关于覆盖对胶树生长和产量的影响,曾进行过大量的调查研究。本文打算总结一下过去的研究成果,并根据这些研究成果制订适当的胶园覆盖管理措施。一、覆盖的作用 (一)有利作用覆盖的主要有利作用如下: 1、保护表土层,从而能减少冲刷。2、增加土壤的有机质。3、改进和保持良好的土坊结构。4、改进土壤的水分渗透性,从而提 A large number of studies have been conducted on the effects of coverage on the growth and yield of gum trees. This article intends to summarize the past research results, and based on these research results to develop appropriate rubber plantation cover management measures. First, the role of coverage (A) The beneficial effects of coverage of the main advantages are as follows: 1, the protection of topsoil, which can reduce erosion. 2, increase soil organic matter. 3, to improve and maintain a good earthwork structure. 4, to improve soil moisture permeability, thus mentioning