亚热带红壤丘陵茶区茶-杉复合系统生态经济效应探析

定位试验研究结果表明,亚热带红壤丘陵区茶-杉复合茶园比单一茶园光照强度降低31.1%~50.1%,且园内气温、地表与土壤温度、茶树叶面温度及其高温危害产生的频率等均低于单一茶园,园内湿度和土壤含水量分别高于单一茶园,茶树主要害虫天敌种群数量比单一茶园多118.75%,而其害虫数量仅为单一茶园的45.4%,且茶叶产量提高,其品质亦明显改善。

Ecological and economic effects of tea-Chinese fir complex plantation in hilly red soil of subtropical region

The comparison of ecological effects of pure tea plantation and tea-Chinese fir complex plantation in hilly red soil of subtropical region of China had been made. Chinese fir was planted around and between the tea plantation, showing that the intensity of illumination in complex plantation decreases by 31.1% -50.1% than that in pure tea plantation; the air temperature, soil temperature, leaves temperature and the frequency of high temperature are also lowered, however, the humidity and moisture content increased. In addition, the number of pests in complex plantation decreases by 54.6 % than that in pure tea plantation, and the number of natural enemies of pests increases by 118.75 %. The tea yield is increased and its quality is improved in the tea-Chinese fir complex plantation.