一、概述棉田生态是以棉花为主体,由生物(动、植物及微生物)、物理及化学环境(光、热、水、气、土等)和社会经济条件(农业生产活动、科学技术水平、经济状况等)等形成相促相克的统一体。棉田生态不是自然的,它有着自身形成、发展和演变及其类型的规律和特点。彭泽县地处长江中下游南岸,位于江西省最北部,地理位置在东经116°22′至116°53′、北纬29°35′至30°06′之间。属于中亚热带和北亚热带边缘过渡地带。东与安徽省东至县接壤,南与本省波阳、都昌县毗邻,西连湖口县,北与安徽宿松、望江县隔江相望。地势大致自东向北逐渐倾斜,南高北低,东部为一长形山区,海拔在500米以上。山间分布有小平 I. Introduction The cotton field ecology is mainly composed of cotton. It consists of biological (animal, plant and microbe), physical and chemical environment (light, heat, water, gas, soil, etc.) and social and economic conditions (agricultural production, science and technology, Economic conditions, etc.) to form a unified phase of reconciliation. Cotton ecology is not natural, it has its own formation, development and evolution and the types of laws and characteristics. Pengze County is located on the south bank of the middle and lower reaches of the Yangtze River and is located in the northernmost part of Jiangxi Province. Its geographical location is between longitude 116 ° 22 ’and longitude 116 ° 53’ and latitude 29 ° 35 ’and 30 ° 06’ north. Belongs to the transitional zone of the Central Asian tropical and northern subtropical edge. East and Anhui Province, east of the county bordering the southern border with the provincial Beiyang, Duchang County, Hukou County in the west, north and Anhui Susong, Wangjiang across the river. The terrain generally gradually tilted from east to north, low in the south and north, east of a long mountain, elevation of 500 meters. Distribution of a small mountain