阔叶混交低质林诱导改造后土壤养分的模糊综合评价  

Fuzzy Evaluation of Soil Nutrients in Broad-Leaved Mixed Low-Quality Forest after Induced Transformation

作　　者：曾翔亮[1] 董希斌[1] 宋启亮[1] 崔莉[1] 

机构地区：[1]东北林业大学,哈尔滨150040

出　　处：《东北林业大学学报》2013年第9期50-53,93,共5页Journal of Northeast Forestry University

基　　金："十二五"农村领域国家科技计划课题(2012BAD22B02023);林业公益性行业科研专项(201004043)

摘　　要：对大兴安岭阔叶混交低质林按不同带宽(6、10、14、18 m)进行皆伐后,栽植樟子松、落叶松和红松进行诱导改造,采用模糊综合指数法对各诱导改造带,以及对照样地的土壤养分质量分数等级建立评价模型。结果表明:在土壤养分的影响因子中,土壤有机质和有效磷是影响土壤养分的主要因子;各诱导改造带的土壤非常肥沃,土壤养分质量分数等级为1.66～2.22;除6 m诱导改造带外,其他诱导改造带的土壤养分质量分数等级均要优于对照样地的土壤养分质量分数等级(1.93),且随着采伐带宽的增加,土壤养分质量分数等级升高。We took the clear-cutting in broad-leaved mixed low-quality forest of Daxing＇ an Mountain with different bandwidth （ 6 m, 10 m, 14 m and 18 m）. We performed induced transformation by planting Mongolica Litv, Larix gmelinii and Pinus ko- raiensis, and established the level of soil nutrient content evaluation model in the induced transformation zone and the check zoon by using the fuzzy comprehensive index method. The soil organic matter and available phosphorus are the main factor affecting the soil nutrient. The soil of induced transformation zone are very fertile and the level of soil nutrient con- tent in the induced transformation zone are between 1.66 and 2.22. The level of soil nutrient content in the induced trans- formation zone are better than that of the check zoon （ 1.93 ） except the induced transformation zone of 6 m. With the in- crease of cutting bandwidth, the level of soil nutrient content gets higher.

关 键 词：阔叶混交低质林 诱导改造 土壤养分 模糊综合指数法 

分 类 号：S714.8[农业科学—林学] S756.5