青海杂多县冬虫夏草的生态调查

Ecological Investigation of Cordycepes sinensis in Zaduo of Qinghai Province

对青海省杂多县冬虫夏草及其寄主的自然生境进行调查研究发现,该县虫草主要分布于海拔4 000～4700m的高寒草甸或高寒灌丛中。因海拔、植被、地形和水热条件的不同,虫草及其寄主具有明显的垂直地带性分布特征。在青藏高原长期的进化过程中,虫草寄主形成耐寒、耐涝、耐饥的生态习性。水、热、光是完成虫草有性世代的主要因子。

In this paper the natural environment of Cordycepes sinensis and its host insect in Zaduo of Qinghai was studied.The results showed that Cordycepes sinensis was mainly distributed in alpine-cold meadow and alpinecold bush with altitude 4 000 m to 4 700 m. It was characterized by a clearly upright-distributing due to the different altitude, vegetation, landform and atmospheric temperature, humidity. Its host formed the ecological habit of enduring cold, flood and hunger in Qinghai-Tibetan platean. Water, heat and daylight were the main genes that the sexual generation was completed.