摘要
防风效益是防护林最基本最重要的生态效益。该研究通过分析徐淮平原的典型区域宿迁泗洪县陈圩林场近1 a内的风速实时监测数据,比较研究该农田林网新造林的防风效果。结果表明:新造林具有一定的防风效果。在背风面的1 H(树高)—20 H内,随着距林带距离的增加,林带防风效能逐渐提高,新造林的迎风面1 H和背风面1H的风速频数百分比差异不大,建议在今后的林业工作中,应对该林带的风速进行长期实时监测,为农田林网的建设工作提供有效的数据基础和科学依据。
Wind reduction is a most fundamental and important ecological benefit. By analysis of real-time monitoring data of wind speed of the typical area of Xuhuai Plain,i. e. Chenwei Forest Farm in Sihong County within a year,a comparative study of windproof efficiency in new farmland afforestation was made. The results showed that new afforestation had certain an anti-wind effect. The protection efficiency of poplar forest was considerable high. In the 1 H—20 H of the leeward side,with the increase of the distance from the forestbelt,the wind reduction efficiency of the newly made forests was gradually improved. Percentages of wind speed,frequency between 1 H of both windward and leeward sides were not very different. It was suggested that in future forestry work,the meteorological indicators should be monitored in real time,and then a scientific basis for the construction of farmland shelterbelt could be provided.
出处
《江苏林业科技》
2017年第6期32-35,共4页
Journal of Jiangsu Forestry Science & Technology
基金
江苏省林业三新工程项目"江苏杨树农田林网更新改造技术集成示范与推广"(LYSX[2015]04)
江苏省省属公益类科研院所能力提升项目"江苏杨树农田林网更新改造及效益监测评价技术"子课题"农田林网效益监测及评价技术研究"(BM2015021-3)
江苏省农业科技自主创新资金项目"消减PM2.5的农田林网树种筛选与配置模式研究"(CX(17)3055)
关键词
农田林网
防风效果
风速
频数分布
徐淮平原
Farmland shelterbelt
Protection benefit
Wild speed
Frequency distribution
Xuhuai Plain
