نتایج جستجو برای: especially in vegetation areas

تعداد نتایج: 17004845  

Journal: :Land 2023

Ground deformation is one of the most common geological disasters arising in underground mining areas, and mining-induced environmental impacts have resulted numerous concerns, especially on surface vegetation. The evaluation vegetation beneficial to revegetation areas; however, ground seldom been systematically evaluated explained long time scales despite long-term existence areas. To address ...

2013
Rafi Kent Oded Levanoni Eran Banker Guy Pe’er Salit Kark

Mountains provide an opportunity to examine changes in biodiversity across environmental gradients and areas of transition (ecotones). Mountain ecotones separate vegetation belts. Here, we aimed to examine whether transition areas for birds and butterflies spatially correspond with ecotones between three previously described altitudinal vegetation belts on Mt. Hermon, northern Israel. These inc...

Vegetation in any landscape reflects its health condition. Monitoring land use change and land cover plays a key role in environmental planning and management. Mazandaran province has always been considered by tourists due to its high tourism potential and consequently the vegetation, especially the forest, has been damaged. In this study, vegetation Contiguity and integrity in Mazandaran using...

2016
Xiaohe Gu Weiguo Li Lei Wang

In recent years, a close link between vegetation change and climate change has been established. Vegetation change can be detected with remotely sensed images, especially with normalized difference vegetation index time series records. We used change vector analysis, especially change vector magnitude (CV magnitude), as an indicator to better understand vegetation change. Twenty-one layers of C...

M. Akbarzade M.T. Gaemi Sh. Abedi

The study of the exclosure effects on the vegetation changes undergrazing and non-grazing conditions in the rangeland areas has particularimportance in the rangeland improvement and revivification projects. Theresearch was accomplished in semi-steppe KhoyBilehvar area, from 1999 to2005. Vegetation cover was annually measured within fixed plots during transact.The results showed that during nine...

ژورنال: مرتع 2023

Background and objectives: Mountain habitats, due to their climatic conditions, are considered to be very sensitive areas and generally have less plant diversity compared to the lower elevations. Unfortunately, in the past years, due to human attacks, parts of these areas have been destroyed and now some areas are either devoid of vegetation or have very little vegetation. Since Crataegus and B...

Journal: :Brazilian journal of biology = Revista brasleira de biologia 2003
J J Soares D W da Silva M I Lima

A map of the native vegetation remaining in São Carlos County was built based on aerial images, satellite images, and field observations, and a projection of the probable original vegetation was made by checking it against soil and relief surveys. The existing vegetation is very fragmented and improverished, consisting predominantly of cerrados (savanna vegetation of various physiognomies), sem...

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