搜索结果: 1-15 共查到“农业基础学科 Impact”相关记录46条 . 查询时间(0.14 秒)
Impact of water temperature and structural parameters on the hydraulic labyrinth-channel emitter performance
manufacturer’s coefficient of variation emission uniformity
2014/10/28
The effects of water temperature and structural parameters of a labyrinth emitter on drip irrigation hydraulic performance were investigated. The inside structural parameters of the trapezoidal labyri...
Evaluation of phosphorus and nitrogen balances as an indicator for the impact of agriculture on environment: A comparison of a case study from Poland and Mississippi US
Nitrogen Phosphorus Nutrient Efficiency Nutrient Availability Nutrient Budget
2013/2/28
The objective of this research was to quantify the changes of nitrogen (N) and phosphorus (P) balances in Poland and Mississippi (MS), USA. Nutrient balances were calculated as difference between inpu...
Impact of climate variability on tomato production in Limpopo Province, South Africa
Climate variability climate change temperature tomato production, Limpopo South Africa
2011/1/13
The relationship between tomato production, monthly average temperature and seasonal average temperature in Limpopo province, South Africa during the period of 1971 - 2006 were investigated using stat...
The impact of trade liberalisation on South African agricultural productivity
Total factor producitvity (TFP) ordinary least square (OLS)
2011/1/11
This study attempts to examine the empirical relationship between trade and total factor producitvity (TFP) in the agricultural sector using both cross -sectional (across nine agricultural commodities...
CORAL REEF ANTHROPOGENIC IMPACT BIO-INDICATORS IN THE NORTHERN PART OF THE PERSIAN GULF
Reef Check IndicatorSpecies Overfishing Arabian butterfly fish Short-spine sea urchin
2010/3/26
Potential and efficiency of coral reef bio-indicators proposed by Reef Check for coral reef
monitoring in the Persian Gulf were studied as anthropogenic impact bio-indicators. Data were collected fro...
Impact of Climate Warming in the Past 20 Years on Agriculture in Different Regions of China
climate change agricultural input grain production
2009/8/28
Based on the China Rural Statistical Yearbook of 1984-2003 published by State Statistics Bureau, and the annual temperature in the same period, impacts of temperature change, agricultural input, and p...
An Energy Absorption Comparison of Square, Circular and Elliptic Steel and Aluminum Tubes under Impact Loading
Impact Energy absorption Finite element method Axial crushing
2010/3/17
An Energy Absorption Comparison of Square, Circular and Elliptic Steel and Aluminum Tubes under Impact Loading.
Impact of Land Surface Data on Simulated Monsoonregional Climate During Contrasting Episodes of the Indian Summer Monsoon
Indian Summer Monsoon Land Surface Data MM5 Vegetation Fraction Soil Moisture NCEP Reanalysis
2016/4/8
The Fifth-Generation National Center for Atmospheric Research / Penn State Mesoscale Model (MM5) is deployed to investigate the importance of realistic representation of land surface in a regional mod...
Impact of Climate Change on Jharkhand Agriculture: Mitigation and Adoption
Climate Change Undulating Terrain Fragmented holding Soil Erosion Poor Fertility
2016/4/8
A considerable increase in average monthly maximum temperature and consistent increase in rainfall pattern with high variability, in recent decades, has further enhanced the agricultural problems in J...
Impact of Climate Change on Agriculture
Climate Change Agriculture Food Supply Vulnerability Impact Adaptation Mitigation
2016/4/7
This paper attempts to take an overview of the impacts of climate change on world agriculture. It focuses on the Indian scenario, i.e. on climate change impacts on Indian agriculture. It explores how ...
Impact of Climate Change on Runoff of the Major River Basins of India Using Global Circulation Model (HADCM3) Projected Data
Runoff Curve Number GCM River Basin Rainfall
2016/4/7
The effects of climate change on hydrological regimes have become a priority area for water and catchment management strategies. The terrestrial hydrology driven by monsoon rainfall plays a crucial ro...
Impact of Increased CO2 on Rainfall Over Indian Monsoon Region in IPCC-AR4 CGCM Simulations
Climate Change Indian Monsoon IPCC CGCMs
2016/4/7
An attempt is made to study the spatial and temporal changes in meteorological parameters that are likely to take place over the Indian monsoon region when CO2 doubles from the present level. We use t...
Long Range Regional Climate Fluctuations/Changes and Their Impact on Agriculture — A Case Study for Chhattisgarh State in Central india
Climate Change Agriculture Rainfed Rice Rainfall Iimpact Chhattisgarh Central India
2016/4/7
Climate change is now felt as a reality world wide and intensive research work is being carried out on the scale of the change and its impact on different sectors. However, the global changes are the ...
Impact of Climate Change on Shift of Apple Belt in Himachal Pradesh
Apple Chill Unit Requirement Snowfall Farmers Perceptions Climate Change
2016/4/7
The study examines the impact of climate change in recent years on apple shift to higher altitude in Himachal Pradesh based on climate information and farmers perceptions. It is evident that temperatu...
Impact Analysis of Climate Change on Different Crops in Gujarat, India
Climate Change Impact Analysis Temperature CO2 DSSAT-3.5 Wheat Maize
2016/4/7
The vulnerability to climate change is greater in developing countries like India- which are mostly located in lower, warmer latitudes. Climatic data of different stations of Gujarat have been analyze...