CAJ | 학술논문

运用径流小区观测法,研究了闽北坡地杉木林、锥栗林、果园及裸露对照地水土流失与降雨历时的关系,结果表明：降雨历时与径流量呈极显著的线性相关,但相关系数较低,而与土壤流失次数、土壤流失量均无明显的相关性;历时较长的降雨在所有土地利用方式中均产生较多的径流量,历时较短的降雨对缺乏植被覆盖土地的土壤流失量产生较大影响,而对植被覆盖良好的土地影响较小;在长历时的降雨条件下,植被的水土保持作用将被削弱.
운용경류소구관측법,연구료민북파지삼목림、추률림、과완급라로대조지수토류실여강우력시적관계,결과표명：강우력시여경류량정겁현저적선성상관,단상관계수교저,이여토양류실차수、토양류실량균무명현적상관성;력시교장적강우재소유토지이용방식중균산생교다적경류량,력시교단적강우대결핍식피복개토지적토양류실양산생교대영향,이대식피복개량호적토지영향교소;재장력시적강우조건하,식피적수토보지작용장피삭약.
The relationship between rainfall duration and loss of soil and water in diverse land-use types（Chinese fir forest,Castanea henryi forest,orchard,etc.）in Northern Fujian was investigated with establishment of runoff plot.The results indicate that the extremely significant linear correlation between rainfall duration and runoff amount was observed,whereas there were non-significant correlations between rainfall duration and time and amount of soil loss.Rainfall with short duration affected soil loss in bared lands greatly and the role of vegetation in soil and water conservation was weakened with long-time rainfall.