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| Properties of soil reservoir capacity in different forest land types in Minjiang River upper reaches of Fujian |
| Huang Rongzhen1, Yang Yusheng2, Xie Jinsheng3, Wang Weiming4, Zhang Jinchi1 |
1.College of Forest Resources and Environment, Nanjing Forestry University, 210037, Nanjing; 2.College of Geography Science, Fujian Normal
University, 350007; 3.College of Forest, Fujian Agriculture and Forestry University, 350002; 4.Fujian Soil and Water Conservation Experimental Station, 350003: Fuzhou: China |
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Abstract Bare land is taken as CK and Schima superba, Cunninghamia lanceolata and enclosing & tending land as study objects, in order to study the mechanism of forest soil reservoir on storing and regulating run-off. The results show that total capacity in Schima superba, Cunninghamia lanceolata and enclosing & tending land was 503.95, 471.62 and 451.48?mm respectively, which was 1.23, 1.15 and 1.10 times as high as that in the CK; Storage capacity in them was 326.87, 332.21 and 309.94mm, 1.23, 1.25 and 1.17 times as high as that in the CK respectively; Dead capacity in them was 114.29, 89.60 and 101.46mm respectively, 1.11, 0.87 and 0.99 times as high as that in the CK; Flood control capacity in them was 62.79, 49.81 and 40.08mm, 1.52, 1.21 and 0.97 times as high as that in the CK respectively; and maximal available water capacity in them was 389.66, 382.02 and 350.02mm, 1.27, 1.251.14 times as high as that in the CK respectively. Capacities of forest soil reservoir in different forest lands follow the rule, storage capacity>dead capacity>flood control capacity. Comparison with CK, the increasing of capacities of forest soil reservoir correlates with the improvement of forest growing to land soil structure and better coverage in the forest land.
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Received: 12 October 2004
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