CAJ | 학술논문

以福建省永安市天宝岩自然保护区不同人为经营方式的毛竹林为研究对象,对毛竹林Ⅰ(挖笋+劈草)、Ⅱ(挖笋+劈草+专用肥)和Ⅲ(挖笋+劈草+专用肥+灌水)的养分元素分布格局进行了研究.结果表明,施肥、施肥+灌水等经营方式增加了植被层的养分累积量质量分数,降低了土壤层养分累积量质量分数,平衡乔木层和土壤层碳氮贮量是森林实现科学经营的关键.施肥+灌水虽然明显增加了毛竹林系统养分元素的累积绝对量,但是增加最多的是K元素,而N、P元素累计量呈降低趋势,氮、磷元素是植物生长发育的必需元素,是系统生产力构成的重要因素,氮、磷元素的减少可能损害竹林持续立地生产能力.3种林分主要养分元素在不同层次的排列顺序均为土壤层>乔木层>凋落物层>灌木层>草本层,土壤层养分累积量占养分总累积量99%以上,植被层中乔木层累积量最高,其在植被层中的质量分数高于85%.
이복건성영안시천보암자연보호구불동인위경영방식적모죽림위연구대상,대모죽림Ⅰ(알순+벽초)、Ⅱ(알순+벽초+전용비)화Ⅲ(알순+벽초+전용비+관수)적양분원소분포격국진행료연구.결과표명,시비、시비+관수등경영방식증가료식피층적양분루적량질량분수,강저료토양층양분루적량질량분수,평형교목층화토양층탄담저량시삼림실현과학경영적관건.시비+관수수연명현증가료모죽림계통양분원소적루적절대량,단시증가최다적시K원소,이N、P원소루계량정강저추세,담、린원소시식물생장발육적필수원소,시계통생산력구성적중요인소,담、린원소적감소가능손해죽림지속입지생산능력.3충림분주요양분원소재불동층차적배렬순서균위토양층>교목층>조락물층>관목층>초본층,토양층양분루적량점양분총루적량99%이상,식피층중교목층루적량최고,기재식피층중적질량분수고우85%.
We used Phyllestachys edulis forest under different types of management and protection in Tianbaoyan Nature Reserve of Yong’an city, Fujian province, as research objective, to investigate the nutrient distribution pattern in P. edulis forest I (digging bamboo shoots+weeding), II (digging bamboo shoots+weeding+fertilizer) and III (digging shoots+weeding+fertilizer+irrigation).The results showed that the proportion of accumulated nutrient amount in vegetable layer increased, while nutrient accumulated proportion in soil layer de-creased in forest II and III. The key to the scientific management was how to balance the nutrients storage in tree layer and soil layer. The amount of accumulated nutrients in forest III increased significantly. However, the increment was attributed to the increase in potassium, while the nitrogen and phosphorus storages were decreased. It was an essential element for nitrogen and phosphorus to the plant growth and development. The long-term productivity of bamboo forest may be damaged with the reduction of nitrogen and phosphorus. The accumulation of nutrient elements in different forest layers was in the order of soil layer>tree layer>litter layer>shrub layer>herb layer. The proportion of soil layer nutrient accumulation accounted for more than 99%of total nutrient ac-cumulation. The accumulation of nutrient elements in tree layer was highest among those vegetable layers, and accounted for above 85%nutrient element accumulation.