Foraging Behaviors and Growth Responses of Pinus massoniana Seedlings in the Heterogeneous Nutrient Environment with Different Nutrient Patches

MA Xue-hong; ZHOU Zhi-chun; ZHANG Yi; JIN Guo-qing

Volume 23 Issue 5

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Foraging Behaviors and Growth Responses of Pinus massoniana Seedlings in the Heterogeneous Nutrient Environment with Different Nutrient Patches

1.
Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang 311400, Zhejiang, China

Received Date: 2009-03-26

Abstract

A pot experiment consisting of three different heterogenerous nutrient environments was designed, with homogeneous nutrient environment as control, to study the differences of foraging behavior of Pinus massoniana to N and P nutrient patches. The results showed that P. massoniana exhibited greater seedling growth, more biomass accumulation in P and whole nutrient heterogeneous environment, while it responsed unsensitively to nutrient heterogeneous environment. The root physiological and morphological plasticity played important roles when P. massoniana absorbed nutrient in P patch with poor mobility. Moreover, in P patch, root growth exhibited some characteristics, such as root proliferation, greater root scale, higher precision and sensitivity, improvement of root N and P absorption efficiency. However, its root scale, precision and sensitivity were lower in N patch, while root did not need to proliferate to acquire N with rich mobility, and N and P absorption efficiency were also low, which could illuminate that root physiological and morphological plasticity had no obvious effects on acquiring nutrients in N-enriched patch. The foraging behavior of P. massoniana in whole nutrient patch was similar with in P heterogeneous nutrient environment.
- Pinus massoniana,
- heterogeneous nutrient environment,
- patchy nutrient,
- foraging behavior,
- growth response

References

[1]	Hodge A. The plastic plant: root responses to heterogeneous supplies of nutrients[J]. New Phytologist, 2004,162: 9-24
[2]	王曙光,侯彦林. 土壤中氮营养斑研究进展[J]. 干旱地区农业研究,2003, 21(2): 45-49
[3]	王庆成,程云环. 土壤养分空间异质性与植物觅养的觅食反应[J]. 应用生态学报, 2004,15(6):1063-1068
[4]	George E, Bettina S, Christoph S, et al. Response of Picea, Pinus and Pseudotsuga roots to heterogeneous nutrient distribution in soil[J]. Tree Physiology,1997, 17: 39-45
[5]	Huante P, Rincón E, Chapin F S. Foraging for nutrients, responses to changes in light, and competition in tropical deciduous tree seedlings[J]. Oecologia, 1998,117:209-216
[6]	Philipson J J, Coutts M P. The influence of mineral nutrition on the root development of trees Ⅱ. The effect of specific nutrient elements on the growth of individual roots of Sitka spruce[J]. Journal Experimental Botany,1977, 28:864-871
[7]	Drew M C, Saker L R, Ashley T W. Nutrient supply and the growth of the seminal root system in barley[J]. Journal Experimental Botany, 1973,24:1189-2002
[8]	Drew M C. Comparison of the effect of a localized supply of phosphate, nitrate, ammonium and potassium on the growth of the seminal root system, and the shoot, in barley[J]. New Phytologist,1975, 75:479-490
[9]	Kume T, Sekiya N, Yano K. Heterogeneity in spatial P-distribution and foraging capability by Zea mays: Effects of patch size and barriers to restrict root proliferation within a patch[J]. Annals of Botany, 2006,98:1271-1277
[10]	Jackson R B, Caldwell M M. The timing and degree of root proliferation in fertile-soil microsites for three cold-desert perennials[J]. Oecologia,1989, 81:149-153
[11]	王剑,周志春,金国庆.马尾松种源在异质养分环境中的觅养行为研究[J]. 生态学报, 2007, 27(4):1350-1358
[12]	Mou P, Mitchell R J,Jones R H. Root distribution of two tree species under a heterogeneous nutrient environment[J]. Applied Ecology, 1997, 34:645-656
[13]	中国土壤学会农业化学专业委员会. 土壤农业化学常规分析[M]. 北京:科学出版社,1984
[14]	LY/T1271-1999 森林土壤分析法[S]
[15]	Aanderud Z T,Bledsoe C S,Richards J H. Contribution of relative growth rate to root foraging annual and perennial grasses form California oak wood[J]. Oecologia, 2003,136:424-430
[16]	Wijesinghe D K,John A E,Beurskens S,et al. Root system size and precision in nutrient foraging: Responses to spatial pattern of nutrient supply in six herbaceous species[J]. The Journal of Ecology,2001, 89:972-983
[17]	Einsmann J C,Jones R H,Mou P, et al. Nutrient foraging traits in 10 co-occurring plant species of contrasting life forms[J]. The Journal of Ecology,1999, 87:609-619
[18]	Wijesinghe D K,Hutchings M J. The effects of spatial scale of environmental heterogeneity on the growth of a clonal plant: An experimental study with Glechoma hederacea[J]. Journal of Ecology,1997, 85:17-28
[19]	Jackson R B,Pockman W T,Hoffmann W A. The structure & function of root systems[M]// Pugnaire F I,Valladares F. Handbook of functional plant ecology. New York: Marcel Decker lnc.,1999, 195-220
[20]	梁霞,刘爱琴,马祥庆, 等. 不同杉木无性系磷素特性的比较[J]. 植物生态学报, 2006,30(6):1005-1011
[21]	赵颖,周志春,吴吉富, 等. 马尾松优良种源对磷肥的生长反应和肥效持续性[J]. 林业科学, 2007,43(10): 64-70
[22]	吴楚,王政权,范志强. 氮素形态处理下水曲柳幼苗养分吸收利用与生长及养分分配与生物量分配的关系[J]. 生态学报, 2005,25(6): 1282-1290

