CAJ | 학술논문

土壤是一个由生物和非生物组成的复杂综合体，肥力是土壤的本质和属性。土壤养分含量和土壤微生物特征是表示土壤肥力高低的重要指标，水土流失不仅导致土壤养分含量下降，而且对土壤微生物特征产生明显的影响，进而影响到土壤养分的循环和转化。本研究对华南赤红壤丘陵坡地不同侵蚀部位微生物特性的变异性进行了对比分析。结果表明：随着土壤侵蚀程度的加剧和植被的破坏，土壤微生物总数逐渐减少，土壤基础呼吸和土壤诱导呼吸显著下降。在没有草本植物的情况下，仅有人工荷木并不能起到明显的水土保持作用，近地表覆盖的草本植物应是水土保持植被建设必不可少植物类群。以此为华南赤红壤丘陵区土壤生态环境修复和水土保持提供科学依据。
토양시일개유생물화비생물조성적복잡종합체，비력시토양적본질화속성。토양양분함량화토양미생물특정시표시토양비력고저적중요지표，수토류실불부도치토양양분함량하강，이차대토양미생물특정산생명현적영향，진이영향도토양양분적순배화전화。본연구대화남적홍양구릉파지불동침식부위미생물특성적변이성진행료대비분석。결과표명：수착토양침식정도적가극화식피적파배，토양미생물총수축점감소，토양기출호흡화토양유도호흡현저하강。재몰유초본식물적정황하，부유인공하목병불능기도명현적수토보지작용，근지표복개적초본식물응시수토보지식피건설필불가소식물류군。이차위화남적홍양구릉구토양생태배경수복화수토보지제공과학의거。
Soil is composed by living and non-biological, soil fertility is the nature and properties .Soil nutrient contents and soil microbial characters are important indices for the evaluation of soil fertility. Soil nutrient decreased gradually and soil microbial characters varied because of Soil and water loss, which affected soil nutrients cycling and transformation. The variation of microbe on different erosion position of hilly Slope in the latusolic red soil region were studied. The result showed that with intensifying of soil erosion and vegetation destroyed, soil microbial quantity decreased gradually, and intensity of soil basal respiration and substrate induced respiration declined significantly. Under no grassland vegetation, artificial Schima superba can not conserved obviously soil and water. Grass vegetation should be very necessary in soil and water conservation. So provide a scientific basis for soil ecological environment restoration of Hilly Slope Land of Lateritic Red Soil in south China and soil and water conservation.