[1]李军,田超,杨新兵.河北省木兰林管局典型森林类型枯落物水文效应研究[J].水土保持研究,2011,18(04):192-196.
　LI Jun,TIAN Chao,YANG Xin-bing.Hydrological Effects of Typical Forest Litters in the Mulan Forestry Administration of Hebei Province[J].Research of Soil and Water Conservation,2011,18(04):192-196.
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河北省木兰林管局典型森林类型枯落物水文效应研究

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 18 期数: 2011年04期 页码: 192-196 栏目: 出版日期: 2011-08-20
Title:
Hydrological Effects of Typical Forest Litters in the Mulan Forestry Administration of Hebei Province
作者:
李军1,2, 田超1, 杨新兵1
1. 河北农业大学, 河北保定 071000;
2. 河北省木兰围场国有林场管理局, 河北围场 068450
Author(s):
LI Jun1,2, TIAN Chao1, YANG Xin-bing1
1. Agricultural University of Hebei, Baoding, Hebei 071000, China;
2. Mulan Forestry Adminstration of Hebei Province, Weichang, Hebei 068450, China
关键词:
木兰林管局; 枯落物; 水文效应
Keywords:
Mulan forestry administration; litter; hydrological effect
分类号:
S715
摘要:
枯落物层作为森林水文效应的第二个活动层，在调节森林水文过程中具有重要的意义。对木兰林管局6种典型天然林分枯落物层的水文效应进行了初步研究，结果表明：（1）华北落叶松-白桦-黑桦混交林枯落物总蓄积量最大为30.47 t/hm2，最大持水量最高为63.57 t/hm2；白桦-黑桦混交林枯落物最大持水率最大为257.80%。（2）未分解层和半分解层枯落物浸泡12 h均已基本达到饱和，持水量与浸泡时间呈明显对数关系；枯落物吸水速度在开始1 h内较快，6 h后速度逐渐减慢，吸水速率与浸泡时间均呈明显幂函数关系。（3）华北落叶松-白桦-黑桦混交林的有效拦蓄能力最强，为48.60 t/hm2；山杨-黑桦-蒙古栎混交林的有效拦蓄能力最弱，为16.47 t/hm2。即华北落叶松-白桦-黑桦混交林枯落物的水土保持能力最强，森林较健康，山杨-黑桦-蒙古栎混交林最弱，健康状况有待改善。
Abstract:
Litter is the second active layer of the forest hydrological effects, which is of great significance in the regulation of forest hydrology. A preliminary study of hydrological effects of litter layer was carried out in six kinds of typical and natural forest stands in the Mulan forestry administration. The result shows: (1) The litter total storage capacity of Larix principic-rupprechtⅡ-B. platyphylla-B. davurica is the biggest and up to 30.47 t/hm2, meanwhile it has the highest maximum water holding capacity (63.57 t/hm2);the maximum water holding rate of B. platyphylla-B. davurica is the biggest and up to 257.80%; (2) Without decomposition and semi-decomposition litter reached both saturation in 12 h, water holding capacity and soaking time demonstrated significant Logarithmic relationship (Q=aln (t)+b);water absorption rate of undecomposed and semi-decomposed litter are both faster at the first hour, then the rate of decline gradually slowed down after 6 h, the relationship of absorption rate and immersion time showed power function (V=ktn); (3) The modified interception amount of Larix principic-rupprechtⅡ-B. platyphylla-B. davurica is the strongest and up to 48.60 t/hm2, while Populus davidian-B. davurica-Quercus mongolica is the worst and up to 16.47 t/hm2. It shows that the soil and water conservation capacity of Larix principic-rupprechtⅡ-B. platyphylla-B. davurica is the strongest, which means the forest is healthy. However, Populus davidian-B. davurica-Quercus mongolica has the weakest capacity, which means the health need to be improved.

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备注/Memo

收稿日期:2011-1-19;改回日期:2011-3-23。
基金项目:林业公益性行业科研专项课题“冀北山区典型森林生态系统健康维护与经营技术研究”（200804022F）
作者简介:李军（1977- ），男，河北围场县人，林业工程师，在职硕士研究生，主要从事林业经营管理工作。E-mail：lijun770207@163.com
通讯作者:田超（1985- ），河北涞水县人，在读硕士，主要从事水土保持、森林生态方面研究。E-mail：tianchao9996@163.com

更新日期/Last Update: 1900-01-01