胶园间作桑树主要生态因子特征分析

Studies on Environmental Ecological Factors of Rubber-Mulberry Intercropping System

在海南幼龄胶园(3a)和中龄胶园(5a)中间作海南特有桑种—唐鬼桑,研究了该模式下橡胶园的主要生态因子特征。结果表明:(1)间作唐鬼桑能促进中幼龄胶园的胶树生长;(2)可降低胶园的空气温度,提高系统内的空气相对湿度,增加胶园土壤含水量;(3)能改善土壤性状,增加土壤有效磷的含量。可见“,橡胶—桑树”的合理间作能创造良好的生态效应,改善胶园生态系统小环境。

The main ecological factors were studied in the young （3a） and middle-aged （5a） rubber plantations intercropped mulberry --Marus migriformis Koidz （MMK）.. It indicated that： （1） The growth of rubber trees were increased in this intercropping pattern; （2） It was effective to decrease temperature of the rubber plantation in summer, increase the atmospherical moisture content and water content in soil; （3） It was also effective to improve the soil condition and increase its usable phosphor content. Therefore, ＂Rubber tree- Mulberry＂ intercropping system can create favorable ecological effects, and improve the micro-environment of rubber ecological system.