Pesticide degradation and export losses at the catchment scale: Insights from compound-specific isotope analysis (CSIA)

نویسندگان
چکیده

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

Understanding the Causes of Spatial Variation in Pesticide Sorption and Degradation at the Catchment Scale

Intensive agricultural practices and use of pesticides, essential to achieve high crop yields, present particular risks to soil and water resources which sustain life. Degradation and sorption of pesticides in soils are both spatially variable and also among the most sensitive factors determining losses to surface water and groundwater. Currently, no general guidance is available on suitable ap...

متن کامل

Compound-specific isotope analysis

The isotopic composition, e.g. 14C/12C, 13C/12C, 2H/1H, 15N/14N and 18O/16O, of matter elements is heterogeneous. It is ruled by physical, chemical and biological mechanisms. Isotopes thus be enable to follow the fate of mineral and organic compounds during biogeochemical transformations. The determination of the isotopic composition of organic substances occurring at trace level into very comp...

متن کامل

Precipitation patterns control the distribution and export of large wood at the catchment scale

Jung Il Seo, Futoshi Nakamura,* Kun Woo Chun, Suk Woo Kim and Gordon E. Grant 1 Department of Forest Resources, College of Industrial Sciences, Kongju National University, 54 Daehakro, Yesan, Chungcheongnamdo, 340-702, Republic of Korea 2 Department of Forest Science, Graduate School of Agriculture, Hokkaido University, Kita 9 Nishi 9, Kita-ku, Sapporo, Hokkaido 060-8589, Japan 3 Department of ...

متن کامل

Enantiomeric separation and compound specific stable isotope analysis

11 A fast and simple method for authenticating raspberry flavors from food products was developed. The two enantiomers 12 of the compound (E)-α-ionone from raspberry flavor were separated on a chiral gas chromatographic column. Based on 13 the ratio of these two enantiomers the naturalness of a raspberry flavor can be evaluated due to the fact that a natural 14 flavor will consist almost exclus...

متن کامل

Stochastic modeling of diffuse pesticide losses from a small agricultural catchment.

The objective of this study was to identify the main sources of variation in pesticide losses at field and catchment scales using the dual permeability model MACRO. Stochastic simulations of the leaching of the herbicide MCPA (4-chloro-2-methylphenoxyacetic acid) were compared with seven years of measured concentrations in a stream draining a small agricultural catchment and one year of measure...

متن کامل

ذخیره در منابع من


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

ژورنال

عنوان ژورنال: Water Research

سال: 2018

ISSN: 0043-1354

DOI: 10.1016/j.watres.2018.03.061