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首页> 外文会议>International Peat Congress; 20040606-11; Tampere(FI) >PREVENTION OF DETRIMENTAL EFFECTS OF FORESTRY OPERATIONS ON WATER BODIES USING BUFFERS CREATED FROM DRAINED PEATLANDS
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PREVENTION OF DETRIMENTAL EFFECTS OF FORESTRY OPERATIONS ON WATER BODIES USING BUFFERS CREATED FROM DRAINED PEATLANDS

机译：利用从流失的泥炭地培育的缓冲液，防止林业经营对水体的有害影响

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摘要

The aims of this study were to identify and quantify the main biological and geochemical processes connecting with N and P retention in the restored peatland buffer. N and P was added continuously during June" August in 1999, applying Ca(NO_3)_2 (110 kg Ca; 90 kg N ha"~1) and K_3PO_4 (38 kg K; 30 kg P ha"~1) water solution in the experimental area through a feeder ditch during the growing season. Only ca. 0.5% of added N and only ca. 7% of added P was leached through the buffer during the period 1999-2001. The results showed that ca. 15% of added N removed in the gaseous form and ca. 15% and 70% were retained in the microbial biomass and in the vegetation during the first year after addition, respectively. For the added P the retention percentages are ca. 25%, 25% and 43% in the microbial biomass, vegetation and peat matrix, respectively.
机译：这项研究的目的是确定和量化与恢复的泥炭地缓冲区中的氮和磷保留有关的主要生物和地球化学过程。在1999年8月的6月中连续添加N和P，并在其中加入Ca（NO_3）_2（110 kg Ca; 90 kg N ha“〜1）和K_3PO_4（38 kg K; 30 kg P ha”〜1）水溶液。在1999-2001年期间，通过生长沟中的饲草沟进入试验区，只有大约0.5％的氮和大约7％的磷通过缓冲液浸出。添加后以气态形式去除的氮，在添加后的第一年中分别约有15％和70％保留在微生物生物量和植被中，添加的P的保留率分别为25％，25％和70％。微生物生物量，植被和泥炭基质中分别占43％。

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