4) chemical composition of plant residues
Chemical composition of plant residues (chemical composition of litter) affect the retention of carbon storage in the soil. (Carrillo et, al.2011) because each plant will have a different chemical composition. By the organic compounds in plants include cellulose (cellulose) hae micelle high amylose (hemicellulose) lignin (lignin) protein (protein) flour and sugar. (starch and.Because the compound type aromatic ring as the core of the molecules. The lignin has a molecular structure that is complex and difficult degradation, often found in plants that are older. (Department of soil science.2548), the study of Diaz-Pines et al. (2011) found that organic matter found in the area planted a pine (Pinus sylvestris L.) is a durable organic compounds on degradation than organic matter found in the area of plant genera and oak. The area plant genera oak (Pyranean OakQuercus pyrenaica.So the soil in the area planted a pine had higher carbon sequestration (95-140 Mg HA-1) soil in the area grow plants genera oak (40-80 Mg HA-1) also. Chemical element also depends on the age of plants by legumes.Amino acid and sugar accumulation in the stem. Why is decomposed by soil microorganisms is easy. The soil in the area have a carbon sequestration, but less in the genus oak (OAT) or wheat straw (wheat straw) older, a protein.But the lignin is accumulated. Which are resistant to degradation of soil microorganisms. The carbon sequestration in the soil (Hoorman, and Islam2010)
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