那曲树木成活影响因素解析与对策研究

Affecting factors analysis and countermeasures research of Naqu trees

为探究西藏那曲树木的适生问题,在已建成生态沙漠大数据平台并实现高海拔地区生态信息全方位采集的基础上,对影响树木成活的相关环境因素进行分析。首先利用主成分分析法筛选影响那曲树木成活的主要环境因素,并以2014—2018年数据为例,对主要影响因子的变化特征进行分析,指出主要影响因子对树木生长的制约及促进作用。进一步针对影响那曲树木成活的主要限制因子,从合理选择种植时间、改善土壤结构、科学规划区域及优选适生植物等方面提出针对性的人工干预措施和解决方案,并结合实际试种结果验证人工干预措施和解决方案的有效性。研究结果可为那曲生态环境的科学治理提供支持与决策指导。

In order to explore the adaptability of trees in Naqu,Tibet,based on the establishment of"Ecological desert big data platform"in the early stage of the project and the realization of the comprehensive collection of ecological information in high altitude areas,the relevant environmental factors affecting the survival of trees were analyzed.Firstly,principal component analysis was used to screen the main environmental factors affecting the survival of Naqu trees.Taking 2014—2018 data as an example,the change of the main influencing factors were analyzed,and the constraints and promoting effects of the main influencing factors on tree growth were pointed out.Furthermore,aiming at the main limiting factors affecting the survival of Naqu trees,the paper puts forward targeted artificial intervention measures and solutions from the aspects of optimizing planting time,improving soil structure,scientific planning area,and optimizing suitable plants.This paper also verifies the effectiveness of the artificial intervention measures and solutions combined with the actual trial planting results.The research results can provide support and decision guidance for the scientific management of the Naqu ecological environment.