Abstract: The biological effects of the community structure of onr artificial rubber forest were observed with the modern instruments and the traditional microcli-mate observations. The variation regularity of some ecological factors was preliminarily discussed. It was observed that the temperature of rubber trees and the sunlight intensity at the experimental locality were closely related. In Xishuan-banna, the rubber tree temperature of facing southwest part is higher than that of facing northeast part. The highest temperature difference between W and N parts of rubber trees was 1 ℃. The temperatures of the surface and shallow parts of the rubber trees were directIy and obviously influenced by the sunlight intensity. And the influence was gradually reduced to the deeper parts of the rubber trees. The core parts of the rubber trees were indirectly influenced by the sunlight intensity.。

Key words: observation, biological effects, community, structure, factors

摘要： 采用近代仪器与传统小气候观测相结合的方法：研究了人工胶林群落结构的生物学效应；对若干生态因于变化规律进行了初步讨论。胶树体温与测试地日照强弱密切相关．西双版纳树温西南高，东北低，西向与北向最高温之差约为l℃；树表和浅层受日照影响直接而明显，随深度增加而减弱，树心比较间接，既受环境影响又受本身机体调节。冬季胶林边行热效应较明显，比林内树温高2℃左右，若加充分利用对防寒有一定意义。树温和气温有差别，气温变幅大，树温变幅小，有利于植物正常生活，建议直接测定树温观察寒害．胶林中适当种植茶树，冷季有增暖效果，能对轻度寒害起缓冲作用．涂黑树干法不是理想防寒措施，因边行增温不明显 况且密林深处有轻微降温趋势，可能导致寒害加重。

关键词: 胶林群落, 结构, 效应, 观测, 生态因子, 规律