| 甘肃省森林优势树种营养元素积累及其生态服务价值研究 |
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| 引用本文： | 苗毓鑫,王顺利,王荣新,成彩霞,马钰,刘思瑞,董晓莉.甘肃省森林优势树种营养元素积累及其生态服务价值研究[J].甘肃农业大学学报,2012,47(6). |
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| 作者姓名： | 苗毓鑫 王顺利 王荣新 成彩霞 马钰 刘思瑞 董晓莉 |
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| 作者单位： | 甘肃省祁连山水源涵养林研究院,甘肃张掖,734000 |
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| 基金项目： | 国家林业局林业公益性行业科研专项，"十一五"国家科技支撑计划重大项目 |
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| 摘 要： | 以实地取样与实验室分析相结合,对甘肃省不同优势树种积累营养物质(N、P、K)进行了研究,并对甘肃省森林生态系统积累营养物质进行价值评估.结果表明:甘肃省森林各优势树种的干物质中N元素平均含量在0.2%～1.20%之间,P元素平均含量在0.04%～0.10%之间,K元素平均含量在0.1%～1.2%之间;甘肃省森林积累营养物质折合为化肥价值总计达25 0074.14万元/a,各优势树种中灌木林积累营养物质的价值最大;单位面积优势树种积累营养物质的价值位于81.28～952.29元/(hm2.a),甘肃省森林平均积累营养物质的价值为429.47元/(hm2.a).
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| 关 键 词： | 森林服务 林木养分 营养积累 价值评估 甘肃 |
Nutrient elements accumulation of forest dominant species and its ecological service value in Gansu Province |
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| MIAO Yu-xin
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WANG Shun-li
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WANG Rong-xin
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CHENG Cai-xia
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MA Yu
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LIU Si-rui
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DONG Xiao-li.Nutrient elements accumulation of forest dominant species and its ecological service value in Gansu Province[J].Journal of Gansu Agricultural University,2012,47(6). |
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| Authors: | MIAO Yu-xin WANG Shun-li WANG Rong-xin CHENG Cai-xia MA Yu LIU Si-rui DONG Xiao-li |
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| Abstract: | Nutrients accumulation of dominant tree species in Gansu Province were studied,and value of the accumulation was assessed.The results showed that,the average content of N,P and K in the dry matter of each dominant tree species in Gansu Province were 0.2%～1.20%,0.04%～0.10% and 0.1%～1.2%,respectively.The entire nutrients accumulation of forest in Gansu Province amount to chemical fertilizer was up to 2 500.74 million yuan.Nutrients accumulation value of shrub was the highest among all dominant tree species.Nutrients accumulation value of unit area was 81.28～952.29 yuan/hm2 per year.The average nutrients accumulation value of forest in Gansu Province was 429.47 yuan/hm2 per years. |
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| Keywords: | forest service forest nutrient accumulation of nutrients value assessment Gansu Province |
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