Introduction
E 中
Ginkgo biloba L. is a famous living fossil tree species native to China. Phylogenetic analysis showed that the stem group age of Ginkgoaceae is approximately 325 million years. Although ginkgo plants were widely distributed around the world, the great upheavals of the earth and the following ice age during the Tertiary and the Quaternary destroyed Ginkgoales plants in most of the world, with only one species surviving in China. Since its ornamental, edible and medicinal value, and high tolerance to biological and abiotic stresses, ginkgo is widely cultivated around the world now.
Supported by the Chinese University iPlant Association (CUiPA), the nationwide monitoring of campus ginkgo trees began in 2019. This program aims to promote interaction among the members of CUiPA, encourage college students to pay attention to the phenological changes, participate in nature observation, and carry forward the spirit of citizen science. Through the monitoring of ginkgo trees on campuses across China, we try to reveal the response mechanism and spatial pattern of Ginkgo biloba to the natural environment.
By 2022, more than 30 universities across China have participated in the activity, and more than 2,000 campus ginkgo trees have been included in the monitoring network.
简介
E 中
银杏（Ginkgo biloba L.）是原产中国的著名活化石树种。系统发育分析表明，银杏科植物的起源可追溯至3亿年前。银杏曾广泛分布于世界各地，然而在经历了第四纪冰川运动后，银杏类植物大家族中只有银杏这一物种在我国孑遗至今。银杏具有较高的观赏、食用、药用价值，对不同环境下生物和非生物胁迫的耐受性较高，因此被广泛种植于全球各地。
全国高校校园银杏监测活动开始于2019年，是一项由浙江大学发起，依托于“萃葩”中国大学植物网联盟（Chinese University iPlant Association，CUiPA）的公众科学活动。作为一种优良的园林绿化树种，银杏在其适宜分布区内的许多高校都有种植，而高校独特的文化环境也为大规模银杏观察活动提供了基础。该活动旨在进一步促进中国大学植物网联盟成员高校之间的联动，鼓励联盟成员关心自然界的物候变化，参与自然观察，发扬公众科学精神。通过全国各地校园银杏树的挂牌、监测、物候观察，揭示银杏这一古老长寿物种对自然环境的响应机制和空间格局。
目前，全国已有逾30所高校参与活动，超过2,000株校园银杏树纳入监测网络。南起广州（26°N），北至长春（44°N），东起泉州（118°E），西到大理（100°E），基本覆盖了银杏在我国的适宜分布区。