原文
《中国十大茶叶区域公用品牌之信阳毛尖》
第二章 信阳毛尖产区分布与环境特征
一、信阳毛尖产区分布
中国茶区辽阔，茶叶产区主要分布在北纬18°-37°、东经 95°-122°范围内，覆盖上千个县、市。从区域划分来看，有华南、西南、江南、江北四个国家一级茶叶产区。由于在土壤、海拔、水热、植被等方面存在差异，因此四大茶区所产出的茶树、茶叶品质、类型也不相同。信阳茶区地处北纬 31°23'-32°7’、东经113°45'-115°55'的北亚热带地区，面积约18900平方公里。
信阳茶区东起固始、西到信阳。大别山脉由西向东延伸至该区的南沿，淮河贯穿于该地区的北部，地势西高东低，南高北低，茶区主要分布在大别山北麓，南湾水库、古山口水库、五岳水库、鲇鱼山水库一线和淮河以南广阔的丘陵山区，属我国华南、江南、西南、江北四大茶区中的江北茶区，古称淮南茶区，处于我国茶叶种植区的北缘。
信阳茶区的生态环境优越。这里山峦起伏，林木茂密，植被丰厚，雨量充沛，云雾弥漫，空气湿润，光照充足，日夜温差较大。茶树芽叶生长良好，持嫩性强，肥厚多毫，有机物质积累较多。全年平均气温不高，有利于氨基酸、咖啡碱等含氮化合物的合成与积累，这正是炒制优质绿茶所不能缺少的。信阳毛尖，内含有机物质丰富，香高味爽。
参考译文
“Xingyang Maojian Tea: Ten Regional Tea Public Brands in China”
Chapter 2 The Xinyang Maojian Tea Production Area: The Distribution and Environmental Characteristics
1. The Distribution of Xinyang Maojian Tea Production Area
China’s tea regions are vast, with tea-producing areas mainly distributed between 18°N-37°N latitude and 95°E-122°E longitude, covering thousands of counties and cities. There are four first-level national tea-producing areas: South China, Southwest China, Jiangnan, and Jiangbei. Due to differences in soil, altitude, hydrothermal conditions, and vegetation, the tea trees and the quality and types of tea produced in these four regions also vary. The Xinyang tea region is located in the subtropical area between 31°23'N-32°7’N and 113°45'E-115°55'E, covering an area of approximately 18,900 square kilometers.
It extends from Gushi in the east to Xinyang in the west, with the Dabie Mountains running along its southern edge and the Huai River crossing the northern part. The tea-producing areas are primarily located on the northern slopes of the Dabie Mountains, along the line of Nanwan Reservoir, Shishankou Reservoir, Wuyue Reservoir, and Nianyushan Reservoir, and in the vast hilly regions south of the Huai River. They belong to the Jiangbei Tea Region, one of the four major tea regions in China, which include South China, Jiangnan, Southwest, and Jiangbei. Historically, it was known as the Huainan Tea Region, situated at the northern edge of China's tea cultivation areas.
The ecological environment of the Xinyang tea region is superior, with undulating mountains, dense forests, rich vegetation, abundant rainfall, misty air, high humidity, sufficient sunlight, and a significant diurnal temperature variation. The tea plant shoots grow well, and tender with strong vitality, thick, and hairy, accumulating more organic matter. The average annual temperature is not high, which is beneficial for the synthesis and accumulation of nitrogen-containing compounds such as amino acids and caffeine, essential for making high-quality green tea. Xinyang Maojian tea is rich in organic substances, with a high aroma and refreshing taste.