嫩江中下游小黑杨樟子松林分水分生产率研究  

Water Productivity of Populus simonii×nigra and Pinus sylvestris var.mongolica Stand in Middle and Lower Reaches of Nenjiang River

作　　者：韩纯君[1] 李树森[2] 俞冬兴[2] 

机构地区：[1]东北林业大学 [2]黑龙江省森林与环境科学研究院

出　　处：《防护林科技》2006年第6期41-41,44,共2页Protection Forest Science and Technology

摘　　要：较系统地论述了嫩江流域中下游地区小黑杨、樟子松林分的水分生产率,结果表明:小黑杨林分的水分生产率为1.113,较全国农业平均水分生产率(0.8)相对提高39.13%;樟子松林分的水分生产率为1.441,比小黑杨林分的水分生产率高29.47%,说明樟子松林分是嫩江中下游地区较好的抗旱节水型林分,应在该地区适当增加樟子松林分的比例。Water Productivity of Populus simonii × nigra and Pinus sylvestris var. mongolica stand in Middle and Lower Reaches of Nenjiang River was discussed systematically. The results showed that water productivity of Populus simonii × nigra was 1.113 and increased 39. 13% compared with the national mean agricultural water productivity. The water productivity of Pinus sylvestris var. mongolica was 1. 441 and was 29.47% higher than Populus simonii × nigra. It showed that Pinus sylvestris var. mongolica stand was a kind of better drought-resistant and water-saving stand . The ratio of Pinus sylvestris var. mongolica stand should be added properly.

关 键 词：嫩江中下游 小黑杨 樟子松 林分 水分生产率 

分 类 号：S791.253[农业科学—林木遗传育种]