摘要
在黄河湿地郑州段选取裸地(对照)、草地、灌草、林地,研究了黄河湿地不同植被类型对风速、空气温度、空气湿度、地表温度和热压力指数的影响。结果表明:在9:00~17:00期间,林地的风速最低,且林地空气温度、地表温度、空气湿度和热压力指数的变化幅度最小,灌草和草地次之,裸地最高;在9:00时,林地的空气温度和地表温度最高,空气湿度最低;在13:00时不同植被的阻风率、空气降温强度和空气增湿强度均表现为林地>灌草>草地,地表降温强度表现为林地>草地>灌草;在13:00时林地、草地、灌草的热压力指数均显著低于裸地的,且以林地最低。说明黄河湿地中的林地在降温、增湿、降低风速、调节区域小气候方面具有明显的效果。
The effects of different vegetation types on the wind speed,air temperature,air humidity,surface temperature and heat stress index were investigated in the Yellow River wetlands in Zhengzhou. The results indicated that： from 9： 00 to 17： 00,the wind speed of woodland was the lowest,and the amplitudes of air temperature,surface temperature,air humidity and heat stress index of woodland were minimum,followed by those of shrub-herbaceous land and grassland,and those of bare land were the highest. At 9： 00,the air temperature and surface temperature of woodland were the highest and its air humidity was the lowest. At 13： 00,the wind resistance rate,air temperature depressed intensity and air moistening intensity of different vegetations all were ranked in the order of woodlandshrub-herbaceous landgrassland,while the surface temperature depressed intensity exhibited the following sequence： woodlandgrasslandshrub-herbaceous land. Furthermore,the heat stress index of bare land was significantly higher than that of woodland,shrub-herbaceous land and grassland,and that of woodland was the lowest at 13： 00. It was concluded that the woodland of the Yellow River wetland played an important role in depressing air temperature,elevating air humidity,reducing wind speed and regulating regional microclimate.
作者
方晓
桑凯新
黄超
范贝贝
杨果果
郭二辉
FANG Xiao;SANG Kai-xin;HUANG Chao;FAN Bei-bei;YANG Guo-guo;GUO Er-hui(College of Forestry,Henan Agricultural University,Zhengzhou 450002,China)
出处
《江西农业学报》
CAS
2018年第9期81-85,共5页
Acta Agriculturae Jiangxi
基金
国家自然科学基金项目(41401206
31570613)
河南省科技攻关项目(162102110163)
郑州市科技攻关项目(153PKJGG107)
关键词
黄河湿地
植被类型
小气候
调节效应
Yellow River wetland
Vegetation type
Microclimate
Regulatory effect
