| 马尾松幼龄林地水土流失的研究 |
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| 引用本文： | 秦国峰,荣文琛,金国庆,洪炜.马尾松幼龄林地水土流失的研究[J].林业科学,1999(Z1). |
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| 作者姓名： | 秦国峰 荣文琛 金国庆 洪炜 |
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| 作者单位： | 中国林业科学研究院亚热带林业研究所，中国林业科学研究院亚热带林业实验中心 |
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| 摘 要： | 在马尾松造林后的４年内，设置径流小区对林地水土流失进行定位观测。结果表明：不同造林整地方式的林地水土及其养分流失量，第１年最大，全垦林地径流量１０４９７０ｔ／ｈｍ２、土壤流失量５３５ｔ／ｈｍ２、径流养分流失量１２９１ｋｇ／ｈｍ２、土壤养分流失量４１０４４ｋｇ／ｈｍ２；穴垦林地分别为９２１２０ｔ／ｈｍ２、５７９ｔ／ｈｍ２、１０８０ｋｇ／ｈｍ２、４６７９３ｋｇ／ｈｍ２；荒坡地分别为１１９５５０ｔ／ｈｍ２、２８７ｔ／ｈｍ２、８９６ｋｇ／ｈｍ２、２０００５ｋｇ／ｈｍ２。第２～４年流失量依次降低。３种整地方式均以第１年流失最严重、第４年流失很轻微，第２、第３年全垦＞穴垦＞荒坡，流失量较轻。观测结果可为马尾松速生丰产林营建与地力维护的方案制定提供依据。
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| 关 键 词： | 马尾松，人工幼林，环境监测，水土流失 |
A STUDY ON SOIL EROSION IN MASSON PINE YOUNG STAND |
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| Qin Guofeng\ Rong Wenchen\ Jin Guoqing.A STUDY ON SOIL EROSION IN MASSON PINE YOUNG STAND[J].Scientia Silvae Sinicae,1999(Z1). |
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| Authors: | Qin Guofeng\ Rong Wenchen\ Jin Guoqing |
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| Abstract: | The 4 year old masson pine stand was monitored on soil erosion in runoff plots. The results indicated: The water, soil and nutrient loss of forest lands with different site preparation overall site preparation or hole site preparation was biggest in the first year, 1049.70 t/hm 2(runoff), 5.35 t/hm 2(soil loss), 12.91 kg/hm 2(nutrient runoff) and 410.44 kg/hm 2(soil nutrient loss) in the full site preparation plots, 921.20 t/hm 2, 5.79 t/hm 2, 10.80 kg/hm 2 and 467.93 kg/hm 2 respectively in the hole site preparation plots 1195 50 t/hm 2, 2.87 t/hm 2, 8.96 kg/hm 2 and 200.05 kg/hm 2 respectively in CK. The runoff loss was reduced year by year from the second year to the fourth year. The runoff loss of plots prepared with 3 types was serious in the first year and light in the fourth year, the runoff loss in the second and third year followed the order: overall site preparation>hole site preparation>CK. All these monitoring results provided a solid base for fast growing and high yielding stand establishment and soil fertility conservation. |
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| Keywords: | Masson pine Young stand Environment monitor Soil and water losses |
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