干旱区生态环境知识资源中心(Arid): 黄土高原旱地土壤质量评价指标研究

Arid

	黄土高原旱地土壤质量评价指标研究
其他题名	Assessment indicators of soil quality in rain-fed areas of the Loess Plateau
	罗珠珠 1; 黄高宝2 ; 蔡立群 1; 张仁陟 1; 李玲玲 2; 谢军红 2
来源期刊	中国生态农业学报
ISSN	1671-3990
出版年	2012
卷号	20 期号:2 页码:127-137
中文摘要	基于设置在陇中黄土高原半干旱区的长期定位试验,运用综合评价模型,定量评价了小麦豌豆双序列轮作系统6种不同耕作方式对土壤质量的影响。结果表明,采用加权综合法和加乘法则对土壤质量进行综合评价,能够较好地反映土壤质量的实际情况,敏感地反映耕作方式对土壤质量的影响。运用逐步判别分析法对6种不同耕作方式[传统耕作(T)、免耕作(NT)、传统耕作秸秆还田(TS)、免耕秸秆覆盖(NTS)、传统耕作地膜覆盖(TP)、免耕地膜覆盖(NTP)]下29项土壤属性指标进行筛选,建立了包括团粒结构、全氮、速效氮、有机质、蔗糖酶活性、作物产量、种植纯收益和产投比8项因子的简化评价指标体系。原始评价指标体系下2种轮作序列土壤质量指数排序均为NTS>TS>NTP>NT>TP>T;简化评价指标体系下豌豆小麦轮作序列土壤质量指数排序为NTS>TS>NTP>NT>T>TP,而小麦豌豆轮作序列土壤质量指数排序为NTS>TS>NT>NTP>T>TP。进一步相关分析和方差分析表明,应用逐步判别分析法建立的简化指标体系具有较高的代表性,可适用于黄土高原半干旱区土壤质量评价。
英文摘要	Based on long-term field experiments at Dingxi in the western Loess Plateau,the effects of different agricultural meas-ures on soil quality were studied using an integrated assessment model.A total of 6 agricultural measures with 2 tillage systems and 3 ground-cover forms were used.The agricultural measured included conventional tillage(T),no-tillage(NT),conventional tillage with straw incorporation(TS),no-tillage with straw mulching(NTS),conventional tillage with plastic-film mulch(TP) and no-tillage with plastic-film mulch(NTP).The experiment was conducted in two rotation sequences.Sequence 1 started with pea followed by spring wheat(PW) whereas sequence 2 started with spring wheat followed by field pea(WP).The results showed that soil qual-ity evaluation with integrated-weighted and addition-multiplication methods reasonably reflected actual soil conditions,and the effect of tillage variations on soil quality.The 8 most sensitive indicators were selected from a total of 29 assessment indictors vial dis-criminative analysis.The selected indicators were used to evaluate soil physical quality,fertility,health and land productivity in the semi-arid areas of the Loess Plateau.These 8 indicators included soil aggregates,organic matter,total nitrogen,available nitrogen,invertase activity,grain yield,net income and output/input ratio.Based on the 29 indicators,the order of soil quality index(SQI) ranked from high to low was NTS,TS,NTP,NT,TP and T in both rotation sequences.Again based on the 8 indicators,the orders of SQI ranked from high to low were NTS,TS,NTP,NT,T and TP in the PW rotation sequence,and NTS,TS,NT,NTP,T and TP in the WP rotation sequence.The results of the 2 assessment systems were similar and highly correlated.This indicated that the 8 indicators were sufficiently representative of the soil conditions in the western Loess Plateau.
中文关键词	黄土高原 ; 耕作方式 ; 小麦-豌豆轮作 ; 土壤质量 ; 土壤健康 ; 评价指标
英文关键词	Loess Plateau Tillage system Wheat/pea rotation Soil quality Soil health Assessment indicator
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:4464963
来源机构	甘肃农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/229087
作者单位	1.甘肃农业大学资源与环境学院, 甘肃省干旱生境作物学重点实验室, 兰州, 甘肃 730070, 中国; 2.甘肃农业大学农学院, 甘肃省干旱生境作物学重点实验室, 兰州, 甘肃 730070, 中国
推荐引用方式 GB/T 7714	罗珠珠,黄高宝,蔡立群,等. 黄土高原旱地土壤质量评价指标研究[J]. 甘肃农业大学,2012,20(2):127-137.
APA	罗珠珠,黄高宝,蔡立群,张仁陟,李玲玲,&谢军红.(2012).黄土高原旱地土壤质量评价指标研究.中国生态农业学报,20(2),127-137.
MLA	罗珠珠,et al."黄土高原旱地土壤质量评价指标研究".中国生态农业学报 20.2(2012):127-137.