摘要
为探讨滨海盐碱地不同造林模式对土壤肥力的影响,采用野外取样与室内分析测试相结合的方法,选取沾化区下洼镇枣旺林场盐碱地的8个造林树种林地及对照空地为研究对象,运用修正的内梅罗综合指数法对土壤肥力特征进行综合评价。结果表明:造林可改善土壤结构,降低土壤盐渍化程度,提高土壤肥力;不同造林地综合肥力系数为刺槐林>冬枣林>桑树林>杨树林>紫穗槐林>白蜡林>榆树林>柽柳林>空地。
In order to study the effects of different afforestation modes on soil fertility of coastal saline-alkali land,by using the method of combining field sampling with indoor analysis and testing,forestry land of 8 afforestation tree species and control bare land in the saline-alkali land of Zaowang Forest Farm in Xiawa Town,Zhanhua District were selected as research objects,and the soil fertility characteristics were evaluated by modified Nemerow composite index method.The results showed that afforestation could improve soil structure,reduce the degree of soil salinization,improve soil fertility;soil fertility in different afforestation modes ranked as black locust forest>winter jujube forest>mulberry forest>poplar forest>shrubby amorpha forest>Chinese ash forest>elm forest>tamarisk forest>bare land.
作者
王合云
杨晨辉
董智
WANG Heyun;YANG Chenhui;DONG Zhi(Liaocheng Water Conservancy Survey and Design Institute,Liaocheng Shandong 252000;Forestry College,Shandong Agricultural University,Tai′an Shandong 271018)
出处
《现代农业科技》
2022年第17期148-152,共5页
Modern Agricultural Science and Technology
基金
世界银行贷款山东生态造林项目“山东生态造林项目生态效益监测与评估”(SEAP-JC-2)。
关键词
造林模式
土壤肥力
评价
滨海盐碱地
afforestation mode
soil fertility
evaluation
coastal saline-alkali land
