نتایج جستجو برای: soil analysis program

تعداد نتایج: 3319226  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علوم کشاورزی و منابع طبیعی گرگان - دانشکده جنگلداری و مهندسی چوب و کاغذ 1391

درک الگوی توزیع مکانی ماکروفون خاک بدلیل اثرات آن روی فرآیندهای اکوسیستم بسیار مهم است. لیکن اطلاعات کمی در این خصوص وجود دارد. درمورد تنوع زیستی ارگانیسم ها وجانداران خاکزی که ازاجزای مهم وکلیدی درهرسیستم اکولوژیکی هستند و در بهبود حاصلخیزی خاک و تولیدات زمین وپایداری اکوسیستم ها(ازطریق فرآیندهای بیولوژیک)نقش عمده دارند تحقیقات کمی انجام شده است. این تحقیق جهت بررسی الگوی مکانی پارامترهای تنوع...

Journal: :CoRR 2012
Amani Tahat Ali Khwaldeh Mohammad Tahat

This user manual has been written to describe the open source code WM to be distributed associated with a research article submitted to the information technology journal 45001ITJ-ANSI, entitled: “Maintenance and Reengineering of software: Creating a Visual C++ Graphical User Interface to Perform Specific Tasks Related to Soil Structure Interaction in Poroelastic Soil “. This manual describes h...

Journal: :ACM Transactions on Programming Languages and Systems 2018

Journal: :مدیریت خاک و تولید پایدار 0
مرضیه بصیری دانشجوی سابق کارشناسی ارشد دانشگاه ولی عصر (عج) رفسنجان عیسی اسفندیارپور بروجنی عضو هیأت علمی دانشگاه ولی عصر (عج) رفسنجان سمیرا اخوان عضو هیأت علمی دانشگاه بوعلی سینا همدان محسن حمیدپور عضو هیأت علمی دانشگاه ولی عصر (عج) رفسنجان اردوان کمالی عضو هیأت علمی دانشگاه ولی عصر (عج) رفسنجان

soil erosion models are useful tools to predict runoff, sediment and soil erosion in watersheds. although, the swat model is used for evaluating runoff discharge and the long-term effects of management operation on water, sediment and agricultural chemical yields in the large watersheds, in this research, its efficiency was investigated in monthly runoff simulation for tuyserkan watershed (with...

Journal: :Environmental Monitoring and Assessment 2007

2012
Manel Mosbahi

The risk of water erosion is one of the main environmental concerns in the southern Mediterranean regions. Thus, quantification of soil loss is an important issue for soil and water conservation managers. The objective of this paper is to examine the applicability of the Soil and Water Assessment Tool (SWAT) model in The Sarrath river catchment, North of Tunisia, and to identify the most vulner...

2012
D. S. Karam A. Arifin O. Radziah J. Shamshuddin N. M. Majid A. H. Hazandy I. Zahari A. H. Nor Halizah T. X. Rui

Deforestation leads to the deterioration of soil fertility which occurs rapidly under tropical climates. Forest rehabilitation is one of the approaches to restore soil fertility and increase the productivity of degraded areas. The objective of this study was to evaluate and compare soil biological properties under enrichment planting and secondary forests at Tapah Hill Forest Reserve, Perak aft...

2001
C. D. Barton G. Chalfant

Soil solution chemistry provides insight into element cycling, nutrient uptake and availability, mineral transformation, and pollution transport processes within the subsurface environment. Therefore, chemical analysis of the extractable soil water fraction has been utilized in several studies to assess the condition of ecological resources and to identify stresses, and levels thereof, which ma...

2017
Gang Sun Kim Chul-Hee Lim Jin Kim Jongyeol Lee Yowhan Son

Afforestation of forests in South Korea may provide an example of the benefit of afforestation on precipitation storage and erosion control. In this study, we presented the effects of afforestation on water supply and soil loss prevention. A spatio-temporal simulation of forest water yield and soil loss was performed from 1971–2010 using InVEST water yield and SWAT models. A forest stock change...

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