نتایج جستجو برای: chahartagh forest reserve

تعداد نتایج: 135702  

Journal: :GISAP:Biology, Veterinary Medicine and Agricultural Sciences 2017

Management of natural ecosystems, like forests, has several objectives such as wood production, sustainability of ecological systems, preserving aestheti,c and cultural or psychological satisfaction. This management is especially essential in dry regions with sensitive biodiversity, like Iran. The aim of this research is to elaborate a management scheme for developing a sustainable tourism plan...

2004
S. Hummel

In forest reserves of the U.S. Pacific Northwest, management objectives include protecting late-semi habitat structure by reducing the threat of large-scale disturbances like wildfire. We simulated how altering withinand among-stand structure with silvicultural treatments of differing intensity affected late-seral forest (LSF) structure and fire threat (FT) reduction over 30 years in a 6070-ha ...

Journal: :Ying yong sheng tai xue bao = The journal of applied ecology 2004
Zhiyun Ouyang Tongqian Zhao Jingzhu Zhao Han Xiao Xiaoke Wang

Ecosystem services imply the natural environmental conditions on which human life relies for existence, and their effectiveness formed and sustained by ecosystem and its ecological processes. In newly research reports, they were divided into four groups, i. e., provisioning services, regulation services, cultural services, and supporting services. To assess and valuate ecosystem services is the...

2017
Kalyani Chatterjea

Singapore, a tropical island of only 716 km2, has substantial land under forest. But rapid urbanisation coupled with the scarcity of land has also resulted in exten‐ sive land clearance. Though highly urbanised, Singapore has managed to retain 4.5% of the land area under nature conservation, and 2.9% under closed forest. Out of four protected areas, two of these, the Central Water Catchment For...

2016
Shangbin Bai Yixiang Wang Richard T. Conant Guomo Zhou Yong Xu Nan Wang Feiyan Fang Juan Chen

Native species are generally thought not to encroach on adjacent natural forest without human intervention. However, the phenomenon that native moso bamboo may encroach on surrounding natural forests by itself occurred in China. To certificate this encroaching process, we employed the transition front approach to monitor the native moso bamboo population dynamics in native Chinese fir and everg...

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