| 河西走廊棘豆毒草中的硒及其与牲畜中毒关系研究 |
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| 引用本文： | 邵树勋,郑宝山,赵成章,殷翠琴,朗永斌,张爱玲.河西走廊棘豆毒草中的硒及其与牲畜中毒关系研究[J].地球科学进展,2004(Z1). |
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| 作者姓名： | 邵树勋 郑宝山 赵成章 殷翠琴 朗永斌 张爱玲 |
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| 作者单位： | 中国科学院地球化学研究所矿床地球化学开放实验室，环境地球化学国家重点实验室，中国科学院寒区早区环境与工程研究所，甘肃省肃南裕固族自治县畜牧局，甘肃省肃南裕固族自治县畜牧局，甘肃省肃南裕固族自治县畜牧局 中国科学院研究生院，北京 100039，贵州 贵阳 550002，甘肃 兰州 730000，甘肃 肃南 734400，甘肃 肃南 734400，甘肃 肃南 734400 |
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| 基金项目： | 国家自然科学重点基金“中国煤平均化学成分及煤中有害微量元素有机地球化学”(编号:40133010) |
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| 摘 要： | 河西走廊地区草原生态环境,棘豆等毒草泛滥成灾,导致大量牲畜中毒死亡。棘豆毒草导致的牲畜中毒症状与历史上马可波罗记载的古代肃州牲畜毒草中毒症状及其相似。为了确定马可波罗所记载的肃州牲畜毒草中毒是否与硒有关,本项研究对河西走廊地区主要草原畜牧区肃南县草原发育的棘豆属植物及其土壤中的硒进行了测定,测定结果表明:土壤硒含量平均值为0.205±0.173mg/kg,与世界平均土壤硒含量相近。棘豆属植物小花棘豆根、茎叶的硒平均含量分别为0.112±0.038mg/kg(0.052～0.174mg/kg),0.102±0.027mg/kg(0.066～0.158 mg/kg);黄花棘豆全株硒平均含量为0.066±0.009mg/kg(0.058～0.078mg/kg),种子硒:0.107mg/kg。可见该区棘豆属毒草硒含量远低于能导致一般动物中毒的3mg/kg植物硒含量。根据肃南县棘豆毒草发育的地理位置、牲畜中毒症状调查及其硒含量测定的结果,本文认为马可波罗所记载的中国西部肃州牲畜毒草中毒是棘豆属毒草中毒,其主要毒素成分不是硒。
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| 关 键 词： | 马可波罗 河西走廊 肃南 棘豆毒草 硒中毒 |
A STUDY ON SELENIUM IN WXYTROPIS AND ASSOCIATION OF IT WITH POISONING OF LIVESTOCK IN HEXI CORRIDOR |
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| SHAO Shu-xun.A STUDY ON SELENIUM IN WXYTROPIS AND ASSOCIATION OF IT WITH POISONING OF LIVESTOCK IN HEXI CORRIDOR[J].Advance in Earth Sciences,2004(Z1). |
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| Authors: | SHAO Shu-xun |
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| Institution: | SHAO Shu-xun~ |
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| Abstract: | In Hexi corridor area, large numbers of toxic grasses including Oxytropis spp etc badly extended widely and led to thousands of livestock poisoning and died. Poisoning symptoms of livestock resulting from Oxytropis grass are extremely similar to those described by Marco Polo as early as in 1295, which his horses suffered from toxic grass poisoning and caused loss of hairs and hooves in ancient Suzhou, western China. In order to confirm whether toxic grass poisoning in livestock of ancient Suzhou, weatern China, recorded by Marco Polo, is associated with selenium, this study made analysis of selenium concentrations in Oxytropis spp., and soils producing these grasses. Measured results indicated that soil Se is close to the mean Se of world soil without naturally occurring selenosis with an average of 0.205-0.173mg/kg. mean Se concentrations in Oxytropis spp are 0.112-0.038mg/kg (0.052-0.174mg/kg) for Oxytropis. glabra root; 0.102 +0.027mg/kg (0.066-0.158 mg/kg) for Oxytropis. glabra stem and leaf; 0.066-0.009mg/kg(0.058-0. 078mg/kg) for Oxytropis. ochrocephala whole stalk; and 0.107 mg/kg for Oxytropis. ochrocephala seed, respectively. These results revealed that Selenium concentrations in Oxytropis spp of Sunan County are much far low to the Selevel of 3 mg/kg to be able to cause common animals poisoning. According to above evidence, this study conclude that toxic grass poisoning in livestock of Suzhou, Western China reported by Marco Polo in 1295, resulted from Oxytropis spp, and is not selenosis. |
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| Keywords: | Marco Polo Hexi corridor Sunan Oxytropis Selenosis |
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