干旱区生态环境知识资源中心(Arid): 喀斯特石漠化治理区土壤养分综合评价与对比以贵州朝营和顶坛小流域为例

Arid

	喀斯特石漠化治理区土壤养分综合评价与对比以贵州朝营和顶坛小流域为例
其他题名	Comparative Study on Comprehensive Evaluation of Soil Nutrients in Rocky Desertification AreasA Case Study of Small Watersheds of Chaoying and Dingtan in Guizhou Province
	肖杰 1; 熊康宁1 ; 顾再柯 2; 王琦 1; 李开萍 1
来源期刊	水土保持研究
ISSN	1005-3409
出版年	2018
卷号	25 期号:2 页码:293-299
中文摘要	为揭示不同地貌和不同等级石漠化地土壤养分状况及其整体水平。通过分析土壤养分指标和运用数理统计确立最小数据集,以不同地貌的研究区和不同等级石漠化的治理模式地进行了评价和对比。结果表明:(1)人选最小数据集体系的指标为土壤pH值、全氮、有机质、速效钾,是影响土壤养分评价和植物生长所需养分的指标。(2)受不同石漠化治理模式影响,土壤养分累积效应明显,朝营小流域不同等级石漠化地评价分值大小为潜在0.729>轻度0.658>中度0.580>强度0.525,顶坛小流域则为轻度0.541>潜在0.515>中度0.501>强度0.341。(3)经过评价对比,朝营小流域土壤养分综合评价分值(0.673)大于顶坛小流域(0.478),两者受不同地貌、不同土层厚薄和土被连续性以及不同的石漠化治理模式等因素影响是明显的。随着石漠化治理模式不断优化和调整,朝营、顶坛小流域土壤养分的积累仍有上升的潜力。
英文摘要	In order to reveal the soil nutrient status and its overall level in rocky desertification areas with different landforms and grades,through the analysis of soil nutrient index and application of mathematical statistics, the minimum data set was established, and the soil nutrients were evaluated and compared in different geomorphic study areas and different degrees of rocky desertification. The results showed that: (1) the selected indexes of minimum data set were soil pH value,total nitrogen, organic matter and available potassium, which were the indexes to influence soil nutrient evaluation and required nutrients vegetation; (2) affected by different rocky desertification control models, soil nutrient accumulation effect was obvious, the evaluation score of Chaoying small watershed in different rocky desertification area was in the sequence: potential 0.729>mild 0.658>moderate 0.580>strong 0.525,while the Dingtan small watershed was in the order: mild 0.541>potential 0.515>moderate 0.501 >strong 0.341; (3) through evaluation comparison, the soil nutrient comprehensive grade of Chaoying small watershed (0.673) was larger than soil nutrient comprehensive grade (0.478) of Dingtan; both were affected by different landforms, soil layer thickness, regolith continuities and rocky desertification governance model obviously. With the optimization and adjustment of rocky desertification governance model, the soil nutrient accumulation in Chaoying and Dingtan small watershed still has the potential to rise.
中文关键词	石漠化 ; 土壤养分评价 ; 最小数据集 ; 小流域
英文关键词	rocky desertification soil nutrient evaluation minimum data set small watershed
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:6158236
来源机构	贵州师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/238343
作者单位	1.贵州师范大学喀斯特研究院, 国家喀斯特石漠化防治工程技术研究中心, 贵阳, 贵州 550001, 中国; 2.贵州省水土保持监测总站, 贵阳, 贵州 550001, 中国
推荐引用方式 GB/T 7714	肖杰,熊康宁,顾再柯,等. 喀斯特石漠化治理区土壤养分综合评价与对比以贵州朝营和顶坛小流域为例[J]. 贵州师范大学,2018,25(2):293-299.
APA	肖杰,熊康宁,顾再柯,王琦,&李开萍.(2018).喀斯特石漠化治理区土壤养分综合评价与对比以贵州朝营和顶坛小流域为例.水土保持研究,25(2),293-299.
MLA	肖杰,et al."喀斯特石漠化治理区土壤养分综合评价与对比以贵州朝营和顶坛小流域为例".水土保持研究 25.2(2018):293-299.