当前位置: 首页 > 文章 > 油松、刺槐单木与林分水平耗水量的尺度转换 北京林业大学学报 2001,23 (4) 1-5
Position: Home > Articles > Sapwood area calculation and water use scaling up from individual trees to stands of Chinese pine and black locust. Journal of Beijing Forestry University 2001,23 (4) 1-5

油松、刺槐单木与林分水平耗水量的尺度转换

作  者:
马李一;孙鹏森;马履一
单  位:
北京中国林业科学研究院生态环境与保护研究所;大理;云南大理东方木业公司;北京林业大学资源与环境学院;北京
关键词:
边材面积;纯量;空间尺度扩大;液流通量;耗水量
摘  要:
该文在单木液流测定的基础上 ,采用边材面积作为纯量 ,对京北山区水源保护林的主要树种油松、刺槐林进行由单木到林分耗水的推算 .结果发现 ,两树种边材面积与胸径之间均存在较高的相关性 ,两者之间的关系可以用幂模型得到很好的拟合 .通过实测标准地的胸径分布 ,可以推算出林地边材面积的分布 .利用热脉冲技术测定单木液流通量 ,实时推算林分的实际耗水量
译  名:
Sapwood area calculation and water use scaling up from individual trees to stands of Chinese pine and black locust.
作  者:
Ma Liyi;Sun Pengsen;Ma Lüyi. Dali Oriental Wood Industrial Co.,Ltd.,Yunnan 671000,P.R.China.
关键词:
sapwood area, scalar, spatial scaling up, sap flux density, water use
摘  要:
In this article, sapwood area is used as a scalar to extrapolate the stand water use from whole tree water use measured by heat pulse velocity recorder(HPVR). The tree species are Chinese pine (\%Pinus tabulaeformis\%) and black locust (\%Robinia pseudoacacia\%). A significant correlation between sapwood area and diameter at breast height (DBH) was found. The prediction model is well fitted by power model. On the basis of the prediction model, sapwood area can be calcalated by DBH. The sap flow density can be used to extrapolate stand water use by a series of mathematical models.

相似文章

计量
文章访问数: 17
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