Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China; University of Chinese Academy of Sciences, Beijing 100049, China.
Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China.
Sci Total Environ. 2018 Jun 1;626:1394-1401. doi: 10.1016/j.scitotenv.2018.01.104. Epub 2018 Feb 19.
Land use changes are often considered to be the main factors influencing soil infiltration. But the difference of soil infiltration capacity for different land use type is less clear. In this paper, we conduct a meta-analysis of all 42 papers that could be found associated with the effects of land use changes on soil infiltration capacity. The results showed that soil initial and steady infiltration rates increased after land use changes from grassland to forest (+41.35%, /), shrubland to forest (+42.73%, /) and cropland to agroforestry (+70.28%, +84.17%). Soil infiltration rates declined after land use changes from grassland to cropland (/, -45.23%), shrubland to cropland (-64.24%, /) and forest to cropland (-53.58%, -42.15%). It was evident that soil infiltration rates were negatively related to soil bulk density and initial moisture and positively related to soil total porosity and organic matter content. In sum, establishing agroforestry ecosystem was beneficial to improve soil infiltration capacity compare to cropland and plantation, which has important implications for developing sustainable agriculture and forest from the viewpoint of soil and water conservation.
土地利用变化通常被认为是影响土壤入渗的主要因素。但不同土地利用类型的土壤入渗能力的差异尚不清楚。本文对所有 42 篇与土地利用变化对土壤入渗能力影响相关的论文进行了荟萃分析。结果表明，草地向林地（+41.35%，/）、灌丛向林地（+42.73%，/）和耕地向农林复合经营（+70.28%，+84.17%）的土地利用变化后，土壤初始和稳定入渗率增加。草地向耕地（/，-45.23%）、灌丛向耕地（-64.24%，/）和林地向耕地（-53.58%，-42.15%）的土地利用变化后，土壤入渗率下降。土壤入渗率与土壤容重和初始含水量呈负相关，与土壤总孔隙度和有机质含量呈正相关。总之，与耕地和人工林相比，建立农林复合生态系统有利于提高土壤入渗能力，从水土保持的角度来看，这对发展可持续农业和林业具有重要意义。
