CAJ | 학술논문

[目的]揭示采煤塌陷对贵州百里杜鹃林区土壤养分的影响。[方法]在选取典型对比样地的基础上，对百里杜鹃林区不同层次土壤进行了分层对比分析。[结果]结果表明，采煤塌陷后，百里杜鹃林区土壤酸性减弱，向中性趋近；土壤有机质含量有降低的趋势；土壤全量养分（全氮、全磷、全钾）含量有所提高；有效氮（铵态氮、硝态氮）含量总体提高，但速效磷、速效钾含量明显降低。[结论]采煤塌陷打破了百里杜鹃林区土壤养分的平衡，尤其是减少了有效磷、有效钾的供应。
[목적]게시채매탑함대귀주백리두견림구토양양분적영향。[방법]재선취전형대비양지적기출상，대백리두견림구불동층차토양진행료분층대비분석。[결과]결과표명，채매탑함후，백리두견림구토양산성감약，향중성추근；토양유궤질함량유강저적추세；토양전량양분（전담、전린、전갑）함량유소제고；유효담（안태담、초태담）함량총체제고，단속효린、속효갑함량명현강저。[결론]채매탑함타파료백리두견림구토양양분적평형，우기시감소료유효린、유효갑적공응。
Objective The aim was to re-veal the impact mechanism of coal min-ing collapse on soil nutrient of Hun-dred-mile Rhododendron Forest Zone of Guizhou. [Method]The soil of different levels were analyzed comparatively based on typical contrast plots. [Result] The results were summarized as follows, for the soil of Hundred-mile Rhododen-dron Forest Zone,after the occurrence of coal mining subsidence, the soil acidity was weaker than before, and tended to be neutral;the soil organic matter took a tendency to decrease;the soil total nutrient content (total nitro-gen,total phosphorus and total potassi-um) improved to some extent;and the soil available nitrogen content (ammoni-um nitrogen and nitrate nitrogen) over-all improved,but the content of avail-able phosphorus and available potassium significantly decreased. [Conclusion] G enerally speaking,coal m ining col-lapse broke the balance of soil nutrients of Hundred-mile Rhododendron Forest Zone of Guizhou,especially cased the decrease of available phosphorous and available potassium.