Structure and function of ever green broad-leaved environmental protection forests created in industrial area

工业区常绿阔叶环保林的结构与功能

基本信息

批准号：
13680639
负责人：
HARADA Hiroshi
金额：
$ 2.56万
依托单位：
Yokohama National University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2001
资助国家：
日本
起止时间：
2001 至 2003
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-13680639/
关键词：
environmental protection forest structure and function index of naturalness litterfall decomposition of fallen leaves stem flow soot and dust soil animal 環境保全機能林内雨

项目摘要

1.The annual total litterfall averaged at 7.6ton/ha (5.7-8.5ton/ha). Fallen leaves formed the greatest portion of the litterfall ; 63-86% at pot A, and 73-86% at plot B.Seasonal changes in litterfall displayed the same characteristics as a natural evergreen broad-leaved forest ; showing a drastic increase in May, with high litterfall continuing through late Summer until September.2.Litter accumulation mass and litterfall mass was measured at Higashi-Ohgishima and Atami to derive average annual decomposition rates, which were 64% and 84%, respectively. The reasons for faster decomposition at Atami are assumed to be that soil animals were rich and that litter consisted mainly of fast-decomposing Castanopsis cuspidate var. sieboldii, among other things.3.The amount of soot and dust contained in canopy throughfall was 1.2-2.7 times the amount in rainwater. The amount of soot and dust falling to the floor of the environmental protection forest was greater in the summer and less in the winter, corresponding to differences in the amount of rainfall.4.The sequestered amount of carbon dioxide per 100 m^2 has been increasing since 1995. The amount was greatest in the plot that had never been thinned since 2004 at 1652 kg-CO2.5.The present of supply sources of soil animals in vicinity is considered to have contributed to these hig index values. The index of naturalness was higher at the bottom of the mound, where more litter accumulation exists, compared to the upper portion even in the same environmental protection forest.

1.年度垃圾降落的平均为7.6吨/公顷（5.7-8.5吨/公顷）。倒下的叶子构成了垃圾的最大部分。锅A的63-86％，地块B.垃圾的季节变化的73-86％表现出与天然常见的宽叶森林相同的特征。 5月份显示出大幅度的增加，较高的垃圾降落一直持续到夏末至9月。2。在Higashi-Ohgishima和Atami测量了插座积累质量和乱落量，以得出平均年平均分解率，分别为64％和84％。假定阿塔米（Atami）更快分解的原因是土壤动物富含，并且垃圾主要包括快速分解的castanopsis cusspiated var。 Sieboldii，除其他外观。3。树冠遍布中含有的烟灰和灰尘的数量是雨水中量的1.2-2.7倍。夏季森林落在环境保护森林地面上的烟尘和灰尘的数量在冬季较大，与降雨量的差异相对应。4。自1995年以来，每100 m^2碳二氧化碳量的剩余量一直在增加。自2004年以来，这些动物在1652 kg-co的供应中从未如此稀释的土地上最大。值。与上部相比，即使在同一环境保护林中，自然性指数在土墩的底部较高，那里存在更多的垃圾积累。