Results 41 to 50 of about 35,580 (262)

ارزیابی تناسب سرزمین برای کاشت صنوبر [PDF]

مجله جنگل ایران
مقدمه: با توجه به اجرای طرح استراحت جنگل‌های شمال کشور، تلاش‌ها برای افزایش تولید چوب در کشور با استفاده از درختان تندرشد مورد توجه قرار گرفته و تشویق مالکان اراضی برای کشت این درختان افزایش یافته است. صنوبرها به‌سبب ویژگی‌های بسیار ممتاز، همواره در میان
حمیدرضا عباسی, فرهاد خاکساریان, رضا باقری, آزاده صالحی, فرهاد اسدی   +4 more
doaj   +1 more source

Carbon‐Fixing Bacterial Network Complexity Mediates Soil Multifunctionality in a Panax notoginseng‐Pinus armandii Agroforestry System

Land Degradation &Development, EarlyView.
ABSTRACT Autotrophic carbon‐fixing bacteria (CFB) are central contributors to soil carbon sequestration and biogeochemical carbon cycling in agroforestry ecosystems and can act as reliable biological indicators for evaluating agroforestry ecosystem sustainability.
Jingying Hei, Rui Rui, Shu Wang, Xiahong He   +3 more
wiley   +1 more source

Topographic and Climatic Determinants of Soil Organic Carbon Across Landscapes: A Meta‐Analysis

Land Degradation &Development, EarlyView.
ABSTRACT The soil is the greatest natural store of organic carbon, holding between 1500 to 1550 Pg C of organic carbon at the top 100 cm of the soil globally—roughly twice the carbon pool in the atmosphere. The spatial distribution of this stock is controlled by a complex chain of controls: topographic position regulates the hydrological redistribution,
Vishal Sharma, Syed Hujjat ul Baligah, Tajamul Islam Shah, Shahid Shuja Shafai, Owais Bashir, Syed Sheraz Madhi, S. Naresh Kumar, Ayyandar Arunachalam, Shabir Ahmed Bangroo   +8 more
wiley   +1 more source

Genetic analysis of the rare forest bryophyte Dicranum viride in the boreo‐nemoral zone near the northern distribution range limit

Nordic Journal of Botany, EarlyView.
Bryophytes are important forest ecosystem elements, being an integral part of biodiversity. Genetic studies contribute to bryophyte population ecology by helping to understand species historical distribution patterns and genetic diversity at different scales.
Anna Mežaka, Ilona Plaksenkova, Līga Anna Leitāne, Baiba Krivmane, Vilnis Šķipars, Dainis Ruņģis   +5 more
wiley   +1 more source

Patterns and environmental drivers of root traits across hydrological gradients in old growth boreal forests

Oikos, EarlyView.
Many key ecosystem functions are affected by plant roots and their traits. However, understanding of the patterns in, and drivers of, root traits lags far behind equivalent knowledge of above‐ground tissues, particularly in boreal old growth forests. We surveyed community‐level root traits across 11 old growth forests spanning a wide latitudinal range ...
Naomi Vöhringer, Hanna Axén, Anders Ahlström, Gesche Blume‐Werry, Daniel B. Metcalfe   +4 more
wiley   +1 more source

Speciation with gene flow

PLANTS, PEOPLE, PLANET, EarlyView.
Biodiversity is threatened by human activities, with extinction debt accumulating rapidly. Many of these activities change the connectivity of populations, fragmenting existing population systems or bringing previously isolated populations or species into contact.
Zhiqin Long, Xu Zhang, Yue Yu, Gregory L. Owens, Diana J. Rennison, Clarisse Palma‐Silva, Daniel Ortiz‐Barrientos, Loren H. Rieseberg   +7 more
wiley   +1 more source

Tracing change in the public perception of plants: insights from archives and social media in China

PLANTS, PEOPLE, PLANET, EarlyView.
As urbanization accelerates, historic gardens serve as vital cultural treasures that offer spiritual and cultural support to the public. This study proposes an innovative approach that merges historical records from the Qing Dynasty with contemporary social media data to explore changes in public perceptions of these gardens.
Dong Xu, Pei‐yan Wang, Ya‐nan Li, Nan Hu, Yun‐yuan Li   +4 more
wiley   +1 more source

The Class I HD-ZIP transcription factor PagHB7a functions as a positive regulator of salt tolerance in Populus

Forestry Research
Homeodomain leucine zipper (HD-ZIP) proteins are plant-specific transcription factors that play important roles in plant development and abiotic responses. In our previous study, the PagHB7a gene was identified, which belongs to the Class I HD ZIP family,
Bowen Zhou, Na Xu, Zhuoran Yang, Xingkai Sun, Yihao Sun, Zhenyang Ji, Li-Jun Liu   +6 more
doaj   +1 more source

Evaluation of susceptibility poplar species and clones (Populus spp.) against two poplar key pests; Monsteira unicostata and Melanophila picta in Hamadan province [PDF]

نامه انجمن حشره‌شناسی ایران
Monosteira unicostata (Mulsant & Rey.) (Poplar lace bug) and Melanophila picta Pall. (Poplar wood borer) are significant pests of poplar and willow trees in Hamadan province.
Alireza Rajabi Mazhar, S. Ebrahim Sadeghi   +1 more
doaj   +1 more source

Ce que disent les mots. Nommer la ville lusitanienne

Gaia, 2020
In the territories conquered in the early Empire, the juridical hierarchy of civic communities appears in the context of the administrative prouinciae reorganization.
Susana Marcos
doaj   +1 more source