滨岸缓冲带对农业面源污染NH_4^+-N,TP的吸收效果

Riparian buffer's cleaning effect on non-point source pollution from agriculture

在野外布点采样及分析的基础上,比较了滨岸缓冲带植被类型对NH4+-N、TP浓度变化的影响,以及不同深度样品中NH4+-N、TP的浓度变化。结果表明:(1)植被不同,缓冲带对NH4+-N、TP的去除效率不同;(2)不同深度采集的样品中,NH4+-N、TP的浓度变化有差异。

Riparian buffers zones are currently considered high effective in readuing of agricultural non- point source pollution. On the bases of field sampling and analysis, this study is conducted to compare the effect of riparian buffer vegetation type and monitoring wells depth on ammonium nitrogen and total phosphor concentration , The results show: (1) vegetation type has effect on ammonium nitrogen and total phosphor concentration variation (2) ammonium nitrogen and total phosphor removal from the groundwater are greater variable in the deep wells(1m) than the middle depth wells(0. 7m).