| 用土壤养分系统研究法评价杨树人工林土壤养分状况 |
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| 作者姓名： | YUChang-bing CHENFang LUOZhi-jian CHENWei-wen |
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| 作者单位： | [1]WuhanBotanicalGarden,ChineseAcademyofSciences,Wuhan430074,P.R.China [2]InstituteofForestryProtection,HubeiAcademicofForestryScience,Wuhan430079,P.R.China |
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| 基金项目： | The study was supported by PPI/PPIC China Program (No. HB-19) and Wetland Laboratory Opening Foundation of Hubei Province (No. HNKFJ20021301). |
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| 摘 要： | A study was conducted to evaluate the soil nutrient status of poplar plantation by Soil Nutrient Systematic Approach(SNSA) in Jianghan Plain, Hubei Province, China. Soil physiochemical properties were analyzed in laboratory through collection soil samples of study site. Ten treatments of application different fertilizers were designed such as CK, optimum treatment (N, P,K, Zn), -N(P, K, Zn), -P(N, K, Zn), -K(N, P, Zn), Mg(N, P, K, Zn, Mg), -Zn (N,P,K), 2P(N, 2P, K, Zn), 2K(N, P, 2K, Zn), and 2N 2P 2K(2N, 2P, 2K, Zn) for field experiment to test the effect on tree height, diameter (DBH) growth, and dry weight of poplar.The results showed that there was no significant difference in tree heights between treatments with different fertilizers, diameter growth of poplar trees in treatments of lack of N and Zn was significantly slower than that of trees in optimum treatment, and dry weight of poplar dropped significantly for treatment of CK as well as treatments without application N and Zn. It is concluded that N and Zn were main limiting factor for poplar growth. Results from laboratory analysis and field experiment were uniform perfectly, which proved that SNSA was reliable in evaluating soil nutrient status of poplar plantation.
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| 关 键 词： | 杨树 人工林 土壤养分 评价 土壤养分系统研究法 氮 锌 |
| 收稿时间： | 12 August 2004 |
Evaluation of soil nutrient status in poplar forest soil by soil nutrient systematic approach |
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| YUChang-bing CHENFang LUOZhi-jian CHENWei-wen.Evaluation of soil nutrient status in poplar forest soil by soil nutrient systematic approach[J].Journal of Forestry Research,2004,15(4):298-300. |
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| Authors: | Email author" target="_blank">Yu?Chang-bingEmail author Chen?Fang Luo?Zhi-jian Chen?Wei-wen |
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| Institution: | (1) Wuhan Botanical Garden, Chinese Academy of Sciences, 430074 Wuhan, P. R. China;(2) Institute of Forestry Protection, Hubei Academic of Forestry Science, 430079 Wuhan, P. R. China |
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| Abstract: | A study was conducted to evaluate the soil nutrient status of poplar plantation by Soil Nutrient Systematic Approach (SNSA) in Jianghan Plain, Hubei Province, China. Soil physiochemical properties were analyzed in laboratory through collection soil samples of study site. Ten treatments of application different fertilizers were designed such as CK, optimum treatment (N, P, K, Zn), N(P, K, Zn), P(N, K, Zn), K(N, P, Zn), +Mg(N, P, K, Zn, Mg), Zn (N,P,K), +2P(N, 2P, K, Zn), +2K(N, P, 2K, Zn), and 2N+2P+2K(2N, 2P, 2K, Zn) for field experiment to test the effect on tree height, diameter (DBH) growth, and dry weight of poplar. The results showed that there was no significant difference in tree heights between treatments with different fertilizers, diameter growth of poplar trees in treatments of lack of N and Zn was significantly slower than that of trees in optimum treatment, and dry weight of poplar dropped significantly for treatment of CK as well as treatments without application N and Zn. It is concluded that N and Zn were main limiting factor for poplar growth. Results from laboratory analysis and field experiment were uniform per-fectly, which proved that SNSA was reliable in evaluating soil nutrient status of poplar plantation. |
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| Keywords: | Soil nutrient status Soil Nutrient Systematic Approach Poplar plantation Limiting factor Evaluation method Soil physiochemical properties |
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