求翻译：缓冲林带目前的研究主要集中在水体岸边缓冲林带，旨在通过控制侵蚀，减少径流中氮、磷浓度，防止流失泥沙、养分进入河道水体。是什么意思？

Forest buffer the current study focused on the water shore buffer belt, is designed to control erosion and reduce runoff of nitrogen, phosphorus concentration, to prevent loss of sediment and nutrients into the river water.

The current study focused mainly buffer belts streamside buffer belts in a body of water, erosion control, aimed at reducing run-off through the nitrogen, phosphorus concentrations, prevent erosion and sedimentation, nutrient access to river water wastage.

The cushion forest belt at present research mainly concentrates in the water body shore cushion forest belt, is for the purpose of corroding through the control, reduces in the runoff the nitrogen, the phosphorus density, prevented the outflow silt, the nutrient enter the river course water body.

Current research is mainly concentrated in the water on the shore of buffer forest belt buffering forest belt, is designed to control erosion, reduce the nitrogen and phosphorus concentrations in runoff, prevent loss of sediment and nutrients into the River.

Current research is mainly concentrated in the water on the shore of buffer forest belt buffering forest belt, is designed to control erosion, reduce the nitrogen and phosphorus concentrations in runoff, prevent loss of sediment and nutrients into the River.