نتایج جستجو برای: designing a rich ecosystem

تعداد نتایج: 13483163  

Journal: :Ecological applications : a publication of the Ecological Society of America 1993
Jerry F Franklin

Efforts to preserve biological diversity must focus increasingly at the ecosystem level because of the immense number of species, the majority of which are currently unknown. An ecosystem approach is also the only way to conserve processes and habitats (such as forest canopies, belowground habitats, and hyporheic zones) that, with their constituent species, are poorly known. Continued concern w...

2004
Risto Sarvas

This paper describes two systems for picture taking with mobile phone cameras. The first system, MMM, is a platform for generating semantically rich metadata for mobile pictures at the time of image capture. The second system, MobShare, is a mobile picture sharing and discussing system that takes advantage of the temporal and social information in the camera phone. The paper also discusses comb...

2002
Alan D. Jassby James E. Cloern Brian E. Cole Cindy Moore

Although nutrient supply often underlies long-term changes in aquatic primary production, other regulatory processes can be important. The Sacramento-San Joaquin River Delta, a complex of tidal waterways forming the landward portion of the San Francisco Estuary, has ample nutrient supplies, enabling us to examine alternate regulatory mechanisms over a 21-yr period. Delta-wide primary productivi...

2017
X. Lu Frank S. Gilliam F. S. Gilliam G. Yu L. Li Q. Mao H. Chen

Dissolved organic carbon (DOC) plays a critical role in the carbon (C) cycle of forest soils, and has been recently connected with global increases in nitrogen (N) deposition. Most studies on effects of elevated N deposition on DOC have been carried out in N-limited temperate regions, with far fewer data available from N-rich ecosystems, especially in the context of chronically elevated N depos...

Journal: :Agronomy for Sustainable Development 2023

Abstract Duru et al. (Agron Sustain Dev 35:1259-1281, 2015) highlighted a missing tool for studying and improving the performance of cropping systems in transition to highly diversified agriculture. In response, this paper proposes concept designing, modeling, monitoring, auditing desired ecosystem services, intercropping agroforestry systems. We have labelled ESSU (Ecosystem Services functiona...

Journal: :Rocznik Ochrona Srodowiska 2021

A small hydro-power plant designing in aspect of current legislation is an interdisciplinary problem because the fact that efficiency priority not so important as ecological one. In this article regulations concerning permissions for operation are discussed. The criteria presented a impact on river ecosystem.

پایان نامه :0 1370

all analytical methods are generally based on the measurement of a parameter or parameters which are somehow related to the concentration of the species.an ideal analytical method is one in which the concentration of a species can be measured to a high degree precision and accuracy and with a high sensitivity. unfortunately finding such a method is very difficult or sometimes even impossible.in...

Background. It cannot be denied that sport ecosystem consists of complex stakeholders. According to that, smart orchestration was needed to permit integration and promote active cross-sectoral. It required a suitable strategy to integrate and engage the entire system at any individual group, enterprise-level, and public sector. Therefore, the practical strategy will engage the entire system, so...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده ادبیات و علوم انسانی دکتر علی شریعتی 1390

در هر برنامه آموزشی، مهم ترین فاکتور موثر بر موفقیت دانش آموزان کتاب درسی است (مک دونو و شاو 2003). در حقیقت ، کتاب قلب آموزش زبان انگلیسی است( شلدن 1988). به دلیل اهمیت والای کتاب به عنوان عنصر ضروری کلاس های آموزش زبان ، کتب باید به دقت ارزیابی و انتخاب شده تا از هرگونه تاثیر منفی بر دانش آموزان جلوگیری شود( لیتز). این تحقیق با طراحی پرسش نامه ارزیابی کتاب که فرصت ارزیابی معتبر را به اساتید د...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید