The Short-Term Effect of Fire on Vegetation Structure and Soil Physico-chemical Properties in Non-wooded Rangelands of Dorood Faraman Abstract
seyed mojtaba
talai tabar
دانشگاه علوم کشاورزی و منابع طبیعی ساری
author
محمد رضا
طاطیان
دانشگاه علوم کشاورزی و منابع طبیعی ساری
author
رضا
تمرتاش
دانشگاه علوم کشاورزی و منابع طبیعی ساری
author
محمدرضا
طاطیان
عضو هیأت علمی دانشگاه علوم کشاورزی و منابع طبیعی ساری
author
text
article
2017
per
This research was done for determination of the short term effect of fire on vegetation and soil in Dorood Faraman rangelands of Kermanshah Province. The fire was at the beginning of 2012. Two units included control and burned (30 hectare) treatments were selected after one year. Two transect (100m) were recorded toward and inverse the slope. Vegetation and soil sampling was done by systematic-randomly method. The soil sampling was done in 0-15cm soil depth. The 1m2 plot was used for plant sampling. Vegetation characteristics as species name, vegetation percentage, production, palatability, diversity and soil properties including moisture, texture, electrical conductivity, acidity, organic carbon, lime, N, P, and K were obtained. The statistical analysis of variance and mean comparison was performed using T-test in Spss20 software. The relation between vegetation data and soil factors was done by CCA in CANOCO4. The grasses and forbs had showed an increasing and shrubs had decreased in burned area. As palatability factors, classes I species had showed increasing and classes III were decreased (p
مجله مرتعداری
دانشگاه علوم کشاورزی و منابع طبیعی گرگان
3
v.
1
no.
2017
1
18
https://jrm.gau.ac.ir/article_3359_718e2c3ecd8663152188282dd047d2dd.pdf
dx.doi.org/10.22069/jrm.2017.7813.1159
Studying the effect of grazing on soil physicochemical properties in a summer rangeland (case study: Zagheh Rangeland, Lorestan Province)
داود
اخضری
عضو هیئت علمی دانشگاه ملایر
author
لیلا
سوری
دانشجوی کارشناسی ارشد مرتعداری
author
شهرام
امیدواری
استاد پژوهشی، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی استان لرستان، سازمان تحقیقات آموزش و ترویج کشاورزی، خرم آباد
author
text
article
2016
per
Heavy exploitation is a major cause of degradation and destruction of rangelands. Rangeland overgrazing by livestock destroyed vegetation and cause bare soil which exposed to erosion. To studying the effect of grazing on physicochemical properties of soil, a study was conducted at Zagheh research station located in Lorestan province. For this purpose, in both grazed and protected area, 10 soil samples was done based on randomized systematic method from 0 to 30 cm soil depth which transferred to the laboratory. In laboratory soil properties such as soil texture, bulk density, total nitrogen, the C / N, P, K, lime, acidity (pH), electrical conductivity (EC), were measured. Data analysis was performed in SPSS software. The statistical results showed that soil texture and soil pH was not significantly affected by grazing. However the bulk density, organic carbon, total nitrogen, the C/N ratio, P, K, lime and electrical conductivity (EC) significantly affected by grazing.
مجله مرتعداری
دانشگاه علوم کشاورزی و منابع طبیعی گرگان
3
v.
1
no.
2016
19
32
https://jrm.gau.ac.ir/article_3360_73ab9fc2122d8b4d4c583bffc062ab6f.pdf
dx.doi.org/10.22069/jrm.2017.11754.1227
Defining the most important effective factors on species diversity of medicinal plants in the mountainous Olang rangeland, Golestan province
الهه
گروسی
دانشگاه گنبد کاووس
author
مجید
محمداسمعیلی
دانشگاه گنبد کاووس
author
بهاره
بهمنش
عضو هیئت علمی دانشگاه گنبد
author
غلامرضا
عجم نوروزی
اداره مرتع و آبخیزداری شهرستان آزادشهر
author
text
article
2016
per
The present research is done in order to investigating the relation between species diversity of medicinal plants and environmental and management factors in the Olang rural rangeland located in Golestan province. Data sampling was implemented in two managing parts consisting of low and heavy grazing areas using 100 of 1m2 plots with randomized-systematic method. In each plot, density and canopy cover of plant species were recorded. For analyzing the physical and chemical characteristics of soil, sampling was done in the center of some plots. After recognizing the medicinal plants, Shannon and Simpson indexes were used to calculate species diversity of these plants. Results showed that the most of medicinal plants, species were belonged to Compositae (21%), Fabaceae (17%) and Cruiferae (10%) families. Management factor had no significant effect on the species diversity of medicinal plants in this area, while the results from regression experiment of medicinal plants and environmental factors, indicated that bare soil, total nitrogen and gravel in the area with low grazing and also bare soil, slope and total cover in the over grazing area had the most effect on the species diversity on medicinal plants. The common environmental factor between the two management area affecting on Shannon index was litter and on the Simpson index was slope.
مجله مرتعداری
دانشگاه علوم کشاورزی و منابع طبیعی گرگان
3
v.
1
no.
2016
33
50
https://jrm.gau.ac.ir/article_3361_fba45cbf7a536dde35be27834f17794c.pdf
dx.doi.org/10.22069/jrm.2017.9649.1203
Defining main environmental gradient in rangeland habitats using β diversity
(Case study: Chaharbagh rangelands of Golestan Province)
فاطمه
قلیش لی
دانشگاه علوم کشاورزی و منابع طبیعی گرگان
author
عادل
سپهری
دانشگاه علوم کشاورزی و منابع طبیعی گرگان
author
موسی
اکبرلو
دانشگاه علوم کشاورزی و منابع طبیعی گرگان
author
سیده زهره
میردیلمی
دانشگاه علوم کشاورزی و منابع طبیعی گرگان
author
text
article
2016
per
Defining main environmental gradient in rangeland habitats using β diversity (Case study: Chaharbagh rangelands of Golestan Province) Abstract Biodiversity is an important concept in ecology and vegetation management. Beta diversity is one of biodiversity levels. The aim of the study was to identify environmental gradient using beta diversity. The vegetation sampling was done using 536 randomly selected plots. Environmental unit maps were prepared by overlaying of basic maps (slope, aspect and elevation). The Gamma, Alfa and beta diversity in environmental units were calculated with Shannon index. The beta diversity variations showed that height variation is between "Ju. Ex, As. Go" and "Po bu, Co. ne" environment units (1.83). This gradient is main gradient called "Juniperus-Grass" gradient. of study area. According to the results, beta diversity index has good performance in showing variations between plant communities. Beta diversity can accurately be used to interpret diversity, similarity and dissimilarity between communities and rank main gradients.Key words: Beta Diversity, Gradient, Plant composition, Environmental units, Variations
مجله مرتعداری
دانشگاه علوم کشاورزی و منابع طبیعی گرگان
3
v.
1
no.
2016
51
62
https://jrm.gau.ac.ir/article_3362_4338adbaeccc12b3211a83932d42aaa6.pdf
dx.doi.org/10.22069/jrm.2017.9366.1196
The effect of Yazd wastewater on forage quantity and quality of Medicago sativa and Atriplex lentiformis
مهدیه
ابراهیمی
دانشگاه یزد
author
Ali Akbar
Karimian
دانشگاه یزد
author
ناصر
باغستانی
هیئت علمی مرکز تحقیقات
author
حمید رضا
عظیم زاده
دانشگاه یزد
author
آناهیتا
رشتیان
دانشگاه یزد
author
text
article
2017
per
Municipal wastewater is a major source of water in arid regions. The study on the production of forage crops using wastewater is very important. In this study examines the effects of municipal wastewater Yazd on forage quantity and quality of Medicago sativa (alfalfa) and Atriplex lentiformis. This experiment include a completely randomized design with 3 irrigation treatments (100% drinking water, 50% drinking water + 50% wastewater, 100% wastewater) and two separate species in 10 replicates over a period of 4 month. The results showed that 100% wastewater treatment increased leaf fresh and dry weight to stem ratio of alfalfa and for Atriplex lentiformis increased leaf fresh weight to stem ratio(p
مجله مرتعداری
دانشگاه علوم کشاورزی و منابع طبیعی گرگان
3
v.
1
no.
2017
63
79
https://jrm.gau.ac.ir/article_3363_86ea62b262ee6b86640d2dbbc20f29c7.pdf
dx.doi.org/10.22069/jrm.2017.11269.1222
Determination of Nutritional value of Fat-hen processed with lime at different times using in situ technique.
Hamideh
Heidari
دانشگاه بیرجند
author
Moslem
Bashtani
دانشگاه بیرجند
author
محمدرضا
اصغری
دانشگاه بیرجند
author
حسین
نعیمی پور یونسی
دانشگاه بیرجند
author
text
article
2017
per
This experiment was conducted by nylon bags method to determine the chemical composition and degradation characteristics of pasture plants Fat-hen.The sample was taken at three stages of plant growth(vegetative, flowering and seeding)in Gonabad during1392.The harvested Samples was ground after drying in the open air. Part of the Fat-hen plant samples was collected from flowering stage, Processed wit 4 percent lime for2, 4 and 8 day periods and its chemical composition was investigated. Two Fistulated cows were used to determine the amount of dry matter, protein and Neutral detergent insoluble Fiber plant and the rate of degradation of Samples was measured at the time periods of0,2,4, 8,16,24,48,72and96hours.The results showed Significant differences in the amount of content of the plant at different growth Stages(P
مجله مرتعداری
دانشگاه علوم کشاورزی و منابع طبیعی گرگان
3
v.
1
no.
2017
81
97
https://jrm.gau.ac.ir/article_3364_7fd63bbd269b8f425f7821485c9ce27b.pdf
dx.doi.org/10.22069/jrm.2017.11272.1223
Analysis of social capital affecting participation in rangeland restoration projects
(Kurdistan province, Qorveh city)
Farzad
Ahmadi
no
author
ronak
Ahmadi
no
author
text
article
2016
per
Nowadays participation will fail without the support of social capital. The weakness of social capital in rural communities due to lack of participation in social activities. The aim of this study was to evaluate the role of social capital and its components in the desire to participate in rangelands rehabilitation and restoration projects in the city is Qorveh. The purpose of this research, applied research method, path analysis - correlation. The population of 600 ranchers and farmers were Qorveh city. The sample in this study, 234 patients were selected according to Morgan table. Data were collected by questionnaire. To ensure the validity of the experts and Cronbach's alpha coefficient was used to calculate reliability and value higher than 0.7, respectively. To examine the relationship between participation and indicators of a sense of belonging, social participation, security and social capital of the Pearson correlation coefficient (according to its normal distribution) and to examine the relationship between participation tend to trust people, trust institutional and social cohesion of the Spearman correlation coefficient was used. The results showed that social capital is able to account for 62% of the total variance of the willingness of farmers to participate in rangelands rehabilitation and restoration plans were. Also, results from the effects of path analysis showed that the variables of social participation, institutional trust, interpersonal trust, sense of belonging and social cohesion; the highest impact on participation of farmers and farmers in their rangelands rehabilitation and restoration projects.
مجله مرتعداری
دانشگاه علوم کشاورزی و منابع طبیعی گرگان
3
v.
1
no.
2016
99
113
https://jrm.gau.ac.ir/article_3365_df7ebc895a65f34548ba91a12effb765.pdf
dx.doi.org/10.22069/jrm.2017.10277.1214