青海云杉不同生境与结果能力、产种量相关性研究  

Correlation Study on Different Biotope and Fruiting and Seed Yield of Picea crassifolia Kom.

作　　者：雷芳 Lei Fang(Gucheng Station of Gansu Qilianshan National Nature Reserve Management and Protection Center,Tianzhu,Gansu 733211)

机构地区：[1]甘肃祁连山国家级自然保护区管护中心古城自然保护站,甘肃天祝733211

出　　处：《宁夏农林科技》2022年第2期16-19,共4页Journal of Ningxia Agriculture and Forestry Science and Technology

摘　　要：为了提高青海云杉采种林抚育水平和产种量,调查研究不同生境土壤肥力、土壤含水量、土壤类型和地形地貌与产种量的相关性。结果表明土壤速效氮含量、含水量与青海云杉结果植株比例、单株球果数、单株产种量呈负相关,相关系数均为-0.98;土壤速效磷、速效钾含量与青海云杉结果植株比例、单株球果数、单株产种量呈正相关,相关系数为0.62~0.97;土壤类型、地形地貌与结果植株比例、单株球果数、单株产种量也有一定的相关性。参考相关性研究结论,建议从施肥、控水、园地选择等方面促进青海云杉种子早产和丰产。In order to increase tending level and seed yield of Picea crassifolia Kom.nurse-crop,the correlation between different biotope soil fertility,water content,type,landform and seed yield were investigated and studied.The result showed that the correlation between soil fast-acting nitrogen content,water content and fruiting plant proportion,single plant cone number,single plant seed yield of Picea crassifolia Kom.was negative,the correlation coefficient was-0.98 separately.The correlation between fast-acting phosphorus content,fast-acting potassium content and fruiting plant proportion,single plant cone number,single plant seed yield of Picea crassifolia Kom.was positive,the correlation coefficient was 0.62~0.97.Soil type,landform and fruiting plant proportion,single plant cone number,single plant seed yield of Picea crassifolia Kom.also has certain correlation.Reference to the correlation study conclusions,we suggested to promote preterm birth and high yield of Picea crassifolia Kom.seed from fertility,water control,garden selection,and so on.

关 键 词：青海云杉 不同生境 产种量 相关性 

分 类 号：S791.18[农业科学—林木遗传育种]