摘要
选择核桃与5种中药材的复合经营模式,即核桃+滇黄精(H+H)、核桃+云木香(H+M)、核桃+白及(H+B)、核桃+滇重楼(H+C)、核桃+秦艽(H+Q)及以核桃林(CK)为对照,2.5 a后对6种经营模式土壤的pH值,有机质、全量元素、速效元素和矿质元素质量分数进行测定比较分析,并采用灰色关联分析对6种经营方式进行土壤肥力综合评价。结果表明:在土层深(h)0<h≤20 cm土壤肥力指标较20 cm<h≤40 cm土壤肥力指标高,且差异大;在0<h≤20 cm土壤,复合经营的pH值与CK相比,除H+B外其他4种模式均低于CK;主要营养元素方面,有机质质量分数H+B模式最高是最低H+H模式的2.71倍;水解氮质量分数H+B模式最高,且不同经营模式水解氮质量分数差异达显著水平;有效磷质量分数CK最高,是最低H+Q的1.67倍;速效钾质量分数H+Q最高,且不同模式间差异达显著水平。对土壤pH值等13个指标进行灰色关联分析排序,由大到小的顺序0<h≤20 cm土层为H+H、H+M、H+Q、H+B、CK、H+C;20 cm<h≤40 cm土层为H+B、H+H、H+M、H+Q、CK、H+C。试验得出,核桃中药材复合经营能提高土壤的综合肥力及不同复合经营模式需肥特性,将为下一步科学合理施肥提供参考。
The five walnut forest-herbal medicine agroforestry planting models(namely:H+H(Juglans sigillata+Polygonatum kingianum),H+M(Juglans sigillata+Saussurea costus),H+B(Juglans sigillata+Bletilla striata),H+C(Juglans sigillata+Paris polyphylla),H+Q(Juglans sigillata+Gentiana macrophylla))were used as the research object,and walnut pure forest(Juglans sigillate,CK)as controls.After 2.5-a management,the pH,organic matter,full amount and available mineral elements in the soil of the above six planting models were analyzed.Grey relational analysis was used to evaluate the soil fertility.The results showed that the soil fertility index of shallow soil(0<depth(h)≤20 cm)is higher than that of deep soil(20 cm<h≤40 cm),and the difference is large.The values of pH in shallow soil from agroforestry planting models,except for H+B,were lower than CK.The content of soil organic matter in H+B was the highest,which is 2.71 times of that in the lowest H+H model.The content of hydrolyzed nitrogen in H+B was the highest,which of the difference was significant among different models.The content of available phosphorus in CK was the highest,which was 1.67 times higher than that in the lowest H+Q.The content of available potassium in H+Q was the highest,and there was significant difference among different models.Based on the grey correlation analysis of 13 indexes from above six soil,the results showed that the fertility indexes of shallow soils were in the descending order of H+B,H+H,H+M,H+Q,CK,and H+C;and that of deep soil in the descending order were H+B,H+H,H+M,H+Q,CK,and H+C.The walnut forest-herbal medicine agroforestry planting models could improve the comprehensive fertility of soil,and provide a better understanding to the fertilizer characteristics and scientific fertilization of different agroforestry models.
作者
肖良俊
谢正万
张传光
杨根林
缪福俊
吴涛
宁德鲁
Xiao Liangjun;Xie Zhengwan;Zhang Chuanguang;Yang Genlin;Miao Fujun;Wu Tao;Ning Delu(Yunnan Academy of Forestry and Grassland,Kunming 650201,P.R.China;Forestry institution of science of Lijiang)
出处
《东北林业大学学报》
CAS
CSCD
北大核心
2021年第1期91-95,共5页
Journal of Northeast Forestry University
基金
云南省重大科技专项计划(2018ZG001)
云南省基础研究面上项目(202001AT070146)。
关键词
核桃
复合经营模式
中药材
土壤肥力
灰色关联
Walnut
Agroforestry pattern
Medicinal plants
Soil fertility
Grey correlation method
