نتایج جستجو برای: forest and rangelands

تعداد نتایج: 16850589  

Journal: :Mountain Research and Development 2021

Forest types mapping, is one of the most necessary elements in the forest management and silviculture treatments. Traditional methods such as field surveys are almost time-consuming and cost-intensive. Improvements in remote sensing data sources and classification –estimation methods are preparing new opportunities for obtaining more accurate forest biophysical attributes maps. This research co...

ژورنال: علوم آب و خاک 2007
جعفر اولادی, , سعید ساروئی, , حمید جلیلوند, , هومن لطیفی, ,

In order to evaluate the capability of ETM+ remotely- sensed data to provide "Forest- shrub land- Rangeland" cover type map in areas near the timberline of northern forests of Iran, the data was analyzed in a portion of nearly 790 ha located in Neka- Zalemroud region. First, ortho-rectification process was implemented to correct the geometric errors of the image, which yielded 0/68 and 0/69 pix...

Abolfazl Haji Mollahoseini Abolfazl Sharifiyan Bahraman, Ahmad Abedi Sarvestani Hossein Barani

Rangelands are known as one of the main income resources for their exploiters.In the recent century, management of Iran rangeland has undergone vast transformationsbecause of vulnerable socio-economic conditions of pastoralists. A study was done toprovide a clear picture of the status and utilization of Aq Qala rangelands via assessinginternal and external environmental factors affecting the ut...

Land-use change is one of the most important challenges of land-use planning that lies with planners, decision-makers and policymakers and has a direct impact on many issues, such as economic growth and the quality of the environment. The present study examines the land use change trends in Behbahan city for 2014 and 2028 using LCM in the GIS environment. Analysis and visibility of user variati...

Journal: :مرتع و آبخیزداری 0
فاطمه هادیان کارشناس ارشد مرتع داری، دانشکدة منابع طبیعی، دانشگاه صنعتی اصفهان رضا جعفری استادیار دانشکدة منابع طبیعی، دانشگاه صنعتی اصفهان حسین بشری استادیار دانشکدة منابع طبیعی، دانشگاه صنعتی اصفهان سعید سلطانی دانشیار دانشکدة منابع طبیعی، دانشگاه صنعتی اصفهان

because soil moisture condition affects vegetation changes hence, monitoring of drought and vegetation changes are among valuable management tools in these ecosystems. nowadays, satellite images are used as a low-cost and fast method for vegetation study in different scales. vegetation change is assessed using vegetation spectral characteristics. this study aimed to analyze and monitor the vege...

Sustainable forest management standards and measurement instruments subject and use them as the main tool is very important for monitoring and control in forest management. Sustainable progress monitoring and measuring possible by tools and standards. Tools and standards to help sustainable forest management can be more accurate and better information provided to forest managers and decision-ma...

2013
M. Reyahi Khoram

Land use planning means managing our land and resources and it focuses on the functions of ecosystems. The main purpose of this study is to determine the places and sites with necessary capabilities for ecotourism, environmental conservation, agricultural activities, range management, forestry, afforestation, aquaculture, city planning and industrial development in the studied area. This resear...

Aidin Parsakhoo Ataollah Kavian Atta Safari,

Forests are an important economic source for human and have key role in nutrient cycle, hydrology and ecosystem performance, any interference in this vital ecosystem causes to damage to forests. Mechanical logging and road construction in forest areas have led to much soil compaction. Soil physical and chemical properties were studied in parts of road and non-road in the Darabkola forest of Ira...

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