不同林龄油松人工林枯枝落叶层持水性及养分含量

逯军峰; 王辉; 曹靖; 袁宏波

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不同林龄油松人工林枯枝落叶层持水性及养分含量

逯军峰 , 王辉 , 曹靖 , 袁宏波

文章导航 > 浙江农林大学学报 > 2007 > 24(3): 319-325

逯军峰, 王辉, 曹靖, 袁宏波. 不同林龄油松人工林枯枝落叶层持水性及养分含量[J]. 浙江农林大学学报, 2007, 24(3): 319-325.

引用本文:

逯军峰, 王辉, 曹靖, 袁宏波. 不同林龄油松人工林枯枝落叶层持水性及养分含量[J]. 浙江农林大学学报, 2007, 24(3): 319-325.

LUJun-feng, WANG Hui, CAO Jing, YUANHong-bo. Water holding capacity and nutrients of litter layers in a Pinus tabulaeformis plantation at different ages in Mount Xiaolong of Gansu[J]. Journal of Zhejiang A&F University, 2007, 24(3): 319-325.

Citation:

LUJun-feng, WANG Hui, CAO Jing, YUANHong-bo. Water holding capacity and nutrients of litter layers in a Pinus tabulaeformis plantation at different ages in Mount Xiaolong of Gansu[J]. Journal of Zhejiang A&F University, 2007, 24(3): 319-325.

不同林龄油松人工林枯枝落叶层持水性及养分含量

逯军峰¹,
王辉^1, ,,
曹靖²,
袁宏波¹

1.
甘肃农业大学林学院,甘肃兰州730070;
2.
兰州大学干旱与草地农业生态教育部重点实验室,甘肃兰州730000

基金项目:

国家重点基础研究发展计划(973计划)项目(2002CB111505);甘肃省自然科学基金资助项目(3ZS051-A25-019)

详细信息

作者简介: 逯军峰,硕士研究生,从事水土保持与荒漠化防治研究。

通信作者: 王辉,教授,博士,从事荒漠化防治与恢复生态学等研究。

中图分类号: S714.8

Water holding capacity and nutrients of litter layers in a Pinus tabulaeformis plantation at different ages in Mount Xiaolong of Gansu

1.
College of Forestry, Gansu Agricultural University, Lanzhou 730070, Gansu, China;
2.
Key Laboratory of Arid and Grassland Agroecology, Lanzhou University, Lanzhou 730000, Gansu, China

Funds:

国家重点基础研究发展计划(973计划)项目(2002CB111505);甘肃省自然科学基金资助项目(3ZS051-A25-019)

摘要: 对小陇山林区不同林龄油松Pinus tabulaeformis人工林枯落物现存量、持水性及主要营养元素储存量的测定分析结果表明:不同林龄油松人工林枯落物现存量为12.23～ 18.78 thm- 2,现存量均高于对照锐齿栎Quercus aliena var. acuteserrata林,其中以23年生油松林的枯落物现存量最大,为18.78 thm- 2;不同林龄油松人工林枯枝落叶层的氮、磷、钾的质量分数分别为8.56～ 11.40, 0.45～ 0.63和0.74～ 1.23 gkg- 1, 30年生油松林的氮、磷最高,而钾最低;油松人工林枯落物的氮、磷质量分数均低于锐齿栎林,而钾高于锐齿栎林,油松人工林枯落物的全氮、全磷和全钾平均储存量分别为158.36, 8.44和15.92 kghm- 2,全磷的储存量略小于对照锐齿栎林,而全氮和全钾的储存量分别是锐齿栎林1.31和2.99倍。不同林龄油松人工林枯落物的自然含水率与饱和持水率均随林龄增加呈递增趋势,且具有较好的拟合关系,两者分别为38.98%～ 59.22%和246.95%～ 300.33%, 30年生油松林的自然含水率与饱和持水率分别达到59.22%和300.33%;油松人工林自然含水率的平均值略小于锐齿栎林,而饱和持水率却低于锐齿栎林(P 0.001)。图6表2参21
- 土壤学 /
- 油松 /
- 人工林 /
- 枯枝落叶层 /
- 持水性能
Abstract: The standing stock, nutrient content, and water holding capacity from litter layers of a Pinus tabulaeformis(oil pine)plantation at different ages(7, 10, 16, 23 and 30 years old) were compared with the control(Quercus aliena var. acuteserrata secondary forest). Results showed that the plantation standing stock at different ages ranged from 12.23 to 18.78 thm- 2 and was higher than that of the control. Macronutrients in the litter layer of the plantation at different ages varied between 8.56-1.40 gkg- 1 for N, 0.45- 0.63 gkg- 1 for P, and 0.74- 1.23 gkg- 1 for K. In forest litter of the P. tabulaeformis plantation, N and P were less than thatof the control, but K was higher. The average nutrient content in forest litter of the P. tabulaeformis plantationwas 158.36 kghm- 2 forN, 8.44 kghm- 2 for P, and 15.92 kghm- 2 forK. P in the plantationwas a little less than the control; but N and K were 1.31 and 2.99 times greater, respectively. In both P. tabulaeformis and Q. aliena var. acuteserrata plantations, water content, ranging from 38.98% to 59.22%,and saturated water-holding capacity, ranging from 246.95% to 300.33%, increased with age, and both were maximum in the 30-year-old plantation. The average water content of the plantation was slightly less than the secondary forest, but the saturated water-holding of the plantation was lower.[Ch, 6 fig. 2 tab. 21 ref.]
- pedology /
- Pinus tabulaeformis /
- plantation /
- litter layer /
- water holding capacity

