نتایج جستجو برای: burned rangelands diversity

تعداد نتایج: 196275  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده منابع طبیعی و علوم دریایی 1385

چکیده ندارد.

2004
Carey P. Yeager Andrew J. Marshall Claudia M. Stickler Colin A. Chapman

The effects of the fires that burned over 4.7 million ha of Indonesia’s tropical forests during 1997 and 1998 are largely unknown. We assess the immediate impacts of these fires on five forest areas representing several different habitats in Kalimantan 1-2 months after the fires went out. Comparisons of transects in burned and unburned forest areas were conducted at three sites: Tanjung Puting ...

Diana Askarizadeh Dnyan Patil Mohammad hasan Jouri Nosrat Safaian, Rivandra S. Gavali

Based on the importance and role of species diversity and richness as ameasurement of the health of an ecosystem; studying of their components can lead toevaluate the health condition of rangeland. This research was carried out in a part ofhighland mountainous rangeland of Mount Alborz Range in Iran. Diversity and richnesswere assessed as an ecosystem health indicator. The study area was locate...

Journal: :Land 2021

Spatially patchy fire creates landscape-level diversity that in turn stabilizes several rangeland ecosystem services, including forage production and habitat availability. To enhance biodiversity livestock production, efforts are underway to restore regimes rangelands throughout the Great Plains. However, invasive species such as tall fescue Schedonorus arundinaceus syn. Festuca arundinacea, in...

Journal: :Folia Forestalia Polonica, Seria A - Forestry 2013

Journal: :Frontiers in Ecology and Evolution 2021

A grazing enclosure (GE) is one of the most effective techniques for restoring degraded rangelands by modifying composition, abundance, and diversity species. However, effect GEs on different intensities durations compared to open-grazing (OG) not well known. We aimed assess GE characteristics plant established five plots in a short-term enclosure, long-term an OG treatment examine vegetation s...

2010
Kirk W. Davies Jonathan D. Bates Tony J. Svejcar Chad S. Boyd

Livestock grazing potentially has substantial influence on fuel characteristics in rangelands around the globe. However, information quantifying the impacts of grazing on rangeland fuel characteristics is limited, and the effects of grazing on fuels are important because fuel characteristics are one of the primary factors determining risk, severity, continuity, and size of wildfires. We investi...

2010
Rhonda Skaggs

Rangelands are expansive, unimproved lands located in arid or semi–arid regions, spanning a variety of landscapes including savannahs, high and low altitude deserts, mountain meadows, and tundra. Rangelands are generally unsuitable for crop production due to aridity, topography, and extreme temperatures. Rangelands support varying mixtures of native and nonnative grasses, grass–like plants, for...

Journal: :Ecology of food and nutrition 2015
Maureen Mayanja Chris Rubaire-Akiiki John Morton Stephen Young Ted Greiner

We explore how diet diversity differs with agricultural seasons and between households within pastoral and agro-pastoral livelihood systems, using variety of foods consumed as a less complex proxy indicator of food insecurity than benchmark indicators like anthropometry and serum nutrients. The study was in the central part of the rangelands in Uganda. Seventy nine households were monitored for...

Biodiversity is one of the important concepts in ecology and vegetation management, and plays an important role in the health, production, and evaluation of ecosystems. Species diversity is a major part of biodiversity and one of the most important parameters of ecosystem changes. In this research, the data of the rangeland evaluation different climate zones of Isfahan province were used in fiv...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید