Abstract：[Background] Changting county in Fujian province is one of the most severely eroded granite red soil counties in southern China. Rainfall kinetic energy is the direct driving force of soil erosion in the southern red soil area, and it is also the main cause of soil erosion. Studying the rainfall redistribution characteristics of Pinus massoniana in Changting county of Fujian province will provide a theoretical basis for soil erosion control. [Methods] Taking 36 P. massoniana in Hetian town, a typical southern soil erosion area, as the research object, we continuously observed the rainfall, throughfall, and stem flow outside the forest from May to November 2018. The relationship between throughfall, stem flow, canopy interception and rainfall, rainfall intensity were studied, and the correlation analysis and fitting of rainfall data with DBH (diameter at breast height), tree height, crown width, and LAI (leaf area index) were carried out to study the impact on rainfall redistribution. A total of 90 rainfall events were observed. [Results] 1) The cumulative rainfall outside the forest was 1 191.0 mm, the throughfall was 1 018.7 mm, the canopy interception was 156.9 mm, and the stem flow was 15.4 mm. 2) The throughfall, canopy interception, and stem flow accounted for the cumulative total 85.53%, 13.17% and 1.29% of rainfall. 3) Rainfall and rainfall intensity were significantly correlated with rainfall redistribution and had a good fitting effect. From the calculation of the fitting equation, it can be seen that throughfall was generated when the rainfall exceeded 1.53 mm, and the stem flow was generated when the rainfall exceeded 2.82 mm.4) LAI had a logarithmic function relationship with penetrating rain and canopy interception, and canopy width had an exponential function relationship with stem flow. [Conclusions] By observing the rainfall of the P. massoniana forest in the typical soil erosion area in the South China, the redistribution characteristics of the P. massoniana rainfall are obtained, and scientific guidance is provided for the management of the P. massoniana forest in the soil erosion area.
汪水前. 南方水土流失区马尾松对降雨再分配的影响[J]. 中国水土保持科学, 2022, 20(2): 99-105.
WANG Shuiqian. Effects of Pinus massoniana in soil erosion area in South China on rainfall redistribution. SSWC, 2022, 20(2): 99-105.
孙忠林,王传宽,王兴昌,等.两种温带落叶阔叶林降雨再分配格局及其影响因子[J].生态学报, 2014, 34(14):3978. SUN Zhonglin, WANG Chuankuan, WANG Xingchang, et al. Rainfall redistribution patterns and their influencing factors of two temperate deciduous forests[J]. Acta Ecologica Sinica, 2014, 34(14):3978.
[2]
STAELENS J, AN D S, VERHEYEN K, et al. Rainfall partitioning into throughfall, stemflow, and interception within a single beech (Fagus sylvatica L.) canopy:Influence of foliation, rain event characteristics, and meteorology[J]. Hydrological Processes, 2010, 22(1):33.
[3]
MA C, LUO Y, SHAO M. Comparative modeling of the effect of thinning on canopy interception loss in a semiarid black locust (Robinia pseudoacacia) plantation in Northwest China[J]. Journal of Hydrology, 2020(590):125234.
[4]
VANDERTOL C. Average wet canopy evaporation for a Sitka spruce forest derived using the eddy correlation-energy balance technique[J]. Journal of Hydrology, 2003, 276(1/4):12.
[5]
姜林英.亚热带次生林林冠截留特征及模拟研究[D].长沙:中南林业科技大学, 2019:1. JIANG Linying. Study on canopy interception characteristics and model simulation of subtropical secondary forest[D].Changsha:Central South University of Forestry and Technology, 2019:1.
[6]
LEVIA D F, FROST E E. Variability of throughfall volume and solute inputs in wooded ecosystems[J]. Progress in Physical Geography, 2006, 30(5):605.
[7]
GONZALEZ-OLLAURI A, STOKES A, MICKOVSKI S B. A novel framework to study the effect of tree architectural traits on stemflow yield and its consequences for soil-water dynamics[J]. Journal of Hydrology, 2020(582):124448.
[8]
HASSAN S M T, CHIMIRE C P, LUBCZYNSKI M W. Remote sensing upscaling of interception loss from isolated oaks:Sardon catchment case study, Spain[J]. Journal of Hydrology, 2017, 555:489.
[9]
熊壮,叶文,张树斌,等.元江稀树灌丛降雨再分配及其与气象因子的关系[J].西北林学院学报,2019,34(1):47. XIONG Zhuang, YE Wen, ZHANG Shubin, et al. Rainfall redistribution and its relationship with meteorological factors in Yuanjiang Valley-type Savanna, Southwest China[J]. Journal of Northwest Forestry University,2019,34(1):47.
[10]
李连强,杨会侠,丁国泉,等.辽东半岛赤松和蒙古栎林降雨再分配特征及其相关性分析[J].北京林业大学学报,2020,42(11):47. LI Lianqiang, YANG Huixia, DING Guoquan, et al. Precipitation redistribution characteristics and its correlation analysis of Pinus densiflora and Quercus mongolica forests in the Liaodong Peninsula of northeastern China[J]. Journal of Beijing Forestry University, 2020,42(11):47.
[11]
邓洋波,余坤勇,俞欣妍,等.基于点云体素化的单木叶面积指数地基遥感反演[J]西北林学院学报,2017,32(3):191. DENG Yangbo, YU Kunyong, YU Xinyan, et al. Estimation of individual tree leaf area index of terrestrial remote sensing inversion based on point cloud voxelization[J]. Journal of Northwest Forestry University, 2017, 32(3):191.
[12]
曹云,黄志刚,欧阳志云,等.湖南省张家界马尾松林冠生态水文效应及其影响因素分析[J].林业科学,2006, 42(12):13. CAO Yun, HUANG Zhigang, OU-YANG Zhiyun, et al. Eco-hydrological effect of Pinus massoniana canopy and its influence factors in Zhangjiajie of Hunan province[J]. Science Silvae Sinicae, 2006, 42(12):13.
[13]
杜妍,孙永涛,李宗春,等.苏南马尾松林分冠层水文过程对降雨的响应特征[J].北京林业大学学报, 2019, 41(6):120. DU Yan, SUN Yongtao, LI Zongchun, et al. Response of hydrological processes of Pinus massoniana forest to rainfall in southern Jiangsu province of eastern China[J]. Journal of Beijing Forestry University, 2019, 41(6):120.
[14]
陈书军,陈存根,邹伯才,等.秦岭天然次生油松林冠层降雨再分配特征及延滞效应[J].生态学报, 2012, 32(4):138. CHEN Shujun, CHEN Cungen, ZHOU Bocai, et al. Time lag effects and rainfall redistribution traits of the canopy of natural secondary Pinus tabulaeformis on precipitation in Qinling Mountains China[J]. Chinese Journal of Ecology, 2012, 32(4):138.
[15]
凡国华,韩城,孙永涛,等.长三角地区马尾松林降雨再分配特征[J].西南农业学报, 2019, 32(2):422. FAN Guohua, HAN Cheng, SUN Yongqing, et al. Rainfall redistribution in Pinus massoniana forest of Yangtze River Delta[J]. Southwest China Journal of Agricultural Science, 2019, 32(2):422.
[16]
李奕,蔡体久,满秀玲,等.大兴安岭地区天然樟子松林降雨截留再分配特征[J].水土保持学报, 2014,28(2):43. LI Yi, CAI Tijiu, MAN Xiuling, et al. Canopy interception and distribution characteristics of Scotch pine forest in Da Xing'an Mountains[J]. Journal of Soil and Water Conservation, 2014, 28(2):43.
2022, Vol. 20 
