نتایج جستجو برای: soil rehabilitation

تعداد نتایج: 248898  

Journal: :محیط زیست طبیعی 0
علی اکبرزاده دانش آموخته کارشناسی ارشد، پردیس کشاورزی و منابع طبیعی، دانشگاه تهران، ایران منوچهر گرجی استادیار پردیس کشاورزی و منابع طبیعی، دانشگاه تهران، ایران حسینقلی رفاهی استاد پردیس کشاورزی و منابع طبیعی، دانشگاه تهران، ایران حسن روحی پور دانشیار پژوهشی بخش بیابان موسسه تحقیقات جنگلها و مراتع کشور، ایران

today's, adverse effects of off-site erosion, namely damages received from sediment, is a serious bioenvironmental problem. one of the methods for temporary soil stabilization before permanent rehabilitation of vegetation cover, especially on slopes, for mitigating of bioenvironmental contaminants, is using materials having property to cementate the dispersed particles on the soil surface....

2015
Robert R. Blank Tye Morgan Fay Allen

Worldwide, exotic invasive grasses have caused numerous ecosystem perturbations. Rangelands of the western USA have experienced increases in the size and frequency of wildfires largely due to invasion by the annual grass Bromus tectorum. Rehabilitation of invaded rangelands is difficult; but long-term success is predicated on establishing healthy and dense perennial grass communities, which sup...

Journal: :Soil Use and Management 2022

Restoration of degraded grasslands through improved management is among the possible sustainable solutions to compensate for anthropogenic soil carbon (C) emissions. While several studies have shown a positive effect rehabilitation on C, impact CO2 emissions still uncertain. Therefore, this study aimed at quantifying grassland in grassland, South Africa. Commonly used practices were considered,...

Journal: :Revista Brasileira De Ciencia Do Solo 2023

Mining is a significant driver of soil mobilization, which impacts its physical, chemical, and biological properties. Changes in land-use affect the distribution organic matter fractions stable aggregates, process that still poorly understood, especially drastically altered areas. Recovering monitoring quality to ensure sustainable development agricultural crops these areas after mining challen...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تهران 1370

حوضه آبخیز سدمخزنی شهید پارسا در جنوب شرقی شهرستان فردوس استان خراسان واق گردیده است . بااحداث این سد علاوه برآبیاری اراضی موجود، 700 هکتار از اراضی جدید پایین دست به زیر کشت می روند. عمده ترین معضل موجود در رابطه با حوضه آبخیز، وجود بار رسوب فراوان و تجمع آن در پشت مخزن سد می باشد. لذابه علت عدم وجود اطلاعات کافی از وضعیت فرسایش خاک در حوضه آبخیز، دراین رساله بررسی و مطالعه فرسایش پذیری خاک ان...

Journal: :Agronomy Journal 2021

Approaches to restore productivity eroded soils are urgently needed sustain food security. We evaluated plant response soil-landscape rehabilitation, in which approximately 15 cm of topsoil was moved from depositional landscape positions the upper slope. Crop monitored for 6 yr a corn (Zea mays L.)–soybean [Glycine max (L.) Merr.] rotation at severely site and 4 wheat (Triticum aestivum moderat...

2016
Yajuan Zhu Guojie Wang Renqiang Li

Water is a limiting factor for plant growth and vegetation dynamics in alpine sandy land of the Tibetan Plateau, especially with the increasing frequency of extreme precipitation events and drought caused by climate change. Therefore, a relatively stable water source from either deeper soil profiles or ground water is necessary for plant growth. Understanding the water use strategy of dominant ...

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