检索结果-南通市图书馆

Assessment of deforestation impact on soil erosion in loess formation using 137Cs method (case study: golestan province, Iran)

引用

International Soil and Water Conservation Research 2020年第4期8卷 393-405页

作者： Mohammadreza Gharibreza Mohammad Zaman Paolo Porto Emil Fulajtar Lotfollah Parsaei Hossein Eisaei Department of River and Coastal Engineering Soil Conservation and Watershed Management Research InstituteAgricultural ResearchEducation and Extension Organization(AREEO)Tehran***TehranIran Department of Soil and Water Management&Crop Nutrition Joint FAO/IAEA Division of Nuclear Techniques in Food&AgricultureViennaA-1400Austria Department of Agriculture Mediterranean UniversityLocalitàFeo di VitoReggio Calabria86124Italy Department of Watershed Management Golestan Agricultural and Natural Resources Research and Education CenterAREEOGorgan491567755Iran

golestan,a province in the North-East of Iran,is characterized by high coverage of loess *** 1963,the area has experienced approximately 200,000 ha deforestation due to land-use changes in agriculture and increasing demand for ***,110,000 ha of the clear-cut lands are under dry-farming,mainly for wheat cropping,and about 86,000 ha have been *** IAEA funded project is the first attempt to use nuclear techniques in the East of Hircanian Forest for determination of on-site impacts of deforestation due to two land-use changes(*** farming and reforestation).Practicing long-term dry-farming led to 60%soil losses with a mean rate of 2 mm per *** net erosion rate of croplands on loess deposits in the study area was 32.27 t ha-1 ***,cultivation of even-aged Cypress trees since 1993,showed 13 to 60 percent effectiveness in soil ***-farming land use resulted in the loss of 95 t ha-1 soil organic carbon(SOC)stock at a mean rate of 1.7 t ha-1 over 54 *** Cypress trees successfully restored the SOC content by 100%compared with the SOC in original *** conversion of dry-farming lands to orchards of olive trees since 2004,brought more income for farmers but were less effective in soil conservation because of low canopy cover of olive *** data provide key information and guidance for land users and decisionmakers about implementing strategic and sustainable conservation practices to restore degraded land.

关键词： Hircanian forests golestan province Nuclear technique Soil erosion Deforestation Afforestation Dry-farming land

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

The Impact of Exited Pollutants of Cement Plant on the Soil and Leaves of Trees Species: A Case Study in golestan province

引用

Open Journal of Ecology 2016年第7期6卷 404-411页

作者： Mahdi Farzadkia Mitra Gholami Ehsan Abouee Zahra Asadgol Shahram Sadeghi Hossein Arfaeinia Maryam Noradini Department of Environmental Health Engineering School of Public Health Iran University of Medical Sciences Tehran Iran Student Research Committee Kurdistan University of Medical Sciences Sanandaj Iran Department of Environmental Health Engineering Faculty of Public Health North Khorasan University of Medical Sciences Bojnurd Iran

Background & Aims: Cement industry is very contaminated. Contaminants resulting from industries include dust, carbon compounds, sulfur and nitrogen. The purpose of this study was to evaluate the output of pollutants from cement plants in soil samples and leaf tree species. Methods: This study descriptive-analytic was designed tree species, plants and soil around the plant. Samples from four different stations within 500 meters of factory and 21 packages (each package contains three examples of the sample) were sent for laboratory tasks. Information of sampling stations in the soil, the plants and factories of qualitative and quantitative tests on samples of soil pollutants output of factories, plant species and trees daily and using written lists were collected. After the sampling, the samples were measured using standard methods and analyzed using statistical software. Results: Distribution of the total amount of metals in oak and black plants and reed Talo is normal and can be used for parametric tests. Also, there is no significant relationship statistically among the total amount of metals in plants such as oak trees, reed and Siah Talo. Conclusions: According to the findings of this study, we can conclude that dust subsides the leaves of three species of oak and black Talo and reed which contain considerable concentrations of metals such as silver, barium, bismuth, cesium, chromium, cobalt, cadmium and arsenic.

关键词： Cement Pollutants Tree Species golestan province

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

A Survey on Poultry Helminth Infection in golestan province （North of Iran）

引用

Journal of Agricultural Science and Technology(A) 2011年第6期1卷 921-924页

作者： M. Mamashly Sh. Ranjbar-Bahadori A. Safdari R. Agha-Ebrahimi-Samani Department of Parasitology lslamic Azad University Garmsar Branch Garmsar Semnan *** Iran Department of Parasitology University of Tehran Tehran *** Iran

Poultry breeding in a traditional and open environment will carry a great potential of causing parasitic infections in poultry At the present study, 110 domestic poultry were gathered randomly from wet areas （Gorgan, Minoodasht, Azadshahr, Ali Abad Katool, Kalaleh, Galikesh） and dry areas （Gonbad Kavoos, Agh Ghala） of golestan province in 1388s. After dissecting, their bronchial tube and digestive system were examined for presenting of parasitic helminthes. Consequently, the rate of parasitic infection in domestic poultry was 92.73% which comprised： Heterakis gallinarum （18.18%）, Subulura brumpti （7.27%）, Acuaria spiralis （15.45%）, Capillaria sp （1.81%）, Ascaridia galli （48.18%）, Syngamus trachea （15.45%）, Syngamus trachea sp （2.73%）, Choanotaenia infundibulum （11.81%）, Raillietina tetragona （53.63%）, Raillietina cesticyllus （14.45%）, Raillietina echinobothrida （25.45%） Drepanidotaenia lanceolata （1.81%）. It is also necessary to cite that there is no relevance between helminth infection and age （P = 0.178）, species （P = 0.278） and geographical zone （P = 0.504）. Therefore, in order to reduce the parasitic infection, performing a directorial system beside the efforts for reducing its potentiality is extremely necessary.

关键词： Parasitic infection domestic poultry golestan province helminth Iran.

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Effect of wood chip application on root growth of oak seedling and weed control in northern Iran

引用

Journal of Forestry Research 2013年第3期24卷 607-610页

作者： Armin Mashayekhan Seyed Mohammad Hojjati Sari Agricultural Sciences and Natural Resources University Sari-P.O.B: 737 Iran

It was hypothesized that wood chips can serve as a mulch to improve the growth of young trees by facilitating the development of their root systems, inhibiting weed germination, and suppressing weed growth. The present study was carried out in Ghorogh Nursery, golestan Northern Iran, in order to investigate the impact of wood chips applica- tion on root growth of oak （Quercus castaneifolia） seedlings and control of weed. A three centimeter wood chip layer was used on the soil surface as the mulch treatment with bare soil as the control. The number of new roots, the length of exciting roots and the density of weeds were meas- ured after 5 and 12 weeks. Results showed that wood chip application had significant positive effect on the length of excising roots after 5 and 12 weeks compared with control seedlings. Also, weeds were reduced to near zero levels in treated plot. Our findings suggested that wood chip layer on the soil surface in the nursery can conserve soil moisture and prevent nutrient leaching from the rooting zone as well as diminish weed growth which consequently lead to production of high quality seedling.

关键词： Mulch root growth Quercus castaneifolia weed control Ghorogh Nursery golestan province Iran

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：