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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

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Foraging Behaviors and Growth Responses of Pinus massoniana Seedlings in the Heterogeneous Nutrient Environment with Different Nutrient Patches

1. Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang 311400, Zhejiang, China

Received Date: 2009-03-26

Abstract: A pot experiment consisting of three different heterogenerous nutrient environments was designed, with homogeneous nutrient environment as control, to study the differences of foraging behavior of Pinus massoniana to N and P nutrient patches. The results showed that P. massoniana exhibited greater seedling growth, more biomass accumulation in P and whole nutrient heterogeneous environment, while it responsed unsensitively to nutrient heterogeneous environment. The root physiological and morphological plasticity played important roles when P. massoniana absorbed nutrient in P patch with poor mobility. Moreover, in P patch, root growth exhibited some characteristics, such as root proliferation, greater root scale, higher precision and sensitivity, improvement of root N and P absorption efficiency. However, its root scale, precision and sensitivity were lower in N patch, while root did not need to proliferate to acquire N with rich mobility, and N and P absorption efficiency were also low, which could illuminate that root physiological and morphological plasticity had no obvious effects on acquiring nutrients in N-enriched patch. The foraging behavior of P. massoniana in whole nutrient patch was similar with in P heterogeneous nutrient environment.

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Reference (22)

[1]	Hodge A. The plastic plant: root responses to heterogeneous supplies of nutrients[J]. New Phytologist, 2004,162: 9-24
[2]	王曙光,侯彦林. 土壤中氮营养斑研究进展[J]. 干旱地区农业研究,2003, 21(2): 45-49
[3]	王庆成,程云环. 土壤养分空间异质性与植物觅养的觅食反应[J]. 应用生态学报, 2004,15(6):1063-1068
[4]	George E, Bettina S, Christoph S, et al. Response of Picea, Pinus and Pseudotsuga roots to heterogeneous nutrient distribution in soil[J]. Tree Physiology,1997, 17: 39-45
[5]	Huante P, Rincón E, Chapin F S. Foraging for nutrients, responses to changes in light, and competition in tropical deciduous tree seedlings[J]. Oecologia, 1998,117:209-216
[6]	Philipson J J, Coutts M P. The influence of mineral nutrition on the root development of trees Ⅱ. The effect of specific nutrient elements on the growth of individual roots of Sitka spruce[J]. Journal Experimental Botany,1977, 28:864-871
[7]	Drew M C, Saker L R, Ashley T W. Nutrient supply and the growth of the seminal root system in barley[J]. Journal Experimental Botany, 1973,24:1189-2002
[8]	Drew M C. Comparison of the effect of a localized supply of phosphate, nitrate, ammonium and potassium on the growth of the seminal root system, and the shoot, in barley[J]. New Phytologist,1975, 75:479-490
[9]	Kume T, Sekiya N, Yano K. Heterogeneity in spatial P-distribution and foraging capability by Zea mays: Effects of patch size and barriers to restrict root proliferation within a patch[J]. Annals of Botany, 2006,98:1271-1277
[10]	Jackson R B, Caldwell M M. The timing and degree of root proliferation in fertile-soil microsites for three cold-desert perennials[J]. Oecologia,1989, 81:149-153
[11]	王剑,周志春,金国庆.马尾松种源在异质养分环境中的觅养行为研究[J]. 生态学报, 2007, 27(4):1350-1358
[12]	Mou P, Mitchell R J,Jones R H. Root distribution of two tree species under a heterogeneous nutrient environment[J]. Applied Ecology, 1997, 34:645-656
[13]	中国土壤学会农业化学专业委员会. 土壤农业化学常规分析[M]. 北京:科学出版社,1984
[14]	LY/T1271-1999 森林土壤分析法[S]
[15]	Aanderud Z T,Bledsoe C S,Richards J H. Contribution of relative growth rate to root foraging annual and perennial grasses form California oak wood[J]. Oecologia, 2003,136:424-430
[16]	Wijesinghe D K,John A E,Beurskens S,et al. Root system size and precision in nutrient foraging: Responses to spatial pattern of nutrient supply in six herbaceous species[J]. The Journal of Ecology,2001, 89:972-983
[17]	Einsmann J C,Jones R H,Mou P, et al. Nutrient foraging traits in 10 co-occurring plant species of contrasting life forms[J]. The Journal of Ecology,1999, 87:609-619
[18]	Wijesinghe D K,Hutchings M J. The effects of spatial scale of environmental heterogeneity on the growth of a clonal plant: An experimental study with Glechoma hederacea[J]. Journal of Ecology,1997, 85:17-28
[19]	Jackson R B,Pockman W T,Hoffmann W A. The structure & function of root systems[M]// Pugnaire F I,Valladares F. Handbook of functional plant ecology. New York: Marcel Decker lnc.,1999, 195-220
[20]	梁霞,刘爱琴,马祥庆, 等. 不同杉木无性系磷素特性的比较[J]. 植物生态学报, 2006,30(6):1005-1011
[21]	赵颖,周志春,吴吉富, 等. 马尾松优良种源对磷肥的生长反应和肥效持续性[J]. 林业科学, 2007,43(10): 64-70
[22]	吴楚,王政权,范志强. 氮素形态处理下水曲柳幼苗养分吸收利用与生长及养分分配与生物量分配的关系[J]. 生态学报, 2005,25(6): 1282-1290

Foraging Behaviors and Growth Responses of Pinus massoniana Seedlings in the Heterogeneous Nutrient Environment with Different Nutrient Patches

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通讯作者: 陈斌, bchen63@163.com

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Foraging Behaviors and Growth Responses of Pinus massoniana Seedlings in the Heterogeneous Nutrient Environment with Different Nutrient Patches

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