[1]姚瑞玲,丁贵杰*,王胤.不同密度马尾松人工林凋落物及养分归还量的年变化特征[J].南京林业大学学报(自然科学版),2006,30(05):083-86.[doi:10.3969/j.jssn.1000-2006.2006.05.020]
 YAO Rui-ling,DING Gui-jie* : WANG Yin.The Annual Variation Feature of Litter and Nutrient Restitution in Different Density Pinus massoniana Plantation[J].Journal of Nanjing Forestry University(Natural Science Edition),2006,30(05):083-86.[doi:10.3969/j.jssn.1000-2006.2006.05.020]
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不同密度马尾松人工林凋落物及养分归还量的年变化特征
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《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

卷:
30
期数:
2006年05期
页码:
083-86
栏目:
研究论文
出版日期:
2006-05-20

文章信息/Info

Title:
The Annual Variation Feature of Litter and Nutrient Restitution in Different Density Pinus massoniana Plantation
文章编号:
1000-2006(2006)05-0083-04
作者:
姚瑞玲12丁贵杰1*王胤1
1. 贵州大学造林生态研究所, 贵州 贵阳 550025; 2. 南京林业大学森林资源与环境学院, 江苏 南京 210037
Author(s):
YAO Rui-ling12 DING Gui-jie1* : WANG Yin1
1. College of Forest Guizhou University, Guiyang 550025, China; 2. College of Forest Resources and Environment Nanjing Forestry University, Nanjing 210037. China
关键词:
马尾松 人工林 枯落物 养分归还 年变化
Keywords:
Pinus massoniana Plantation Litterfall Nutrient-restitution Annual variation
分类号:
S718
DOI:
10.3969/j.jssn.1000-2006.2006.05.020
文献标志码:
A
摘要:
<正>针对目前林农复合经营中应用的宽窄行配置模式,研究其对水稻产量及其品质的影响。结果表明:杨稻间作前3年对稻穗生物量、产量、谷草比、蛋白质、直链淀粉含量的影响不显著,对千粒重、单穗重、穗长等指标有显著影响。间作5年将使得水稻的千粒重有所降低,蛋白质、直链淀粉含量则有所增加。不同配置模式对水稻产量的影响与杨树的树龄有很大的关系,为减少遮荫对树冠的影响,应当多采用宽行配置模式。
Abstract:
Taking the measure of many sampling plots’ collector which was periodical, accurate and fix-spotted,this paper deals with the annual variation feature of litter and nutrient restitution in three kinds of density stand from 14-year-old Pinus massoniana. The results showed that with the increasing of density, the annual amount of litterfall was 2 74S. 821~4 911. 179 kg/(hm2? a) respectively. The annual restitution amount of N,P,K,Ca and Mg in litter was 15.558~27.374 kg/(hm2? a), 1.437~2.900 kg/(hm2?a), 12.393~2,5. 365 kg/(hm2? a),10. 850~22. 056 kg/(hm2? a) and 2. 487~3. 278 kg/(hm2? a). The seasonal dynamics of forest litter and nutrient restitution was in the order of autumn,winter, summer,spring. Except for Mg, the bigger the density of plantation was, the more the amount of seasonal litterfall and nutrient restitution was.

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更新日期/Last Update: 2013-05-20