According to the classification system of life\|form provided by Raunkiaer,the life\|forms of 290 vascular plants of 10 Quercus mongolica communities in north\|east China were analyzed.The results showed that the hemi...According to the classification system of life\|form provided by Raunkiaer,the life\|forms of 290 vascular plants of 10 Quercus mongolica communities in north\|east China were analyzed.The results showed that the hemicryptophytes were the dominant life\|forms,accounted for 32.4% of all the forest vascular plants,followed by geocryptophytes,accounted for 23.1%,mesophanerophytes and nanophanerophytes were about 14.6% and 13.9% separately.Altitude and latitude could affect the ratio of geocryptophytes.With the increasing of altitude and latitude,the ratio of geocryptophytes had a trend to develop.The regression analysis among geocryptophytes,hemicryptophytes,altitude and latitude were done.The water content in soil could affect the ratio of therophytes.The ratio of mesophanerophytes,nanophanerophytes,hemicryptophytes and chamaephytes didn’t change significantly with the increasing of altitude and latitude.展开更多
植物生长型和生活型是理解植物响应和适应环境变化的重要形态性状,对研究植物与环境和生态系统功能的关系,理解植物地理分布格局和生物多样性形成与维持机制具有重要意义。《中国植物志》和Flora of China中有关植物生长型和生活型的描...植物生长型和生活型是理解植物响应和适应环境变化的重要形态性状,对研究植物与环境和生态系统功能的关系,理解植物地理分布格局和生物多样性形成与维持机制具有重要意义。《中国植物志》和Flora of China中有关植物生长型和生活型的描述存在分类标准不统一,部分信息缺失、错误或模糊不清等问题。本文基于全国和地方植物志书及野外调查的植物性状信息,订正了中英文版维管植物的生长型和生活型性状,建立了中国维管植物生长型和生活型数据集。该数据集包含35,329种维管植物,内容包括植物名称、生长型和生活型性状及其数据来源,其中植物名称包括来自《中国植物志》、Flora of China和来自《中国生物物种名录(2023版)》的两个分类系统版本,以便读者相互对照不同分类系统的差异。依据茎木质化程度分为木本植物和草本植物两类,木本植物有12,600种,占35.7%;草本植物为22,729种,占64.3%。木本植物以中灌木生长型(2,917种,占23.2%)和常绿生活型(7,107种,占56.4%)为主,草本植物以杂类草生长型(19,900种,占87.6%)和多年生生活型(19,554种,占86.0%)为主。木本生长型中乔木物种以樟科和壳斗科占比较大,灌木物种以杜鹃花科、蔷薇科和豆科占比较大;常绿生活型以杜鹃花科占比较大,落叶生活型以蔷薇科占比较大。草本生长型中杂类草以菊科占比较大,禾草以禾本科占比较大;生活型中一年生、二年生和多年生分别以禾本科、紫草科和菊科占优势。本数据集涵盖了目前中国所有维管植物物种的生长型和生活型信息,可为植物性状研究提供数据基础。展开更多
文摘According to the classification system of life\|form provided by Raunkiaer,the life\|forms of 290 vascular plants of 10 Quercus mongolica communities in north\|east China were analyzed.The results showed that the hemicryptophytes were the dominant life\|forms,accounted for 32.4% of all the forest vascular plants,followed by geocryptophytes,accounted for 23.1%,mesophanerophytes and nanophanerophytes were about 14.6% and 13.9% separately.Altitude and latitude could affect the ratio of geocryptophytes.With the increasing of altitude and latitude,the ratio of geocryptophytes had a trend to develop.The regression analysis among geocryptophytes,hemicryptophytes,altitude and latitude were done.The water content in soil could affect the ratio of therophytes.The ratio of mesophanerophytes,nanophanerophytes,hemicryptophytes and chamaephytes didn’t change significantly with the increasing of altitude and latitude.
文摘植物生长型和生活型是理解植物响应和适应环境变化的重要形态性状,对研究植物与环境和生态系统功能的关系,理解植物地理分布格局和生物多样性形成与维持机制具有重要意义。《中国植物志》和Flora of China中有关植物生长型和生活型的描述存在分类标准不统一,部分信息缺失、错误或模糊不清等问题。本文基于全国和地方植物志书及野外调查的植物性状信息,订正了中英文版维管植物的生长型和生活型性状,建立了中国维管植物生长型和生活型数据集。该数据集包含35,329种维管植物,内容包括植物名称、生长型和生活型性状及其数据来源,其中植物名称包括来自《中国植物志》、Flora of China和来自《中国生物物种名录(2023版)》的两个分类系统版本,以便读者相互对照不同分类系统的差异。依据茎木质化程度分为木本植物和草本植物两类,木本植物有12,600种,占35.7%;草本植物为22,729种,占64.3%。木本植物以中灌木生长型(2,917种,占23.2%)和常绿生活型(7,107种,占56.4%)为主,草本植物以杂类草生长型(19,900种,占87.6%)和多年生生活型(19,554种,占86.0%)为主。木本生长型中乔木物种以樟科和壳斗科占比较大,灌木物种以杜鹃花科、蔷薇科和豆科占比较大;常绿生活型以杜鹃花科占比较大,落叶生活型以蔷薇科占比较大。草本生长型中杂类草以菊科占比较大,禾草以禾本科占比较大;生活型中一年生、二年生和多年生分别以禾本科、紫草科和菊科占优势。本数据集涵盖了目前中国所有维管植物物种的生长型和生活型信息,可为植物性状研究提供数据基础。