SHEN Xiaojuan,DU Sheng.Health Assessment of Five Typical Plantation Forests in Gansu Province[J].Research of Soil and Water Conservation,2023,30(03):295-300.[doi:10.13869/j.cnki.rswc.2023.03.020]
甘肃省5种典型人工林健康状况
- Title:
- Health Assessment of Five Typical Plantation Forests in Gansu Province
- 文章编号:
- 1005-3409(2023)03-0295-06
- 分类号:
- S718.557
- 文献标志码:
- A
- 摘要:
- [目的]研究典型人工林健康状况,可为甘肃地区制定人工林科学经营措施、提高森林资源质量、实现森林可持续发展提供理论依据。[方法]以甘肃省5种典型人工林(刺槐林、杨树林、落叶松林、云杉林和油松林)为研究对象,在对区域内68个典型样地进行野外调查的基础上,从森林群落结构、生产力和恢复力等方面选取了18项指标,运用主成分分析和聚类分析法,构建了适用于该区域人工林的健康评价指标体系和健康评价模型,计算了森林健康指数,综合评价了该地区5种典型人工林的健康状况。[结果](1)甘肃地区典型人工林60.3%处于亚健康状态,22.1%处于不健康状态,10.3%处于中健康状态,7.3%处于健康状态;(2)不同人工林中,落叶松林的健康水平相对较高,杨树林健康水平最低,森林健康指数依次为落叶松林(0.417)>云杉林(0.126)>刺槐林(0.106)>油松林(0.000)>杨树林(-0.665);(3)人工林不同龄组中,成熟林的健康水平相对较高,幼龄林健康水平相对较低,平均森林健康指数依次为成熟林(0.580)>近熟林(-0.062)>中龄林(-0.073)>幼龄林(-0.354)。[结论]对甘肃地区人工林仍需加强森林抚育,合理制定该地区人工林可持续经营管理措施,以实现人工林生态系统可持续发展。
- Abstract:
- [Objective]Studying health assessment of typical plantation forests can provide a theoretical basis for formulating scientific management measures for plantation forests, improving the quality of forest resources and achieving sustainable development of plantation forests in Gansu. [Methods] Based on the field investigation of 68 typical sample plots in Gansu, this study took five main types of plantation forests(Robinia pseudoacacia, Populus spp, Larix principis-rupprechtii Mayr, Picea asperata Mast and Pinus tabuliformis)of Gansu as the research samples, and selected 18 indicators such as forest community structure, productivity and resilience, etc. Principal component analysis and cluster analysis were used to build the plantation forest health evaluation index system and forest health evaluation model, and the forest health index was used to reflect the forest healthy level. [Results](1)60.3% of the plantation forests in Gansu were in sub-health state, 22.1% were in unhealthy state, 10.3% were in medium-health state, and 7.3% were in healthy state.(2)For different plantation forests, the forest health index of L. principis-rupprechtii Mary was significantly higher, while the P. spp was relatively the lowest, and the the ranking of forest health index was the L. principis-rupprechtii Mary(0.417)>P. asperata Mast(0.126)>R. pseudoacacia(0.106)>P. tabuliformis(0.000)>P. spp( -0.665).(3)For different forest age groups, the forest health indices of mature forests were significantly higher than those of other age groups, while young forests had lower health levels, and the ranking of forest health index was the mature forests(0.580)>near mature forests(-0.062)>middle-aged forests(-0.073)>young forests( -0.354). [Conclusion] The plantation forests in Gansu still need to strengthen forest tending and management, the scientific sustainable management measures should be formulated for the plantation forests in the region, to achieve sustainable development of plantation forest ecosystems in Gansu Province.
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备注/Memo
收稿日期:2022-04-18 修回日期:2022-05-06
资助项目:中国科学院野外站联盟课题(KFJ-SW-YW034-03); 中国科学院战略性先导科技专项课题(XDA05050202)
第一作者:申小娟(1997—),女,河南焦作人,硕士研究生,主要从事植被恢复与森林生态系统过程研究。E-mail:xiaojuan_shen@foxmail.com
通信作者:杜盛(1965—),男,内蒙古鄂尔多斯人,博士,研究员,主要从事植被恢复与森林生态系统过程研究。E-mail:shengdu@ms.iswc.ac.cn