| 间伐对祁连山青海云杉人工林土壤水分的影响 |
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| 引用本文： | 朱喜,何志斌,杜军,杨军军,陈龙飞.间伐对祁连山青海云杉人工林土壤水分的影响[J].林业科学研究,2015,28(1):55-60. |
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| 作者姓名： | 朱喜 何志斌 杜军 杨军军 陈龙飞 |
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| 作者单位： | 中国科学院寒区旱区环境与工程研究所, 中国生态系统研究网络临泽内陆河流域研究站, 中国科学院内陆河流域生态 水文重点实验室, 甘肃 兰州 730000;中国科学院大学, 北京 100049;中国科学院寒区旱区环境与工程研究所, 中国生态系统研究网络临泽内陆河流域研究站, 中国科学院内陆河流域生态 水文重点实验室, 甘肃 兰州 730000;中国科学院寒区旱区环境与工程研究所, 中国生态系统研究网络临泽内陆河流域研究站, 中国科学院内陆河流域生态 水文重点实验室, 甘肃 兰州 730000;中国科学院大学, 北京 100049;中国科学院寒区旱区环境与工程研究所, 中国生态系统研究网络临泽内陆河流域研究站, 中国科学院内陆河流域生态 水文重点实验室, 甘肃 兰州 730000;中国科学院大学, 北京 100049;中国科学院寒区旱区环境与工程研究所, 中国生态系统研究网络临泽内陆河流域研究站, 中国科学院内陆河流域生态 水文重点实验室, 甘肃 兰州 730000;中国科学院大学, 北京 100049 |
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| 基金项目： | 国家自然科学基金面上项目"祁连山中段人工植被恢复的生态水文机理研究"(编号:41271524);甘肃省杰出青年科学基金(编号:1210RJDA015);中科院"百人计划"项目"祁连山区森林水文过程及其对气候变化的响应"(编号:29Y127D11)资助 |
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| 摘 要： | 利用EM50土壤水分监测仪,在样地尺度上,测定了祁连山青海云杉天然林、无间伐和间伐强度为20%的人工林地生长季节的土壤水分,对比分析间伐对人工林土壤水分的影响。结果表明:未间伐人工林林地表层(10 cm)土壤含水量显著高于间伐强度为20%的人工林和天然林,间伐导致了人工林林地表层土壤水分下降;而对于深层土壤含水量而言,间伐措施又显著提高了深层60 cm处的土壤含水量。与天然林地土壤含水量相比,无间伐人工林深层60 cm和80 cm处的土壤体积含水量仅为天然林的49.7%和52.1%,深层土壤已经出现旱化现象,间伐措施能够减缓这种旱化现象。
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| 关 键 词： | 祁连山 青海云杉人工林 土壤水分 间伐 |
| 收稿时间： | 2014/5/20 0:00:00 |
Effects of Thinning on the Soil Moisture of the Picea crassifolia Plantation in Qilian Mountains |
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| ZHU Xi,HE Zhi-bin,DU Jun,YANG Jun-jun and CHEN Long-fei.Effects of Thinning on the Soil Moisture of the Picea crassifolia Plantation in Qilian Mountains[J].Forest Research,2015,28(1):55-60. |
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| Authors: | ZHU Xi HE Zhi-bin DU Jun YANG Jun-jun and CHEN Long-fei |
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| Institution: | Linze Inland River Basin Research Station, Key Laboratory of Inland River Basin Science, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, Gansu, China;University of Chinese Academy of Sciences, Beijing 100049, China;Linze Inland River Basin Research Station, Key Laboratory of Inland River Basin Science, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, Gansu, China;Linze Inland River Basin Research Station, Key Laboratory of Inland River Basin Science, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, Gansu, China;University of Chinese Academy of Sciences, Beijing 100049, China;Linze Inland River Basin Research Station, Key Laboratory of Inland River Basin Science, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, Gansu, China;University of Chinese Academy of Sciences, Beijing 100049, China;Linze Inland River Basin Research Station, Key Laboratory of Inland River Basin Science, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, Gansu, China;University of Chinese Academy of Sciences, Beijing 100049, China |
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| Abstract: | In sample area scale, the soil moisture of Thickleaf Spruce (Picea crassifolia) natural forest and the plantations with no thinning and thinned in 20% intensity in the Qilian Mountains were studied during the growing season by EM50 soil moisture monitors to analysis the effects of thinning on plantation soil moisture. The results showed that the surface (10 cm) soil moisture content of unthinned plantation was significantly higher than that of the plantations thinned in 20% intensity and the natural forests. It is proved that thinning led to the decline of surface soil moisture of plantations. But the intermediate thinning significantly increased the soil moisture content at the depth of 60 cm. Compared with the soil water content of natural forest land, the soil volumetric water contents in the depth of 60 cm and 80 cm of unthinned plantation were only 49.7% and 52.1% that of natural forests during the growing season. Aridification was found in deep soil layer of plantation, but it can be mitigated and slow down by intermediate thinning. |
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| Keywords: | Qilian Mountains Picea crassifolia soil moisture thinning |
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