consequence of land use change from forest to vineyard on soil organic c fractions

نویسندگان

حمید محمودزاده

کارشناس ارشد دانشکده کشاورزی دانشگاه بوعلی سینای همدان محسن شکل آبادی

استادیار دانشکده کشاورزی دانشگاه بوعلی سینای همدان علی اکبر محبوبی

استاد گروه مهندسی خاک شناسی دانشکده کشاورزی دانشگاه بوعلی سینای همدان

چکیده

the aim of this study was to assess the conversion of forest to vineyard on different physical pools of organic matter in zrebar lake watershed. soil samples were collected from the two major land use types including forest and vineyard land at 0-30; 30-60, and 60-90-cm depths. in each land use, different soc fractions were measured. according to the results of size fractionation of organic carbon in 0-30-cm layer, the highest and lowest amount of sand sized fraction organic carbon was obtained in forest and vineyard land use; respectively. the amount of sand sized fraction soc was decreased with depth. in the forest land the content of light fraction in each depths was more relative to vineyard. the light and sand sized fractions in surface layers were showed high response to management changes. organic carbon storage in the surface layer has been more than other depths. it is proposed to apply special management in surface layers of soils to mitigate the loss of different soc fractions.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Impact of land use change on soil erodibility

Vulnerability of soil separates to detachment by water is described as soil erodibility by Universal Soil Loss Equation which can be affected by land use change. In this study it was attempted to quantify the changes of Universal Soil Loss Equation K-factor and its soil driving factors in three land uses including rangeland, rainfed farming, and orchards in Babolrood watershed, northern Iran. S...

متن کامل

The Effect of Land use and Soil Erosion on Soil Organic Carbon and Nitrogen Stock

  Soil organic carbon (SOC) is a principal component in soil quality assessment. Knowledge of SOC and total nitrogen (TN) stocks are important keys to understand the role of SOC in the global carbon cycle and, as a result, in the mitigation of global greenhouse effects. SOC and TN stocks are functions of the SOC concentration and the bulk density of the soil that are prone to changes, influe...

متن کامل

the effects of soil disturbance due to land use change of forest lands to cultivated lands on biological soil quality indices of forest ecosystems of northern iran

land use change of forest ecosystems in northern iran changes the soil quality of paresar (gilan province) and gorgan (gorgan province) regions. in order to study changes in some biological soil quality indices due to land use change from forest to cultivated lands, composite soil samples from two depths (0-20 and 20-40 cm) were taken from paresar and gorgan regions and urease, alkaline and aci...

متن کامل

Investigation of Land Use Change on Physicochemical Characteristics and Soil Erosion in Kaftargar Basin of Behshahr

The land-use change, cutting forest trees and the grasslands conversion to agricultural lands destroyed natural ecosystems and also current or future production capacity reduce and these are harmful effects on the soil physicochemical characteristics. This study taken with aim, checking the role of forest-land change on some soil physical-chemical characteristics and then identify some effectiv...

متن کامل

Effects of land-use change on chemical composition of soil organic matter in tropical lowland Bolivia

Land-use change affects not only the amount of soil organic matter (SOM) but also its composition. We performed cross-polarization magic angle spinning (CPMAS) C and N nuclear magnetic resonance (NMR) spectroscopy to investigate the chemical composition of bulk SOM in topsoils (0–15 cm) under different land use, namely native forest (NF), 27-year cropland with wheat/soybean rotation (CL) and 27...

متن کامل

Changes in labile soil organic matter fractions following land use change from monocropping to poplar-based agroforestry systems in a semiarid region of Northeast China.

Labile fractions of soil organic matter (SOM) respond rapidly to land management practices and can be used as a sensitive indicator of changes in SOM. However, there is little information about the effect of agroforestry practices on labile SOM fractions in semiarid regions of China. In order to test the effects of land use change from monocropping to agroforestry systems on labile SOM fraction...

متن کامل

منابع من

با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید


عنوان ژورنال:
تحقیقات آب و خاک ایران

جلد ۴۵، شماره ۲، صفحات ۱۷۹-۱۸۸

کلمات کلیدی
[ ' t h e a i m o f t h i s s t u d y w a s t o a s s e s s t h e c o n v e r s i o n o f f o r e s t t o v i n e y a r d o n d i f f e r e n t p h y s i c a l p o o l s o f o r g a n i c m a t t e r i n z r e b a r l a k e w a t e r s h e d . s o i l s a m p l e s w e r e c o l l e c t e d f r o m t h e t w o m a j o r l a n d u s e t y p e s i n c l u d i n g f o r e s t a n d v i n e y a r d l a n d a t 0 ' , ' 3 0 ; 3 0 ' , 6 0 , ' a n d 6 0 ' , 9 0 , ' c m d e p t h s . i n e a c h l a n d u s e ' , ' d i f f e r e n t s o c f r a c t i o n s w e r e m e a s u r e d . a c c o r d i n g t o t h e r e s u l t s o f s i z e f r a c t i o n a t i o n o f o r g a n i c c a r b o n i n 0 ' , 3 0 , ' c m l a y e r ' , ' t h e h i g h e s t a n d l o w e s t a m o u n t o f s a n d s i z e d f r a c t i o n o r g a n i c c a r b o n w a s o b t a i n e d i n f o r e s t a n d v i n e y a r d l a n d u s e ; r e s p e c t i v e l y . t h e a m o u n t o f s a n d s i z e d f r a c t i o n s o c w a s d e c r e a s e d w i t h d e p t h . i n t h e f o r e s t l a n d t h e c o n t e n t o f l i g h t f r a c t i o n i n e a c h d e p t h s w a s m o r e r e l a t i v e t o v i n e y a r d . t h e l i g h t a n d s a n d s i z e d f r a c t i o n s i n s u r f a c e l a y e r s w e r e s h o w e d h i g h r e s p o n s e t o m a n a g e m e n t c h a n g e s . o r g a n i c c a r b o n s t o r a g e i n t h e s u r f a c e l a y e r h a s b e e n m o r e t h a n o t h e r d e p t h s . i t i s p r o p o s e d t o a p p l y s p e c i a l m a n a g e m e n t i n s u r f a c e l a y e r s o f s o i l s t o m i t i g a t e t h e l o s s o f d i f f e r e n t s o c f r a c t i o n s . ' ]

میزبانی شده توسط پلتفرم ابری doprax.com

copyright © 2015-2023