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[1]PU Jialin,LIU Liang.Hydrology Functions and Decomposition Characteristics of Litter in Subtropical Forest[J].Research of Soil and Water Conservation,2019,26(06):165-170.

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Hydrology Functions and Decomposition Characteristics of Litter in Subtropical Forest

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 26 Number of periods: 2019 06 Page number: 165-170 Column: Public date: 2019-10-17

Title:: Hydrology Functions and Decomposition Characteristics of Litter in Subtropical Forest

Author(s):: PU Jialin¹, LIU Liang²; 1. Jiangxi University of Engineering, Xinyu, Jiangxi 338000, China;
2. Nine 0 Two Geological Brigade, Geological and Mineral Exploration and Development Bureau of Jiangxi, Xinyu, Jiangxi 338000, China

Keywords:: subtropical forest; litter; decomposition characteristics; hydrology functions

CLC:: S715

DOI:: -

Abstract:: In order to explore hydrology functions and decomposition characteristics of litter in subtropical forest, the method of leaf litter decomposition bag was used to study the litter decomposition residual rate, decomposition rate, regression model and hydrographic trait in the decomposition process. The dominant tree species (Castanopsis fargesii, Cyclobalanopsis glauca, Liquidambar formosana, Pinus massoniana) were selected as the research samples. The results showed that:(1) the thickness of under-composed layer was more than half than that of total litter thickness, and semi-decomposed layer was more than half than that of total litter thickness, which showed the sequence:Castanopsis fargesii > Cyclobalanopsis glauca > Liquidambar formosana > Pinus massoniana, and the total volume of litter decreased in the order:Castanopsis fargesii (22.3 t/hm²) > Cyclobalanopsis glauca > Liquidambar formosana > Pinus massoniana (7.2 t/hm²); (2) the maximum capacity of soil moisture, the maximum rate of soil moisture, natural moisture rate, the effective rate of interception and the effective capacity of interception decreased in the sequence:Castanopsis fargesii > Cyclobalanopsis glauca > Liquidambar formosana > Pinus massoniana with under-composed layer>semi-decomposed layer; (3) the decomposition residue rate of litter presented the trend of ‘sharp decrease-gentle decrease-slow decrease’, the sharp decline of litter occurred in the first 1~2 months of litter decomposition, a gradual decomposition occurred in 2~3 months, followed by a slow decomposition. The decomposition residual rates of litter in different decomposition periods increased in the order:Castanopsis fargesii < Cyclobalanopsis glauca < Liquidambar formosana < Pinus massoniana; (4) the half-life of decomposition of litter increased in the order:Castanopsis fargesii < Cyclobalanopsis glauca < Liquidambar formosana < Pinus massoniana, and the half-life of decomposition of broadleaf plants was lower than those of the conifer plants; (5) the water holding rate of litter was positively correlated with the decomposition residue rate (p<0.05), and the water holding rate and decomposition residue rate of litter could be described by the linear model; there was a positive correlation between soil moisture content and litter water holding rate (p<0.05). Totally, the decomposition rate of broadleaf litter was higher than that of coniferous forest.

References:: [1] 朱金兆,刘建军,朱清科,等.森林凋落物层水文生态功能研究[J].北京林业大学学报,2002,24(5):30-34.
[2] 张佳佳,傅伟军,杜群,等.浙江省森林凋落物碳密度空间变异特征[J].林业科学,2014,50(2):8-13.
[3] 杨新芳,鲍雪莲,胡国庆,等.大兴安岭不同火烧年限森林凋落物和土壤C, N, P化学计量特征[J].应用生态学报,2016,27(5):1359-1367.
[4] 谌贤,刘洋,唐实玉,等.川西亚高山森林凋落物不同分解阶段基质质量特征[J].西北植物学报,2017,37(3):586-594.
[5] 肖文娅,关庆伟.干扰对森林凋落物分解影响的研究现状及展望[J].生态环境学报,2018,27(5):983-990.
[6] 韩雪,王春梅,蔺照兰.模拟氮沉降对温带森林凋落物分解的影响[J].生态环境学报,2014,23(9):1503-1508.
[7] 林成芳,彭建勤,洪慧滨,等.氮、磷养分有效性对森林凋落物分解的影响研究进展[J].生态学报,2017,37(1):54-62.
[8] 武启骞,王传宽.季节性雪被变化对森林凋落物分解及土壤氮动态的影响[J].应用生态学报,2018,29(7):2422-2432.
[9] 贾丙瑞,周广胜,刘永志,等.中国天然林凋落物量的空间分布及其影响因子分析[J].中国科学:生命科学,2016,46(11):1304-1311.
[10] 贾艳艳,杜小凤,王伟中,等.钠添加对亚热带森林凋落物分解及其微生物活性的影响[J].东北林业大学学报,2017,45(11):39-44.
[11] 刘璐,赵常明,徐文婷,等.神农架常绿落叶阔叶混交林凋落物动态及影响因素[J].植物生态学报,2018,42(6):619-628.
[12] 陈平,赵博,杨璐,等.接种蚯蚓和添加凋落物对油松人工林土壤养分和微生物量及活性的影响[J].北京林业大学学报,2018,40(6):63-71.
[13] 施昀希,黎建强,陈奇伯,等.滇中高原5种森林类型凋落物及营养元素储量研究[J].生态环境学报,2018,27(4):617-624.
[14] 陶继新,魏强,凌雷,等.甘肃兴隆山天然林苔藓凋落物自然持水特性[J].林业科技通讯,2017,12(3):22-28.
[15] 陈晓丽,王根绪,杨燕,等.山地森林表层土壤酶活性对短期增温及凋落物分解的响应[J].生态学报,2015,35(21):7071-7079.
[16] 李晗,吴福忠,杨万勤,等.亚高山森林林窗对凋落物分解过程中半纤维素动态的影响[J].植物生态学报,2015,39(3):229-238.
[17] 周世兴,黄从德,向元彬,等.模拟氮沉降对华西雨屏区天然常绿阔叶林凋落物木质素和纤维素降解的影响[J].应用生态学报,2016,27(5):1368-1374.
[18] 李伟,刘小飞,陈光水,等.凋落物对中亚热带米槠天然林和人工林土壤呼吸的影响[J].林业科学,2016,52(11):11-18.
[19] 吴春生,刘苑秋,魏晓华,等.亚热带典型森林凋落物及细根的生物量和碳储量研究[J].西南林业大学学报,2016,36(5):45-51.
[20] 李宜浓,周晓梅,张乃莉,等.陆地生态系统混合凋落物分解研究进展[J].生态学报,2016,36(16):4977-4987.
[21] 崔鸿侠,潘磊,黄志霖,等.神农架巴山冷杉林凋落物量养分归还及分解特征[J].南京林业大学学报:自然科学版,2017,41(1):194-198.
[22] 徐胜,付伟,平琴,等.气候变化对树木凋落物分解的影响研究进展[J].生态学杂志,2017,36(11):3266-3272.

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