effects of substitution of degraded natural forests with plantations on soil carbon sequestration and fertility in north of iran

نویسندگان

نیلوفر حق دوست

دانشجوی دکترای جنگلداری، دانشکدة منابع طبیعی و علوم دریایی، دانشگاه تربیت مدرس مسلم اکبری نیا

دانشیار گروه جنگلداری، دانشکدة منابع طبیعی و علوم دریایی، دانشگاه تربیت مدرس سید محسن حسینی

دانشیار گروه جنگلداری، دانشکدة منابع طبیعی و علوم دریایی، دانشگاه تربیت مدرس سعید ورامش

دکترای جنگلداری، دانشکدة منابع طبیعی و علوم دریایی، دانشگاه تربیت مدرس

چکیده

land-use change has strong effects on ecosystem properties, especially on soil carbon storage and it increased global atmospheric co2. degradation and loss of area and quality of hyrcanian forests are the biggest problems in these forests. one of the most important solutions to taking care of these problems is increasing plantations in these areas. therefore, investigation of the effects of different species plantations on soil carbon sequestration is very important. so this study investigates the effect of a. velutinum and a. subcordata plantations after 18 years, on soil carbon sequestration and fertility in a region that previously was a degraded natural forest stand. in chamestan region, two plantation stands and one natural stand were selected and 10 plots (25 m2) were established for soil sampling in each of them, then we took the combined soil samples in three depths (

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