[1]TIAN Xiao-song,CHEN Long,ZHOU Rui-rong,et al.Effects of Different Forms of Stem Plants on Soil and Water Conservation and Nutrient Retention in Karst Areas[J].Research of Soil and Water Conservation,2014,21(04):64-68,73.
Copy
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
21
Number of periods:
2014 04
Page number:
64-68,73
Column:
Public date:
2014-08-28
- Title:
-
Effects of Different Forms of Stem Plants on Soil and Water Conservation and Nutrient Retention in Karst Areas
- Author(s):
-
TIAN Xiao-song1,3, CHEN Long2, ZHOU Rui-rong2, ZHENG Jie-bing1,3
-
1. Chongqing Key Laboratory of Exogenic Mineralization and Mine Environment, Chongqing Institute of Geology and Mineral Resources, Chongqing 400042, China;
2. Institute of Soil and Fertilizer of Guizhou Province, Guiyang 550006, China;
3. Chongqing Research Center of State Key Laboratory of Coal Resource and Safe Mining, Chongqing 400042, China
-
- Keywords:
-
karst areas; soil and water conservation; nutrient retention
- CLC:
-
S157.2;S543
- DOI:
-
-
- Abstract:
-
The soil and water conservation and nutrient retention of different planted vegetation were studied in this experiment,including Ficus pumila, Iris lactea var chinensis, Hedera nepalensis var. sinensis and Blank,by setting up 4 types of runoff plots on the 30° slope. Furthermore, based on the this study, the quantitative relationships between soil and water conservation benefits and nutrientretention benefits were discussed. The results showed that average vegetation coverage of Ficus pumila, Iris lactea var chinensis and Hedera nepalensis var.sinensis was up to 53.1%, 62.8% and 60%, respectively. Ficus pumila, Iris lactea var chinensis and Hedera nepalensis var.sinensis have the effect of soil and water conservation,but there is a significant difference in soil and water conservation effect with different planted vegetation. Ficus pumila, Iris lactea var chinensis and Hedera nepalensis var.sinensis have the effect of nutrient retention including TP, DP, TN, NO3--N, NH4+-N and K The retention benefits of TP, DP, TN, NO3--N, NH4+-N and K in the runoff plots with Ficus pumila were up to 0.58,0.64,0.54,0.86,0.64 and 0.54, respectively. The retention benefits of TP, DP, TN, NO3--N, NH4+-N and K in the runoff plots with Iris lactea var chinensis were 0.76,0.64,0.68,0.78,0.53 and 0.56, respectively. The retention benefits of TP, DP, TN, NO3--N, NH4+-N and K in the runoff plots with Hedera nepalensis var.sinensis were 0.72,0.75,0.61,0.83,0.45 and 0.58, respectively. The correlation analysis revealed that Pearson correlation coefficients between soil and water conservation benefits and nutrient retention benefits were significantly correlated, which implied that soil and water conservation is an effective way to control the nutrients in soil.