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供试土壤,采自江西进贤县。成土母质为第四纪残坡积相红色粘土及其沟谷填充物,质地粘重。共有三个剖面,剖面1属淹育型水稻土,分布于丘陵沟谷两侧上部的高嗙田部位,常与红壤旱地(或荒地)相毗邻,剖面发育层段结构为A—P—(W)—C。剖面2属潴育型水稻土,广泛分布于丘陵沟谷中下部及平坦开阔地段,为A—P—W—Wc。剖面3属潜育型水稻土,多分布于丘陵沟谷的末端,地势低洼的平畈田部位,
Test soil, collected from Jinxian County in Jiangxi Province. The parent material is Quaternary sedimentary facies phase red clay and its filling, texture sticky weight. There are three sections in total. Section 1 is a submerged paddy soil distributed in the upper part of the upper part of both sides of the hilly valley, often adjoining the red soil dryland (or wasteland). The section structure of the section is A-P- (W) C. Profile 2 is a type of paddy-type paddy soil, widely distributed in the hilly valley in the lower and flat open area, A-P-W-Wc. Profile 3 is a subsoil paddy soil, mostly distributed in the ends of hilly valleys, low-lying flat ridge area,