a functional and structural mongolian scots pine (pinus sylvestris var. mongolica) model integrating architecture, biomass and effects of precipitation功能和结构的蒙古欧洲赤松(抗旱性var.樟子松)模型集成架构,生物量和降水的影响.pdfVIP

A Functional and Structural Mongolian Scots Pine (Pinus sylvestris var. mongolica) Model Integrating Architecture, Biomass and Effects of Precipitation 1,3 ´ 2 3 4 1 5 1 Feng Wang , Veronique Letort , Qi Lu *, Xuefeng Bai , Yan Guo , Philippe de Reffye , Baoguo Li * 1 Key Laboratory of Plant-Soil Interactions, Ministry of Education, Department of Soil and Water Science, China Agricultural University, Beijing, China, 2 Ecole Centrale of Paris, Department of Applied Mathematics, Chatenay-Malabry, France, 3 Institute of Desertification, Chinese Academy of Forestry, Beijing, China, 4 Liaoning Sand Stabilisation and Afforestation Institute, Fuxin, China, 5 CIRAD, UMR AMAP, Montpellier, France Abstract Mongolian Scots pine (Pinus sylvestris var. mongolica) is one of the principal tree species in the network of Three-North Shelterbelt for windbreak and sand stabilisation in China. The functions of shelterbelts are highly correlated with the architecture and eco-physiological processes of individual tree. Thus, model-assisted analysis of canopy architecture and function dynamic in Mongolian Scots pine is of value for better understanding its role and behaviour within shelterbelt ecosystems in these arid and semiarid regions. We present here a single-tree functional and structural model, derived from the GreenLab model, which is adapted for young Mongolian Scots pines by incorporation of plant biomass production, allocation, allometric rules and soil water dynamics. The model is calibrated and validated based on experimental measurements taken on Mongolian Scots pines in 2007 and 2006 under local meteorological conditions. Measurements include plant