搜索结果: 1-15 共查到“水文学及水资源 CHINA”相关记录21条 . 查询时间(0.335 秒)
Seasonal and interannual variations in carbon dioxide exchange over a cropland in the North China Plain
carbon sequestration, ecosystem respiration eddy covariance gross primary production net ecosystem exchange summer maize winter wheat
2013/7/25
In China, croplands account for a relatively large form of vegetation cover. Quantifying carbondioxide exchange and understanding the environmental controls on carbon fluxes overcroplands are cr...
Assessing the impacts of climate variability and human activities on annual runoff in the Luan River basin, China
climate variability human activity hydrological model Luan River basin runoff decrease
2013/7/25
Regional hydrological processes have been greatly influenced by human activities and climatevariability. The inflow of Panjiakou Reservoir, which is the largest reservoir located on the Lu...
Effects of Aquatic Vegetation on Fish Assemblages in a Freshwater River of Taihu Lake Basin, East China
Macrophyte Fish Assemblages Emerged Plant Floating-Leaved Plant pH Transparency
2013/3/18
Distribution characteristics of fish assemblages and environmental variation in emerged plant, floating-leaved plant and blank habitats were studied. Emergent plant habitat supported the greatest fish...
Combining crop coefficient of winter wheat and summer maize with remotely-sensed vegetationindex for estimating evapotranspiration in the North China Plain
evapotranspiration dual crop coefficient eddy covariance FAO-56 approach remote
2013/7/25
Estimates of actual evapotranspiration (ETc) in the wheat and maize fields are essential in effective planning of irrigation water use in the North China Plain. The FAO-56 crop coefficient approach is...
Estimation of Water Environmental Capacity Considering Hydraulic Project Operation in the Xiangyang Reach of the Han River, Central China
Han River Water Environmental Capacity Cascade Development Pollutant Loading
2013/3/19
Using the Xiangyang Reach of the Han River as an example, this paper evaluates the changes of water environmental capacity after the implementation of Cuijiaying Hydro-junction project. The allowable ...
Seasonal variations in soil respiration, heterotrophic respiration and autotrophic respiration of a wheat and maize rotation cropland in the North China Plain
Heterotrophic respiration Maize North China Plain Soil respiration Wheat
2013/7/25
Determining soil respiration from croplands is necessary for evaluating the global terrestrial carbon budget and how it is altered in future climates. This study explored seasonal characteristics and ...
By Sector Water Consumption and Related Economy Analysis Integrated Model and Its Application in Hai River Basin, China
Direct Water Consumption Total Water Consumption Intersectoral Water Transaction Input-Output Analysis
2013/3/19
This paper established a by sector water consumption and economy analysis integrated model with input–output analysis method. The model can be used to identify the relationships between economic activ...
Simulation of evapotranspiration and carbon dioxide flux in the wheat-maize rotation croplands of the North China Plain using the Simple Biosphere Model
latent heat fl ux net ecosystem exchange land surface mode eddy covariance technique
2013/7/25
The North China Plain, which is critical for food production in China, is encountering serious water shortage due to heavyagricultural water requirement. The accurate modelling of carbon dioxide ʂ...
Climatic factors influencing changing pan evaporation across China from 1961 to 2001
Pan evaporation PenPan model Climate change Radiation Wind speed
2013/7/25
Pan evaporation (Epan) is an indicator of atmospheric evaporative demand, and downward trends havebeen reported in many regions over the past several decades. It is important to understand why Epanhas...
Pb Distribution and Sources in Jiaozhou Bay, East China
Heavy Metal Pb Distribution Seasonal Change Pollution Source Jiaozhou Bay
2013/3/19
We studied the distribution, seasonal change, translocation, and source of heavy metal Pb based on the surface and bottom water sampling in Jiaozhou Bay in 1980 in order to know the condition of Pb be...
Development of a Regional Regression Model for Estimating Annual Runoff in the Hailar River Basin of China
Inner Mongolia Indirect Estimation Monsoon Climate Subbasin Runoff
2013/3/21
The Hailar River, a first-grade tributary of the Erguna River that borders China and Russia, is the main water source for the local industry and agriculture. However, because there are only 11 flow ga...
Estimation of evapotranspiration using a remote sensing model over agricultural land in the North China Plain
evapotranspiration sensing model over
2013/7/25
Evapotranspiration (ET) from agricultural land is the most common form of waterconsumption in the North China Plain. Based on in situ measurements by an eddycovariance (EC) system, the present study t...
Relationship between Reduction of Summer Precipitation in North China and Atmospheric Circulation Anomalies
North China Summer Precipitation Reduction Atmospheric Circulation Anomalies
2013/3/20
Based on Reanalysis datasets from National Centers for Environmental Prediction/National Center for Atmospheric Research (NCEP/NCAR) and summer rainfall datasets from China National Climate Center (NC...
Irrigation impact on annual water balance of the oases in Tarim Basin, Northwest China
irrigation actual evapotranspiration Budyko hypothesis
2013/7/25
By taking the sum of annual precipitation and lateral water input (in which irrigation water withdrawal is the main component)for water availability, the Budyko hypothesis and Fu’s formula derived fro...
Estimation of Evapotranspiration from Faber Fir Forest Ecosystem in the Eastern Tibetan Plateau of China Using SHAW Model
Evapotranspiration Faber Fir Forest Tibetan Plateau SHAW
2013/3/20
Understanding the hydrological processes of forest ecosystems in Tibetan Plateau is crucial for protecting water resources and the environment, especially considering that evapotranspiration is the mo...