文献类型：期刊文献

中文题名：植被缓冲带在水源地面源污染治理中的作用

英文题名：Roles of Vegetation Buffer Zones on Non-point Source Pollution Control in Water Source Areas

作者：王荣嘉[1] 张建锋[1]

第一作者：王荣嘉

机构：[1]中国林业科学研究院亚热带林业研究所,浙江杭州311400

年份：2022

卷号：53

期号：4

起止页码：981-988

中文期刊名：土壤通报

外文期刊名：Chinese Journal of Soil Science

收录：CSTPCD;;北大核心:【北大核心2020】；CSCD:【CSCD2021_2022】；

基金：中央级公益性科研院所基本科研业务费专项基金项目(CAFYBB2019SY014)资助。

语种：中文

中文关键词：植被缓冲带;水源地;面源污染;水环境

外文关键词：Vegetation buffer zone;Water source area;Non-point source pollution;Water environment

分类号：S157

摘要：在山地丘陵区遭遇高强度降雨时,常常发生水土流失;水流携带泥沙下泄,过量施入农田的肥料、农药等化学物质随之进入河流、水库、湖泊等地表水和地下水水体,进而造成水体富营养化等面源污染,危害水源地安全。为梳理植被缓冲带能够控制水土流失、阻控污染物移动、解决水源地面源污染问题,明确该项技术措施减少和治理水源地面源污染的机制,为水源地面源污染防治和水环境改善提供参考。在概括介绍植被缓冲带的类型、功能的基础上,对该项技术措施减少和治理水源地面源污染的机制进行讨论。植被缓冲带治理水源地面源污染的机制主要有:(1)植物在生长过程中自身对氮磷等物质的吸收;(2)利用植被固结土壤,减少水土流失;(3)植被覆盖、拦蓄能够延长径流在地面的停留时间而增加水分入渗、减少氮磷等物质随地表径流流失;(4)植物根系参与土壤中多种物理、化学和生物过程,加速碳、氮、磷等物质的形态转化。针对水源地面源污染特点和植被缓冲带的建设技术及其应用要点,提出相关建议,并对今后该技术的发展进行了展望。
Under heavy rainfall conditions, over-input fertilizers and chemicals with surface runoff through the catchment area flow into surface water and groundwater such as rivers and reservoirs, causing water eutrophication.Controlling soil and water erosion through ecological measures is an important way to deal with non-point source pollution in these areas. The ecological functions of vegetation buffer zones and the mechanism to reduce non-point source pollution were discussed in water source areas, which will provide scientific basis and technical support for nonpoint source pollution prevention and water environment improvement. The published papers related to vegetation buffer zones and non-point source pollution were collected and discussed. The mechanisms included:(1) the absorption of nitrogen and phosphorus by plants;(2) vegetation to consolidate soil and reduce soil erosion;(3) vegetation coverage prolonged the residence time of runoff on the ground, increased water infiltration, and reduced the loss of nitrogen, phosphorus and other substances with surface runoff;(4) plant roots participated in various physical,chemical and biological processes in the soil, accelerated the morphological transformation of carbon, nitrogen,phosphorus and other substances. Some suggestions have been pointed out according to the characteristics of water source non-point source pollution.