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东莞大屏嶂森林公园人工林凋落物的持水特性
引用本文:杨运振,林观土. 东莞大屏嶂森林公园人工林凋落物的持水特性[J]. 广东林业科技, 2009, 25(6): 76-80
作者姓名:杨运振  林观土
作者单位:1. 东莞市大屏嶂林场,广东东莞,523725
2. 华南农业大学信息学院
3. 广东省林业科学研究院
基金项目:华南农业大学校长基金(2007X021),广东省林业局项目“广东省森林生态效益监测站建设与研究”部分研究内容
摘    要:对广东省东莞大屏障森林公园7种林分凋落物储量和持水过程进行研究,结果表明:凋落物的吸水速率随浸泡时间呈幂函数曲线降低,持水量随浸泡时间的增加呈对数曲线增长,不同森林类型的凋落物厚度为2.2~8.1cm,现存量4.42~9.31t·hm^-2,最大持水量介于4.52~14.23t·hm^-2,7种林分凋落物现存量和最大持水量的顺序为荷木〉杉木〉马占相思〉藜蒴〉鸭脚木〉粉丹竹〉马尾松,其中荷木林最大,水文生态效益显著,而马尾松林则最低。

关 键 词:东莞大屏嶂森林公园  凋落物  现存量  持水率  持水量  吸水速率
收稿时间:2009-07-14
修稿时间:2009-09-14

WATER HOLDING CHARACTERISTICS OF LITTER IN PLANTATIONSIN DAPINGZHANG FOREST PARK,Dongguan
YANG Yun-zhen and LIN GUAN TU. WATER HOLDING CHARACTERISTICS OF LITTER IN PLANTATIONSIN DAPINGZHANG FOREST PARK,Dongguan[J]. Forestry Science and Technology of Guangdong Province, 2009, 25(6): 76-80
Authors:YANG Yun-zhen and LIN GUAN TU
Affiliation:Yang Yunzhen1 Yan Chaodong1 Zheng Chaoming1Lin Guantu2 Zhou Yi3 Zhong Xijun3(1.Dapingzhang Forest Farm,Dongguan,523725,2.College of Information,South China Agricultural University,3.Guangdong Forestry Research Institute)
Abstract:By the methods of field survey and soaking extraction, the storage, water-holding capacity, water-holding rate, and water-absorption rate of the litters in 7 difference plantations in Dapingzhang Forest Farm, Dongguan were studied. The results showed that the litter storage was 4.42-9.31t hm-2 and its depth was 2.2-81.cm. The water holding capacity and water holding rate of the litters increased logarithmically with soaking time while the water absorption rate assumed a power decreased function. Overall ,the litter storage and max. water-holding capacity decreased in the order of Schima superba> Cunninghamia lanceolata> Acacia mangium>Castanopsis sfissa. >Schefflera octophylla>Bambus achungii>Pinus massoniana. that the Schima superba is most greatest, and the Pinus massoniana is smallest.
Keywords:Dapinzhang Forestry Park   litter   litter storage   water-holding rate   water-holding capacity   water-absorption rate
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