摘要
通过对杭州湾滨海生态绿地小气候效应的实地调查和定位观测,结果表明:生态绿地植物生长季节可提高空气湿度,空气相对湿度(平均为85.25%)明显高于无林荒地(平均为80.32%);滨海生态绿地的冠层截留效应明显,林冠层全年截留降水量为226.2 mm,占全年降水量的16.92%;滨海绿地全年月平均大气压的变化呈S形,树木在生长季节内有降低大气压的作用,树木停止生长后林木有增加大气压的作用;滨海生态绿地具有降低风速的作用,绿地内可降低风速约75.94%,防风能力较强,降低风速的效率为67.42%;滨海绿地对改变风向也有较大的作用。
The micro-climate effects of Hangzhou Bay coastal ecological greenland were researched. The results indicated that ecological greenland has a role in regulating the temperature and humidity. Compared to non-forest land, the forests in the summer can adjust to reduce the temperature, and play an opposite role in the winter. The ecological greenland can increase the air humidity during the growing season of plants and have a significantly higher air relative humidity （average 85.25%） than non-forest land （an average of 80.32%）. The retention effect of canopy is significant in ecological greenland, which can trap precipitation of 226.2 mm throughout the year, accounting for 16.92% of the annual precipitation. The Annual monthly average atmospheric pressure changes with S-shaped trend. The trees can lower atmospheric pressure in the growing season and increase atmospheric pressure when stop growing. The ecological greenland can lower 75.94% of the wind speed with the reduce efficiency of about 67.42%. It also plays a role in change the wind direction. Overall, the micro-climate effects of Hangzhou Bay coastal ecological greenland are significant.
出处
《华东森林经理》
2012年第1期34-38,共5页
East China Forest Management
关键词
滨海绿地
温度
湿度
降雨
大气压
风速
风向
Ecological Greenland
Temperature
Humidity
Precipitation
Wind
