摘要
我国干旱地区,由于气候条件、自然地理环境差,严重限制了林木生长,其中水分因子对林木生长的影响尤其明显。因此研究供水对杨树人工林生长的调控作用和合理灌溉量,对西北地区杨树人工林速生丰产具有十分重要的指导作用,可为西北干旱区对水资源的开发利用及生态和社会效益的的估提供科学依据。
From the point of water capacity equilibrium view, the study approached the regulation and control effects of artificial water supply on growing mechanism of Populus × Popularis Chon-Lin, and moisture and heat status of soil under different water supply conditions. The results revealed the relationship between water supply and conditions of moisture and heat for Populus × Popularis Chon-Lin plantation growth. During this experiment conducted from years 1984 to 1990, soil elements of moisture and heat, ground water level dynamics, as well as growth increment of forest trees had been observed year by year at regular intervals. The results show that irrigating the artificial plantation of Populus × Popularis Chob-Lin in the dry region of Northwest, the ground water level within plantation growth period could be raised 0.5 to 1.54m, and the status of soil moisture and temperature could be improved effectively.
出处
《林业科学》
EI
CAS
CSCD
北大核心
1992年第6期555-560,共6页
Scientia Silvae Sinicae
基金
"七.五"国家攻关课题"干旱半干旱区造林与水分平衡的关系"专题
关键词
杨树
灌溉
生长
调控
Dry region of Northwest
Water supply
Soil water
Soil temperature
Regulation and control effects.
