Characteristics of Soil Seed Bank of Pinus Tabulaef ormis Plantation Zi wuling Mountains

XIONG Chu-qiao; CHENG Ji-min; WAN Hui-e

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Characteristics of Soil Seed Bank of Pinus Tabulaef ormis Plantation Zi wuling Mountains

- Characteristics of Soil Seed Bank of Pinus Tabulaef ormis Plantation Zi wuling Mountains
- Bulletin of Soiland Water Conservation Vol. 28, Issue 4, Pages: 42-45(2009)
- 作者机构：
  
  1. 西北农林科技大学动物科技学院, 陕西杨凌,712100
  2. 中国科学院水利部水土保持研究所, 陕西杨凌,712100
- 作者简介：
- 基金信息：
- DOI：
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- Published：2009
- 稿件说明：
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XIONG Chu-qiao, CHENG Ji-min, WAN Hui-e. Characteristics of Soil Seed Bank of Pinus Tabulaef ormis Plantation Zi wuling Mountains[J]. Bulletin of Soiland Water Conservation, 2009, 28(4): 42-45.
DOI：

XIONG Chu-qiao, CHENG Ji-min, WAN Hui-e. Characteristics of Soil Seed Bank of Pinus Tabulaef ormis Plantation Zi wuling Mountains[J]. Bulletin of Soiland Water Conservation, 2009, 28(4): 42-45. DOI：

摘要

采用野外调查取样和室内观测试验相结合的方法，研究了子午岭人工油松林土壤种子库的物种组成、密度、垂直分布等特征。结果表明:(1)土壤种子库储量密度平均为5711粒/m

，最大密度是9537粒/m

，最小密度是3563粒/m

。(2)土壤种子库的种子的垂直分布主要集中在0-2.5cm，2.5-5cm和5-7.5cm这3个层次，占75.38%∼79.32%，枯枝落叶层和7.5-10cm层分布较少，占20.68%∼24.62%。(3)土壤种子库物种组成主要为灌木和草本两个种类，无乔木植物，多年生草本在物种数和种子数上占据明显优势。

Abstract

Field survey and laboratory observation experiment were conducted to study the character of soil seed bank for Pinus Tabulaef ormis Plantation in wuling Mountains，such as species composition，density，and the vertical distribution of species. Results indicated that(1) the average seed storage of seed banks was 5 711 grains/ m2 and the minimum and the maximum storage were 3 563 grains/ m2 and 9 537 grains/ m2

respectively. (2) Vertical distribution of the soil seed bank mainly concentrated in the three levels of 0-2.5

2.5-5

and 5-7.5 cm

accounting for 75.38%-79. 32%

and for the forest flooring and the 7.5-10 cm level

the distribution accountedfor 20.68%-24.62%.(3) Species composition of the soil seed bank for the two types of shrubs and herbaceous

non tree plant

the perennial herb occupies the obvious superiority in the species number and the seed number.

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