In this study, firstly, NPP was estimated with t...
Effect of Floor Space Allowance on Pig Productivity across Stages of Growth: A Field-scale Analysis
Floor Space Allowance Pig Productivity Performance Field-scale Analysis
2016/5/20
A total of 152 pig farms were randomly selected from the five provinces in South Korea. During the experiment, the average temperature and relative humidity was 24.7°C and 74% in summer and 2.4°C and ...
Coastal Sediment Dynamics and River Discharge as Key Factors Influencing Coastal Ecosystem Productivity in Southeastern Lake Michigan
Coastal Sediment Dynamics River Discharge Coastal Ecosystem Productivity Southeastern Lake Michigan
2015/7/22
A central question addressed by the Episodic Events in the Great Lakes Experiment (EEGLE) was the extent to which the spring phytoplankton bloom in southern Lake Michigan is influenced by a recurrent ...
New Insights into the Controls and Mechanisms of Plankton Productivity in Coastal Upwelling Waters of the Northern California Current System
Controls and Mechanisms Plankton Productivity Coastal Upwelling Waters Northern California Current System
2015/7/22
During the lifetime of the National Science Foundation's Coastal Ocean Processes program, four experiments were conducted on the US West Coast in the northern California Current System. Although each ...
Soil water retention and gross primary productivity in the Zábrod area in the Sumava Mts
hydrologic cycle evapotranspiration gross primary productivity entropy production soil water retention
2015/2/3
The synergy between the hydrologic extremes, plant transpiration, gross primary productivity, and soil water retention was studied in the experimental area Zábrod – Meadow in the Šumava Mts. (Boh...
EASTERN EQUATORIAL PACIFIC PRODUCTIVITY VIA TWO GEOCHEMICAL PROXIES
geochemistry nutrient cycling phosphorus
2015/1/16
Drivers that influence oceanic productivity are not clearly constrained. However, sea level changes during glacial cycles have been proposed as a potential driver for productivity variations observed ...
Analysing Amazonian forest productivity using a new individual and trait-based model (TFS v.1)
Amazonian forest productivity new individual trait-based model
2014/12/19
Repeated long-term censuses have revealed large-scale spatial patterns in Amazon basin forest structure and dynamism, with some forests in the west of the basin having up to a twice as high rate of ab...
Understanding the Links Between Human Health and Climate Change: Agricultural Productivity and Allergenic Pollen Production of Timothy Grass(Phleum pratense L.) Under Future Predicted Levels of Carbon Dioxide and Ozone
Carbon Dioxide Climate Change Grass Pollen Human Health Ozone Phleum pratense
2014/11/4
The prevalence of allergic disease is expected to increase with climate change. Grasses, which have highly allergenic pollen, are widely distributed across the globe. Changes in production and allerge...
Widespread variability in overnight patterns of ecosystem respiration linked to gradients in dissolved organic matter, residence time, and productivity in a global set of lakes
The ecological system lakes
2014/10/16
Widespread variability in overnight patterns of ecosystem respiration linked to gradients in dissolved organic matter, residence time, and productivity in a global set of lakes。
Genetic Relationships of Carcass Traits with Retail Cut Productivity of Hanwoo Cattle
Correlated Response Indirect Selection Genetic Parameters Mixed Model
2016/5/17
This study aimed to estimate genetic correlation between carcass grading and retail productivity traits and to estimate the correlated response on retail productivity traits through selection for carc...
Solid phase phosphorus species and preservation of fish remains in marine sediments of areas of high primary productivity and oxygen seasonality (36°S, central South Chile)
fish debris biogenic apatite seasonal coastal upwelling hypoxia central-south Chile
2017/4/10
The main input of phosphorus to the ocean is associated with river runoff, while this element leaves the marine system
via burial in the sediments. Solid phase P accumulation is a function of bottom ...
The roles of productivity and ecosystem size in determining food chain length in tropical terrestrial ecosystems
ecosystem size food chain length food web structure islands
2015/11/13
Many different drivers, including productivity, ecosystem size, and disturbance,
have been considered to explain natural variation in the length of food chains. Much remains
unknown about the role o...
Comparing Process-Based Net Primary Productivity Models in a Mediterranean Watershed
NPP Modelling Remote Sensing Percent Tree Cover Model Comparison CASA LPJ-GUESS
2014/4/22
The aim of this study was to compare the estimation capability of two different process-based NPP models (CASA and LPJGUESS) in a Mediterranean watershed. Remotely sensed data and climate time series ...
Agromorphological characterization, cyanogenesis and productivity of accessions of white clover (Trifolium repens L.) collected in Northern Spain
genetic resources multivariate analysis spaced plants sward plots
2014/2/24
White clover (Trifolium repens L.) is an essential element of sustainable livestock systems in temperate climates because of its adaptability to a range of management and soil fertility conditions. Th...
Frequency of Cyclonic Disturbances and Changing Productivity Patterns in the North Indian Ocean Region: A Study Using Sea Surface Temperature and Ocean Colour Data
Cyclonic Events Arabian Sea Bay of Bengal SST Chlorophyll-a Ecological Structure
2013/3/8
In recent years we are observing devastating cyclones like Nargis, Gonu, Sidr, Liala, Phet etc in the North Indian Ocean associated with heavy rains, thunderstorm, high tide and intense winds that cau...