搜索结果: 16-30 共查到“水文学 vegetation”相关记录36条 . 查询时间(0.073 秒)
Examination of evaporative fraction diurnal behaviour using a soil-vegetation model coupled with a mixed-layer model
evaporative fraction soil-vegetation model mixed-layer model
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2009/5/26
In many experimental conditions, the evaporative fraction, defined as the ratio between evaporation and available energy, has been found stable during daylight hours. This constancy is investigated ov...
Stratified analysis of satellite imagery of SW Europe during summer 2003：the differential response of vegetation classes to increased water deficit
Stratified analysis water deficit satellite imagery
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2009/5/13
The extraordinarily warm and dry summer experienced in SW Europe in 2003 provides an interesting case study for the analysis of the response of regional-scale vegetation variables to drier and hotter ...
Eco-geomorphology of banded vegetation patterns in arid and semi-arid regions
banded vegetation patterns semi-arid regions arid
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2009/5/13
The interaction between vegetation and hydrologic processes is particularly tight in water-limited environments where a positive-feedback links soil moisture and vegetation. The vegetation of these sy...
Analysis of effective resistance calculation methods and their effect on modelling evapotranspiration in two different patches of vegetation in semi-arid SE Spain
effective resistance calculation methods evapotranspiration semi-arid SE Spain
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2009/5/13
Effective parameters are of major importance in modelling surface fluxes at different scales of spatial heterogeneity. Different ways to obtain these effective parameters for their use in meso-scale ...
On the importance of including vegetation dynamics in Budyko's hydrological model
vegetation dynamics water management
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2009/5/7
The Budyko curve describes the patterns observed between between climate, evapotranspiration and run-off and has proven to be a useful model for predicting catchment energy and water balances. In this...
Implications of changing from grazed or semi-natural vegetation to forestry for carbon stores and fluxes in upland organo-mineral soils in the UK
semi-natural vegetation carbon stores upland organo-mineral soils
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2009/5/6
In the UK, as organo-mineral soils are a significant store of soil organic carbon (SOC), they may become increasingly favoured for the expansion of upland forestry. It is important, therefore, to asse...
Vegetation dynamics and soil water balance in a water-limited Mediterranean ecosystem on Sardinia, Italy
Vegetation dynamics Mediterranean ecosystem soil water balance
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2009/5/6
Mediterranean ecosystems are commonly heterogeneous savanna-like ecosystems, with contrasting plant functional types (PFTs, e.g. grass and woody vegetation) competing for water. Mediterranean ecosyste...
A conceptual dynamic vegetation-soil model for arid and semiarid zones
vegetation-soil model semiarid zones arid
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2009/5/6
Plant ecosystems in arid and semiarid climates show high complexity, since they depend on water availability to carry out their vital processes. In these climates, water stress is the main factor cont...
Estimation of vegetation cover resilience from satellite time series
vegetation cover satellite time series
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2009/5/4
Resilience is a fundamental concept for understanding vegetation as a dynamic component of the climate system. It expresses the ability of ecosystems to tolerate disturbances and to recover their init...
Analysis of soil and vegetation patterns in semi-arid Mediterranean landscapes by way of a conceptual water balance model
semi-arid Mediterranean water balance model vegetation types
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2009/5/4
This paper investigates the impact of various vegetation types on water balance variability in semi-arid Mediterranean landscapes, and the different strategies they may have developed to succeed in su...
Rainfall intermittency and vegetation feedbacks in drylands
Rainfall vegetation feedbacks drylands
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2009/4/29
We discuss a simplifed, conceptual model for the dynamics of the soil-vegetation system in drylands. The model considers the different dynamical processes taking place in vegetated and non-vegetated s...
Modelling groundwater-dependent vegetation patterns using ensemble learning
Vegetation patterns groundwater
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2009/4/29
Vegetation patterns arise from the interplay between intraspecific and interspecific biotic interactions and from different abiotic constraints and interacting driving forces and distributions. In thi...
Vegetation composition and soil microbial community structural changes along a wetland hydrological gradient
phospholipid fatty acid soil microbial Vegetation composition
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2009/4/28
Fluctuations in wetland hydrology create an interplay between aerobic and anaerobic conditions, controlling vegetation composition and microbial community structure and activity in wetland soils. In t...
Using official map data on topography, wetlands and vegetation cover for prediction of stream water chemistry in boreal headwater catchments
water chemistry dissolved organic carbon temporal resolution
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2009/4/28
A large part of the spatial variation of stream water chemistry can be related to inputs from headwater streams. In order to understand and analyse the dominant processes taking place in small and het...
Impacts of changes in vegetation cover on soil water heat coupling in an alpine meadow of the Qinghai-Tibet Plateau, China
soil water heat alpine meadow Qinghai-Tibet Plateau
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2009/4/28
Alpine meadow is one of the most widespread grassland types in the permafrost regions of the Qinghai-Tibet Plateau, and the transmission of coupled soil water heat is one of the most crucial processes...