<正>比较了热水软化、乙酸、亚硫酸盐和木聚糖酶等不同预处理方法对麦秸中密度纤维板性能的影响；采用傅立叶红外光谱（FTIR）、电子自旋共振波谱（EsR）等分析在不同预处理过程中麦秸纤维表面官能团、纤维表面自由基的变化，并揭示其作用机理。结果表明：与热水软化预处理相比，其他3种预处理对麦秸纤维板的性能均有一定的改善，尤其是内结合强度改善明显。其中木聚糖酶预处理使纤维表面一0H的含量最高，平均长度最长，长宽比最大，所得纤维板的强度最高；亚硫酸盐预处理因磺化作用使得麦秸纤维表面自由基浓度最高；而乙酸的作用则是由于降低了pH和缓冲容量，有利于脲醛树脂的固化，使得结合强度提高。

Based on the meteorological data of 2004 in ecological long-term research station of Wuyi Mountain, the air temperature, relative humidity and rainfall were analyzed and compared between forest area and open area. The main results were indicated as follows : (1) Annual mean diurnal range of air temperature in forest area and open area were 8.4～C and 11.7～C respectively. The average relative variance coefficient of forest area and open area in different months were 0. 343 and 0. 335 respectively. (2) There was the same change tendency of the relative humidity in forest area and open area. The monthly mean values of air relative humidity in open area were higher than those in forest area, except December and July. However, the days with high humidity in forest area were more than that in open area. (3) The total precipitation during study period was 1 767.4 ram. It mainly is little rain. The precipitation of April, May and August accounted for 48.36% of the total precipitation. There was significant linear relationship between throughfall and total rainfall, i. e., T=0. 730 7P-0. 402 7 (R2=0. 988 2, n=20). The results could reflect the main character of climax community. It could be used as the theory basis for protection and reasonable management of evergreen broadlea’red forest.