نتایج جستجو برای: forest rehabilitation
تعداد نتایج: 174381 فیلتر نتایج به سال:
Trees are the most important biological elements of forest ecosystems. The variability of the tree species composition inhabiting in the Oriental beech forest, not only forms different forest types but also has a remarkable impact on the species diversity of forest floor plants, due to the existence of trees in the overstory layer. In this research, forest types of an an Oriental beech were ide...
forest types mapping, is one of the most necessary elements in the forest management and silviculture treatments. traditional methods such as field surveys are almost time-consuming and cost-intensive. improvements in remote sensing data sources and classification –estimation methods are preparing new opportunities for obtaining more accurate forest biophysical attributes maps. this research co...
Invasive species have a wide range of effects on soils and their inhabitants. By altering soils, through their direct effects on native soil organisms (including plants), and by their interaction with the aboveground environment, invasive soil organisms can have dramatic effects on the environment, the economy and human health. The most widely recognized effects include damage to human health a...
objectives: stroke is a major event in one's life, and patients will inevitably require the use of coping strategies in order to try to reestablish acceptable life equilibrium. due to the extensive role that nurses can be active members in the patient's rehabilitation plan, the mauk model is a model that focuses on stroke patients. for each stage of this model, mauk has developed ap...
forest roads are directions in natural habitats that used to transport wood products, secondary forest products and recreation. constructing forest roads causes trees clearing with specified width thus lead to direct or indirect changes in forest ecosystems and forest environment. this study aims to assess the changes of diversity and richness indices in main and secondary forest roads in a par...
abstract background: acute coronary syndrome is one of the major cardiovascular diseases that leads to a significant amount of morbidity. the purpose of the present study was to investigate the effect of cardiac rehabilitation on quality of life in patients with acute coronary syndrome. materials and methods: this was a clinical trial study conducted on 50 patients with acute coronary syndrome ...
Fire management practices affect alien plant invasions in diverse ways. I considered the impact of six fire management practices on alien invasions: fire suppression, forest fuel reduction, prescription burning in crown-fire ecosystems, fuel breaks, targeting of noxious aliens, and postfire rehabilitation. Most western United States forests have had fire successfully excluded for unnaturally lo...
The Sundaic region, comprising southern Peninsular Thailand, the Malay Peninsula and the Greater Sunda Islands of Borneo, Sumatra and Java, plus Palawan (Philippines), supports a diverse resident landbird avifauna. Many species are shared between islands (e.g. Borneo shares 61% of species with Java; the Greater Sunda Islands share 74–87% of birds with the Malay Peninsula), but there is also a m...
Abstract A water ecosystem is a dynamic balance system with certain structure and function, which composed of aquatic organism community environment interaction mutual restriction through material circulation energy flow. Living in an urban for long time can make people suffer from ‘urban disease’, seriously affect their physical mental health. Forest rehabilitation new form outdoor activity ma...
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