子午岭不同土地利用方式对土壤性质的影响
Effects of Land Use on Soil Properties in Ziwuling Region
查看参考文献16篇
|
文摘
|
通过野外调查和室内分析相结合的方法,研究子午岭次生林区不同土地利用方式下的土壤性质状况,分析土地利用状况与土壤质量之间的关系,结果表明:不同土地利用方式表层土壤有机质、全氮、全磷、pH值、脲酶、蔗糖酶和碱性磷酸酶含量或活性差异显著,农地主要土壤养分含量和酶活性较低,林地则较高.除pH值外,不同利用方式下土壤养分和酶活性均随土层深度的增加而逐渐减小.除土壤pH值外,不同利用方式下土壤有机质、全氮、全磷、铵态氮、脲酶、蔗糖酶、碱性磷酸酶和过氧化氢酶之间呈显著或极显著正相关性.以林地为对照的土壤退化指数表明农用地和撂荒翻耕地土壤质量退化显著,其表层(0～20 cm)土壤退化指数分别为44.86%和43.10%;撂荒未翻耕地深层(20～130 cm)土壤质量则有所提高. |
|
其他语种文摘
|
Land use exerts great influence on soil properties, including soil physical, chemical and biological properties, which in turn impact soil quality. In this paper, field investigation and laboratory analysis were conducted to reveal the relationship between land use conditions and changes of soil quality, which will provide valuable evidence for land management and eco-environment rebuilding. We studied major soil chemical properties and soil enzymatic activities under four land use conditions, i.e. forest land, farmland, ploughed abandoned land and unploughed abandoned land, in Ziwuling secondary forest area, and analyzed the relationship between land use and soil chemical and biological properties based on soil quality .The results showed that significant difference existed among soil organic matter, total nitrogen, total phosphorous contents, pH values, and activities of soil urease, invertase and alkaline-phosphatase in surface soils at different land use conditions. The major lower soil nutrients and enzymatic activities were observed in farmland, while the higher nutrients and enzymatic activities were observed in forest land. The major soil properties, exceptx pH values, were reduced with the increase of soil depth in soil profiles. The statistical analysis showed that significant or marked significant correlationship existed among soil organic matter, total nitrogen, total phosphorus, ammonia nitrogen, urease, invertase, alkaline-phosphatase and catalase. Soil degraded index (SQI), which was calculated based on forest area, indicated that soil quality has been greatly degraded in farmland and ploughed abandoned land. The soil degraded index in surface layer (0-20cm) were 44.86% and 43.10%, respectively. However, soil quality has been improved in deep layer soil (20-130cm) in unploughed abandoned land. |
|
来源
|
自然资源学报
,2006,21(6):965-972 【核心库】
|
|
关键词
|
土地利用
;
土壤性质
;
土壤质量
;
子午岭
|
|
地址
|
西北农林科技大学,资源环境学院, 陕西, 杨凌, 712100
|
|
语种
|
中文 |
|
文献类型
|
研究性论文 |
|
ISSN
|
1000-3037 |
|
学科
|
社会科学总论;农业基础科学 |
|
基金
|
西北农林科技大学研究生教育创新计划项目
;
西北农林科技大学创新团队建设计划
;
国家自然科学基金
|
|
文献收藏号
|
CSCD:2539714
|
参考文献 共
16
共1页
|
|
1.
赵其国. 土壤质量与持续环境Ⅰ:土壤质量的定义及评价方法.
土壤,1997(3):113-120
|
CSCD被引
196
次
|
|
|
|
|
2.
郭旭东. 低山丘陵区土地利用方式对土壤质量的影响—以河北省遵化市为例.
地理学报,2001,56(4):447-455
|
CSCD被引
102
次
|
|
|
|
|
3.
TurnerⅡB L.
Changes in Land Use and Land Cover:A Global Perspective,1994
|
CSCD被引
1
次
|
|
|
|
|
4.
廖晓勇. 三峡库区小流域土地利用方式对土壤肥力的影响.
生态环境,2005,14(1):99-101
|
CSCD被引
38
次
|
|
|
|
|
5.
朱祖祥.
土壤学,1983:276-279
|
CSCD被引
10
次
|
|
|
|
|
6.
高中贵. 经济发达区土地利用变化对土壤性质的影响 --以江苏省昆山市为例.
自然资源学报,2005,20(1):44-51
|
CSCD被引
23
次
|
|
|
|
|
7.
Hobbs R J. diversity and invasion:Implications for conservation.
Cons Biol,1992,6:324-327
|
CSCD被引
64
次
|
|
|
|
|
8.
查小春. 黄土丘陵林地土壤侵蚀与土壤性质变化.
地理学报,2003,58(3):464-470
|
CSCD被引
21
次
|
|
|
|
|
9.
郑粉莉. 林地开恳后坡面侵蚀过程与土壤养分流失的研究.
水土保持学报,2002,16(1):44-46
|
CSCD被引
20
次
|
|
|
|
|
10.
胡斌. 植被恢复措施对退化生态系统土壤酶活性及肥力的影响.
土壤学报,2002,39(4):604-608
|
CSCD被引
70
次
|
|
|
|
|
11.
Caravaca F. Re-establishment of Retama sphaerocarpa as a target species for reclamation of soil physical and biological properties in a semiarid Mediterranean land.
Forest Ecol Manag,2003,182:49-58
|
CSCD被引
30
次
|
|
|
|
|
12.
赵世伟. 子午岭北部不同植被类型土壤水分特征研究.
水土保持学报,2002,16(4):119-122
|
CSCD被引
83
次
|
|
|
|
|
13.
中科院南京土壤研究所.
土壤理化分析,1981
|
CSCD被引
7
次
|
|
|
|
|
14.
关松荫.
土壤酶及其研究法,1986
|
CSCD被引
2082
次
|
|
|
|
|
15.
Islam K R. Land use effects on soil quality in a tropical forest ecosystem of Bangladesh.
Agriculture,2000,79:9-16
|
CSCD被引
8
次
|
|
|
|
|
16.
Adejuwon J O. A comparison of soil properties under different land use types in a part of the Nigerian cocoa belt.
Catena,1988,15:319-331
|
CSCD被引
37
次
|
|
|
|
|
了解气象卫星更多信息，请访问