摘要
以海坛岛为例,运用Penman综合法计算研究区林地生态需水定额,并测算生态需水量.结果表明,该地区林地年生态需水量为0.3004-0.5004亿m3,生态需水定额为374-623 mm.该结果为分析海坛岛林地生态缺水状况及可持续管理林地生态系统提供参考.
Ecological water requirement is focused on by many researchers in the circumstance of long term water resources deficiency, especially in non-regional vegetation type of forest land. In this paper, Penman method is used to calculate ecological water quota and ecological water requirement in the investigated area of Haitan Island. The result shows that the ecological water requirement is 0.03004 -0.05004 billions ms , and ecological water quota is between 374 and 623 mm. By this calculation, the paper can provide scientific reference for the status of ecological water deficiency in Haitan Island and sustainable management in forest land ecological system.
出处
《福建农林大学学报（自然科学版）》
CSCD
北大核心
2007年第6期633-637,共5页
Journal of Fujian Agriculture and Forestry University:Natural Science Edition
关键词
海坛岛
林地
生态需水定额
生态需水量
Haitan Island
forest land
ecological water quota
ecological water requirement
