نتایج جستجو برای: vegetation types

تعداد نتایج: 531142  

2000
Roswitha Stolz Karl Schneider Leon Schouten Hans van Leeuwen Heike Bach

Within the frame of the project GeoBIRD (ESA contract 12950/98/NL/GD entitled "Retrieval of geoand bio-physical information from remote sensing data") an attempt was made to derive soil moisture by combining the microwave remote sensing model CLOUD and the land surface process model PROMET-V (PROcess oriented Modular Environment and Vegetation model. Three test sites in Europe, which show diffe...

2013
Ryan D. Haffele Michael W. Eichholz Cami S. Dixon

Conservation efforts to increase duck production have led the United States Fish and Wildlife Service to restore grasslands with multi-species (3-5) mixtures of introduced cool season vegetation often termed dense nesting cover (DNC). The effectiveness of DNC to increase duck production has been variable, and maintenance of the cover type is expensive. In an effort to decrease the financial and...

Journal: :journal of rangeland science 2012
abdolhossein rezaipoorbaghedar mohammad hossein hakimi majid sadeghinia hamid reza azimzadeh

in order to sustainable use of rangelands, it is necessary to recognize water, soil, and vegetation cover and analyze their relationships. physical and chemical properties of soil are effective in distribution of plant species in local area. to determine the effects of some soil properties on species distribution of eurotia ceratoides and stipa barbata in baghedar summer region of bafgh, three ...

Journal: :Remote Sensing 2012
Jochem Verrelst Erika Romijn Lammert Kooistra

River floodplains in the Netherlands serve as water storage areas, while they also have the function of nature rehabilitation areas. Floodplain vegetation is therefore subject to natural processes of vegetation succession. At the same time, vegetation encroachment obstructs the water flow into the floodplains and increases the flood risk for the hinterland. Spaceborne pointable imaging spectros...

2006
R. Darvishzadeh C. Atzberger A. K. Skidmore

Spectral vegetation indices are frequently used to estimate vegetation biophysical/biochemical characteristics. In general they have been proposed to reduce spectral effects caused by external factors such as the atmosphere and the soil background. This study evaluated narrow band vegetation indices for estimation of vegetation leaf area index. The study takes advantage of using a dataset colle...

2003
Noah S. Diffenbaugh Lisa C. Sloan Mark A. Snyder Jason L. Bell Jed Kaplan Sarah L. Shafer Patrick J. Bartlein

[1] Anthropogenic increases in atmospheric carbon dioxide (CO2) concentrations may affect vegetation distribution both directly through changes in photosynthesis and wateruse efficiency, and indirectly through CO2-induced climate change. Using an equilibrium vegetation model (BIOME4) driven by a regional climate model (RegCM2.5), we tested the sensitivity of vegetation in the western United Sta...

2018
Jiabao Li Zehao Shen Chaonan Li Yongping Kou Yansu Wang Bo Tu Shiheng Zhang Xiangzhen Li

Citation: Li J, Shen Z, Li C, Kou Y, Wang Y, Tu B, Zhang S and Li X (2018) Stair-Step Pattern of Soil Bacterial Diversity Mainly Driven by pH and Vegetation Types Along the Elevational Gradients of Gongga Mountain, China. Front. Microbiol. 9:569. doi: 10.3389/fmicb.2018.00569 Stair-Step Pattern of Soil Bacterial Diversity Mainly Driven by pH and Vegetation Types Along the Elevational Gradients ...

Journal: :Ecosphere 2023

Assemblage patterns and processes of aquatic vegetation in most large floodplain rivers are not well understood, particularly after plant recovery. Identifying types, which recurring groupings based on species composition, diversity, abundances, can describe assembly environmental drivers that aid conservation planning management. We used a 22-year dataset (n = 18,000 sampling plots) to identif...

2005
Grant A. Harper Katharine J. M. Dickinson Philip J. Seddon

The relative abundance of ship rats (Rattus rattus), Norway rats (R. norvegicus), and Pacific rats (R. exulans), was measured in four vegetation types on Stewart Island/Rakiura, over six consecutive seasons. Ship rats were found in all four vegetation types and dominated in podocarp-broadleaf forest and riparian shrubland. Norway rats were most common in subalpine shrubland and Pacific rats dom...

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