摘要
一、前言植物气候生产力系指在一定气候条件下,每年在单位面积土地上可能生产的有机干物质,它相当于植物的净生产量(NEP),即植物通过光合作用形成的粗生产量(GPP)减去呼吸作用消耗量(Ra)和枯枝落叶量(Rn)后的生物量。
In this paper,Thornthwaite memorical and Chikugo model are applied to calculate the climaticproductivity of vegetations in the Loess Plateau region.The absolute values of climaticproduction per year are 4.5—15.0 t·ha^(-1) and 0—9.0 t·ha^(-1) respectively,showing a progressivedecrease from southeast to northwest.According to investigations,the results by Chikugomodel are basically in kceping with the situation of natural landscape.
出处
《生态学杂志》
CAS
CSCD
北大核心
1990年第4期45-48,共4页
Chinese Journal of Ecology
关键词
植被
气候生产力
黄土高原
vegetation
climatic productivity
the Loess Plateau region
