| 桉树人工林生态系统养分循环与平衡研究Ⅳ.桉树林间种山毛豆对生态系统养分循环的作用 |
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| 引用本文： | 廖观荣,钟继洪,李淑仪,蓝佩玲,廖新荣,王尚明,杨国清,简明,李宏.桉树人工林生态系统养分循环与平衡研究Ⅳ.桉树林间种山毛豆对生态系统养分循环的作用[J].生态环境,2003,12(4):440-442. |
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| 作者姓名： | 廖观荣 钟继洪 李淑仪 蓝佩玲 廖新荣 王尚明 杨国清 简明 李宏 |
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| 作者单位： | 1. 广东省生态环境与土壤研究所,广东,广州,510650
2. 湛江雷州林业局,广东,遂溪,524348 |
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| 基金项目： | 广东省农业环境综合治理重点实验室资助项目 |
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| 摘 要： | 桉树人工林间种山毛豆，增加了凋落物量和养分归还量，改善了营养元素的生物小循环。在一个轮伐期内山毛豆归还土壤养分的数量如下：氮528.37kg／hm^2，磷28.06kg／hm^2，钾66.20kg／hm^2，钙184.96kg／hm^2，镁57.21kg／hm^2；而同期刚果W5桉归还土壤养分的数量为：氮85.98kg／hm^2，磷3.94kg／hm^2，钾11.80kg/hm^2，钙36.98kg／hm^2，镁18.30kg／hm^2。由于间种山毛豆增加了生态系统的养分收入，减少了水土流失的养分支出，系统的各种养分出现了盈余的状况。
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| 关 键 词： | 桉树人工林 山毛豆 养分归还量 生物小循环 养分平衡 |
| 文章编号： | 1672-2175(2003)04-0440-03 |
| 修稿时间： | 2003年6月28日 |
The nutrient cycling and balance of eucalyptus plantation ecosystem Ⅳ. Effects of the interplanting of Tephrosia candida on nutrient cycling of eucalyptus plantation ecosystem |
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| LIAO Guan-rong,ZHONG Ji-hong,LI Shu-yi,LAN Pei-ling,LIAO Xin-rong,WANG Shang-ming,YANG Guo-qing,JIAN Ming,LI Hong . Guangdong Institute of Ecology,Environmental and Soil Sciences,Guangzhou ,China, . Leizhou Forestry Bureau,Suixi,Guangdong ,China.The nutrient cycling and balance of eucalyptus plantation ecosystem Ⅳ. Effects of the interplanting of Tephrosia candida on nutrient cycling of eucalyptus plantation ecosystem[J].Ecology and Environmnet,2003,12(4):440-442. |
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| Authors: | LIAO Guan-rong ZHONG Ji-hong LI Shu-yi LAN Pei-ling LIAO Xin-rong WANG Shang-ming YANG Guo-qing JIAN Ming LI Hong Guangdong Institute of Ecology Environmental and Soil Sciences Guangzhou China Leizhou Forestry Bureau Suixi Guangdong China |
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| Institution: | LIAO Guan-rong1,ZHONG Ji-hong1,LI Shu-yi1,LAN Pei-ling1,LIAO Xin-rong1,WANG Shang-ming2,YANG Guo-qing2,JIAN Ming2,LI Hong2 1. Guangdong Institute of Ecology,Environmental and Soil Sciences,Guangzhou 510650,China, 2. Leizhou Forestry Bureau,Suixi,Guangdong 524348,China |
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| Abstract: | Experimental results show that the interplanting of Tephrosia candida in the eucalyptus plantation can increase in litter amount and returning nutrient amount, improve the minor biological cycling of nutritional elements. The returning nutrient amount from Tephrosia candida to soil in a felling round is 528.37 kg/hm2 for N, 28.06 kg/hm2 for P, 66.20 kg/hm2 for K, 184.96 kg/hm2 for Ca, 57.21 kg/hm2 for Mg, while that of eucalyptus W5 is 85.98 kg/hm2 for N, 3.94 kg/hm2 for P, 11.80 kg/hm2 for K, 36.98 kg/hm2 for Ca, 18.30 kg/hm2 for Mg. Due to the increase in nutrient input of the ecosystem and the decrease in the nutrient output from soil and water loss, the nutrients in the system are surplus. |
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| Keywords: | eucalyptus plantation Tephrosia candida returning nutrient amount minor biological cycling nutrient balance |
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