overexposure

noun [具体名词]过度接触，（皮肤）遭日晒过度；（底片）曝光过度；（人或事物在媒体上）曝光率过高

Do these trees have other means at their disposal to prevent overexposure to light in autumn? ^{有没有其他方法来防止这些树在秋天过度暴露在阳光下？}