中南林业科技大学学报2025，Vol.45Issue(7)：1-12,12.DOI:10.14067/j.cnki.1673-923x.2025.07.001
我国苦竹的保护优先区与适宜栽培区分析
Priority conservation area and potential suitable cultivation area of Pleioblastus amarus in China
摘要
Abstract
[Objective]Expanding the scale of artificial cultivation of plant resources helps prevent their natural resources from being overexploited.Pleioblastus amarus,commonly known as bitter bamboo,has significant socioeconomic,medicinal,and ecological value,indicating substantial potential for resource development.However,the status of its resources is unclear,with most known resources being artificially cultivated.Natural resources are scarce and have been affected by overexploitation.To achieve a balance between the development and conservation of bitter bamboo resources,this study aims to establish the potential areas for artificial cultivation and prioritize the protection of natural bitter bamboo resources in China.[Method]By widely collecting the occurrence records of bitter bamboo and considering the multicollinearity of environmental data and spatial autocorrelation in occurrence records,the MaxEnt model was used to simulate and predict the suitable habitats of bitter bamboo in China.This approach sought to delineate suitable cultivation zones and map the distribution of its natural resources.Moreover,future(2061-2080)habitat suitability changes were analyzed under both low and high greenhouse gas(GHG)emissions scenarios.Finally,the current and future conservation status of bitter bamboo was evaluated by integrating protected area data and the zonation priority conservation ranking system.[Result]The coldest month temperature and annual precipitation were identified as the primary climatic factors influencing the geographic distribution of bitter bamboo,while soil clay content and pH were the key soil factors.Under current climate conditions,the potential area for suitable cultivation of bitter bamboo reaches 1.68×107 km2.Under the low GHG emissions scenarios,the suitable cultivation area reaches 1.99×107 km2.While under the high GHG emissions scenarios,it reaches 2.04×107 km2.The proportion of the area of the current suitable habitats located within the nature protected areas is 4.26%,and it can increase to about 5.00%under future climate scenarios.However,the analysis of conservation priority areas indicates that,regardless of the current or future conditions,the majority(＞86%)of the highest priority habitats for bitter bamboo conservation are located outside existing protected areas.There is little difference in the area of suitable cultivation range and the protection gap of habitat priority protection area between different climate scenarios.[Conclusion]Bitter bamboo in China exhibits extensive potential suitable habitats,primarily distributed across provinces along the Yangtze River basin.However,its critically important priority habitats remain inadequately protected.Under future climate change,its suitable cultivation area is projected to expand significantly,while the area of effectively protected high-priority habitats may experience a modest increase.Overall,future climate change is favorable for the expansion of cultivation areas and the protection of natural resources for bitter bamboo.To promote the balance between resource utilization and protection and realize the sustainable management of bamboo resources,this study emphasized that the artificial bamboo forest should focus on resource exploitation and utilization,and the natural bamboo forest should focus on conservation and protection.关键词
苦竹/保护优先区/适生区/种质资源/限制性因素/最大熵模型Key words
bitter bamboo/priority conservation area/suitable cultivation area/germplasm resources/limiting factors/MaxEnt model分类
农业科技引用本文复制引用
张雷,孙鹏森,刘世荣..我国苦竹的保护优先区与适宜栽培区分析[J].中南林业科技大学学报,2025,45(7):1-12,12.基金项目
中央公益性科研院所基本科研业务费专项(CAFYBB2020QA001) （CAFYBB2020QA001）
国家"十四五"重点研发计划项目(2022YFF1303005). （2022YFF1303005）
