再论热带森林昆虫的某些特点与防治

<正>海南省尖峰岭热带林自然保护区昆虫的垂直分布明显,昆虫区系属东洋界,其中许多种类是热带区域或热带山地雨林的特有种,这些昆虫具有区系稳定、种类多而种群数量少、鳞翅目丰富、广腰亚目贫乏等特色;受季风和生物同步现象的影响,森林昆虫每年都有二个发生高峰。热带森林害虫的防治,应在生态学原理的指导下,保护好现有的原始林,对已破坏了的原始林地区,需用封山育林、营造混交林等林业措施来改善森林结构,建立起新的生态平衡,从而对害虫达到自然控制的目的。

ANOTHER REPORT ON THE CHARACTERISTICS OF INSECTS IN TROPICAL FOREST AND THEIR CONTROL

Hainan Island is a major tropical region in China. At Jianfengling of the island, the natural reserve area of tropical forest is well protected, several forest vegetation types exist and the species of living beings arc abundant. The vertical dispersion of insects in the area is obvious. The insect fauna belongs to the oriental area and many insects are unique species in tropical area or in tropical mountain rain forest. These insects have the characteristis as follows. The fauna is stable; species are of great number, Zhe number of populations is few and there are abundant Lepidoprera but few Symphyta. Influenced by the phenomena of monsoon and biological synchronism, the forest insects have two crest of occurrence every year. The control of tropical forest insects must be undertaken under the principles of ecology. The present virgin forest should be well protected; In the areas where virgin forest is destroyed, the hills, must be set apart for tree glowing and mixing forest should be planted, and so forth in order to improve the forest structure and establish a new ecological balance. So that the pests will be naturally cotrolled.