文献类型：期刊文献

中文题名：林场尺度森林生态系统服务供给能力评价

英文题名：Assessment of forest ecosystem service supply capacity at the forest farm scale

作者：郭慧[1] 吴莎[1] 吴迪[1] 裴顺祥[1]

第一作者：郭慧

机构：[1]中国林业科学研究院华北林业实验中心,北京九龙山暖温带森林国家长期科研基地,京津冀平原农田防护林生态系统定位观测研究站,北京102300

年份：2025

卷号：45

期号：20

起止页码：9997-10007

中文期刊名：生态学报

外文期刊名：Acta Ecologica Sinica

收录：;北大核心:【北大核心2023】；

基金：中国林业科学研究院中央级公益性科研院所基本科研业务费专项资金(CAFYBB2020MB003);国家自然科学基金青年基金(32201442)。

语种：中文

中文关键词：生态承载力;林场尺度;固碳;涵养水源;固土

外文关键词：ecological carrying capacity;forest farm scale;carbon sequestration;water conservation;soil fixation

分类号：S718.56

摘要：林场尺度森林生态系统服务供给能力的合理评价对以生态公益林为主的林场森林质量评估及森林经营措施的制定具有重要意义。基于传统生态足迹模型,结合九龙山林场2004、2009、2014、2019年的森林资源调查数据,以北京市森林生态系统在各时间节点的固碳、涵养水源和固土服务的平均供给能力及北京市对这些服务的年需求量为基础,构建改进的生态足迹模型,对九龙山林场内乔木林地小班的服务供给能力进行评价。结果表明:(1)2004年至2019年,九龙山林场各森林小班的人均生态足迹整体下降89.17%,其中固土服务的生态足迹降幅最大,其次为涵养水源服务,固碳服务的降幅最小。(2)九龙山林场森林生态系统的人均生态承载力整体提升52.73%,其中固碳服务的人均生态承载力涨幅最大,其次为固土服务,涵养水源服务涨幅最低。(3)九龙山林场森林生态系统服务的供给能力从生态赤字逐步过渡到生态平衡,并最终达到生态盈余阶段。截至2019年,仅有少量油松和柞树小班的固碳服务处于生态赤字状态,建议根据森林小班生境特点采取人工促进天然更新、生长伐和林下补植等措施提高赤字小班森林固碳能力。
Forest farms serve as fundamental operational units for implementing forest management practices.Evaluating forest ecosystem service carrying capacity at the subcompartment level,while considering forest management and socioeconomic contexts,is crucial for developing effective forest management strategies.This study quantified the provisioning capacity of carbon sequestration,water conservation,and soil retention services using forest inventory data and field observations from four temporal benchmarks(2004,2009,2014,2019)at Jiulong Mountain Forest Farm.By integrating Beijing′s regional averages of supply capacity and demand for these three ecosystem services,we developed a specific ecological footprint model for the Jiulong Mountain forest ecosystem.The results facilitated analysis of supply-demand discrepancies in forest ecosystem services under ecological pressures from Beijing′s socioeconomic development.The main research findings are as follows:(1)From 2004 to 2019,the average per capita ecological footprint in Jiulong Mountain Forest Farm decreased significantly by 89.17%,while the average per capita ecological carrying capacity increased by 52.73%.Soil retention services exhibited the most significant per capita footprint reduction,water conservation services demonstrated the second-largest decrease,and carbon sequestration services showed the relatively smallest decline.Carbon sequestration services achieved the most substantial per capita capacity increase,soil retention services showed intermediate growth,and water conservation services registered the most modest improvement.Significant variations were observed in both per capita ecological footprint and carrying capacity across different forest stand types.Broadleaf forests had the highest values in both per capita ecological footprint and carrying capacity,followed by Platycladus orientalis,while Larix gmelinii had the lowest.(2)Under the dual influences of optimized forest ecosystem structure/function and improved energy conservation/ecological engineering in socioeconomic development,Jiulong Mountain Forest Farm′s ecosystem services(carbon sequestration,water conservation,and soil retention)transitioned from ecological deficit to surplus.By 2019,only 20 forest subcompartments maintained carbon sequestration deficits,predominantly occurring in Pinus tabuliformis stands with growing stock<30 m^(3)/hm^(2) and Quercus spp.stands with growing stock<40 m^(3)/hm^(2).For subcompartments with stand density below 500 stems/hm^(2),we recommend promoting natural regeneration and enriching understory vegetation.For forest subcompartments exceeding 500 stems/hm^(2) stand density,the following structural optimization measures are proposed to enhance carbon sequestration capacity:selective thinning operations and understory vegetation enrichment planting.(3)This study was conducted at the forest farm scale,revealing substantial variability in equivalence factors and yield factors across forest subcompartments,with coefficient of variation(CV)ranging from 42.78%to 96.81%for different ecosystem services.Compared to conventional“one-parameter-for-all”approaches,our findings better capture the spatial heterogeneity of forest ecosystem service provision at the forest farm scale,demonstrating the necessity of spatially explicit ecological footprint modeling for specific management units.This methodology proves particularly applicable for evaluating ecosystem service provision capacity in forest farms dominated by ecological public welfare forests,and holds significant implications for advancing differentiated assessments of forest resource service supply capabilities at the management unit scale.