干旱区生态环境知识资源中心(Arid): 喀斯特山区不同石漠化等级下土壤养分贮量与价值评估以乌箐、偏岩等岩溶小流域为例

Arid

	喀斯特山区不同石漠化等级下土壤养分贮量与价值评估以乌箐、偏岩等岩溶小流域为例
其他题名	Assessment on the storage and value of soil nutrient under different grade of rocky desert in karst hilly region: A case study in small karst watersheds Wuqing and Pianyan of Guizhou Province
	王月容; 卢琦; 周金星; 崔明
来源期刊	中国岩溶
ISSN	1001-4810
出版年	2012
卷号	31 期号:1 页码:40-45
中文摘要	为探讨石漠化等级对土壤养分贮量与经济价值的影响,以贵州省金沙县喀斯特山区无石漠化农耕地(Ⅰ)为对照,在研究潜在(Ⅱ)、轻度(Ⅲ)、中度(Ⅳ)、重度(Ⅴ)石漠化土壤养分含量变化的基础上,采用土壤养分库贮量计算方法和价值替代法计算评估了不同石漠化等级下土壤养分贮量及其潜在价值。结果表明:(1)0~40cm土层有机质、全氮、水解氮、全磷、有效磷、全钾、速效钾含量分别为32.31~104.12g/kg、1.35~2.87g/kg、76.90~124.00mg/kg、0.49~1.12g/kg、1.03~10.71mg/kg,12.25~26.22g/kg、114.35~245.35mg/kg;(2)土壤养分总贮量和有机质、全氮、全磷、全钾贮量依次为3.79~61.41t/hm~2和2.55~48.56t/hm~2、0.13~1.36t/hm~2、0.04~0.52t/hm~2、1.07~10.97t/hm~2;(3)土壤养分总价值和有机质、全氮、全磷、全钾价值分别为0.86~9.80万元/hm~2和0.08~1.55万元/hm~2、0.29~3.08万元/hm~2、0.04~0.53万元/hm~2、0.45~4.64万元/hm~2;(4)土壤养分贮量、价值均以Ⅰ最高,Ⅴ最低,随着石漠化程度加剧,土壤养分含量、贮量和价值均下降。
英文摘要	In order to discuss the impacts of different grades of rocky desert on soil nutrient storage and economic value,the soil nutrient storage and its potential value in different grades of rocky deserts are assessed by means of soil nutrient pool calculation method and value substitution method.The basis of the assessment in this paper is the studying on the variations of soil nutrient contents in rocky deserts with potential desertification(Ⅱ),mild desertification(Ⅲ) and moderate desertification(Ⅳ) as well as severe desertification(Ⅴ) in comparison to the farmland without karst desertification(Ⅰ).The results show that,firstly the contents of organic matter(OM),total N(TN),available N(AN),total P(TP),available P(AP),total K(TK) and available K(AK) of soil in 0 to 40 cm depth is 32.31~104.12 g/kg,1.35~2.87 g/kg,76.90~124.00 mg/kg,0.49~1.12 g/kg,1.03~10.71 mg/kg,12.25~26.22 g/kg and 114.35~245.35 mg/kg respectively;secondly,the storages of total soil nutrients,OM,TN,TP and TK is 3.79~61.41 t/hm~2,2.55~48.56 t/hm2,0.13~1.36 t/hm~2,0.04~0.52 t/hm~2 and 1.07~10.97 t/hm~2 respectively;thirdly,the values of total soil nutrients,OM,TN,TP and TK is 0.86~9.80104 yuan/hm~2,0.08~1.55104 yuan/hm~2,0.29~3.08104 yuan/hm~2,0.04~0.53104 yuan/hm~2 and 0.45~4.64*104 yuan/hm~2 respectively;fourthly,soil nutrient storage and value are the highest in grade Ⅰ and lowest in grade Ⅴ,and the content,storage and value of soil nutrient decrease with the aggravating of rocky desertification.
中文关键词	石漠化 ; 土壤养分贮量 ; 土壤养分价值 ; 喀斯特
英文关键词	rocky desertification soil nutrient storage soil nutrient value karst
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:4522461
来源机构	中国林业科学研究院荒漠化研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/229122
作者单位	中国林业科学研究院荒漠化研究所, 北京 100091, 中国
推荐引用方式 GB/T 7714	王月容,卢琦,周金星,等. 喀斯特山区不同石漠化等级下土壤养分贮量与价值评估以乌箐、偏岩等岩溶小流域为例[J]. 中国林业科学研究院荒漠化研究所,2012,31(1):40-45.
APA	王月容,卢琦,周金星,&崔明.(2012).喀斯特山区不同石漠化等级下土壤养分贮量与价值评估以乌箐、偏岩等岩溶小流域为例.中国岩溶,31(1),40-45.
MLA	王月容,et al."喀斯特山区不同石漠化等级下土壤养分贮量与价值评估以乌箐、偏岩等岩溶小流域为例".中国岩溶 31.1(2012):40-45.