الفهرس 
المقدمة
الوضع الراهن للغابات الخشبية فى مصريوجد فقط 14 صفحة متاحة للعرض العام
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المستخلص
Summary
The increasing demand for wood in the Arab Republic of Egypt
cost about 7.12 billion pounds annually, which represents a big burden on
the trade balance, especially with the increase in international prices and
the rise in the price of the dollar. Egypt has the potential of wood
production locally at low cost where all elements of production and the
geographical and climatic factors suggest the expansion of the wood
forest sector. Only remaining is the good strategic planning based on a
clear vision among the decision makers to implement national sustainable
development plan.
The study aims to highlight ways of maximizing the economic
benefit from the volume of government spending in the field of treated
sewage reuse. Locally produced wood replaces imported timber, and
identify ways to enhance the added value of products expected from wood
forests through different tree cutting courses.
The research problem can be characterized by the increasing
increase in the value of import bill of timber, especially after the
liberalization of the foreign exchange rate, which has led to the confusion
of the local market for the furniture industry, which employs large
numbers of this population. On the other hand, the Nile River and its
branches have increased the incidence of renal failure, hepatic failure and
cancer significantly recently, which affects the researcher’s interest to
conduct this study.
The descriptive and quantitative methods of statistical analysis
were used. The descriptive methods, such as averages and percentages,
and quantitative methods were used as multiple regression methods with
some study variables to determine the strongest variables affecting wood
forest areas irrigated with treated wastewater in Egypt. The study also
used general time trend equations, and financial feasibility criteria.
2
Summary.
Ahmed K. Fathalla, (2017), M.Sc., Fac. Agric., Ain Shams Univ.
The study relied on available official secondary data from state
institutions such as the Ministry of Housing, Utilities and Urban
Communities, the Ministry of Environment, the Ministry of Agriculture
and Land reclamation, the Holding Company for Drinking water and
Sanitation, the Sadat city Development Authority, and the reports issued
by the Food and Agriculture Organization of the United Nations, the
Central Agency for Public Mobilization and Statistics issued published
and unpublished data. The study also relied on preliminary data collected
through the use of field research to obtain data through the questionnaire
form, biting personal interviews with the leaders of state agencies
involved in the field reuse of treated wastewater in the establishment of
planted wood forest research centers.
This thesis included the main studies and research related to the
subject of the study during the period from 2001 to 2012, in order to
identify the different research aspects and to know the most important
scientific and applied results that could be reached to determine the most
important ways to follow them. In identifying the problem and finding the
best and most appropriate solutions to the Egyptian reality, the most
important results of these studies indicated that sustainable development
can be achieved using treated wastewater available in woodland planting.
The removal of pollution by exploiting the ability of some types of wood
trees to absorb some of the heavy elements in treated wastewater so as not
to accumulate in the soil layers, but should focus on increasing studies on
the economic aspects, and the feasibility of investment in the wood forest
that irrigated treated wastewater. The time frame of the most important
economic concepts used in this study and technical concepts related to the
cultivation of wood forests, and concepts are related to the area of reuse
of treated wastewater.
3
Summary.
Ahmed K. Fathalla, (2017), M.Sc., Fac. Agric., Ain Shams Univ.
This study also dealt with the current situation of each of the areas
of wood forests, water resources and sewage water in Egypt, including the
development of the area from 1990 to 2015, equivalent to 2.9 thousand
feddans. The increase during the study period amounted to about 20
thousand hectares equivalent to 47.6 thousand feddans, an increase of
about 60%. It also reviewed the current situation of the areas of wood
forests that irrigate the treated wastewater according to the authorities
established and maintained in the Arab Republic of Egypt, and approved
and Urban Communities, the Ministry of Agriculture and Land
reclamation, the Ministry of Environment, has been shown by the study
that the total allocated forest areas amounted to about 111.7 thousand
Feddans, the cultivated ones area amounted to about 21.3 thousand
Feddans, and that the total remaining area of approximately 90.4 thousand
Feddans.