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不同林龄油松人工林枯枝落叶层持水性及养分含量

1. 甘肃农业大学林学院,甘肃兰州730070;

2. 兰州大学干旱与草地农业生态教育部重点实验室,甘肃兰州730000

基金项目:

国家重点基础研究发展计划(973计划)项目(2002CB111505);甘肃省自然科学基金资助项目(3ZS051-A25-019)

作者简介:
逯军峰,硕士研究生,从事水土保持与荒漠化防治研究。

通信作者: 王辉,教授,博士,从事荒漠化防治与恢复生态学等研究。

收稿日期: 2006-10-12
修回日期: 2007-01-04
刊出日期: 2007-06-20

中图分类号: S714.8

关键词:

摘要: 对小陇山林区不同林龄油松Pinus tabulaeformis人工林枯落物现存量、持水性及主要营养元素储存量的测定分析结果表明:不同林龄油松人工林枯落物现存量为12.23～ 18.78 thm- 2,现存量均高于对照锐齿栎Quercus aliena var. acuteserrata林,其中以23年生油松林的枯落物现存量最大,为18.78 thm- 2;不同林龄油松人工林枯枝落叶层的氮、磷、钾的质量分数分别为8.56～ 11.40, 0.45～ 0.63和0.74～ 1.23 gkg- 1, 30年生油松林的氮、磷最高,而钾最低;油松人工林枯落物的氮、磷质量分数均低于锐齿栎林,而钾高于锐齿栎林,油松人工林枯落物的全氮、全磷和全钾平均储存量分别为158.36, 8.44和15.92 kghm- 2,全磷的储存量略小于对照锐齿栎林,而全氮和全钾的储存量分别是锐齿栎林1.31和2.99倍。不同林龄油松人工林枯落物的自然含水率与饱和持水率均随林龄增加呈递增趋势,且具有较好的拟合关系,两者分别为38.98%～ 59.22%和246.95%～ 300.33%, 30年生油松林的自然含水率与饱和持水率分别达到59.22%和300.33%;油松人工林自然含水率的平均值略小于锐齿栎林,而饱和持水率却低于锐齿栎林(P 0.001)。图6表2参21

English Abstract

Water holding capacity and nutrients of litter layers in a Pinus tabulaeformis plantation at different ages in Mount Xiaolong of Gansu

1. College of Forestry, Gansu Agricultural University, Lanzhou 730070, Gansu, China;

2. Key Laboratory of Arid and Grassland Agroecology, Lanzhou University, Lanzhou 730000, Gansu, China

Funds:

国家重点基础研究发展计划(973计划)项目(2002CB111505);甘肃省自然科学基金资助项目(3ZS051-A25-019)

Received Date: 2006-10-12
Rev Recd Date: 2007-01-04
Publish Date: 2007-06-20

Keywords:

Abstract: The standing stock, nutrient content, and water holding capacity from litter layers of a Pinus tabulaeformis(oil pine)plantation at different ages(7, 10, 16, 23 and 30 years old) were compared with the control(Quercus aliena var. acuteserrata secondary forest). Results showed that the plantation standing stock at different ages ranged from 12.23 to 18.78 thm- 2 and was higher than that of the control. Macronutrients in the litter layer of the plantation at different ages varied between 8.56-1.40 gkg- 1 for N, 0.45- 0.63 gkg- 1 for P, and 0.74- 1.23 gkg- 1 for K. In forest litter of the P. tabulaeformis plantation, N and P were less than thatof the control, but K was higher. The average nutrient content in forest litter of the P. tabulaeformis plantationwas 158.36 kghm- 2 forN, 8.44 kghm- 2 for P, and 15.92 kghm- 2 forK. P in the plantationwas a little less than the control; but N and K were 1.31 and 2.99 times greater, respectively. In both P. tabulaeformis and Q. aliena var. acuteserrata plantations, water content, ranging from 38.98% to 59.22%,and saturated water-holding capacity, ranging from 246.95% to 300.33%, increased with age, and both were maximum in the 30-year-old plantation. The average water content of the plantation was slightly less than the secondary forest, but the saturated water-holding of the plantation was lower.[Ch, 6 fig. 2 tab. 21 ref.]

逯军峰, 王辉, 曹靖, 袁宏波. 不同林龄油松人工林枯枝落叶层持水性及养分含量[J]. 浙江农林大学学报, 2007, 24(3): 319-325.

引用本文:

逯军峰, 王辉, 曹靖, 袁宏波. 不同林龄油松人工林枯枝落叶层持水性及养分含量[J]. 浙江农林大学学报, 2007, 24(3): 319-325.