本专著分为3部分。第一部分探讨干旱对根系形态的影响，发现引种树木（如杨树、榆树、桦树）的根系呈现浅根化趋势，水平根系扩展显著（可达树冠直径的 2-3 倍），垂直根系深度受土壤结构限制，多数集中在 0-50 厘米土层。研究指出，根系的水平化分布是对浅层土壤水分的适应性策略，例如刺槐和沙枣的根系在干旱期通过横向延伸扩大吸水范围。第二部分研究根系生理特征与抗旱性的关联，表明抗旱树种（如锦鸡儿、沙棘）的根系细胞渗透压较高，木质部导管直径较小，可减少水分流失。实验数据显示，干旱胁迫下根系呼吸速率下降30%-50%，但可溶性糖和脯氨酸含量增加，增强细胞保水能力。此外，菌根共生显著提升根系对磷和水分的吸收效率。第三部分评估引种树种的应用潜力，提出基于根系特性的筛选标准：优先选择水平根系发达、根冠比高（如小叶杨、白榆）的物种，并建议通过苗期断根处理促进侧根发育。研究还指出，混合种植模式可优化根系空间分布，提高群落整体抗旱性，为干旱区植被重建提供理论依据。\n
", "ds_source": "作者（编委会）：И.О. Байтулин、А.А. Аметов\n出版社：哈萨克苏维埃社会主义共和国科学出版社\n出版地：阿拉木图\n出版年：1983年\n页数：90页\n语种：俄语\n分类号：UDC 635.976/977:581.43(574)\n
", "ds_process_way": "本书为中国科学院新疆生态与地理研究所文献信息中心（以下简称中心）馆藏文献，中心将本书电子化后存储，未经过OCR识别，数据加工过程依据国家标准《GB/T 31219.2-2014图书馆馆藏资源数字化加工规范》，完全遵照《干旱条件下哈萨克斯坦引种树木的根系系统》的数据信息，未改动删减。\n
", "ds_quality": "对收集到的《干旱区开发与荒漠化防治：综合措施》进行电子化加工处理，按照国家标准《GB/T 31219.2-2014图书馆馆藏资源数字化加工规范》要求，未改动删减《干旱条件下哈萨克斯坦引种树木的根系系统》的数据信息，数据质量可靠。\n
", "ds_acq_start_time": "2025-07-01 00:00:00", "ds_acq_end_time": "2025-07-31 00:00:00", "ds_acq_place": "哈萨克斯坦", "ds_acq_lon_east": null, "ds_acq_lat_south": null, "ds_acq_lon_west": null, "ds_acq_lat_north": null, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "apply-access", "ds_total_size": 6138028, "ds_files_count": 1, "ds_format": ".PDF格式", "ds_space_res": "无", "ds_time_res": "无", "ds_coordinate": "无", "ds_projection": "无", "ds_thumbnail": "8bff2cce-c2a1-432b-870a-119f70d96605.jpg", "ds_thumb_from": 0, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "", "ds_from_station": null, "organization_id": "a5877b42-96ea-4f13-af7e-246f355413d6", "doi_value": "10.12389/ariddc.00988", "subject_codes": [ "180.51" ], "quality_level": 1, "publish_time": "2025-07-25 13:26:36", "first_publish_time": null, "last_updated": "2025-07-25 13:26:36", "protected": false, "protected_to": null, "lang": "zh", "cstr": "33110.11.ariddc.00988", "license": null, "extra": null, "files_shape": [ { "name": "（XJLASRU70010897）.pdf", "size": 6138028, "is_dir": false } ], "features": null, "data_level": 0, "i18n": { "en": { "title": "Root system of introduced trees in Kazakhstan under drought conditions", "ds_abstract": "This monograph is divided into three parts. The first part explores the impact of drought on root morphology. It is found that the root systems of introduced trees (such as poplar, elm, and birch) show a trend of shallow rooting, the horizontal root system expands significantly (up to 2-3 times the crown diameter), and the vertical root system depth is limited by the soil structure, and most are concentrated in the 0-50 cm soil layer. Studies point out that the horizontal distribution of root systems is an adaptive strategy to shallow soil moisture. For example, the roots of Robinia pseudoacacia and Elaeagnus angustifolia expand their water absorption range through lateral extension during drought periods. The second part studied the relationship between root physiological characteristics and drought resistance, indicating that drought-resistant tree species (such as Caragana and Hippophae rhamnoides) have higher osmotic pressure in root cells and smaller xylem vessel diameters, which can reduce water loss. Experimental data showed that root respiration rate decreased by 30%-50% under drought stress, but soluble sugar and proline content increased, enhancing cell water-retaining ability. In addition, mycorrhizal symbiosis significantly improves the absorption efficiency of phosphorus and water by roots. The third part evaluates the application potential of introduced tree species and proposes screening criteria based on root characteristics: priority should be given to species with developed horizontal root systems and high root-to-crown ratios (such as Populus simonii, White Ulmus chinensis), and recommends promoting lateral root development through root cutting at seedling stage. The study also pointed out that the mixed planting model can optimize the spatial distribution of root systems, improve the overall drought resistance of the community, and provide a theoretical basis for vegetation reconstruction in arid areas.\n
", "ds_source": "Author (Editorial Board):.О.Байтулин、А.А.Аметов\nPress: Science Press of the Kazakh Soviet Socialist Republic\nPublished: Almaty\nPublication year: 1983\nPages: 90 pages\nLanguage: Russian\nClassification number: UDC 635.976/977:581.43(574)\n
", "ds_process_way": "This book is the collection of the Documentation and Information Center of the Xinjiang Institute of Ecology and Geography, China Academy of Sciences (hereinafter referred to as the Center). The center stores the book electronically without OCR recognition. The data processing process is in accordance with the national standard \"GB/T 31219.2-2014 Specifications for Digital Processing of Library Collection Resources\" and fully complies with the data information of \"Root System of Introduced Trees in Kazakhstan under Drought Conditions\" without modification or deletion.\n
", "ds_quality": "The collected \"Arid Area Development and Desertification Control: Comprehensive Measures\" were electronically processed. In accordance with the requirements of the national standard \"GB/T 31219.2-2014 Code for Digital Processing of Library Collection Resources,\" the data information of \"Root System of Introduced Trees in Kazakhstan under Drought Conditions\" was not changed and deleted, and the data quality was reliable.\n
", "ds_acq_place": "Kazakhstan", "ds_format": ".PDF format", "ds_projection": "no", "ds_space_res": "no", "ds_time_res": "no" } }, "license_type": null, "doi_reg_from": "reg_local", "cstr_reg_from": "reg_local", "doi_not_reg_reason": null, "cstr_not_reg_reason": null, "is_paper_in_submitting": false, "ds_topic_tags": [ "干旱条件", "引种树木根系" ], "ds_subject_tags": [ "植物学" ], "ds_class_tags": [], "ds_locus_tags": [ "哈萨克斯坦" ], "ds_time_tags": [ 1983 ], "ds_contributors": [ "文献信息中心" ], "ds_meta_authors": [ "文献信息中心" ], "ds_managers": [ "文献信息中心" ], "category": "图书" }