This study has also focused on the sources of water resources in
the Arab Republic of Egypt and the characteristics of the water balance
during the period from 2007/2008 to 2014/2015. The average total
Egyptian water resources according to their sources during this period
was about 74.38 billion cubic meters / the average annual water use in the
Arab Republic of Egypt during the study period was 74.23 billion cubic
meters. Thus, an average water surplus of about 0.5 billion cubic meters
was observed during the period under study. The results show a surplus of
2.13 billion meters cubic meters by about 0.02% during 2007/2008, due
to the decrease in water use in the agriculture, drinking water and health
sectors for the rest of the study period, while a deficit of 0.50, 0.34, 0.10
billion cubic meters was observed in 2009/2010, 2011/2012, 2012/2013
respectively, while there was a tie between the quantity of water resources
supplied and the quantity consumed during the years 2008/2009,
2010/2011, 2013/2014, 2014/2015.
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Summary.
Ahmed K. Fathalla, (2017), M.Sc., Fac. Agric., Ain Shams Univ.
It also reviewed the quantities of wastewater recycling in billion
cubic meters during the period from 2007/2008 to 2014/2015. It is clear
from the attempts of the various statistical analysis of the data available to
the researcher when studying the directional relation to the development
of the quantity of sewage recycling in billion cubic meters Egypt during
the period of study insignificant change in the quantities of sewage
circulation, which reflects that the data revolve around the mean
arithmetic, the relative stability.
A comparison was made between the quantities of wastewater in
the Arab Republic of Egypt for the years 2005-2014 according to the
statistics of the Holding company for Potable water and Wastewater. The
capacity of the treatment plants during 2014 was about 13 million m3 /
day compared to the quantity in 2005 which amounted to about 8 million
cubic meters a day, an increase of about 5 million cubic meters / day by
38.46% during this period. The average actual capacity of treatment
plants during 2014 was about 95 million cubic meters / day compared to
the quantities in 2005 which amounted to about 6 million cubic meters /
day, an increase of 35 million cubic meters the number of treatment plants
has increased by 2014 to reach 382 treatment plants compared with 2005,
with 149 treatment plants, with an increase of 233 treatment plants by
60.99%.
The final section of this study has dealt with the economic aspects
of the forest sector through the case study of the 1100 acre forest with
oxidation ponds on the sewage treated in Sadat city in terms of
production, costs and revenues. According to the questionnaire, intensive
tree planting and the sale of timber at a 10 year cycle to the loss of the
project, while it was better for the circumstances of the project to conduct
the sale at a cycle of 15 years at an economic price to achieve economic
profits, and from the environmental point of view through this project
safe water from treated sewage and reduce air pollution by minimizing
5
Summary.
Ahmed K. Fathalla, (2017), M.Sc., Fac. Agric., Ain Shams Univ.
the effects of the El Sadat industrial zone. These trees are windbreakers,
stabilizing soil and resisting sand crawling on agricultural land adjacent to
the city as well as all other environmental benefits, as well as social
benefits (providing jobs for the citizens).
The possibility of substituting forest wood for Egypt imports of
wood was discussed. As the results of the study showed that there is a
relationship between the density of trees and the expected size of
production according to the periods of different cutting areas are
recommended to follow. The expected production of cultivated areas can
lead to saving about le 7.12 billion annually, which will positively affect
the agricultural trade balance, which will reduce the deficit in the balance
of payments. the results showed that the overall average volume of Egypt
wood imports reached about 12.3 thousand tons / year and that the total
area of planted forests in the Arab republic of Egypt is about 21.3
thousand feddans. The total production of wood for the total cultivated
area at the cutting cycle is 15 years about 8.3 million and thus can meet
the needs of the local market of timber can be exported surplus and thus
shows the high economic return from the exploitation of treated sewage in
the cultivation of wood forests, but it depends on the availability of
technical level required to meet the specifications of local wood with
specifications international standards required by various wood industries.
Therefore, the most important recommendations included the need
to expand the reuse of treated wastewater in the cultivation of woodland
forests in proportion to the actual capacity of the sewage treatment plants,
which is about 3.595 billion cubic meters / year, enough to grow about
328.3 thousand feddans, where that the area planted with forests in Egypt
is currently about 21.250 thousand Feddans, in the context of the
application of security requirements and safety standards to avoid the
negative effects of abuse to maximize the effects of economic,
environmental and social alike