旱地甘蔗不同类型土壤各耕层水分特征常数分析——以开远、元江为例  

Analysis of Topsoil Moisture Feature of Different Soils on Dry Land Sugarcane: Taken Kaiyuan and Yuanjiang as Example

作　　者：刀静梅[1,2] 樊仙[1,2] 赵俊[1,2] 张跃彬[1,2] 刘少春[1,2] 郭家文[1,2] 沈石妍 邓军[1,2] 高欣欣[1,2] 

机构地区：[1]云南省农业科学院甘蔗研究所,云南开远661600 [2]云南省甘蔗遗传改良重点实验室,云南开远661699

出　　处：《西南农业学报》2017年第2期389-393,共5页Southwest China Journal of Agricultural Sciences

基　　金：国家甘蔗产业技术体系(CARS-20-3-4);云南省现代农业甘蔗产业技术体系甘蔗轻简高效生产技术研究及应用(2015ZA004)

摘　　要：文章研究了地处低纬高原季风气候的元江和亚热带高原季风气候的开远2个地区的旱地甘蔗土壤各耕层的水分特征常数,结果表明,开远地区土壤各土层的田间持水量平均为285 g/kg,元江地区平均为204 g/kg。在研究区域各土层中最大田间持水量出现在0~20 cm的耕作层,随土层的增加呈减小趋势;开远各土层平均容重为1.02~1.41 g/cm^3,元江各土层平均容重为1.35~1.66 g/cm^3,土壤容重随深度增加而增大。Topsoil moisture feature of Yuanjiang （Low latitude plateau monsoon climate） and Kaiyuan （Subtropical plateau monsoon cli- mate） were studied in the paper. The results showed that the average field capacity of different soil layers was 285 g/kg in Kaiyuan and 204 g/kg in Yuanjiang. Maximum field capacity of different soil layers in the study area was plough layer （0 -20 cm）, and it was reduced with the increase of depth. The average volume weight of different soil layers was 1.02 - 1.41 g/cm^3 in Kaiyuan and 1.35 - 1.66 g/cm^3 in Yuanjiang, and it was increased with the increase of depth.

关 键 词：元江 开远 土壤 水分特征常数 

分 类 号：S151.9[农业科学—土壤学]