摘要
利用森林生态连清数据、森林资源清查数据和社会公共数据,从森林生态系统的活力、结构、抵抗力和服务功能4大类指标,综合分析了中国森林生态系统质量状况。结果表明:近40年来,我国森林资源数量持续增长;森林覆盖率提高10.96个百分点;森林蓄积量增加量为85.32亿m^(3),增幅为94.51%;森林单位面积蓄积量增加4.83 m^(3)/hm^(2);全国乔木林单位面积蓄积量94.83 m^(3)/hm^(2);森林生态服务功能中涵养水源量增加了3680.61亿m^(3)/a、固碳量增加了2.59亿t/a。近40年来,我国森林资源面积持续增加,森林生态系统活力不断增强,结构趋于合理,抵抗力不断提高,生态服务功能稳步提升,森林生态系统质量得到逐步提高。研究结果对促进新时期林业高质量发展具有重要参考意义。
This study using forest ecological linkage data,forest resource inventory data and social public data described the quality of China's forest ecosystem from four categories of indicators,namely,vitality,structure,resistance and service function.The results show that in the past 40 years,the number of forests in China has continued to grow;The forest coverage rate increased by 10.96 percentage points;The forest stock volume increased by 8.532 billion m^(3),an increase of 94.51%;The volume of forest per unit area increased by 4.83 m^(3)/hm^(2);The national tree forest volume per unit area is 94.83 m^(3)/hm^(2);The amount of water conservation in the forest ecological service function has increased by 368.061 billion m^(3)/a,and the amount of carbon fixation has increased by 259 million t/a.In the past 40 years,the area of forest resources in China has continued to increase,the vitality of forest ecosystems has been continuously enhanced,the structure has become reasonable,the resistance has been continuously improved,the ecological service function has been steadily enhanced,and the quality of forest ecosystems has been gradually improved.The results have important reference significance for promoting the high-quality development of forestry in the new era.
作者
牛香
陈波
郭珂
王兵
Niu Xiang;Chen Bo;Guo Ke;Wang Bing(Key Laboratory of Forest Ecology and Environment of National Forestry and Grassland Administration,Ecology and Nature Conservation Institute,Chinese Academy of Forestry,Beijing 100091,China;Institute of Forestry and Pomology,Beijing Academy of Agriculture and Forestry Sciences,Beijing 100093,China;School of Information Science&Technology,Beijing Forestry University,Beijing 100083,China)
出处
《陆地生态系统与保护学报》
2022年第5期32-40,共9页
Terrestrial Ecosystem and Conservation
基金
中国科学院野外站联盟项目(KFJ-SW-YW034)
“十四五”国家重点研发计划项目(2021YFF0703905)。
关键词
森林生态系统
森林质量
活力
结构
抵抗力
服务功能
forest ecosystem
forest quality
vitality
structure
resistance
service function
