| 长白山不同植被对土壤和生态环境的作用 |
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| 引用本文： | 胡全德,姜永久.长白山不同植被对土壤和生态环境的作用[J].吉林农业大学学报,2000,22(2):71-75. |
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| 作者姓名： | 胡全德 姜永久 |
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| 作者单位： | 1. 吉林农业大学农学院,长春,130118
2. 临江市科委,临江,134600 |
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| 基金项目： | 吉林省科委、省农发办科技示范区项目! ( 990 2 2 19) |
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| 摘 要： | 测定了长白山天然林、人工林、荒草等植被下及陡坡耕地土壤的主要性状和长白山不同植被对土壤环境的影响。结果表明：天然林下土壤有机质含量丰富，土壤理化性状好，有机质、碱解搂、速效钾、含水量分别为１５．４３４％、５２５．５６４ｍｇ／ｋｇ、４７２．２０ｍｇ／ｋｇ、３８．６２％；人工针叶林下土壤有机质含量低，土壤板结，理化性状差，有机质、碱解氮、速效钾、含水量分别为５．３３５％、２３２．３９５ｍｇ／ｋｇ、３２
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| 关 键 词： | 生态环境 植被 土壤 长白山 树种 |
| 修稿时间： | 2000-01-07 |
The Effect of Different Stands of Changbai Mountain on Soil and Ecological Environment |
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| HU Quan-de,JIANG Yong-jiu.The Effect of Different Stands of Changbai Mountain on Soil and Ecological Environment[J].Journal of Jilin Agricultural University,2000,22(2):71-75. |
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| Authors: | HU Quan-de JIANG Yong-jiu |
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| Abstract: | The main characters of soil under different stands,namely,natural forest,man madeforest,weeds slope and steep slope cultivated land on Changbai mountain were determined,and the effect of different stand ecological environment was studied.Results showed that the soil under natural forest is rich in organic matters,having good physical and chemical character, organic matters,alkaline degradation nitrogen,active potassium,water content were 15 434%, 525 564?mg/kg ,472 20?mg/kg,38 62% respectively;organic matters in the soil under man made conifer forest are less,and the soil is hardpan,in addition,physical and chemical characters are bad.The contents of organic matters,alkaline degradation nitrogen,active potassium and water content were 5 335%,232 395?mg/kg,320 525?mg/kg,14 59% respectively;organic matters,effective phosphorus and active potassium in the soil under weeds slope are less than those of man made conifer forest,but the content of alkaline degradation nitrogen and water content are more; soil condition under steep slope cultivated land is the worst.Water transpiration rate of broadleaf tree is much higher than that of conifer tree,which made it having greater protective function. |
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| Keywords: | natural forest man made forest ecological environment stand soil Changbai mountain |
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