丁草胺是一类酰胺类除草剂,因其具有高效、低毒、价廉等特点而被广泛地应用于水稻田中[1]。除草剂的应用极大地降低了劳动强度,直接或间接地提高了农业生产水平。由于除草剂多为有一定残效期的化合物,且可在生物体内富集,因此其对生态环境的影响已引起世界各国的重视。两栖动物 Butachlor is a class of amide herbicides, which are widely used in paddy field due to its high efficiency, low toxicity and low cost [1]. The use of herbicides has greatly reduced labor intensity and directly or indirectly increased agricultural production. Because the herbicides are mostly compounds with certain residual effect, and can be enriched in the organism, their influence on the ecological environment has drawn the attention of all countries in the world. Amphibian