2024年6月19日 星期三
赣榆县厉庄地埂利用型式试验
Experiment on utilization patterns of borders of the terraced field in Lizhuang, Ganyu County
1993年 第2卷 第3期 页码[41-45]    下载全文[0.6MB]  
摘要

在赣榆县厉庄以大金鸡菊、紫穗槐和红柳三种经济植物进行了地埂利用型式试验,取得了比较明显的水土保持效果和改善农田小环境的生态效益。栽植后第三年植物覆盖率达90%或100%;地面蒸发量减少15.2~17.7%;截留降水量为0.5~0.7mm;大气相对湿度提高3.7~5.4%;土壤养分也有不同程度的增加。经济效益估测每亩地埂可收到300~600元,比种黄豆高5~9倍。效益最好的是红柳,大金鸡菊次之,紫穗槐较低。

Abstract

Notable effects on soil and water conservation and ecological benefits of improving microenvironment of the farmlands were obtained in Lizhuang, Ganyu County through the experiment of utilization patterns of borders of the terraced field with three species of economic plant - Coreopsis lanceolata , Amorpha fruticosa and Salix sino-purprea. The results indicated that in the third year after cultivation crown cover degree was up to 90% or 100 % ; ground evaporation decreased 15.2- 17.7 % ; rainfall interception was 0. 5-0. 7 mm ; air relative humidity increased 3.7 - 5.4 % , and soil nutrients increased in various degrees. The income of each species on the borders of terraced field were estimated as 300-600 yuan/mu. It was 5-9 times as much as that of soybean. Among them, the economic benefits of Sdix sino- purpurea was the best, then Coreopsis lanceolata and Amorpha fruticosa.

关键词地埂利用; 大金鸡菊; 紫穗槐; 红柳;
Key wordsutilization of borders of the terraced field; Coreopsis lanceolata; Amorpha fruticosa; Salix sino-pur purea
作者孙醉君 ,毛才良 ,孟庆法
所在单位江苏省植物研 究所 , 南京 2 1 0 0 1 4
江苏赣榆县水利局 , 赣 榆 2 2 2 1 0 0
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