[1]江浩,何冬梅,季永华,等.杨农复合经营系统不同土壤层养分分布研究[J].江苏林业科技,2016,43(01):10-14.[doi:10.3969/j.issn.1001-7380.2016.01.003]
 JIANG Hao,HE Dong-mei,JI Yong-hua,et al.Depth distribution difference of soil nutrient elements between poplar forest and poplar-crop intercropping pattern[J].Journal of Jiangsu Forestry Science &Technology,2016,43(01):10-14.[doi:10.3969/j.issn.1001-7380.2016.01.003]
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杨农复合经营系统不同土壤层养分分布研究()
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《江苏林业科技》[ISSN:1001-7380/CN:32-1236/S]

卷:
第43卷
期数:
2016年01期
页码:
10-14
栏目:
试验研究
出版日期:
2016-02-28

文章信息/Info

Title:
Depth distribution difference of soil nutrient elements between poplar forest and poplar-crop intercropping pattern
文章编号:
1001-7380(2016)01-0010-05
作者:
江浩 何冬梅 季永华王磊* 王火 张亚楠
江苏省林业科学研究院,江苏南京211153
Author(s):
JIANG Hao HE Dong-mei JI Yong-hua WANG Lei*WANG Huo ZHANG Ya-nan
Jiangsu Academy of Forestry, Nanjing 211153, China
关键词:
杨树复合生态系统土壤有机碳养分
Keywords:
Poplar Agroforestry ecosystem SoilOrganic carbonNutrient element
分类号:
S792.11;S152.4+5
DOI:
10.3969/j.issn.1001-7380.2016.01.003
文献标志码:
A
摘要:
以杨树纯林和杨农复合林2种生态系统为研究对象,通过对土壤有机碳、氮、磷、钾等营养元素含量的测定,初步探讨土壤养分的分布特征。结果表明,杨树纯林和杨农复合生态系统中有机碳、全氮和有效磷含量随着土壤深度增加均呈现递减的趋势;有效钾含量在杨树纯林中随土壤深度的增加而降低,在杨农复合系统中表现出先增大后减小的倒“U”型变化趋势。土壤有机碳、氮、有效磷、有效钾含量范围分别为(6.34±0.22)~(16.88±1.07) g/kg,(0.57±0.09)~(1.35±0.17) g/kg,(4.76±0.44)~(13.88±1.01) mg/kg和(52.8±3.99)~(176.1±8.45) mg/kg。由于间作植物的影响,N,P,K和有机碳的含量在杨树纯林和杨农复合生态系统土壤层中表现出了一定的差异。杨农复合生态系统会在一定程度上改良土壤,增加土壤有机碳和养分元素的含量。
Abstract:
The organic carbon and nutrient elements (N, P, K)of different soil depth in poplar and poplar-crop intercropping patterns were studied in the north of Jiangsu Province The results showed that the contents of soil organic carbon, total nitrogen, available phosphorus were decreased with the depth of soil. The variation trend of available potassium featured with inverted U-shape. The variation range of soil organic carbon, total nitrogen, available phosphorus and available potassium were from (6.34±0.22)~(16.88±1.07) g/kg, (0.57±0.09)~(1.35±0.17) g/kg, (4.76±0.44)~(13.88±1.01) mg/kg and (52.8±3.99)~(176.1±8.45) mg/kg, respectively. There were differences between the poplar and poplar-crop intercropping patterns in soil organic carbon and nutrient elements under the effects of crops, suggesting the poplar-crop agroforestry ecosystem may improve soil organic carbon and nutrient elements.

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备注/Memo

备注/Memo:
收稿日期:2016-01-20;修回日期:2016-01-27
基金项目:江苏省林业三新工程项目“江苏杨树农田林网更新改造技术集成与示范推广”(LYSX[2015]04);江苏省属公益类科研院所能力提升项目“江苏杨树农田林网更新改造及效益监测评价技术”(BM2015021); 江苏省林业科学研究院青年基金项目“杨树纯林及杨农复合生态系统碳汇功能研究”(JAF-2012-03)
作者简介:江浩(1983- ),男,江苏扬州人,助理研究员,博士,从事森林生态系统研究。
*通信作者:王磊(1980- ),男,江苏宜兴人,副研究员,博士,从事生态系统研究。E-mail:wl.stone@163.com。
更新日期/Last Update: 2016-04-07