摘要
2017年10月,选取浙江省江山市典型地段的阔叶林、毛竹Phyllostachys edulis林、杉木Cunninghamia lanceolata林、马尾松Pinus massoniana林、针阔混交林、灌木林设立标准样地,研究不同森林类型枯落物持水性能。结果表明,6种不同森林类型枯落物储量为7.86~25.64 t·hm^-2,由大到小依次为针阔混交林>阔叶林>马尾松林>杉木林>毛竹林>灌木林,且枯落物厚度和储量大小排序一致;最大持水量变化在11.19~33.42 t·hm^-2,有效拦蓄率范围为87.37%~126.41%,有效拦蓄量由大到小依次为针阔混交林>阔叶林>杉木林>马尾松林>毛竹林>灌木林,含阔叶树种的森林枯落物的持水能力优于针叶林;枯落物持水量与浸泡时间呈对数函数关系,吸水速率与浸泡时间呈幂函数关系。
Standard sample plots were established in October of 2017 in broad-leaved forest,Phyllostachys edulis forest,Cunninghamia lanceolata forest,Pinus massoniana forest,mixed broadleaf and conifer forest,shrub in Jiangshan city,Zhejiang province,to study their litter water holding capacity.The results demonstrated that litter reserves ranged 7.86-25.64 t/ha,ordered by mixed broadleaf and conifer forest>broad-leaved forest>pine forest>Chinese fir forest>bamboo forest>shrub,and the litter thickness had positive relation with reserves.The largest capacity of water holding changed from 11.19 to 33.42 t/ha,and the effective water retention rate from 87.37%to 126.41%.The order of effective water retention was followed by mixed broadleaf and conifer forest(25.18 t/ha)>broad-leaved forest(22.38 t/ha)>Chinese fir forest(21.87 t/ha)>pine forest(19.01 t/ha)>bamboo forest(15.01 t/ha)>shrub(7.86 t/ha).The experiments resulted that broad-leaved forest had better water holding capacity than coniferous forest,water holding capacity of litter had logarithmic function with soaking time,and water absorption rate had power function relation with soaking time.
作者
廖文海
曾春兴
孙欧文
姜轶
吴家森
蒋仲龙
LIAO Wen-hai;ZENG Chun-xing;SUN Ou-wen;JIANG-Yi;WU Jia-sen;JIANG Zhong-long(Jiangshan Forestry Bureau of Zhejiang,Jiangshan 324100,China;School of Environment&Resource,Zhejiang A&F University,Hangzhou 311300,China;Zhejiang Ecological Forest and State Forest Farm Administration,Hangzhou 310020,China)
出处
《浙江林业科技》
2019年第6期63-68,共6页
Journal of Zhejiang Forestry Science and Technology
基金
国家科技支撑计划团队任务“低效公益林更新改造和健康维持技术研究与示范”(2012BAD22B0503)
浙江省江山市公益林建设成效评估(ZC2017ZFCG-024)。
关键词
江山市
森林类型
枯落物
持水性能
Jiangshan city
forest type
litter
water holding capacity
