潜叶蝇幼虫在二月兰的田间空间分布型及其抽样技术
2021-06-20李平戴伟
李平 戴伟



摘要:采用空间分布型检验、聚集强度指标检验和线形回归方法研究了潜叶蝇幼虫在二月兰的田间分布型及其抽样技术。结果表明:潜叶蝇幼虫在二月兰的田间分布呈聚集分布,聚集程度受环境影响较大,幼虫的理论抽样模型n=3.841 6/D2(1.541 2/x+0.030 6)。
关键词:潜叶蝇;二月兰;空间分布型;理论抽样模型
中图分类号:S436.8;S681.9 文献标志码:A 文章编号:1001-1463(2021)05-0053-05
doi:10.3969/j.issn.1001-1463.2021.05.013
Nutritional Components Analysis of Characteristic Crop Aralia chinensis L. in Zhangjiachuan of Gansu Province
XU Hui 1,2, HUANG Wenkui 1,2, WANG Yanjun 1,2, ZHANG Guchun 1,2, LI Yanjie 1,2, ZHANG Mei 1,2, LI Jian 1,2
(1. Jiangsu Institute of Geology and Mineral Design, Xuzhou Jiangsu 221000,China; 2.Testing Center of China National Administration of Coal Geology, Xuzhou Jiangsu 221000,China)
Abstract:The nutritional components and beneficial mineral elements of 9 Aralia chinensis L. samples from Zhangjiachuan County were detected and analyzed. The results showed that the average contents of protein,soluble sugar, crude fat, amino acid, total saponins and crude polysaccharide in the leaves and buds of Aralia chinensis L. were 39.8 g/kg, 5.6 g/kg, 4.6 g/kg, 17.9 g/kg, 1.6 g/kg, 3.4 g/kg, respectively. And the average contents of zinc,iron,calcium, selenium and boron were 5.46 mg/kg, 43.3 mg/kg, 745 mg/kg, 0.015 mg/kg, 1.24 mg/kg,respectively. It has the characteristics of high nutrition, low sugar, high calcium, iron and low selenium, and the existence of saponins and polysaccharides makes it an ideal health care food.
Key words:Aralia chinensis L.; Nutritional components; Mineral elements; Wild vegetable; Zhangjiachuan County
二月蘭(Orychophragmus violaceus)别名诸葛菜,属十字花科诸葛菜属越年生矮生草本植物,其适生性、抗逆性、耐寒性、繁殖力强,对土壤条件要求不高,是北方地区重要的绿肥资源植物[1 ],也是人们常见的野生蔬菜。广泛生长在平原、山地、路旁、地边、林缘、宅旁、林下、滩湖边等处,具有食、饲、药、观赏、调节生境、培肥地力等多种开发利用价值。据测定,每100 g鲜品中含胡萝卜素3.32 g、维生素B2 0.16 mg、维生素C 59 mg以及人体所需的多种矿物质。其种子含油量超过50%,属良好的油料植物之一,提取油中亚油酸含量较高,具有降低人体内血液胆固醇和甘油三酯的功能。用作食用,不仅清鲜爽口,并能阻止血栓形成、治疗心血管疾病等作用;用作饲料,能提高母畜泌乳能力、仔畜体重、家禽产蛋率和免疫力的功能;用作景观绿化,可以点缀美化环境;实行农田套种,能起到地表覆盖、调节生境,为天敌提供适宜的栖息场所和提高土壤有机质、培肥地力的作用[1 ]。二月兰是甘肃河西灌区间作或套种的常见绿肥植物种类之一[2 - 3 ]。近年来在甘肃省金昌市永昌县和武威市凉州区二月兰栽培地调查发现,潜叶蝇幼虫是其最主要的害虫,然而潜叶蝇幼虫在绿肥植物二月兰田间的空间分布和测报技术研究鲜有报道。……
