فصلنامه استراتژی راهبردی جنگل
پیاپی 1 (بهار 1395)

The Agriculture sector is producing substructure of every country. The amount of investment in agricultural productivity sector is the most important statistical indicator in studying the processing of this field. In this study¡ we deal with five years developmental plan in the domain of Economics¡ social and cultural problems. Despite the attention given to the agricultural sector in every five years developmental plan¡ it hasn’t been able to achieve its goals and aims. In the first year developmental plan the amounts of credits specifically given to reconstruction by government to the agricultural sector has been grown up to 42 percent while private investment in agricultural sector has been up to -72.3percent growth. In the second year developmental plan in 1994¡ the economical growth rate of this period approved 5.1 percent in that year. The growth rate of production during the second year developmental plan gained in practice was on the average 3.6 percent which was less than the aims of the program. In the third year of economic developmental plan which has been begun from 1991¡ the agriculture sector has had better growth than previous developmental plans and that was because of the export promotion of non-petroleum of the country. The ratio of dietary autarky in fourth year developmental plan¡ which lasted 5 years long¡ was 75 percent at the beginning of 2004¡ but reduced 55 percent at the end of fourth years plan (2009) which shows the intensification of an increasing in the imports of foodstuffs. In the fifth developmental plans there has been no focus on agriculture sector and less attention has been paid to it. Therefore¡ it is concluded that only the third developmental plan in agricultural sector has been succeeded in all ensuing and previous developmental plans. In all developmental plans it has been emphasized on promotion of investment in agricultural sector; but this full-expected promotion has never come to happen¡ because this investment hasn’t had developmental sector and regarding the status quo the possibilities of capital investment in agricultural sector is in very low level.

The salty lands constitute most of the soils of different regions of the world specifically the dried and semi-dried regions. The herbal mantle of these soils is different in various regions and because of excessive saltiness sometimes only specific species can survive in this regions. One of the most important of arboreal species that existsin this regions are Tamarix trees. These trees are not compulsory halophytes but are classified in halophytes trees and can reduce the noxious effects of salinity by producing such matters of Prolines. In order to investigate the alternations of range of saltiness of the soil in the regions of inhabitances of Tamarix firstly four naturalinhabitances of Tamarix were recognized in Ilam Provence and then in each inhabitance for determining the range of saltiness of the soil five samples of the soilwerecoincidentally harvested from the depth of 0-30 centimeter. The average comparison of data showed thatrange of saltiness of the soil in different inhabitances is various between 0/92 to 9/03 decisimens in meters. Besides ¡the alternation of soil humidity in the inhabitances under discussion were most different and of meaningful statistical differentia because of existence or non-existence of seasonal or perpetual rivers. Moreover it showed that there was a negative correlation between the acidic soil and the height of shrubs.

Vegetation is decreasing as a result of various destructive factors in semi-arid areas. This study examined the effect of protective management on vegetation and soil characteristics. So¡ the managed and unmanaged forests were compared in Ilam city forests. In each of the two sites¡ four sampling points were randomly positioned.
Four main sample plots were established at a distance of 100 meters from the center. In each main plot¡ vegetation and three soil samples were taken (0 to 20 cm depth). Edaphic characteristics including total nitrogen¡ phosphorus¡ organic matter¡ organic carbon¡ pH¡ salinity¡ bulk density were measured. The results showed that management significantly increased the amount of available phosphorus¡ organic carbon¡ total nitrogen¡ organic matter and plant species number. The results showed that conservation management can be useful measures to improve the diversity of vegetation and soil nutrient status in Zagros forest ecosystems.

inter textual lity is an old approach in the analysis of texts that was developed in Europe since 20 th century It means the presence of a narrator in the reader . It is claimed that No text can be created alone in which it has other texts and sounds. This research studies the inter textual lity of Nima s’ symbols which are in fluenced by Koran s’ natural symbols. In Nima poem¡ there are more than 80 kinds of flowers¡ trees¡ plants and also important elements such as water¡ wind¡ cloud¡ sea and wave. These elements can be used as a motif of new creation in god s’ words with these symbols. Nima forests and grasslands¡ vegetation¡ wildlife indigenous to lead the field of poetry. Nymanasrmvmy were spoken before. Nima trees¡ flowers and native plants give dignity and comply with their Namyd. nyma Nvprdazanh one of the approaches of men who live in the mountain forests and pastures liked.The Method of analytic – laboratory research with the inter textual theory was studied by the writers for the first time . Its’ advantage. Is the development of a design: The in- text dis course of Koran language about the role of nature by the poetical words of Nima. The students of literature and agriculture are can benefit from this research for researching and studying the texts.