浙江省珍稀濒危植物细果秤锤树的种群数量监测报告

为了解浙江省特产珍稀植物细果秤锤树Sinojackia microcarpa的种群数量变化情况,对其个体数量进行监测并报道。通过对浙江省临安市和建德市分布地实地直接计数法调查表明,该种目前资源总量为235株,其中临安市12株,建德市223株,比2000年调查数据减少了817株。导致种群个体下降原因有4个：①树种本身可能存在生殖缺陷;②人为破坏;③2次调查方法不同造成的差异;④植被变化。提出了对细果秤锤树进行保护、研究及开发利用的建议,同时还对该种形态特征的原始记录作了补充和订正。

Population quantity surveillance of the rare and endangered plant in Zhejiang Province: Sinojackia microcarpa

In order to know about the special local product plant-Sinojackia microcarpa＇s population quantity change in Zhejiang, their individual quantity changes were monitored and reported. The results of the direct counting survey showed that there were 235 such plants, 12 in Lin＇an City and 223 in Jian＇de City. The total number of such plants was 817 fewer than in 2000. Based on the analysis of the reason for decreasing population, this article proposed to carry out protection, research and the development of it. Meanwhile, the original records on its morphological features were revised and amended. Ch, 3 ref. ]