福建师范大学学报（自然科学版）2025，Vol.41Issue(5)：116-122,7.DOI:10.12046/j.issn.1000-5277.2024060030
哀牢山常绿阔叶林和人工林凋落物持水特性比较
Comparison of Water-Holding Capacity of Litter Layers between Evergreen Broad-Leaved Forests and Plantations in Ailao Mountain
摘要
Abstract
The water-holding capacity of litter layers varies among different forest vegetation types.To investigate the differences in water retention and water conservation ability between natural forests and plantations,a five-point sampling method was employed to study the litter standing crop,water-holding rate,water absorption rate,maximum water-holding capacity,and effective intercep-tion of litter layers in evergreen broad-leaved forest,Pinus armandii(P.armandii)forest,and Al-nus nepalensis(A.nepalensis)forest of the Ailao Mountain.The results showed that:(1)The litter standing crop(7.78 t·hm-2),maximum water-holding capacity(22.02 t·hm-2),and effective interception(16.00 t·hm-2)of the evergreen broad-leaved forest were significantly higher than those of the P.armandii forest and A.nepalensis forest(P<0.01),with the A.nepalensis forest be-ing the lowest.(2)The water-holding rate of the litter followed the order:evergreen broad-leaved forest>A.nepalensis forest>P.armandii forest.With increasing immersion time,the water absorp-tion rate of all litter types declined rapidly,but the semi-decomposed layer consistently exhibited higher water-holding rate and water absorption rate than the undecomposed layer.Compared with plantation forests,natural forests demonstrated stronger water conservation ability.These findings provide a reference for forest vegetation restoration in the Ailao Mountain.关键词
森林类型/凋落物层/持水性能/有效拦截量Key words
forest types/litter layer/water-holding capacity/effective interception分类
农业科技引用本文复制引用
闻国静,李振学,杨大新,张树斌..哀牢山常绿阔叶林和人工林凋落物持水特性比较[J].福建师范大学学报（自然科学版）,2025,41(5):116-122,7.基金项目
云南省野外科学观测站项目(202105AM070018) （202105AM070018）
云南省重点研发计划(202403AC100028) （202403AC100028）
云南省中青年学术和技术带头人后备人才项目(202405AC350012) （202405AC350012）
