CAJ | 학술논문

基于GIS和地统计学方法，以山东寿光古城镇为例，分析了两种利用方式下（大棚蔬菜和小麦-玉米轮作）表层（0-20 cm）土壤有机碳的空间变异特征及其影响因素，并分析了土壤有机碳含量与有效态微量元素含量之间的相关性。结果表明，研究区内大棚菜地有机碳平均含量高于小麦-玉米轮作农田，两者变异程度均为中等，受施肥、温度、灌溉、翻耕等人为因素的影响显著。菜地耕层土壤有机碳的变程（749 m）小于农田（1460 m），说明菜地有机碳空间变异程度高，这与菜地中施肥管理措施变异度更大有关。轮作区土壤有机碳空间分布模拟结果表明，研究区中部土壤有机碳含量较高，中东部和西部较低。大棚菜地土壤有机碳空间模拟结果表明，土壤有机碳较高值分布于研究区的东北、西北和东南区域，较低值分布在中西部北边位置。小麦-玉米轮作农田中有机碳存储量与有效Fe、Cu、B含量呈极显著正相关，与有效Mn呈极显著负相关；菜地土壤有机碳与微量元素有效态之间的相关性不明显。
기우GIS화지통계학방법，이산동수광고성진위례，분석료량충이용방식하（대붕소채화소맥-옥미륜작）표층（0-20 cm）토양유궤탄적공간변이특정급기영향인소，병분석료토양유궤탄함량여유효태미량원소함량지간적상관성。결과표명，연구구내대붕채지유궤탄평균함량고우소맥-옥미륜작농전，량자변이정도균위중등，수시비、온도、관개、번경등인위인소적영향현저。채지경층토양유궤탄적변정（749 m）소우농전（1460 m），설명채지유궤탄공간변이정도고，저여채지중시비관리조시변이도경대유관。륜작구토양유궤탄공간분포모의결과표명，연구구중부토양유궤탄함량교고，중동부화서부교저。대붕채지토양유궤탄공간모의결과표명，토양유궤탄교고치분포우연구구적동북、서북화동남구역，교저치분포재중서부북변위치。소맥-옥미륜작농전중유궤탄존저량여유효Fe、Cu、B함량정겁현저정상관，여유효Mn정겁현저부상관；채지토양유궤탄여미량원소유효태지간적상관성불명현。
Taking Shouguang City as an example , the spatial variation characteristics and the influence factors of soil organic carbon ( SOC) in the top 0-20 cm soil layer under greenhouse vegetables lands and wheat -maize rotation land were analyzed based on GIS and geostatistics methods , and the correlations between the contents of SOC and available trace elements were calculated .The result show that the average content of SOC in the greenhouse vegetable fields is higher than that of wheat -maize rotation fields in the studied area and the variations of SOC in the two fields are moderate and significantly influenced by fertilization , temperature, irrigation, tillage, etc.The variation range of SOC in vegetable fields (749 m) is less than that in farmlands (1460 m), indicating that the spatial variation of SOC in vegetable fields correlates stronger to fertilizer management than in vegetable fields.The simulation results of the SOC are higher in the middle , lower in the middle east and west in the grain fields, higher in the northeast , northwest and southeast , and lower in the northern part of Midwest in vegetable fields.The SOC storage is positively correlated with available Fe , Cu and B contents in the wheat-maize rotation fields and negatively correlated with available Mn , but there is no such a significant correlation in the vegetable fields.