干旱荒漠区风电场对植被的影响

Effect of Wind Farms on Vegetation in Arid Desert Region

河西走廊干旱荒漠区风能资源丰富,发展风电产业得天独厚。为探究风电场对荒漠植被的影响,本文以民勤风电场为对象,通过野外植被调查和自动气象站开展研究。结果表明,供试风电场对植被覆盖状况、物种成分、物种结构无影响;对植被建群种合头草株冠生长、泡泡刺高生长具有促进效应,对红砂、绵刺、珍珠猪毛菜3个建群种的生长无影响或影响轻微;对灌木生物量积累具有局域性促进效应;03:00—06:00晨前时段对近地表空气具有增温效应。总之,干旱荒漠区风电场不影响植被覆盖状况、物种成分、物种结构,对植被建群种生长影响总体不大,可局域性促进灌木生物量积累。

The arid desert region of Hexi Corridor is rich in wind energy resources,so it unique to develop the wind power industry.Selecting the wind farms in Minqin as the object,the effect of wind farms on desert vegetation were investigated through field vegetation survey and automatic meteorological station.Wind farms had no effect on vegetation coverage,species composition and structure.It could promote the growth of crown and heigt of Sympegma regelii and Nitraria sphaerocarpa,respectively.There was no effect or slight effect on the growth of the three construction species.It had local promoting effect on shrub biomass accumulation.The pre-morning period from 03:00 to 06:00 has warming effect on near-surface air.In conclusion,wind farms in arid desert region did not affect vegetation coverage,species composition and structure,and had little effect on the growth of vegetation establishment species,but locally promoted shrub biomass accumulation.