草业科学2011，Vol.28Issue(8)：1416-1419,4.
封育对荒漠退化草地土壤主要养分的影响初探
A tentative study of influences of fencing on soil nutrients of degradation desert grassland
摘要
Abstract
The influence of short-term fencing on soil nutrients was discussed by comparatively analyzing the change of nutrients in the 0-20 cm soil layer inside and outside of fences at the degenerated desert grassland of Xinjiang. The results showed that the soil Olsen-P content was depressed inside fences. The topsoil available N contents of fenced moderate degraded and fenced severe degraded grassland were de- pressed~ while that of fenced extreme degraded grassland was increased. After fencing, soil organic matter content of moderate degraded and extreme degraded grassland were increased. It can be seen due to the lo- cal harsh natural conditions and levels of grassland degradation were different. The effect of short-term fences on restoration of soil nutrients except Olsen-P content was depressed consistently. The changes of the soil organic matter, available N and available K were not obvious. For that reason, only through long- term monitoring, the effect of fencing on soil nutrients will be evaluated objectively.关键词
荒漠草地/退化/封育/土壤养分Key words
desert grassland/degradation~ fencing/soil nutrients分类
农业科技引用本文复制引用
范燕敏,武红旗,靳瑰丽,古丽拜克热木,努尔比牙..封育对荒漠退化草地土壤主要养分的影响初探[J].草业科学,2011,28(8):1416-1419,4.基金项目
新疆草地资源与生态重点实验室开放项目（XIDX0209-2007-03）、 （）
自治区土壤学重点学科基金. （）
