川北山区坡耕地土壤活性有机碳对土壤侵蚀的响应
Response of Soil Labile Organic Carbon to Soil Erosion on Slope Farmland in Mountainous Area of Northern Sichuan
查看参考文献19篇
|
文摘
|
为探明侵蚀对坡耕地土壤活性有机碳的影响,利用~(137) Cs示踪技术,并结合土壤理化分析,研究了川北山区坡耕地土壤侵蚀所引起的土壤再分配对土壤有机碳与活性有机碳空间变异性的影响。结果表明,川北山区坡耕地土壤侵蚀是水蚀和耕作侵蚀共同作用的结果,强烈的耕作导致坡上部发生严重的土壤侵蚀;侵蚀对坡耕地土壤有机碳与活性有机碳分布影响较大,土壤有机碳与活性有机碳含量与~(137) Cs含量呈显著正相关,坡上部土壤有机碳与活性有机碳含量贫瘠,而在坡下部相对富集。因此,山区坡耕地土壤肥力的空间分布特征在今后的土地施肥管理中应引起关注。 |
|
其他语种文摘
|
In order to better understand the effects of soil erosion on soil labile organic carbon of slope farmland,we studied impacts of soil redistribution caused by soil erosion on spatial variations of soil organic carbon and labile organic carbon in sloping farmland in mountainous area of northern Sichuan,China,by using ~(137)Cs tracer technique and analyzing soil physicochemical properties.The results showed that in mountainous area of northern Sichuan,both water erosion and tillage erosion contributed to soil erosion on slope farmland. The lowest ~(137)Cs concentrations were found at the top of sloping farmland,showing that intensive tillage caused severe erosion at upper slope positions.Distribution of soil organic carbon and labile organic carbon were significantly affected by soil erosion,and contents of soil organic carbon and labile organic carbon showed significant positive correlations with ~(137)Cs concentration.The contents of soil organic carbon and labile organic carbon were lower at upper and middle slope positions(where ~(137)Cs concentrations were lower)than at lower slope positions(where ~(137)Cs concentrations were higher).Therefore,distribution variation of soil fertility should be considered in fertilization management strategies of sloping farmland in mountainous area. |
|
来源
|
水土保持学报
,2015,29(4):57-60,126 【核心库】
|
|
DOI
|
10.13870/j.cnki.stbcxb.2015.04.012
|
|
关键词
|
~(137) Cs示踪
;
土壤侵蚀
;
活性有机碳
;
坡耕地
|
|
地址
|
1.
中国科学院水利部成都山地灾害与环境研究所, 成都, 610041
2.
四川省农业科学院土壤肥料研究所, 成都, 610066
3.
广元市烟草公司, 四川, 广元, 628017
|
|
语种
|
中文 |
|
文献类型
|
研究性论文 |
|
ISSN
|
1009-2242 |
|
学科
|
农业基础科学 |
|
基金
|
国家973计划
;
国家公益性行业（农业）科研专项
;
四川省烟草公司科技项目
;
四川省农业科学院青年科学基金
|
|
文献收藏号
|
CSCD:5505482
|
参考文献 共
19
共1页
|
|
1.
黄成敏. 四川紫色土退化的分类与分区.
山地研究,1993,11(4):201-208
|
被引
8
次
|
|
|
|
|
2.
Zhang J H. Effect of terrace forms on water and tillage erosion on a hilly landscape in the Yangtze River Basin,China.
Geomorphology,2014,216:114-124
|
被引
8
次
|
|
|
|
|
3.
苏正安. 紫色土坡耕地土壤物理性质空间变异对土壤侵蚀的响应.
农业工程学报,2009,25(5):54-60
|
被引
21
次
|
|
|
|
|
4.
宋想斌. 壤中流对紫色土坡面养分流失影响研究进展.
云南农业大学学报,2015,30(2):311-316
|
被引
3
次
|
|
|
|
|
5.
Li F C. Changes in SOC and Nutrients under Intensive Tillage in Two Types of Slope Landscapes.
Journal of Mountain Science,2012,9(1):67-76
|
被引
9
次
|
|
|
|
|
6.
Pan G X. The role of soil organic matter in maintaining the productivity and yield stability of cereals in China.
Agriculture,Ecosystems & Environment,2009,192(1/3):344-348
|
被引
64
次
|
|
|
|
|
7.
张旭博. 全球气候变化下中国农田土壤碳库未来变化.
中国农业科学,2014,47(23):4648-4657
|
被引
17
次
|
|
|
|
|
8.
Johns M M. Soil organic matter testing and labile carbon identification by carbonaceous resin capsules.
Soil Science Society of America Journal,1994,58:751-758
|
被引
16
次
|
|
|
|
|
9.
徐明岗. 土壤活性有机质的研究进展.
土壤肥料,2000(6):3-7
|
被引
72
次
|
|
|
|
|
10.
张丽敏. 土壤有机碳分组方法概述.
中国土壤与肥料,2014(4):1-6
|
被引
19
次
|
|
|
|
|
11.
张璐. 长期施肥对中国3种典型农田土壤活性有机碳库变化的影响.
中国农业科学,2009,42(5):1646-1655
|
被引
85
次
|
|
|
|
|
12.
Logninow W. Fractionation of organic carbon based on susceptibility to oxidation.
Polish Journal of Soil Science,1987,20:47-52
|
被引
41
次
|
|
|
|
|
13.
Blair G J. Soil carbon fractions based on their degree of oxidat ion,and the development of a carbon management index for agricultural systems.
Australian Journal of Agricultural Research,1995,46(7):1459-1466
|
被引
578
次
|
|
|
|
|
14.
Lefroy R D B. Soil organic carbon changes in cracking clay soils under cotton production as studied by carbon fractionation.
Australian Journal of Agricultural Research,1997,48(7):1049-1058
|
被引
41
次
|
|
|
|
|
15.
王晓君. 岷江上游森林/干旱河谷交错带不同土地利用类型土壤有机碳和活性有机碳特征.
水土保持学报,2011,25(2):167-172
|
被引
13
次
|
|
|
|
|
16.
Zhang J H. Dual roles of tillage erosion in lateral SOC movement in the landscape.
European Journal of Soil Science,2012,63(2):165-176
|
被引
12
次
|
|
|
|
|
17.
葛方龙. 坡耕地紫色土养分空间变异对土壤侵蚀的响应.
生态学报,2007,27(2):459-464
|
被引
23
次
|
|
|
|
|
18.
邓瑞芬. 黄土坡面不同土地利用方式对土壤有机碳流失的影响.
水土保持研究,2011,18(5):104-107
|
被引
10
次
|
|
|
|
|
19.
Nie X J. Dynamics of soil organic carbon and microbial biomass carbon in relation to water erosion and tillage erosion.
Plos One,2013,8(5):1-7
|
被引
1
次
|
|
|
|
|
了解气象卫星更多信息，请访问