骚扰
发表于 2025-3-28 16:55:34
Fragipan Horizon, restricting layer has a geogenic origin due to limited weathering or lithological discontinuities. The pedogenic accumulation of clay, carbonates, gypsum, iron, silica, or a combination of these can also lead to the formation of a hard and dense horizon. Some root-restricting layers are the result
sigmoid-colon
发表于 2025-3-28 19:37:09
Gypsic and Petrogypsic Horizons,v and Verheye 1996), (2) are useful for paleoclimatic interpretations (Khademi and Mermut 2003; Buck and Van Hoesen 2005), (3) enable an understanding of the roles of parent material and climate in soil formation (Carter and Inskeep 1988; Taimeh 1992), (4) elucidate the desertification process (Flor
Coordinate
发表于 2025-3-29 00:30:25
http://reply.papertrans.cn/88/8713/871241/871241_43.png
外表读作
发表于 2025-3-29 04:46:05
http://reply.papertrans.cn/88/8713/871241/871241_44.png
冥界三河
发表于 2025-3-29 08:20:53
http://reply.papertrans.cn/88/8713/871241/871241_45.png
连锁,连串
发表于 2025-3-29 13:17:45
Anthropic and Plaggen Epipedons: Products of Human Disturbance, Gelisols, Inceptisols, and Mollisols. The pachic horizon may be umbric or mollic, is thick (≥40 to ≥60 cm), contains abundant SOC (≥6 %), and is used only in the Andisols, Inceptisols, and Mollisols.
faultfinder
发表于 2025-3-29 16:44:36
Mollic Epipedon,50 % from soil erosion and increased decomposition and cropping (Mann 1985; Mikhailova et al. 2000; Liu et al. 2010; Fenton 2012; David et al. 2009). As a result some Mollisols no longer have a mollic epipedon (Veenstra and Burras 2002; Fenton 2012).
肉体
发表于 2025-3-29 22:17:31
Umbric Epipedon,ighest level in the Umbrisols. Soils with umbric epipedons have been characterized in CA (Popenoe et al. 1992), Pennsylvania (PA; Waltman and Ciolkosz 1995), Wisconsin (Quideau and Bockheim 1996), and North Carolina (NC; Richter et al. 1989; Vepraskas and Caldwell 2008).
我还要背着他
发表于 2025-3-29 23:58:47
http://reply.papertrans.cn/88/8713/871241/871241_49.png
negligence
发表于 2025-3-30 07:06:37
http://reply.papertrans.cn/88/8713/871241/871241_50.png