Scientia Silvae Sinicae ›› 1999, Vol. 35 ›› Issue (3): 16-21.
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Fei Li,Yong rui Chen
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Abstract:
In a small watershed with an area 21370 m2 covered, with the mixed forest of Pinus massoninana and broad-leaved trees, the cycling process of K、P、Ca、Mg、Zn、Cu、Fe and Mn, including their accumulation, retention, leaching, return, uptake and average budget has been studied from 1993 to 1995.The experimental results show that the total amount of mineral elements in the rainfall input into the mixed forest ecosystem was more than the output from the system in the runoff from 1993 to 1995, and the stand was on positive succession with higher using and cycling efficiencies.
Key words: Small watersheds, Pinus massoninana Mixed forest, Mineral nutrient, Cycling
Fei Li,Yong rui Chen. A STUDY ON THE NUTRIENT CYCLING OF PINUS MASSONIANA FOREST MIXED WITH BROAD-LEAVED TREES[J]. Scientia Silvae Sinicae, 1999, 35(3): 16-21.
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Table 1
The structure and feature of the stand"
Table 2
The accumulation of mineral elements in the stand"
Table 3
Average throughfall, stem flow and leaching amount of mineral elements in the stand from 1993 to 1995"
Table 4
Average little and return amount of mineral elements in the stand from 1993 to 1995"
Table 5
Average retention and uptake amount of mineral elements in the stand from 1993 to 1995"
Table 6
Average budget of mineral elements in the stand from 1993 to 1995"
Table 7
Average turnover, using and cycling efficiencies of mineral elements in the stand from 1993 to 1995"
