| 土壤质地对落叶松人工林生长的影响 |
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| 引用本文： | 赵庆喜.土壤质地对落叶松人工林生长的影响[J].防护林科技,2014(5):35-36. |
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| 作者姓名： | 赵庆喜 |
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| 作者单位： | 岫岩县林业局,辽宁鞍山114300 |
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| 摘 要： | 通过对不同土壤质地对落叶松生长影响的试验研究,结果表明,落叶松人工林的生长受土壤质地的影响很大,不同的土层厚度导致落叶松生长有不同的表现;在厚层土（表土〉20cm）生长的落叶松胸径比中层（11～20cm）和薄层（〈11cm）土提高16.6%和38.6%,树高提高21.8%和37.7%;厚层土（〉60cm）自然含水量比中层土（41～60cm）和薄层土（〈41cm）分别高4～11和9～15个百分点,田间持水量比中层土和薄层土分别高3～11和6～17个百分点,凋萎含水量比中层土和薄层土低0.65～1.1和1～2个百分点,厚层土的饱和持水能力比中层土和薄层土高3%和7%;土壤中的各项养分含量指标均是厚层土高于中层土和薄层土,落叶松的生长指标也是厚层土高于中层土和薄层土。
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| 关 键 词： | 土壤质地 落叶松 生长 |
Effects of Soil Textures on the Growth of Larix sp.Plantation |
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| Zhao Qingxi.Effects of Soil Textures on the Growth of Larix sp.Plantation[J].Protection Forest Science and Technology,2014(5):35-36. |
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| Authors: | Zhao Qingxi |
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| Institution: | Zhao Qingxi (Bureau of Forestry, Xiuyan County, Anshan 114300, China) |
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| Abstract: | Effects of the different soil textures on the growth of Larix sp. were studied. Result shows that： the growth of Larix sp. plantation were greatly affected by soil texture; different soil thickness lead to differently growth for Larix sp. ;the diameter of Larix sp. at the thick layer of soil （topsoil） 20 cm） is 16.6% ＆38. 6% higher than that of the middle layer of soil （11-20 cm） ＆ thin layer （〈11cm）, respectively, the tree height increase by 21.8% ＆ 37.7% ;the natural moisture content at thick layer of soil （〉 60 cm） is 4-11% ＆ 9-15% higher than that of middle earth （41-60 cm） and thin layer of soil （〈41cm）,respectively;field water capacities is 3-11 ＆ 6-17 percent higher than that of the middle layer of soil ＆ thin layer of soil, respectively; wilting water content is 0.65- 1.1 ＆1-2 percent lower than that of middle layer of soil ＆ thin layer of soil;saturated water-holding capacity of the thick layer of soil is 3 0%＆7 % higher than that of the middle layer of soil ＆ the thin layer of soil;the indexes of each nutrient content of soil is thick layer of soil 〉the middle layer of soil and the thin layer of soil; the indexes of Larix sp. is thick layer of soil 〉the middle layer of soil and the thin layer of soil. |
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| Keywords: | soil texture Lariz sp growth |
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