【摘要】 <正> 九宫山区在湖北省的南部,地处幕阜山脉中段,北纬29°20′—29°25′,东经114°33′—114°43′。最高点海拔为1543米。笔者曾于1983年,从通山县九宫山区的东北向西南方向,经横石→中西港→内西港→狮子坪→一天门→铜鼓包一线,对九宫山土壤的垂直分布进行了考察,并选取代表性土样进行了理化性状的分析研究。兹将研究结果报道于后,以期为综合开发本地区的资源提供参考资料,并为中弧热带向北亚热带过渡地带的土壤分类提供一定的依据。一、成土条件九宫山区地处中亚热带北部,海拔500米以下的地带,年平均气温为16.3℃,≥10℃积温为5167℃,年平均降雨量为1484.7毫米,有明显的干湿季,全年雨量的70—80%集中在更多还原

【Abstract】 The fundamental characteristics and vertical distribution of Jiugong mountain regions located in southeast Hubei province were investigated. Soil formation conditions including plants, landform, parent material and climate factors from northeast to southwest and down to up in Jingong mountain regions were observed and studied.According to different altitudes,eleven samples of four soil profilcs derived from similar parent material were collected, we studied the classification of soil particles and mechanical analysis, clay mineralogical and chemical composition, agrochemical properties and micromorphological characteristics of these soils. In Jingong mountain regions, from the foot to the summit of the mountain, we suggest that the soil change from red earth, mountain yellow-red earth to mountain yellow-brown earth, and finally to mountain shrubby meadow soil.Based on the data and research results, this paper deals with some aspects about interira properties and classification of mountain yellow-red rth.we discuss also the general micromorphological characteristics of mountain soil and special micromorphological features of each soil. Finally, we make some suggestions about utilization of soil resources in Jiugong mountain regions.更多还原