摘要
从福建建瓯、尤溪、南靖三区近 41年自然植被净第一性生产力 (NPP)的时空变化 ,讨论了全球气候变化对三区自然植被NPP的影响。结果表明 :三区近 41年NPP平均为 18t hm2 ·a- 1 ,呈略为上升的趋势 ;当年平均温升高 2℃且降水量增加 2 0 %或不变 ,各地的NPP呈升高趋势 ;当年平均温升高 2℃且降水量减少 2 0 %时 ,建瓯和南靖的NPP值有升高的趋势 。
In the paper,the temporal ahd spatial change of Net primary productivity( NPP )in three regions of Jianou,Uouxi and Nanjing in Fujian Province were estimated by NPP model of natural vegetation,based on the climatic data from 1960 to 2000.And the effects of global climatic change on NPP are discussed.The results showed that the NPP value was meanly 18t/hm 2·a 1 under the recent 41 years,and had a little rise tendency.When the annual mean temperature increased by 2℃ and the annual precipitation unchanged or increased by 20%, NPP may increased by 1.06%～ 1.10%.When the annual mean temperature increased by 2℃ ahd the annual precipitation decreased by 20%, NPP may increase in Nanjing and Jianou,while decrease in Youxi.
出处
《山地学报》
CSCD
2001年第6期522-526,共5页
Mountain Research
基金
福建省科委重大资助项目 (闽财指 [2 0 0 1] 338号 )。
