Abstract

The insular pine forests of the Trans-Volga–Kazakh province of the Black Sea–Kazakh steppe region have high biodiversity and are relict in nature. The problems of their study and conservation are relevant in the context of increasing anthropogenic impact and climatic changes. A comprehensive analysis was performed for the floristic composition of communities of pine forests from the Burabai, Karkaraly, and Buzuluk national parks, the Naurzum Reserve, the Kanonersky forestry enterprise (south of the Priishimsky altitudinal zone pine forests), the pine forests of the Ilmensky Reserve and the Burlinsky altitudinal zone located in forest–steppe regions near the northern border of the province based on our own field materials and published data. For the first time, the data on the floristic diversity of all large pine forests in the province (the geographical aspect) are summarized in a unified manner. The similarity in the taxonomic, geographical, ecological, morphological, and coenotic structure of the floristic composition of all isolated insular pine forests indicate the presence of historical links and their relic character. The results of the correlation and cluster analysis of floristic lists showed a different degree of similarity between pine forests in different parts of the province in connection with the specific physical and geographical conditions. Three groups of pine forests have been identified: (a) pine forests of the sandy massifs of the Naurzum Reserve and the Kanonersky forestry enterprise, which have the most xerophilic appearance and are poor in composition, with a predominance of steppe species and turf grasses; (b) pine forests of granite massifs of the Kazakh Uplands (Burabay and Karkaraly national parks) with an average species richness; (c) the Buzuluk and Burlinsky pine forests, which occupy the most northern, borderline position in the province, with high floristic diversity and increased participation of forest species.

中文翻译：

---

伏尔加河—哈萨克斯坦草原省的岛上松林植物区系多样性

摘要

黑海－哈萨克草原地区的伏尔加河—哈萨克斯坦省的岛屿松树林具有很高的生物多样性，并且属于自然遗迹。在人类活动影响和气候变化日益加剧的背景下，他们的研究和保护问题尤为重要。对Burabai，Karkaraly和Buzuluk国家公园，Naurzum保护区，Kanonersky林业企业（Priishimsky海拔区域松林的南部），Ilmensky松林的松树群落的植物组成进行了综合分析。根据我们自己的现场资料和已发布的数据，保护区和Burlinsky海拔区位于该省北部边界附近的森林草原地区。首次，以统一的方式汇总了该省所有大型松树林的植物多样性数据（地理方面）。所有孤立的岛状松林植物区系组成的分类学，地理学，生态学，形态学和共生结构的相似性表明存在历史联系及其遗迹特征。植物种类清单的相关性和聚类分析结果表明，根据特定的自然和地理条件，该省不同地区的松树林之间的相似程度不同。确定了三类松树林：（a）瑙尔祖姆保护区和卡诺纳斯基林业企业的沙质地块的松树林，它们的干性外观最强，且组成较差，以草原种和草皮草为主；（b）哈萨克高地（布拉巴湾和卡尔卡拉里国家公园）的花岗岩地块的松树林，物种丰富度平均；（c）Buzuluk和Burlinsky松林，在该省最北部，最边缘的位置，具有较高的植物多样性和森林种类的参与度。