نتایج جستجو برای: protected natural landscape

تعداد نتایج: 593018  

Journal: :پژوهش های جغرافیای طبیعی 0
وحید امینی پارسا دانشجوی دکتری برنامه ریزی محیط زیست دانشگاه تهران اطهره نژادی دکتری برنامه ریزی محیط زیست دانشگاه تهران

introduction land use and land cover change (lucc) is a complex issue resulted from biophysical, socio-economic, cultural, organizational and technological factors in different spatial and temporal scales. lucc considered as an important threat to biodiversity as causing the fragmentation, natural vegetation destruction and natural areas isolation the regions which managed by environmental prot...

2017
Sophie A M Elliott Alessandro D Sabatino Michael R Heath William R Turrell David M Bailey

Nature conservation and fisheries management often focus on particular seabed features that are considered vulnerable or important to commercial species. As a result, individual seabed types are protected in isolation, without any understanding of what effect the mixture of seabed types within the landscape has on ecosystem functions. Here we undertook predictive seabed modelling within a coast...

2004
David M. Theobald

In press: Frontiers in Ecology and Environment In a nutshell:-An encouraging trend is ecological research conducted along the urban-rural gradient.-But, clear definitions and quantitative metrics are needed to place research more precisely within the landscape context.-Ecologists should measure the degree of human modification by metrics that capture important ecological processes and land use/...

Journal: :Restoration Ecology 2023

In the United States, National Park Service Civil War battlefield units are managed for both historical accuracy (i.e., to represent landscape conditions at time of conflict interpretation), and natural resource protection. However, managing goals can create conflicts as many battlefields were largely open or in second growth forests historically, but now harbor significant forest resources aft...

Journal: :منظر 0
فرزانه السادات دهقان پریچهر صابونچی

this paper offers a report about the professional workshop of researching tehran which was held in august 2015 in tehran along with the fourth and fifth conference on urban landscape phenomenology. in this regard denis delbaere and frédéric poussin, experts on landscape and territorial planning, and professors of universities in france, explained their first impressions of tehran in their first...

Journal: :Economic and social changes: facts, trends, forecast / Экономические и социальные перемены: факты, тенденции, прогноз 2015

Journal: :Conservation biology : the journal of the Society for Conservation Biology 2007
Rachael Winfree Terry Griswold Claire Kremen

It is important for conservation biologists to understand how well species persist in human-dominated ecosystems because protected areas constitute a small fraction of the Earth's surface and because anthropogenic habitats may offer more opportunities for conservation than has been previously thought. We investigated how an important functional group, pollinators (bees; Hymenoptera: Apiformes),...

Journal: :International Journal of Geographical Information Science 2011
Xia Li Chunhua Lao Xiaoping Liu Yimin Chen

Optimal zoning of protected natural areas is important for conserving ecosystems. It is an NP-hard problem which is difficult to solve by using common geographic information system (GIS) functions. Another problem is that existing optimization methods ignore potential land-use dynamics in formulating optimal patterns. This article has developed a new method for solving complicated zoning proble...

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