Effects of soil and water conservation and its interactions with soil properties on soil productivity

被引：2

作者：

Guo Wang ^{[1
,2
]}

Li Zhong-wu ^{[1
,2
]}

Shen Wei-ping ^{[3
]}

Wang Xiao-yan ^{[4
]}

Zeng Guang-ming ^{[1
,2
]}

Chen Xiao-lin ^{[1
,2
]}

Zhang Xue ^{[1
,2
]}

Zhang Yue-nan ^{[1
,2
]}

Liu Gui-ping ^{[3
]}

Wang Shu-guang ^{[3
]}

机构：

[1] Hunan Univ, Coll Environm Sci & Engn, Changsha 410082, Hunan, Peoples R China

[2] Hunan Univ, Key Lab Environm Biol & Pollut Control, Minist Educ, Changsha 410082, Hunan, Peoples R China

[3] Soil & Water Conservat Res Inst, Shaoyang 422002, Peoples R China

[4] Changsha Univ Sci & Technol, Coll Civil Engn & Architecture, Changsha 410076, Hunan, Peoples R China

来源：

JOURNAL OF CENTRAL SOUTH UNIVERSITY | 2012年 / 19卷 / 08期

基金：

中国国家自然科学基金;

关键词：

hilly red soil region; soil erosion; soil organic carbon; soil productivity; CROP YIELD; RED SOIL; EROSION; IMPACTS; RESTORATION; VARIABILITY; REGION; CARBON;

D O I：

10.1007/s11771-012-1272-2

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The effects of soil and water conservation (SWC) on soil properties are well documented. However, definitive and quantitative information of SWC and its interactions with soil properties on soil productivity is lacking for hilly red soil region of southern China. Experiments were conducted in the hilly red soil region of southern China for seven years in three runoff plots, each of which represented different SWC forest-grass measures. Principal component analysis and multiple regression techniques were used to relate the aboveground biomass (representing soil productivity) to soil properties. Based on the final regression equations, soil organic carbon content (S (oc)) is significantly correlated with soil productivity under the condition of forest-grass measures, whereas pH value and cation exchange capacity (C (ec)) are the main factors for soil productivity without SWC. Therefore, SWC plays an important role in sequestering S (oc) and improving soil productivity.

引用

页码：2279 / 2285

页数：7

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