吉林省森林生态系统涵养水源功能时空变化特征  

Temporal and Spatial Patterns of Water Conservation Function of Forest Ecosystem in Jilin Province

作　　者：宋庆丰[1,2] 王兵 牛香[1,2,3] Song Qingfeng;Wang Bing;Niu Xiang(Research Institute of Forest Ecology,Environment and Protection,CAF,Beijing 100091,China;Key Laboratory of Forest Ecology and Environment,National Forestry and Grassland Administration,Beijing 100091,China;Beijing Collaborative Innovation Center for Eco-environmental Improvement with Forestry and Fruit Trees,Beijing 102206,China)

机构地区：[1]中国林业科学研究院森林生态环境与保护研究所,北京100091 [2]国家林业和草原局森林生态环境重点实验室,北京100091 [3]北京林业果业生态环境功能提升协同创新中心,北京102206

出　　处：《北华大学学报（自然科学版）》2019年第4期524-529,共6页Journal of Beihua University（Natural Science）

基　　金：林业公益性行业科研专项(201404303);科技部国家科技计划项目(2018-R28,2017-R11);科技创新服务能力建设-协同创新中心-林业果业生态环境功能提升协同创新中心项目(2011协同创新中心)(市级)(PXM2017_014207_000024)

摘　　要：涵养水源是森林生态系统的重要功能之一,其维持区域水资源安全的作用十分明显,作为东北多条江河的发源地,在吉林省内此功能的作用更为重要.采用2006,2011和2013年吉林省森林资源数据和森林生态站及辅助观测样地的长期监测数据,对吉林省森林生态系统涵养水源功能进行时空动态研究.结果表明:1)吉林省森林生态系统的水源涵养功能在逐渐提升,2006,2011和2013年吉林省森林生态系统涵养水源量分别为175.06万m^3/a,185.14万m^3/a和197.28万m^3/a;2)吉林省森林生态系统涵养水源功能呈现出东部>中部>西部的空间分布格局;3)影响吉林省森林生态系统涵养水源功能时空格局的驱动因子为森林资源面积、森林资源质量、森林资源结构(起源和林龄)、气候因素和林业政策(尤其是林业生态工程).本研究能够为吉林省生态建设和林业政策的制定提供理论依据,继而使森林生态系统发挥更大的涵养水源作用.Water conservation is one of the important functions of forest ecosystem,and its role in maintaining regional security of water resources is very obvious.As the source of several rivers in northeast China,this function is more important in Jilin province.The spatial-temporal dynamic study on the water conservation function of forest ecosystem in Jilin province was conducted by using the forest resource data of Jilin province in2006,2011 and2013 and the long-term monitoring data of forest ecological station and auxiliary observation sample.The results showed that:1) In2006,2011 and2013,the water conservation capacity of forest ecosystem in Jilin province was1.750 6×10^7,1.851 4×10^7 and1.972 8×10^7 m^3/a,respectively,and the water conservation function was gradually improving;2) Spatial distribution pattern of forest ecosystem water conservation function in Jilin province is as follows:eastern> mid> western;3) Driving factors influencing the spatial and temporal pattern of forest ecosystem conservation water resource function in Jilin province:forest resource area,forest resource quality, forest resource structure (origin and forest age),climate factors and forestry policies (especially forestry ecological engineering).This study can provide theoretical basis for the ecological construction and the formulation of forestry policies in Jilin province so that the forest ecosystem can play greater role in water conservation.

关 键 词：吉林省 森林资源 时空分布格局 驱动因子 

分 类 号：S718.5[农业科学—林学]