Afforestation Survival Rate and Juvenile Growth Characteristics of Platycladus Orientalis on Arid Southern Mountain Slopes

BO Ying-shen; WEI Ling-yun; ZHANG Shun-zheng; CHENG Yu-feng

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Afforestation Survival Rate and Juvenile Growth Characteristics of Platycladus Orientalis on Arid Southern Mountain Slopes

- Afforestation Survival Rate and Juvenile Growth Characteristics of Platycladus Orientalis on Arid Southern Mountain Slopes
- Bulletin of Soiland Water Conservation Vol. 24, Issue 1, Pages: 21-24(2005)
- 作者机构：
  
  西北农林科技大学林学院, 陕西杨凌,712100
- 作者简介：
- 基金信息：
- DOI：
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- Published：2005
- 稿件说明：
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BO Ying-shen, WEI Ling-yun, ZHANG Shun-zheng, et al. Afforestation Survival Rate and Juvenile Growth Characteristics of Platycladus Orientalis on Arid Southern Mountain Slopes[J]. Bulletin of Soiland Water Conservation, 2005, 24(1): 21-24.
DOI：

BO Ying-shen, WEI Ling-yun, ZHANG Shun-zheng, et al. Afforestation Survival Rate and Juvenile Growth Characteristics of Platycladus Orientalis on Arid Southern Mountain Slopes[J]. Bulletin of Soiland Water Conservation, 2005, 24(1): 21-24. DOI：

摘要

侧柏在干旱阳坡植苗造林的最适期为春季气温稳定在10℃-17℃之间

提前或推后栽植均会降低造林成活率。幼林年生长有一个低谷期和2个峰期

其分界在7月上、中旬

且前期生长量大于后期;生长期降雨对生长有促进作用

高温对生长有抑制作用;侧柏虽耐干旱

但对水分需要量大于热量;对降雨反应敏感

反应速度约10d时间。

Abstract

Spring is the most suitable season for Platycladus orientalis growth on arid southern mountain slopes. The ideal temperature range is from 10℃ to 17℃. If the species is planted earlier or later than the optimal season

the afforestation survival rate is lowered. Annual growth of juvenile trees exhibits one slow stage and two fast stages. Stage boundaries are the first 10-day period and the mid-summer

in this case mid-July

with growth greater in the earlier stage than in the latter stages. Rainfall may simulate growth but high temperatures restrain growth. That is

although the Platycladus orientalis can endure aridity

growth is promoted more by moisture than optimal temperature. The species responds sensitively to rainfall

usually over 10 days.

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