防护林科技
防護林科技
방호림과기
Protection Forest Science and Technology
2015年
9期
8-10,20
,共4页
杉木%厚朴%混交林%现存量%持水性能
杉木%厚樸%混交林%現存量%持水性能
삼목%후박%혼교림%현존량%지수성능
Cunninghamia lanceolata%Magnolia officinalis%mixed forest%litter standing crop%water-holding char-acter
为探讨杉木人工纯林与混交林生态水文功能，采用样地调查和室内分析相结合的方法，对福建建瓯市杉木人工纯林和杉木-厚朴人工混交林枯落物现存量、持水量、持水率和吸水速率进行了测定，结果表明：杉木纯林枯落物现存量和最大持水量高于杉木-厚朴混交林，分别为5.94、3.81 t hm-2和11.55、7.87 t hm-2；混交林的持水率高于纯林，分别为218.72%、187.58%；吸水速率在浸水前0.5 h 时间段混交林也高于纯林，分别为3.44和2.65 g g-1 h-1。混交林枯落物层可在短时间内迅速吸收降水，减少水土流失，具有较强的生态防护功能。
為探討杉木人工純林與混交林生態水文功能，採用樣地調查和室內分析相結閤的方法，對福建建甌市杉木人工純林和杉木-厚樸人工混交林枯落物現存量、持水量、持水率和吸水速率進行瞭測定，結果錶明：杉木純林枯落物現存量和最大持水量高于杉木-厚樸混交林，分彆為5.94、3.81 t hm-2和11.55、7.87 t hm-2；混交林的持水率高于純林，分彆為218.72%、187.58%；吸水速率在浸水前0.5 h 時間段混交林也高于純林，分彆為3.44和2.65 g g-1 h-1。混交林枯落物層可在短時間內迅速吸收降水，減少水土流失，具有較彊的生態防護功能。
위탐토삼목인공순림여혼교림생태수문공능，채용양지조사화실내분석상결합적방법，대복건건구시삼목인공순림화삼목-후박인공혼교림고락물현존량、지수량、지수솔화흡수속솔진행료측정，결과표명：삼목순림고락물현존량화최대지수량고우삼목-후박혼교림，분별위5.94、3.81 t hm-2화11.55、7.87 t hm-2；혼교림적지수솔고우순림，분별위218.72%、187.58%；흡수속솔재침수전0.5 h 시간단혼교림야고우순림，분별위3.44화2.65 g g-1 h-1。혼교림고락물층가재단시간내신속흡수강수，감소수토류실，구유교강적생태방호공능。
In order to explore the hydrological functions of pure and mixed forest of Cunninghamia lanceolata ,litter standing crop,water holding capacity,water holding rate & water absorption rate in pure forest of C.lanceolata and mixed forest of C.lanceolata and Magnolia officinalis in Jian’ou City of Fujian Province were determined by the combination of sample plot survey and indoor analysis.Result shows that the litter standing crop and maximum moisture capacity of C.lanceolata was higher than that of mixed forest of C.lanceolata and M.officinalis ,being 5.94 & 3.81 t hm-2 ,1 1.55 & 7.87 t hm-2 respectively;the water holding rate of mixed forest is higher than that of pure forest,being 218.72% & 187.58%,respectively;water absorbing rate of mixed forest is higher than that of pure forest,being 3.44 & 2.65 g g-1 h-1 .The litter layer of mixed forest can rapidly absorb rainfall in a short time,reduce soil erosion,with a strong ecological protection.
