期刊论文

Seasonal changes of litter water-holding characteristics under different secondary forests in subtropical area

中文

生态学报

1000-0933

2021

41

8

3190-3200

10.5846/stxb201907161500

国家自然科学基金项目（31470629）；

本校为第一机构

为了解亚热带不同演替阶段次生林地的凋落物持水特性规律,选取湖南大山冲森林公园保存完好的三种亚热带典型次生林地,按两月一次采集新近的凋落物并采用水浸泡法测定凋落物持水量、持水率和吸水速率,对比分析不同森林类型凋落物持水性差异及其与凋落物碳氮凋落量的关系。结果表明:(1)三种次生林地凋落物量及组成均表现出特有的变化规律。针叶林和常绿阔叶林凋落物量以夏季5—9月最大,落叶阔叶林凋落物则以春、秋两个季节最大;(2)三种次生林地凋落物的饱和持水量、半饱和时间以及与水亲和力均呈现显著季节性变化特征。针叶林凋落物饱和持水量在5—7月达到最高为(59.68±2.91) g/m~2,常绿阔叶林凋...

In order to understand litter water-holding characteristics in secondary forests under different succession stages, three typically subtropical secondary forests were selected in Dashanchong Forest Park in Hunan Province. New litters were collected in every two months and measured its water holding capacity, water holding rate and water absorption rate by water soaking method. Then, the water holding capacity of litters in different forest types were compared. The relationships were analyzed between water holding capacity and carbon and nitroge...