黑龙江省东部山区谷地红皮云杉生态学与生物学特性

系统研究了黑龙江省东部山区谷地红皮云杉的高生长量,径生长量,树高生长与积温、降水、日照时数的关系,土壤含水率对种子发芽的影响及红皮云杉的更新。结果表明:云杉5月中旬开始高生长,6月中旬达到高峰,7月中旬停止高生长;胸径生长一般在6月中旬,7月上旬进入速生期,8月初生长开始减慢,并于中旬停止生长。云杉的高生长与积温紧密相关;土壤含水率与苗木高生长相关密切。塔河、乌伊岭、汤旺河、红星的云杉为进展种群,而五营和带岭的云杉为衰退种群。

Ecological and Biological Characteristics of Spruce in Low-lying Land in Eastern Mountain Area of Heilongjiang Province

An investigation was conducted to systematically study the height growth, diameter growth, the relationships between height growth and accumulated temperature, precipitation, sunshine hours, the effects of soil moisture on seed germination, and the regeneration of spruce (Picea koraiensis)in low-lying land in Eastern Mountain Areas of Heilongjiang Province. Results show that the height growth of spruce begins in mid-May and reaches a peak in mid-June, and the height growth stops in mid-July. The diameter growth starts in mid-June and goes to a rapid growing phase in early July, and diameter growth becomes slowly in early August and stops in mid-August. There are closely relationships between height growth and accumulated temperature as well as between soil moisture and seedling height growth. The spruce populations in Tahe, Wuyiling, Tangwanghe and Hongxing Forestry Bureaus are progressive populations, however, those in Wuying and Dailing Forestry Bureaus are decline populations.