基于遥感数据的湖南双季稻地理空间分异特征  

Geographical Spatial Differentiation Characteristics of Double-Season Rice in Hunan Province Based on Remote Sensing Data Products

作　　者：谭杰扬[1] 张晓杰 陈丽桦 詹祎蕊 肖景峰 刘英[1] 金龙新[2] 邓文[1] TAN Jie-yang;ZHANG Xiao-jie;CHEN Li-hua;ZHAN Yi-rui;XIAO Jing-feng;LIU Ying;JIN Long-xin;DENG Wen(Institute of Agricultural Economy and Regional Planning,Hunan Academy of Agricultural Sciences,Changsha 410125,PRC;Institute of Agricultural Information and Engineering,Hunan Academy of Agricultural Sciences,Changsha 410125,PRC)

机构地区：[1]湖南省农业科学院农业经济和农业区划研究所,湖南长沙410125 [2]湖南省农业科学院农业信息与工程研究所,湖南长沙410125

出　　处：《湖南农业科学》2023年第5期82-87,93,共7页Hunan Agricultural Sciences

基　　金：湖南省自然科学基金青年基金(2021JJ40286);湖南省农业科技创新资金(2022CX29);“三分地养活一个人”粮食高产绿色优质科技创新工程(2021—2023)。

摘　　要：基于中高空间分辨率双季稻种植面积遥感数据产品,运用地理空间分异分析方法,从像元尺度对湖南双季稻的地理空间分异特征进行分析。结果表明:湖南双季稻的地理空间分异特征明显,主要分布在武陵山脉以东、幕阜山以西的洞庭湖平原地区,雪峰山以东、罗霄山以西、南岭山脉以北的湘中丘陵盆地地区;纬度上,双季稻面积从南到北呈3个阶梯式上升态势,核心纬度为28.5°N~29.2°N;经度上,呈自西向东先增后减的分布态势,核心经度为112.4°E~113.0°E;海拔上,随海拔升高而不断下降,核心海拔为105 m以下的低海拔区;坡度在9°以下地区的耕地中双季稻的种植比例达到近三成;洞庭湖地区为双季稻种植的主要地区,其面积与耕地占比在湖南4大区域经济板块中均为最高。Based on medium to high spatial resolution remote sensing data products for planting area of double-season rice,the spatial heterogeneity analysis method was used to analyze the geographical spatial differentiation characteristics of Hunan doubleseason rice on pixel scale.The results showed that the characteristics of geographical spatial differentiation of double-season rice in Hunan were obvious.Double-season rice was mainly distributed in the Dongting Lake plain area located between the east of Wuling Mountains and the west of Mufu Mountains,and in the central Hunan hilly basin area surrounded by the east of Xuefeng Mountains,the west of Luoxiao Mountains and the north of Nanling Mountains.In latitude,the area of double-season rice increased in three steps from south to north,with the core latitude ranging from 28.5°N to 29.2°N.In longitude,the area increased first and then decreased from west to east,and its core longitude was from 112.4°E to 113.0°E.In altitude,the area decreased with increasing altitudes,and was concentrated at the altitude below 105 m.Nearly 30%of cultivated land in the area with slope below 9 degrees was double-season rice.The Dongting Lake area is the main producing area of double-season rice,whose area and cultivated land both occupy the highest proportions among the four major regional economic sectors in Hunan Province.

关 键 词：双季稻 遥感数据产品 地理空间分异 湖南 

分 类 号：S511[农业科学—作物学] TP751[自动化与计算机技术—检测技术与自动化装置]