Wang Shaoli, Song Shengju, Yang Xuping, Xiong Zhengqi, Luo Chaoxing, Wei Donglu, Wang Hong, Liu Lili, Yang Xinxin, Li Shaofeng, Xia Yongxiu
State Key Laboratory of Tree Genetics and Breeding, Experimental Center of Forestry in North China, National Permanent Scientific Research Base for Warm Temperate Zone Forestry of Jiulong Mountain in Beijing, Chinese Academy of Forestry, Beijing 100091, China.
R&D Center, China Academy of Launch Vehicle Technology, Beijing 100076, China.
Polymers (Basel). 2023 Oct 14;15(20):4083. doi: 10.3390/polym15204083.
In the process of landscaping or afforestation in challenging terrain, in order to improve the survival rate of transplanted seedlings, it is necessary to transplant seedlings with a mother soil ball attached. During transportation, the soil ball at the root of the seedlings is very susceptible to breakage due to compression, bumps, and collisions. In order to ensure the integrity of the soil ball of the transplanted seedlings and improve the survival rate of seedlings, a method of chemically enhancing the soil surface strength was employed. Specifically, a polymer-based soil consolidating agent was used to solidify the root balls of the seedlings. To examine the abrasion resistance performance of the soil balls formed by consolidating the surface with polymer adhesive during the transportation process, we utilized a polymer-based consolidating agent to prepare test soil columns and developed a method to simulate the damage resistance performance of seedling root balls during transportation using these soil columns. The method primarily encompasses two aspects of testing: compressive strength testing of the consolidated soil columns and resistance to transportation vibration testing. The first method for testing the resistance to transportation vibration of the consolidated soil columns is a combination test that includes three sets of tests: highway truck transportation vibration testing, combined wheel vehicle transportation vibration testing, and impact testing. Although the method is cumbersome, testing is more accurate. The second method for testing the resistance to transportation vibration of the consolidated soil columns involves simultaneously testing multiple consolidated soil columns using a simulated transportation vibration test platform. The testing method is concise and efficient, and the test results are more intuitive. The combined assessment of the resistance to transportation vibration and compressive strength testing of the consolidated soil columns allows for a comprehensive evaluation of the soil columns' resistance to damage during transportation. This study mainly provides a quick and effective method for detecting the damage resistance of consolidated soil columns/balls during transportation, providing technical support for the application of polymer-based consolidation agents in the field of seedling transplantation.
在具有挑战性地形的景观美化或造林过程中，为提高移植幼苗的成活率，有必要带母土球移植幼苗。运输过程中，幼苗根部的土球极易因挤压、颠簸和碰撞而破碎。为确保移植幼苗土球的完整性并提高幼苗成活率，采用了一种化学增强土壤表面强度的方法。具体而言，使用一种基于聚合物的土壤固化剂来固化幼苗的根球。为检验在运输过程中用聚合物粘合剂固化表面形成的土球的耐磨性能，我们利用基于聚合物的固化剂制备测试土柱，并开发了一种使用这些土柱模拟幼苗根球在运输过程中的抗损伤性能的方法。该方法主要包括两个测试方面：固化土柱的抗压强度测试和运输振动抗性测试。测试固化土柱运输振动抗性的第一种方法是组合测试，包括三组测试：公路卡车运输振动测试、组合轮式车辆运输振动测试和冲击测试。虽然该方法繁琐，但测试更准确。测试固化土柱运输振动抗性的第二种方法是使用模拟运输振动测试平台同时测试多个固化土柱。该测试方法简洁高效，测试结果更直观。对固化土柱的运输振动抗性和抗压强度测试进行综合评估，可以全面评价土柱在运输过程中的抗损伤能力。本研究主要提供了一种快速有效的方法来检测固化土柱/球在运输过程中的抗损伤能力，为基于聚合物的固化剂在幼苗移植领域的应用提供技术支持。
