Changes in ecosystem carbon pool and soil CO 2 flux following post-mine reclamation in dry tropical environment, India

Slow Recovery of Major Soil Nutrient Pools during Reclamation in a Sub-Alpine Copper Mine Area, Southeastern Edge of the Tibetan Plateau, Sichuan Province, SW China

“…More than that, the P content in soil tends to decrease with long-term pedogenesis [43]. Consequently, similar to our results, increasing C and N and decreasing soil P with the pedogenic process have been observed in many natural and reclaimed ecosystems in various climate types [7,[14][15][16]37,44,45].…”

“…For example, soil bulk density decreased with increasing SOC along natural chronosequences in the Tibetan Plateau [37] and in the European Alps [38]. The decline of bulk density with the restoration period has also been reported in many recovered ecosystems [8,14,39,40]. The increase in pH of the RSP compared with the CKSP (Table 1) is probably caused by the deposition of base cations leached from the upper RS.…”

“…Soil nutrients have been identified as the most critical properties when evaluating mine soil quality [5,[10][11][12]. As a consequence, information on the variation in soil nutrients during reclamation is crucial to achieve successful reclamation [13].A large number of studies have focused on the dynamics of soil physical, chemical, and biological properties during reclamation in several climate types [8,[14][15][16][17][18][19][20][21]. These studies have estimated the accumulation rates of soil organic C (SOC), total N (TN), and available C, N, and phosphorus (P), analyzed the major driving factors affecting variation in the nutrients, and discussed the relationships between soil development and revegetation.…”

“…These studies have estimated the accumulation rates of soil organic C (SOC), total N (TN), and available C, N, and phosphorus (P), analyzed the major driving factors affecting variation in the nutrients, and discussed the relationships between soil development and revegetation. However, most of the reclaimed mine areas in these studies are located in temperate [8,16,17,19], sub-tropical, and tropical zones [14,15,18,20,21]. Hardly any research has focused on the recovery of major soil nutrients during reclamation in sub-alpine areas.Sub-alpine regions are prevalently characterized by relatively low temperatures, short growing season, and intensive freeze-thaw cycles [22].…”

“…A large number of studies have focused on the dynamics of soil physical, chemical, and biological properties during reclamation in several climate types [8,[14][15][16][17][18][19][20][21]. These studies have estimated the accumulation rates of soil organic C (SOC), total N (TN), and available C, N, and phosphorus (P), analyzed the major driving factors affecting variation in the nutrients, and discussed the relationships between soil development and revegetation.…”